Hong Kong Exchanges and Clearing Limited

FORM 3A - Director/Chief Executive Notice - Interests in Shares of Listed Corporation

Form Serial Number:

DA20221215E00268

1. Date of relevant event:

12/12/2022
(dd/mm/yyyy)

2. Date when director became aware of the relevant event/ interest in the shares (if later):

(dd/mm/yyyy)

3. Stock code:

02359

4. Name of listed corporation:

WuXi AppTec Co., Ltd. - H Shares

5. Class of shares:

H Shares

6. Number of issued shares in class:

395,265,206

7. Name of director (English) as printed on HKID Card/Passport:

(Surname)	Yang
(Other names)	Steve Qing

10. Name of director (Chinese):

楊青

11. Chinese Character Code as printed on HKID Card:

24. Details of relevant event:

Brief description of relevant event

Capacity in which shares were/are held

Number of shares bought/sold or involved

Currency of transaction

On Exchange

Off Exchange

Before relevant event

After relevant event

Highest price (per share)

Average price (per share)

Average consideration (per share)

Consideration code

Long position

1213	The number of shares in which you are interested has reduced because: any other event (you must briefly describe the relevant event in the Supplementary Information box)

2101	Beneficial owner

8,286

HKD

77.8500

77.1614

Short position

25. Total shares in listed corporation immediately before the relevant event:

	Total number of shares	Percentage figure (%)
Long position	113,478	0.02

26. Total shares in listed corporation immediately after the relevant event:

	Total number of shares	Percentage figure (%)
Long position	105,192	0.02

27. Capacity in which interests disclosed in Box 26 are held:

Code describing capacity

Number of shares

2101	Beneficial owner

Long position

105,192

28. Further information in derivative interests in listed corporation :

Derivatives code

Exercise period (dd/mm/yyyy)

Consideration - if derivatives granted by listed corporation

Number of shares

Begins

Ends

Currency

Price for grant

Currency

Exercise price

Currency

Price on assignment

Long position

4108	Unlisted derivatives - Other (you must describe the category of derivatives in the Supplementary Information box)

HKD

88,502

29. Further information in relation to interests of children under 18 and/or spouse:

Child/Spouse	Name of child/spouse	Number of shares

30. Further information in relation to interests of corporations controlled by Director:

Name of controlled corporation	Address and place of incorporation	Name of controlling person	% control	Direct interest (Y/N)	Number of shares

31. Further information in relation to interests held by Director jointly with another person:

Name of joint shareholder	Address	Number of shares

32. Further information from a director who is a trustee, or beneficiary of a trust, or a person who has set up a Discretionary Trust:

Names of Trust

Address

Status code

Number of shares

Computershare Hong Kong Trustees Limited

Addresses of individuals are not displayed.

5102	Beneficiary of a trust (other than a discretionary interest)

Long position

105,192

33. Further information from a party to an agreement under Section 317 (Please see Notes for further information required):

Names of other parties	Address	Number of shares

Total number of shares in which a director is interested under sections 317 and 318

34. Supplementary information:

8,286 underlying award shares of the vested awards granted under the 2020 H Share Award and Trust Scheme of WuXi AppTec Co., Ltd. beneficially owned by Steve Qing Yang were sold by Computershare Hong Kong Trustees Limited on December 08, 2022 (settled on December 12, 2022) on his behalf for the purpose of satisfying relevant tax liabilities under the scheme rules without the involvement of any dealing in shares conducted by Steve Qing Yang himself.

35. Log/Serial Number of the previous form:

36. Number of concert party document(s) under section 317 attached/uploaded:

Date of filing this Form 3A:

15/12/2022
(dd/mm/yyyy)