VOLUNTARY ANNOUNCEMENT - SUBSCRIPTION OF LISTED SECURITIES

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.GOLDSTREAM INVESTMENT LIMITED金涌投资有限公司 (Incorporated in the Cayman Islands with limited liability) (Stock Code: 1328) VOLUNTARY ANNOUNCEMENT SUBSCRIPTION OF LISTED SECURITIES SUBSCRIPTION OF SENSETIME CLASS B SHARES On 21 June 2024 Redwood (a wholly-owned subsidiary of the Company) through a placing agent agreed to subscribe for 12966000 SenseTime Class B Shares at an aggregate consideration of approximately HK$15560000 (exclusive of transaction costs) representing approximately HK$1.20 per SenseTime Class B Share. Completion of the Subscription took place on 27 June 2024.After the Subscription the Group holds an aggregate of 12966000 SenseTime Class B Shares representing approximately 0.037% of the total number of issued SenseTime Class B Shares (as enlarged by the allotment and issue of the SenseTime Class B Shares pursuant to the placing) as at the date of this announcement.– 1 –SUBSCRIPTION OF SENSETIME CLASS B SHARES This announcement is being made by the Company on a voluntary basis.The Board announces that on 21 June 2024 Redwood (a wholly-owned subsidiary of the Company) through a share placing agent agreed to subscribe for 12966000 SenseTime Class B Shares at an aggregate consideration of approximately HK$15560000 (exclusive of transaction costs) representing approximately HK$1.20 per SenseTime Class B Share.Completion of the Subscription took place on 27 June 2024.After the Subscription the Group holds an aggregate of 12966000 SenseTime Class B Shares representing approximately 0.037% of the total number of issued SenseTime Class B Shares as at the date of this announcement.The aggregate consideration for the Subscription have been settled in cash from the Company’s internal resources.INFORMATION ON THE COMPANY The Company and its subsidiaries are principally engaged in (i) the provision of investment management business; and (ii) the strategic direct investment business and has a strong relationship with Hony Capital.Redwood is a company incorporated in the Cayman Islands with limited liability and its principal business is strategic direct investment. As at the date of this announcement Redwood is a direct wholly-owned subsidiary of the Company.– 2 –INFORMATION ON SENSETIME Based on the information available to the Company SenseTime is a world-leading AI software company a company controlled through weighted voting rights and incorporated in the Cayman Islands with limited liability the issued SenseTime Class B Shares of which are listed on the Main Board of the Stock Exchange (Stock Codes: 0020 and 80020). SenseTime’s proprietary AI infrastructure SenseCore integrates computing power algorithms and platforms enabling SenseTime to build the “SenseNova” foundation model set and R&D system that unlocks the ability to perform general AI tasks at low cost and with high efficiency. Related products and solutions are well received by customers and partners in many industry verticals.REASONS AND BENEFITS OF THE SUBSCRIPTION The Group is principally engaged in provision of investment management services business and strategic direct investment business. The Group routinely conducts investments in companies with excellent reputation and business potential. Having considered among other things the industry-leading AI capabilities and solutions of SenseTime as well as the strategic cooperation memorandum entered by the Group with SenseTime Group Limited a wholly-owned subsidiary of SenseTime on 4 June 2024 (details as disclosed in the Company's announcement dated 5 June 2024) the Group seeks to continuously deepen its relationship with SenseTime through various channels including but not limited to direct investment collaboration on AI+Finance solutions empowering of ecosystem enterprises of each other and cooperation on overseas and domestic AI opportunities. The Group’s strategic investment in SenseTime further demonstrates the Group’s commitment to empower its portfolio with investments on AI and related applications.Based on the above the Directors are of view that the terms of the Subscription were fair and reasonable on normal commercial terms and in the interest of the Company and its shareholders as a whole.IMPLICATION UNDER THE LISTING RULES As all applicable percentage ratios under Rule 14.07 of the Listing Rules in relation to the Subscription were below 5% the Subscription did not constitute a notifiable transaction for the Company under the Listing Rules. This announcement is being made by the Company on a voluntary basis. Further announcement(s) will be made by the Company in accordance with the Listing Rules as and when appropriate.– 3 –DEFINITIONS In this announcement unless the context otherwise requires the following words and expressions shall have the following meanings: “Board” the board of Directors “Company” Goldstream Investment Limited a company incorporated in the Cayman Islands with limited liability the shares of which are listed on the Main Board of the Stock Exchange (Stock Code: 1328) and has a strong relationship with Hony Capital its controlling shareholder “Director(s)” director(s) of the Company “Group” the Company and its subsidiaries “HK$” Hong Kong dollars the lawful currency of Hong Kong “Hong Kong” Hong Kong Special Administrative Region of the People’s Republic of China “Listing Rules” the Rules Governing the Listing of Securities on the Stock Exchange “Redwood” Redwood Elite Limited a company incorporated in the Cayman Islands with limited liabil i ty and a direct wholly-owned subsidiary of the Company “SenseTime” SenseTime Group Inc. (Stock Codes: 20 and 80020) a company controlled through weighted voting rights and incorporated in the Cayman Islands with limited liability the issued SenseTime Class B Shares of which are listed on the Main Board of the Stock Exchange“SenseTime Class B ordinary class B share(s) in the capital of SenseTimeShare(s)” – 4 –“Stock Exchange” The Stock Exchange of Hong Kong Limited “Subscription” the Subscription of 12966000 SenseTime Class B Shares for an aggregate consideration of approximately HK$15560000 (exclusive of transaction costs) by the Company which was completed on 27 June 2024 “%” per cent.By Order of the Board Goldstream Investment Limited Mr. Zhao John Huan Chairman Hong Kong 27 June 2024 As at the date of this announcement the board comprises two executive Directors namely Mr. Zhao John Huan (Chairman) and Mr. Gao Ziqi (Chief Executive Officer); one non-executive Director namely Mr. Tam Terry Sze Ying; and three independent non-executive Directors namely Mr. Jin Qingjun Mr. Lee Kin Ping Christophe and Mr. Shu Wa Tung Laurence.–5–