Strong Petrochemical Holdings Limited (STRONG PETRO) issued a shareholder notice dated 23 June 2026 confirming that the English and Chinese versions of its Interim Report 2025 are now available on both the company website (www.strongpetrochem.com) and Hong Kong Exchanges and Clearing’s HKEXnews portal (www.hkexnews.hk).

Registered shareholders who previously opted for hard-copy communications will receive the printed interim report by mail. Others may request a printed version free of charge by completing and returning the enclosed reply form to the company’s Hong Kong branch share registrar, Tricor Investor Services Limited, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong, or by emailing is-ecom@vistra.com. A prepaid mailing label is provided for local postal returns.

The notice reminds shareholders that maintaining a functional email address is their responsibility. Those who have not supplied or need to update an email address are encouraged to do so via the same reply form. Until a valid address is on file, related publication notices and actionable corporate communications will be sent only in printed form.

Enquiries can be directed to Tricor’s hotline on (852) 2980 1333, Monday to Friday, 9:00 a.m. to 6:00 p.m. (excluding public holidays).