EAF

SEC source: 0001140361-23-060303 · form4.xml · nonDerivative · entry 3

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,404,650

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060303 · form4.xml · nonDerivative · entry 2

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,584,792

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060303 · form4.xml · nonDerivative · entry 1

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,686,142

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060299 · form4.xml · nonDerivative · entry 5

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,404,634

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060299 · form4.xml · nonDerivative · entry 4

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,404,641

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060299 · form4.xml · nonDerivative · entry 3

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,404,650

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060299 · form4.xml · nonDerivative · entry 2

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,584,792

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-060299 · form4.xml · nonDerivative · entry 1

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,686,142

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 28, 2023, the Reporting Persons sold an aggregate of 593,200 shares of Common Stock. Represents (i) 101,174 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 101,350 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 180,142 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 210,518 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F4 · balance_after: Following the Sales, consists of (i) 7,211,220 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,223,728 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 12,939,581 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 612 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 471 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F5 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F6 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F7 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F8 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F9 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 15

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,316

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 14

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,323

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 13

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,332

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 12

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,984,722

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 11

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,095,777

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 15

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,316

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 14

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,323

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 13

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,332

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 12

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,984,722

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 11

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,095,777

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 15

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,316

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 14

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,323

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 13

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,787,332

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 12

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 27,984,722

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 11

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,095,777

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F4 · shares: On December 27, 2023, the Reporting Persons sold an aggregate of 650,000 shares of Common Stock. Represents (i) 110,863 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 111,055 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 197,390 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 9 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 7 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 230,676 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 10

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,640

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 9

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,646

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 8

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,653

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 7

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,360,557

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 6

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,447,145

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 10

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,640

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 9

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,646

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 8

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,653

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 7

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,360,557

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 6

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,447,145

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 10

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,640

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 9

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,646

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 8

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,206,653

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 7

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,360,557

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 6

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,447,145

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F3 · shares: On December 26, 2023, the Reporting Persons sold an aggregate of 506,800 shares of Common Stock. Represents (i) 86,439 shares of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 86,588 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 153,904 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 7 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 179,856 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 5

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,584

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 4

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,590

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 3

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,598

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 2

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,700,621

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059661 · form4.xml · nonDerivative · entry 1

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield Private Funds Holdings Inc. · CIK 0001504723 · 10% owner

Brookfield BBP Canadian GP L.P. · CIK 0001819104 · 10% owner

Brookfield Business L.P. · CIK 0001819046 · 10% owner

Brookfield Business Partners Ltd · CIK 0001819045 · 10% owner

BCP IV (US Plan) LP · CIK 0001819076 · 10% owner

BCP IV (UK Plan) LP · CIK 0001819087 · 10% owner

BCP IV (Cdn Plan) LP · CIK 0001819093 · 10% owner

BCP IV Bermuda Investor LP · CIK 0001819102 · 10% owner

Brookfield BBP (Canada) L.P. · CIK 0001819406 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,794,590

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 5

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,584

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 4

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,590

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 3

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,598

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 2

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,700,621

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059663 · form4.xml · nonDerivative · entry 1

BCP GP Ltd · CIK 0001685160 · 10% owner

Brookfield BBP Canada Holdings Inc. · CIK 0001819405 · 10% owner

Brookfield CanGP Ltd · CIK 0001819217 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,794,590

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 5

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,584

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0001140361-23-059659 · form4.xml · nonDerivative · entry 4

BCP GP Ltd · CIK 0001685160 · 10% owner

BROOKFIELD Corp /ON/ · CIK 0001001085 · 10% owner

Brookfield Capital Partners Ltd. · CIK 0001685158 · 10% owner

BPE IV (Non-Cdn) · CIK 0001738295 · 10% owner

BCP IV GrafTech Holdings L.P. · CIK 0001642338 · 10% owner

Brookfield Business Partners L.P. · CIK 0001654795 · 10% owner

Brookfield Private Equity Group Holdings LP · CIK 0001685157 · 10% owner

Brookfield Private Equity Inc. · CIK 0001685113 · 10% owner

Brookfield Private Equity Holdings LLC · CIK 0001703248 · 10% owner

Brookfield US Inc. · CIK 0001768973 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 28,533,590

F1 · shares: The sales reported in this Form 4 (the "Sales") were effected pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Securities Act").

F2 · shares: On December 22, 2023, the Reporting Persons sold an aggregate of 550,000 shares of Common Stock. Represents (i) 93,807 of Common Stock sold on behalf of BPE IV (Non-Cdn) GP LP; (ii) 93,969 shares of Common Stock sold on behalf of Brookfield BBP (Canada) L.P.; (iii) 167,023 shares of Common Stock sold on behalf of Brookfield BBP Canada Holdings Inc.; (iv) 8 shares of Common Stock sold on behalf of Brookfield Private Funds Holdings Inc.; (v) 6 shares of Common Stock sold on behalf of BCP IV Bermuda Investor LP and (vi) 195,187 shares of Common Stock sold by BCP GrafTech IV Holdings L.P. on behalf of certain third party limited partners in which the Reporting Persons do not have a pecuniary interest.

F5 · balance_after: Following the Sales, consists of (i) 7,346,505 shares of Common Stock held directly by BPE IV (Non-Cdn) GP LP, for itself and as nominee for BCP IV (US Plan) LP, BCP IV (UK Plan) LP and BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP; (ii) 7,359,249 shares of Common Stock held directly by Brookfield BBP (Canada) L.P.; (iii) 13,080,458 shares of Common Stock held directly by Brookfield BBP Canada Holdings Inc.; (iv) 624 shares of Common Stock held directly by Brookfield Private Funds Holdings Inc.; and (v) 480 shares of Common Stock held directly by BCP IV Bermuda Investor LP.

F6 · ownership.nature: Brookfield Corporation ("BN"), by virtue of its relationships with these entities, may be deemed to share beneficial ownership of all of these shares.

F7 · ownership.nature: BPE IV (Non-Cdn) GP LP, Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV, may be deemed to share beneficial ownership in the shares held directly by BCP IV. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BPE IV (Non-Cdn) GP LP, BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP for itself and as nominee for BCP IV (UK Plan) LP, BCP IV (Cdn Plan) LP and BCP IV Bermuda Investor LP.

F8 · ownership.nature: Brookfield Private Equity Holdings LLC, Brookfield US Inc. and BN, by virtue of their relationships with BCP IV (US Plan) LP, may be deemed to share beneficial ownership in the shares held directly by BPE IV (Non-Cdn) GP LP as nominee for BCP IV (US Plan) LP. Brookfield BBP Canadian GP L.P., Brookfield CanGP Limited, Brookfield Private Equity Inc. and BN, by virtue of their relationships with Brookfield BBP (Canada) L.P., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP (Canada) L.P.

F9 · ownership.nature: Brookfield Business L.P., Brookfield Business Partners L.P., Brookfield Business Partners Limited and BN, by virtue of their relationships with Brookfield BBP Canada Holdings Inc., may be deemed to share beneficial ownership in the shares held directly by Brookfield BBP Canada Holdings Inc. Brookfield Capital Partners Ltd., BCP GP Limited, Brookfield Private Equity Group Holdings LP, Brookfield Private Equity Inc. and BN, by virtue of their relationships with BCP IV Bermuda Investor LP, may be deemed to share beneficial ownership in the shares held directly by BCP IV Bermuda Investor LP.

F10 · ownership.nature: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.