VOLUNTARY ANNOUNCEMENT - STRATEGIC COOPERATION WITH SENSETIME

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 STRATEGIC COOPERATION WITH SENSETIME This announcement is made by Goldstream Investment Limited (the “Company” together with its subsidiaries the “Group”) on a voluntary basis to inform the shareholders of the Company and potential investors of the latest development in the Company’s business.THE STRATEGIC COOPERATION MEMORANDUM The Board is pleased to announce that in view of among other things the strong relationship of the Group with Hony Capital Group and the potential strategic synergies with SenseTime Group Limited (“SenseTime”) a company incorporated in Hong Kong with limited liability on 4 June 2024 the Company and SenseTime entered into a non-binding strategic cooperation memorandum (the “Strategic Cooperation Memorandum”).Pursuant to the Strategic Cooperation Memorandum the Company and SenseTime (and/or their respective affiliates) will explore potential cooperation in areas including:- 1. AI+Finance Collaboration: The Company will make use of its resources and experience in the financial field to jointly develop AI-driven financial products and services with SenseTime and carry out scenario co-construction in the areas of investment research and investment decision making.– 1 –SenseTime will provide advanced AI technical support to empower the Company in investment research and decision-making. SenseTime will use its large model capabilities to help transform research information production and interaction approaches in face of massive information. SenseTime will also help the Company to enhance investment research support by providing deep analysis of information from multiple sources and deliver personalized information to the users. 2. Empowering Ecosystem-enterprises The Company will provide support to SenseTime and its AI ecosystem-enterprises to facilitate the rapid development of their technology and business including but not limited to financial advice on business expansion advisory on overseas capital market and investment financing investment management products and asset allocation services etc.SenseTime will provide AI computing power and technical support for the Company and its ecosystem-enterprises and support the Company and its ecosystem-enterprises in elevating the Company's capabilities and applications of AI technology. 3. Cooperation on overseas AI Opportunities: The Company and SenseTime will co-operate to develop AI+Financial solutions adapted to the needs of the international market and jointly explore overseas markets.The Company will provide resources and channels for international market expansion while SenseTime will provide technical and product support.REASONS FOR AND BENEFITS OF THE STRATEGIC COOPERATION The Group is principally engaged in the provision of investment management business and the strategic direct investment business. The Company believes the Strategic Cooperation Memorandum is a strong testimony of the Company’s business capability and potential. The Directors are of the view that the possible cooperation between the Group and SenseTime contemplated under the Strategic Cooperation Memorandum (the “Strategic Cooperation”) if materialised represents an opportunity for the Group to further enhance its presence and investment in the artificial intelligence space as well as to empower the portfolio and ecosystem enterprises of the Group with innovative solutions and frontier technologies and the entering into of the Strategic Cooperation Memorandum is in the interests of the Company and its shareholders as a whole.– 2 –INFORMATION OF SENSETIME SenseTime Group Limited is wholly owned by SenseTime Group Inc a world-leading AI software company incorporated in the Cayman Islands with limited liability and the issued shares of which are listed on the Main Board of the Hong Kong Stock Exchange (Stock Code: 0020). 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.To the Directors’ knowledge information and belief and having made all reasonable enquiries SenseTime and its ultimate beneficial owners are independent third parties and not connected with the Company or any of its connected persons (as defined in the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”)).GENERAL The Board wishes to emphasise that no formal or legally binding agreement in relation to the Strategic Cooperation has been entered into between the Company and SenseTime (and/or its respective affiliates) as at the date of this announcement. As such the Strategic Cooperation may or may not be materialised. In the event that the Company enters into any formal agreement in relation to the Strategic Cooperation further announcement(s) will be made by the Company in accordance with the Listing Rules as and when appropriate.Shareholders and potential investors of the Company are advised to exercise caution when dealing in the securities of the Company.By Order of the Board Goldstream Investment Limited Mr. Zhao John Huan Chairman Hong Kong 5 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.–3–