USAS Building System (Shanghai) Co., Ltd. (H-share abbreviation: USAS Building) submitted its Monthly Return for Equity Issuer to Hong Kong Exchanges and Clearing Limited on 7 July 2026, covering the month ended 30 June 2026.

Issued Share Capital • Total H shares in issue stood at 120.55 million, unchanged from the previous month. • Par value per H share is RMB 1, bringing issued share capital to RMB 120.55 million. • The company held no treasury shares and reported no share repurchases, cancellations or allotments during the month.

Public Float Status • USAS Building confirmed compliance with the Main Board’s minimum public-float threshold of 25% of issued H shares as at 30 June 2026.

Capital Instruments • The filing shows no outstanding share options, warrants, convertible securities or other arrangements that could dilute existing shareholdings.

Administrative Details • The return was filed by Joint Company Secretary Ms Chen Yumin in accordance with Hong Kong Listing Rule requirements.