Niche-Tech Semiconductor Materials Limited will convene its Annual General Meeting on 1 June 2026 at 2:00 p.m. in Hong Kong Science Park.

Key proposals to be tabled:

1. Financial Statements and Governance • Adoption of the audited consolidated financial statements for the year ended 31 December 2025 and the accompanying directors’ and auditors’ reports. • Re-election of Mr. Li Chiu Fan as Non-executive Director and Mr. Tai Chun Kit as Independent Non-executive Director. • Authorisation for the board to determine directors’ remuneration. • Re-appointment of Gary Cheng CPA Limited as independent auditors, with their fees set by the board.

2. Capital Management Mandates • General mandate to allot and issue new shares up to 20 % of the company’s issued share capital, with an additional extension equal to shares repurchased under the buy-back mandate. • Authority to repurchase shares on the market up to 10 % of issued share capital, with discretion to hold repurchased shares in treasury or cancel them.

3. Constitutional Update • Special resolution to adopt a fourth amended and restated memorandum and articles of association, consolidating amendments detailed in the 8 May 2026 circular.

Administrative details:

• Shareholders’ register will be closed from 27 May 2026 to 1 June 2026 (both dates inclusive). Transfers must be lodged by 4:30 p.m. on 26 May 2026 to qualify for meeting attendance and voting. • All AGM resolutions will be decided by poll.

Niche-Tech Semi’s board recommends shareholders review the circular issued on 8 May 2026 for full text of proposed amendments and voting arrangements.