FORM 2 - Corporate Substantial Shareholder Notice
 
Form Serial Number: CS20260716E00353 
1. Date of relevant event: 13/07/2026
(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: 02162
4. Name of listed corporation: Keymed Biosciences Inc. - B 
5. Class of shares: Ordinary Shares 
6. Number of issued shares in class: 298,735,566
7. Name of substantial shareholder: The Goldman Sachs Group, Inc. 
8. Registered office: Corporation Trust Center, 1209 Orange Street, Wilmington, DE 19801, USA
9. Principal place of business in Hong Kong: Nil 
15. Exchange on which listed: New York Stock Exchange
16. Name of listed parent and exchange on which parent is listed: Nil 
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
1001You first acquire a notifiable interest because:
you purchased the shares
2201Interest of corporation controlled by you
 287,500 HKD 84.8500 81.1877
Short position 
 
 
 		            
18. Total shares immediately before the relevant event:
 Total number of sharesPercentage figure (%)
Long position14,656,2984.91
Short position9,163,9853.07
19. Total shares immediately after the relevant event:
 Total number of sharesPercentage figure (%)
Long position14,943,7985.00
Short position9,163,9853.07
20. Capacity in which interests disclosed in Box 19 are held:
Capacity codeNumber of shares
2201Interest of corporation controlled by you
Long position14,943,798
Short position9,163,985

21. Further information in respect of derivative interests:
Derivatives codeNumber of shares
4105Unlisted derivatives - Physically settled
Long position3,985,000
Short position0
4106Unlisted derivatives - Cash settled
Long position187,845
Short position2,111,000
22. Further information in relation to interests of corporations controlled by substantial shareholder:
Name of controlled corporationAddress and place of incorporationName of controlling person% controlDirect interest (Y/N)Number of shares
Goldman Sachs (UK) L.L.C.Corporation Trust Center, 1209 Orange Street, Wilmington, DE 19801, USAThe Goldman Sachs Group, Inc.100.00N
Long position14,913,845
Short position9,163,985
Goldman Sachs Group UK LimitedPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGoldman Sachs (UK) L.L.C.100.00N
Long position14,913,845
Short position9,163,985
Goldman Sachs InternationalPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGoldman Sachs Group UK Limited100.00Y
Long position14,913,845
Short position9,163,985
GSAM Holdings LLC251 Little Falls Dr., Wilmington, DE 19808, USAThe Goldman Sachs Group, Inc.100.00N
Long position29,953
Short position0
GSAMI Holdings I LLC251 Little Falls Drive, Wilmington, DE 19808, USAGSAM Holdings LLC100.00N
Long position29,953
Short position0
GSAM Holdings II LLC251 Little Falls Drive, Wilmington, DE 19808, USAGSAM Holdings LLC100.00N
Long position29,953
Short position0
GSAMI Holdings II LTDPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGSAMI Holdings I LLC52.75N
Long position29,953
Short position0
GSAMI Holdings II LTDPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGSAMI Holdings III LTD47.25N
Long position29,953
Short position0
GSAMI Holdings III LTDPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGSAMI Holdings I LLC100.00N
Long position29,953
Short position0
GSAMI Holdings III LTDPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGSAM Holdings II LLC100.00N
Long position29,953
Short position0
Goldman Sachs Asset Management International Holdings LTDPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGSAMI Holdings II LTD100.00N
Long position29,953
Short position0
Goldman Sachs Asset Management International Holdings LTDPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGSAMI Holdings III LTD100.00N
Long position29,953
Short position0
Goldman Sachs Asset Management InternationalPlumtree Court, 25 Shoe Lane, London, EC4A 4AU, GBRGoldman Sachs Asset Management International Holdings LTD100.00Y
Long position29,953
Short position0

23. Further information in relation to interests held by substantial shareholder jointly with another person:
Name of joint shareholderAddressNumber of shares
 
24. Further information from a trustee, a beneficiary of a trust, or a person who set up a discretionary trust:
Names of trustAddressStatus codeNumber of shares
  
25. Further information from a party to an agreement under Section 317 (Please see Notes for further information required):
Names of other partiesAddressNumber 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:
NamesAddressRelationship CodePercentage (%)
  
 
27. Supplementary information:
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: 16/07/2026
(dd/mm/yyyy)