FORM 2 - Corporate Substantial Shareholder Notice
 
Form Serial Number: CS20260715E00015 
1. Date of relevant event: 09/07/2026
(dd/mm/yyyy)
2. Date when the substantial shareholder becomes aware of the relevant event / interest in the shares (if later): 10/07/2026
(dd/mm/yyyy)
3. Stock code: 01377
4. Name of listed corporation: 廣東鼎泰高科技術股份有限公司 - H股 
5. Class of shares: H Shares 
6. Number of issued shares in class: 12,632,000
7. Name of substantial shareholder: 國泰海通證券股份有限公司 
8. Registered office: 中國（上海）自由貿易試驗區商城路618號，郵政編碼200120
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: 上海交易所及香港交易所
16. Name of listed parent and exchange on which parent is listed: 無 
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
911,300 HKD
Short position 
 
 
 		            
18. Total shares immediately before the relevant event:
 Total number of sharesPercentage figure (%)
Long position00.00
19. Total shares immediately after the relevant event:
 Total number of sharesPercentage figure (%)
Long position911,3007.21
20. Capacity in which interests disclosed in Box 19 are held:
Capacity codeNumber of shares
2201Interest of corporation controlled by you
Long position911,300

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
Guotai Haitong Financial Holdings LimitedRoom 1506-08,15/F, One Exchange Square, 8 Connaught Place,Central, Hong KongGuotai Haitong Securities Co., Ltd.100.00N
Long position911,300
Guotai Junan International Holdings Limited27th Floor, Low Block, Grand Millennium Plaza, 181 Queen's Road Central, Hong KongGuotai Haitong Financial Holdings Limited73.92N
Long position911,300
Guotai Junan Financial Products Limited27th Floor, Low Block, Grand Millennium Plaza, 181 Queen's Road Central, Hong KongGuotai Junan International Holdings Limited100.00Y
Long position911,300

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: Guotai Haitong Securities Co., Ltd. acquired a notifiable interest in 1377.HK (GUANGDONG DTECH TECHNOLOGY CO., LTD. - H SHARES) due to hedging of 911,300 shares conducted by Guotai Junan Financial Products Limited in relation to a total return swap with client
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: 15/07/2026
(dd/mm/yyyy)