ZLAB

SEC source: 0000905148-25-004425 · form4.xml · nonDerivative · entry 1

Edmondson Frazor Titus III · CIK 0001835780 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,086

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 12, 2025.

SEC source: 0000905148-25-004326 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 964,161

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F3 · kind: This transaction represents an annuity payment automatically made, for no consideration, from a grantor retained annuity trust for which there is an independent trustee.

SEC source: 0000905148-25-004326 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 586,641

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: This transaction represents a bona fide gift to a grantor retained annuity trust for which there is an independent trustee.

SEC source: 0000905148-25-004181 · form4.xml · nonDerivative · entry 1

Edmondson Frazor Titus III · CIK 0001835780 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,737

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 22, 2024.

SEC source: 0000905148-25-003766 · form4.xml · nonDerivative · entry 2

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,444

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · kind: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-003766 · form4.xml · derivative · entry 3

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: American Depositary Shares · 500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The Restricted Share Units vest in equal annual installments over four years beginning on 11/01/2022, the first anniversary of the date of grant. Vested shares will be delivered to the reporting person following vesting.

F5 · derivative.expiration_date: The Restricted Share Units vest in equal annual installments over four years beginning on 11/01/2022, the first anniversary of the date of grant. Vested shares will be delivered to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003766 · form4.xml · nonDerivative · entry 1

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,684

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-003502 · form4.xml · nonDerivative · entry 2

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,184

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · kind: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-003502 · form4.xml · derivative · entry 3

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 920

Underlying: American Depositary Shares · 920 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The Restricted Share Units vest in equal annual installments over five years beginning on 10/01/2022, the first anniversary of the date of grant. Vested shares will be delivered to the reporting person following vesting.

F5 · derivative.expiration_date: The Restricted Share Units vest in equal annual installments over five years beginning on 10/01/2022, the first anniversary of the date of grant. Vested shares will be delivered to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003502 · form4.xml · nonDerivative · entry 1

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,640

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-003326 · form4.xml · nonDerivative · entry 1

Smiley Joshua L · CIK 0001725189 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,604

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The sales by the Reporting Person on August 18, 2025 (reported on the Form 4 filed on August 19, 2025) and on April 2, 2025 (reported on the Form 4 filed on April 3, 2025) of an aggregate 10,000 ADSs were matchable under Section 16(b) of the Exchange Act with the purchase by the Reporting Person of 10,000 ADSs on September 10, 2025 (reported herein). The Reporting Person has agreed to deliver a payment to the Issuer in the amount of $72,111.22, which represents the full amount of the profit realized in connection with these short-swing transactions under Section 16(b) of the Exchange Act.

SEC source: 0000905148-25-003280 · form4.xml · derivative · entry 3

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: American Depositary Shares · 604,376 shares

Expires 2026-03-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Stock Options fully vested as of March 9, 2021.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003280 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 890,019

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003280 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,141,338

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003061 · form4.xml · nonDerivative · entry 2

Smiley Joshua L · CIK 0001725189 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,604

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-003060 · form4.xml · nonDerivative · entry 2

Edmondson Frazor Titus III · CIK 0001835780 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,065

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-003036 · form4.xml · nonDerivative · entry 3

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,720

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F5 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2025.

SEC source: 0000905148-25-003036 · form4.xml · nonDerivative · entry 2

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,548

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-003061 · form4.xml · derivative · entry 3

Smiley Joshua L · CIK 0001725189 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,800

Underlying: American Depositary Shares · 15,900 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The RSUs vest in equal annual installments over five years beginning on 08/15/2023, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F5 · derivative.expiration_date: The RSUs vest in equal annual installments over five years beginning on 08/15/2023, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003061 · form4.xml · nonDerivative · entry 1

Smiley Joshua L · CIK 0001725189 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,245

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-003060 · form4.xml · derivative · entry 3

Edmondson Frazor Titus III · CIK 0001835780 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: American Depositary Shares · 4,850 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The RSUs vest in equal annual installments over five years beginning on 08/17/2021, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F5 · derivative.expiration_date: The RSUs vest in equal annual installments over five years beginning on 08/17/2021, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003060 · form4.xml · nonDerivative · entry 1

Edmondson Frazor Titus III · CIK 0001835780 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,948

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-003036 · form4.xml · derivative · entry 4

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,500

Underlying: American Depositary Shares · 1,250 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F6 · derivative.exercise_date: The RSUs vest in equal annual installments over four years beginning on 08/14/2024, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F6 · derivative.expiration_date: The RSUs vest in equal annual installments over four years beginning on 08/14/2024, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-003036 · form4.xml · nonDerivative · entry 1

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,158

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-002978 · form4.xml · derivative · entry 6

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: American Depositary Shares · 46,387 shares

Expires 2025-10-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The Stock Options fully vested as of October 22, 2020.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002978 · form4.xml · nonDerivative · entry 4

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,962

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2024.

F4 · price: Reflects a weighted average sale price of $35.4687 per share, at prices ranging from $34.845 to $35.80 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

SEC source: 0000905148-25-002978 · form4.xml · nonDerivative · entry 3

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 583,349

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002978 · form4.xml · derivative · entry 5

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,387

Underlying: American Depositary Shares · 50,000 shares

Expires 2025-10-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The Stock Options fully vested as of October 22, 2020.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002978 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,962

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2024.

F3 · price: Reflects a weighted average sale price of $34.2511 per share, at prices ranging from $33.70 to $34.60 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

SEC source: 0000905148-25-002978 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 586,962

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002834 · form4.xml · derivative · entry 6

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 96,387

Underlying: American Depositary Shares · 50,000 shares

Expires 2025-10-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The Stock Options fully vested as of October 22, 2020.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002834 · form4.xml · nonDerivative · entry 4

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,962

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2024.

F4 · price: Reflects a weighted average sale price of $34.6363 per share, at prices ranging from $34.22 to $35.19 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

SEC source: 0000905148-25-002834 · form4.xml · nonDerivative · entry 3

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 586,962

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002834 · form4.xml · derivative · entry 5

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 146,387

Underlying: American Depositary Shares · 50,000 shares

Expires 2025-10-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The Stock Options fully vested as of October 22, 2020.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002834 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,962

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2024.

F3 · price: Reflects a weighted average sale price of $34.7431 per share, at prices ranging from $34.095 to $35.00 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

SEC source: 0000905148-25-002834 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 586,962

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002836 · form4.xml · nonDerivative · entry 1

Amado Rafael · CIK 0001662119 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,178

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 22, 2024.

SEC source: 0000905148-25-002835 · form4.xml · nonDerivative · entry 1

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,908

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · kind: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2025.

SEC source: 0000905148-25-002336 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 536,962

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-002344 · form4.xml · derivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,194

Underlying: American Depositary Shares · 44,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Share Unit ("RSU") represents a contingent right to receive one American Depositary Share ("ADS").

F2 · derivative.exercise_date: The RSUs vest in equal annual installments over four years beginning on 07/02/2026, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F2 · derivative.expiration_date: The RSUs vest in equal annual installments over four years beginning on 07/02/2026, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F3 · derivative.underlying: Each ADS represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002336 · form4.xml · derivative · entry 3

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,000

Underlying: American Depositary Shares · 18,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The RSUs vest in equal annual installments over four years beginning on 07/01/2025, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F5 · derivative.expiration_date: The RSUs vest in equal annual installments over four years beginning on 07/01/2025, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002336 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 544,034

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-002291 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 526,034

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-002291 · form4.xml · derivative · entry 3

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,940

Underlying: American Depositary Shares · 17,970 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The RSUs vest in equal annual installments over four years beginning on 06/29/2024, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F5 · derivative.expiration_date: The RSUs vest in equal annual installments over four years beginning on 06/29/2024, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002291 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 532,952

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.

SEC source: 0000905148-25-002263 · form4.xml · nonDerivative · entry 2

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,982

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-002264 · form4.xml · nonDerivative · entry 2

Edmondson Frazor Titus III · CIK 0001835780 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,098

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-002262 · form4.xml · nonDerivative · entry 2

Chen Yajing · CIK 0001985694 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,004

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F4 · shares: These ADSs were sold automatically to cover taxes upon vesting of RSUs.

SEC source: 0000905148-25-002263 · form4.xml · derivative · entry 3

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,800

Underlying: American Depositary Shares · 58,800 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one ADS.

F5 · derivative.exercise_date: The RSUs vest in equal annual installments over four years beginning on 06/25/2023, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F5 · derivative.expiration_date: The RSUs vest in equal annual installments over four years beginning on 06/25/2023, the first anniversary of the date of grant. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.

F1 · derivative.underlying: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

SEC source: 0000905148-25-002263 · form4.xml · nonDerivative · entry 1

Du Ying · CIK 0001731790 · Director · Chairperson & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 538,651

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2 · shares: ADSs acquired upon vesting of Restricted Share Units ("RSUs").

F3 · price: Each RSU represents a contingent right to receive one ADS.