USAS Building System (Shanghai) Co., Ltd. will convene its 2025 Annual General Meeting (AGM) on 15 May 2026 in Shanghai. Key resolutions and timetable details are as follows:

Dividend and Financial Results • A final cash dividend of RMB 0.37 per share (before tax), totalling approximately RMB 44.60 million—equal to 67.9% of 2025 audited attributable profit—will be put to a shareholder vote. • Entitlement record date for H-shareholders: 26 May 2026; share transfer books close 21–26 May 2026. Dividend payment is scheduled for 22 June 2026.

Operational & Financial Approvals • Shareholders will review and vote on the 2025 Board Report, Supervisors’ Report, audited consolidated statements and full Annual Report. • Remuneration for 2025 directors will be confirmed, and 2026 directors’ fees will be maintained at current levels (Executive Directors: RMB 2.40 million and RMB 0.70 million; Independent Non-executive Directors: RMB 50,000 each for two PRC INEDs and HK$120,000 for one Hong Kong INED; Non-executive Directors receive no fees). • BDO Limited is proposed for re-appointment as external auditor for 2026 with fees capped at RMB 1.30 million.

Capital Management Mandates • Share repurchase mandate: authority to buy back up to 10% of issued H shares (maximum 12.06 million shares) during the mandate period. • General issue mandate: authority to issue new H shares up to 20% of issued share capital (up to 24.11 million shares), with corresponding amendments to the Articles of Association.

Treasury & Financing Arrangements • The Company will guarantee credit facilities for wholly-owned subsidiary USAS Building System (Suzhou) Co., Ltd.: – Joint facility with CTBC Bank Shanghai Branch up to RMB 130 million (joint and several guarantee). – Separate facilities of up to RMB 10 million with Bank of China Suzhou YRD Integrated Demonstration Area Sub-branch and up to RMB 20 million with China Everbright Bank Shanghai Branch.

Corporate Governance Changes • Proposal to abolish the Supervisory Committee; its oversight functions will migrate to the Board’s Audit Committee. • Corresponding amendments to multiple articles of the Company’s Articles of Association are tabled for shareholder approval.

Key Dates • Shareholders’ register closure for AGM eligibility: 11–15 May 2026; record date 15 May 2026. • Proxy submission deadline: 10 a.m., 14 May 2026.

All resolutions, including the dividend, mandates, guarantees, and governance amendments, require shareholder approval at the 15 May 2026 AGM.