China National Building Material Company Limited (CNBM) filed its Monthly Return with Hong Kong Exchanges and Clearing for the period ended 31 May 2026, confirming no changes in either authorised or issued share capital during the month.

Authorised / Registered Capital • Total authorised share capital remained at RMB 7.59 billion, split between: – H shares: 3.72 billion shares at a par value of RMB 1 each. – Domestic shares: 3.88 billion shares at a par value of RMB 1 each.

Issued Shares and Public Float • Issued H shares: 3.72 billion; issued domestic shares: 3.88 billion. • No treasury shares were held, issued, or cancelled in May. • CNBM confirmed compliance with the Main Board Rule 13.32B public-float requirement of at least 25% for its H-share class.

Capital Instruments • The company reported no outstanding share options, warrants, convertible securities, or other agreements that could lead to additional share issuance. • No Hong Kong Depositary Receipts were outstanding.

The return, submitted on 1 June 2026 by Joint Company Secretary Mr Chung Ming Fai, indicates a stable capital structure with full adherence to Hong Kong listing regulations and no dilution events during the reporting month.