MEGAIN Holding (Cayman) Co., Ltd. announced that its latest corporate documents—comprising the circular dated 12 June 2026, the Notice of Extraordinary General Meeting (EGM) and the accompanying proxy form—have been uploaded to the company’s website (www.megaincayman.com) and to HKEXnews (www.hkexnews.hk).

Key points

1. Availability of Documents • Both English and Chinese versions of the circular, EGM notice and proxy form (collectively “Current Corporate Communications”) are accessible online with immediate effect. • Shareholders who previously elected to receive hard-copy materials will find printed versions enclosed with the notification letter.

2. Options for Receiving Future Communications • MEGAIN strongly encourages shareholders to rely on the web-based versions of all current and future corporate communications to enhance efficiency and reduce environmental impact. • Shareholders preferring hard-copy documents can complete and return the enclosed reply form to Tricor Investor Services Limited, the Hong Kong branch share registrar, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong, using the prepaid mailing label, or email 6939-ecom@vistra.com.

3. Email Address Registration • Registered shareholders are responsible for providing a valid email address. • Without a functional email on file, shareholders will receive only printed notices of publication and actionable corporate communications until an email address is supplied.

4. Contact Information • Enquiries should be directed to Tricor Investor Services Limited via telephone at (852) 2980 1333, Monday to Friday, 9:00 a.m.–6:00 p.m. (excluding public holidays).

The board, chaired by Cheng Hsien-Wei, emphasises that printed copies of the Current Corporate Communications will be dispatched free of charge upon request.