FORM 2 - Corporate Substantial Shareholder Notice
 
Form Serial Number: CS20260909E00266 
1. Date of relevant event: 07/09/2026
(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: 02228
4. Name of listed corporation: XtalPi Holdings Ltd. 
5. Class of shares: Ordinary Shares 
6. Number of issued shares in class: 4,303,015,179
7. Name of substantial shareholder: QuantumPharm Holdings Limited 
8. Registered office: Nerine Chambers, P.O. Box 905, Road Town, Tortola, VG1110, British Virgin Islands
9. Principal place of business in Hong Kong: N/A 
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
1213The percentage level of your interest in the shares has reduced because:
any other event (you must briefly describe the relevant event in the Supplementary Information box)
2201Interest of corporation controlled by you
454,500
Short position 
 
 
 		            
18. Total shares immediately before the relevant event:
 Total number of sharesPercentage figure (%)
Long position657,708,05815.28
19. Total shares immediately after the relevant event:
 Total number of sharesPercentage figure (%)
Long position657,253,55815.27
20. Capacity in which interests disclosed in Box 19 are held:
Capacity codeNumber of shares
2101Beneficial owner
Long position222,126,400
2201Interest of corporation controlled by you
Long position435,127,158

21. Further information in respect of derivative interests:
Derivatives codeNumber of shares
  
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
QuantumPharm Roc Holdings LimitedNerine Chambers, P.O. Box 905, Road Town, Tortola, VG1110, British Virgin IslandsQuantumPharm Holdings Limited100.00Y
Long position233,628,518
Crete Helix Ltd.Nerine Chambers, P.O. Box 905, Road Town, Tortola, VG1110, British Virgin IslandsMH International Holdings Limited99.00Y
Long position113,684,500
SeveningBAlpha LimitedNerine Chambers, P.O. Box 905, Road Town, Tortola, VG1110, British Virgin IslandsLPHappy Holding Limited99.00Y
Long position87,814,140

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 (%)
WSH Family Holdings LimitedAddresses of individuals are not displayed.
6101Controller is your immediate holding company
99.00
温书豪Addresses of individuals are not displayed.
6104Controller is a director
100.00
 
27. Supplementary information: 由于首次公开发售前员工持股计划持股平台QuantumPharm Roc Holdings Limited无偿退回的454,500股份被注销，其持有的股份数及股比下降。
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: 09/09/2026
(dd/mm/yyyy)