Hong Kong Exchanges and Clearing Limited

FORM 2 - Corporate Substantial Shareholder Notice

Form Serial Number:

CS20180608E00411

1. Date of relevant event:

05/06/2018
(dd/mm/yyyy)

2. Date when the substantial shareholder becomes aware of the relevant event / interest in the shares (if later):

(dd/mm/yyyy)

3. Stock code:

01548

4. Name of listed corporation:

Genscript Biotech Corporation

5. Class of shares:

Ordinary Shares

6. Number of issued shares in class:

1,757,924,795

7. Name of substantial shareholder:

Genscript Corporation

8. Registered office:

Suite 606, 1220 N. Market Street, Wilmington, DE 19801, County of New Castle, USA

9. Principal place of business in Hong Kong:

香港灣仔皇后大道東28號金鐘匯中心18樓

15. Exchange on which listed:

16. Name of listed parent and exchange on which parent is listed:

17. 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)

Nature of consideration

Long position

1711	Miscellaneous Other (you must briefly describe the relevant event in the Supplementary Information box)

2101	Beneficial owner

2101	Beneficial owner

75,000,000

HKD

26.5000

Short position

14012

You came to have a short position of 1% or more in the shares, or the percentage level of your short position in such shares increased because:
you became the holder of, wrote or issued equity derivatives under which (choose one):
you are under an obligation to deliver the underlying shares

2101	Beneficial owner

2101	Beneficial owner

75,000,000

18. Total shares immediately before the relevant event:

	Total number of shares	Percentage figure (%)
Long position	887,402,024	50.48

19. Total shares immediately after the relevant event:

	Total number of shares	Percentage figure (%)
Long position	887,402,024	50.48
Short position	75,000,000	4.26

20. Capacity in which interests disclosed in Box 19 are held:

Capacity code

Number of shares

2101	Beneficial owner

Long position	887,402,024
Short position	75,000,000

21. Further information in respect of derivative interests:

Derivatives code	Number of shares

22. Further information in relation to interests of corporations controlled by substantial shareholder:

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

23. Further information in relation to interests held by substantial shareholder jointly with another person:

Name of joint shareholder	Address	Number of shares

24. Further information from a trustee, a beneficiary of a trust, or a person who set up a discretionary trust:

Names of trust	Address	Status code	Number of shares

25. 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 substantial shareholder is interested under sections 317 and 318

26. Details of person(s) in accordance with whose directions the substantial shareholder or its directors are accustomed to act:

Names

Address

Relationship Code

Percentage (%)

Zhang Fangliang

Addresses of individuals are not displayed.

6104	Controller is a director

28.83

27. Supplementary information:

Relevant event (box 17): Pursuant to a placing and subscription agreement dated 5 June 2018, Genscript Corporation conditionally agreed to subscribe for 75,000,000 shares at subscription price of HK$26.5 per share. Completion of the subscription is expected to take place on 12 June 2018.

28. Log/Serial Number of the previous form:

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

Date of filing this Form 2:

08/06/2018
(dd/mm/yyyy)