Winshine Science Company Limited (stock code: 00209) has uploaded its latest corporate communications to both the company website (www.winshine.com) and the Hong Kong Stock Exchange website (www.hkexnews.hk).

Key documents now available • Circular dated 12 March 2026 detailing: 1) A proposal to change the company’s English name and corresponding Chinese name (exact new names to be approved). 2) A proposal to refresh the mandate limit of the existing share-option scheme. 3) A notice convening a special general meeting (SGM).

• Form of proxy for the SGM.

Special General Meeting timetable • Date & time: 31 March 2026 (Tuesday) at 10:30 a.m. • Venue: As stated in the circular. • Shareholders who are unable to attend in person may submit the enclosed proxy form.

Shareholder communication arrangements • Shareholders are encouraged to register a functional email address with Tricor Investor Services Limited (17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong; email: is-ecom@vistra.com). • If no email is on record, the company will post printed notification letters of website publication and mail future actionable corporate communications in hard copy until an email address is provided. • A Change Request Form is enclosed, enabling shareholders to: – Request printed copies of the current circular and proxy form. – Elect the language (English, Chinese or both) and format (electronic or printed) for future communications. • Any change in communication preference requires at least seven days’ written notice to the share registrar.

Validity of printed-copy requests • Elections for printed versions will remain in force until 31 December 2027 unless revoked or superseded earlier.

Enquiry hotline • Shareholders may call (852) 2980 1333, Monday to Friday, 9:00 a.m.–6:00 p.m. (excluding Hong Kong public holidays), or email is-ecom@vistra.com for assistance.

The board is chaired by Ms. Wang Jingyu, who also serves as Chief Executive Officer.