Shanghai FourSemi Semiconductor Co., Ltd. (“FourSemi”) will convene its 2025 annual general meeting on 5 June 2026 at 10:00 a.m. in Shanghai. Shareholders of record as of the same date are eligible to vote; the H-share register will be closed from 2 to 5 June 2026.

Key resolutions to be tabled include:

• 2025 Profit Distribution – The board confirmed that profit and cash-flow conditions do not support a dividend; therefore, no final dividend is proposed for FY2025.

• Directors’ Remuneration – Executive and non-executive directors will continue to receive compensation aligned with company policy, while each independent non-executive director is set to receive an annual fee of HK$50,000 for 2026. Remuneration already disbursed for 2025 will be ratified.

• Auditor Re-appointment – Ernst & Young is nominated to continue as external auditor for 2026 with an audit fee budgeted at RMB2.00 – 2.10 million.

• Share Repurchase Mandate – The board seeks authority to repurchase up to 10% of FourSemi’s issued H shares (maximum 11.09 million shares based on the current 110.89 million H shares outstanding). The mandate would remain effective until the next AGM, a 12-month lapse, or earlier revocation.

• General Issuance Mandate – Directors also request approval to issue, sell or transfer treasury shares of up to 20% of the existing share capital (up to 22.40 million shares), with corresponding authority to amend the Articles of Association to reflect any resultant capital changes.

• 2025 Board and INED Reports – Shareholders will review the board’s annual work report and the duty report of the independent non-executive directors.

Proxy forms must be lodged no later than 10:00 a.m. on 4 June 2026. The 2025 annual report was published on 28 April 2026 and is available on both the Hong Kong Stock Exchange and company websites.