FORM 1 - Individual Substantial Shareholder Notice
 
Form Serial Number: IS20260804E00116
1. Date of relevant event: 30/07/2026
(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: 02255
4. Name of listed corporation: 海昌海洋公園控股有限公司 
5. Class of shares: Ordinary Shares 
6. Number of issued shares in class: 13,214,002,000
7. Name of substantial shareholder (English) as printed on HKID Card/Passport:
(Surname) Yu
(Other names) Fa-xiang
10. Name of substantial shareholder (Chinese): 俞发祥 
11. Chinese Character Code as printed on HKID Card:
 
14. 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 
1302There has been a change in nature of your interest in the shares because:
you have entered into an agreement for the sale of shares in which you are interested but are not required to deliver them within 4 trading days
 
2201Interest of corporation controlled by you
 
2201Interest of corporation controlled by you
 		 1,674,553,828  HKD      0.4500 
3101Cash
 
Short position 
 
 
 		            
15. Total shares immediately before the relevant event:
 Total number of sharesPercentage figure (%)
Long position5,100,000,00038.60
 
16. Total shares immediately after the relevant event:
 Total number of sharesPercentage figure (%)
Long position5,100,000,00038.60
 
17. Capacity in which interests disclosed in Box 16 are held:
Capacity codeNumber of shares
2201Interest of corporation controlled by you
Long position5,100,000,000
 
18. Further information in respect of derivative interests:
Derivatives codeNumber of shares
  
 
19. Further information in relation to interests of children under 18 and/or spouse:
Child/SpouseName of child/spouseNumber of shares
 
 
20. Further information in relation to interests of corporations controlled by substantial shareholder:
Name of controlled corporationAddress and place of incorporationName of controlling shareholder% controlDirect interest (Y/N)Number of shares
Sunriver Holding Group Co., Ltd. 祥源控股集團有限責任公司浙江省绍兴市越城区灵芝街道后墅路299号祥源大厦1601-1室Yu Fa-xiang 俞发祥4.50N
Long position5,100,000,000
Anhui Xiangyu Enterprise Management Consulting Co.,Ltd.安徽祥譽企業管理諮詢有限公司合肥市庐阳区濉溪路310号翡丽时代广场商业综合楼A2306Yu Fa-xiang 俞发祥0.20N
Long position5,100,000,000
Sunriver Holding Group Co., Ltd. 祥源控股集團有限責任公司浙江省绍兴市越城区灵芝街道后墅路299号祥源大厦1601-1室Anhui Xiangyu Enterprise Management Consulting Co.,Ltd.安徽祥譽企業管理諮詢有限公司25.00N
Long position5,100,000,000
Shanghai Sunriver Original Information Consulting Co., Ltd. 上海祥源原信息諮詢有限公司上海市闵行区红松东路1100号3幢1401室Yu Fa-xiang 俞发祥100.00N
Long position5,100,000,000
Sunriver Holding Group Co., Ltd. 祥源控股集團有限責任公司浙江省绍兴市越城区灵芝街道后墅路299号祥源大厦1601-1室Shanghai Sunriver Original Information Consulting Co., Ltd. 上海祥源原信息諮詢有限公司60.75N
Long position5,100,000,000
Shengzhou Sunriver Equity Investment Partnership (Limited Partnership) 嵊州市祥源股權投資合夥企業(有限合夥)浙江省绍兴市嵊州市三江街道官河南路575号华汇大厦北楼808Sunriver Holding Group Co., Ltd. (as general partner) 祥源控股集團有限責任公司(作為普通合夥人)0.00N
Long position5,100,000,000
Anhui Xianghuiyuan Enterprise Management Co.,Ltd.安徽祥卉源企業管理有限公司安徽省合肥市庐阳区濉溪路310号翡丽时代广场商业综合楼A-1807Sunriver Holding Group Co.,Ltd.祥源控股集團有限責任公司95.00N
Long position5,100,000,000
Anhui Xianghuiyuan Enterprise Management Co.,Ltd.安徽祥卉源企業管理有限公司安徽省合肥市庐阳区濉溪路310号翡丽时代广场商业综合楼A-1807Hefei Kunyou Enterprise Management Consulting Co.,Ltd.合肥堃佑企業管理諮詢有限公司5.00N
Long position5,100,000,000
Hefei Kunyou Enterprise Management Consulting Co.,Ltd.合肥堃佑企業管理諮詢有限公司安徽省合肥市庐阳区濉溪路310号21层2103室Sunriver Holding Group Co.,Ltd.祥源控股集團有限責任公司100.00N
Long position5,100,000,000
Shanghai Sunriver Yuancun Economic Development Co.,Ltd.(as limited partnership)上海祥源原村经济发展有限公司中国（上海）自由贸易试验区临港新片区老芦公路536号Sunriver Holding Group Co.,Ltd.祥源控股集團有限責任公司95.00N
Long position5,100,000,000
Shanghai Sunriver Yuancun Economic Development Co.,Ltd.(as limited partnership)上海祥源原村经济发展有限公司中国（上海）自由贸易试验区临港新片区老芦公路536号Anhui Xianghuiyuan Enterprise Management Co.,Ltd.安徽祥卉源企業管理有限公司5.00N
Long position5,100,000,000
Shengzhou Sunriver Equity Investment Partnership (Limited Partnership) 嵊州市祥源股權投資合夥企業(有限合夥)浙江省绍兴市嵊州市三江街道官河南路575号华汇大厦北楼808Shanghai Sunriver Yuancun Economic Development Co.,Ltd.(as limited partnership)上海祥源原村经济发展有限公司(作为有限合伙人)50.00N
Long position5,100,000,000
Shanghai Sunriver Xinghai Tourism Development Co., Ltd. 上海祥源星海旅遊發展有限公司中国(上海)自由贸易试验区临港新片区松萝路355、395、399号6幢E区Shengzhou Sunriver Equity Investment Partnership (Limited Partnership) 嵊州市祥源股權投資合夥企業(有限合夥)57.57N
Long position5,100,000,000
Sunriver Starrysea Tourism (Hong Kong) Co.,Ltd. 祥源星海旅遊(香港)有限公司Unit 417, 4th Floor, Lippo Centre, Tower Two, No. 89 Queensway, Admiralty, Hong KongShanghai Sunriver Xinghai Tourism Development Co., Ltd. 上海祥源星海旅遊發展有限公司100.00N
Long position5,100,000,000
Sunriver Starrysea Tourism (Cayman) Co.,Ltd. 祥源星海旅遊(開曼)有限公司Aequitas International Management Ltd., Grand Pavilion Commercial Centre, 802 West Bay Road, P.O. Box 10281, Grand Cayman KY1-1003, Cayman IslandsSunriver Starrysea Tourism (Hong Kong) Co.,Ltd. 祥源星海旅遊(香港)有限公司100.00Y
Long position5,100,000,000
 
21. Further information in relation to interests held by substantial shareholder jointly with another person:
Name of joint shareholderAddressNumber of shares
 
 
22. Further information from a trustee, a beneficiary of a trust, or a person who has set up a discretionary trust:
Names of trustAddressStatus codeNumber of shares
  
 
23. 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
 
24. Supplementary information: 如上市公司海昌海洋公园控股有限公司于2026年7月30日所发布的公告所述，Sunriver Starrysea Tourism (Cayman) Co., Ltd. 与 HH SeaPark Holding limited 订立了一份协议书，约定以约753.55百万港元的现金对价向 HH SeaPark Holding limited 出售1,674,553,828股上市公司股份。第20项中上海祥源原村经济发展有限公司及祥源控股集團有限責任公司分别持有嵊州市祥源股權投資合夥企業(有限合夥)的49.9996%及0.0008%合伙份额。
25. Log/Serial Number of the previous form:
26. Number of concert party document(s) under section 317 attached/uploaded:
Date of filing this Form 1: 04/08/2026
(dd/mm/yyyy)