香 港 交 易 及 結 算 所 有 限 公 司 及 香 港 聯 合 交 易 所 有 限 公 司 對 本 公 告 的 內 容 概 不 負 責，對其準確性或完整性亦不發表任何聲明，並明確表示，概不對因本公告全部 或任何部份內容而產生或因倚賴該等內容而引致的任何損失承擔任何責任。 Tiangong International Company Limited （於開曼群島註冊成立的有限公司） 天 工 國 際 有 限 公 司* （股份代號：826） 在雙方共同努力下，繼續深化合作，共同加速推進本集團的鋸切工具專用粉末高 速鋼材料（ M42、M51等 ）（ 以下簡稱「鋸切工具專用材料」）在鋸切工具產品領域應 用的研發、測試與運用，不斷建立行業優勢地位，實現技術升級與進口替代。 恒而達將以自有鋸切工具生產線為本集團新材料提供驗證測試場地和設備支援， 並基於其數十年的生產工藝經驗及終端使用者使用資料積累，從合金成分優化、 生產工藝改進、產品性能提升等維度為本集團提供持續技術支援，協助完善其材 料研發體系。 – 1 – 為支援本集團該項業務的快速發展，在本集團鋸切工具專用材料通過恒而達的驗 證測試後，恒而達同意在保障供應鏈平穩 ...

Core Viewpoint - The strategic cooperation agreement between Heng Er Da and Tiangong International aims to leverage both companies' strengths in technology innovation, industry chain collaboration, and market expansion, focusing on the development and application of powder high-speed steel materials for cutting tools [1][3]. Group 1: Strategic Cooperation - Heng Er Da and Tiangong International signed a strategic cooperation framework agreement on July 16, emphasizing long-term collaboration and mutual benefits [1]. - The agreement includes the joint development of powder high-speed steel materials, with a commitment from Heng Er Da to switch its main supplier to Tiangong International after successful testing [1]. - From 2026, Heng Er Da plans to purchase no less than 100 tons of cutting tool materials annually from Tiangong International over five years, totaling at least 600 tons [1]. Group 2: Equipment and Technology Development - Tiangong International plans to procure 40 to 50 cutting equipment units from Heng Er Da for upgrading its production lines [2]. - Heng Er Da will prioritize the use of Tiangong International's cutting tools, provided they meet production standards and competitive pricing [2]. - Both companies will collaborate on developing high-precision rolling function components and establish a procurement channel for these tools after successful verification [2]. Group 3: Industry Positioning and Future Plans - The agreement is expected to enhance Heng Er Da's business structure by broadening its product range and accelerating the development of rolling function components [3]. - Heng Er Da's chairman emphasized the importance of collaboration for achieving significant breakthroughs in domestic production capabilities [3]. - Tiangong International is recognized as a leading manufacturer of high-speed steel and cutting tools, with a strong global market presence [3][4].