Chongqing Iron & Steel Company Limited released its Monthly Return for the period ended 31 March 2026, reporting no alterations to either authorised or issued share capital during the month.

Authorised / registered share capital • H shares: 538.13 million shares at RMB 1.00 par, equal to RMB 538.13 million. • A shares: 8.31 billion shares at RMB 1.00 par, equal to RMB 8.31 billion. Total authorised capital remained at RMB 8.85 billion.

Issued shares and treasury position • H shares listed in Hong Kong: 538.13 million issued; zero held as treasury shares. • A shares listed in Shanghai: 8.31 billion issued; zero held as treasury shares. No issuances, cancellations, conversions or repurchases were recorded for either class in March.

Public float compliance The company confirmed that its H-share class met the Main Board Rule 13.32D(1) minimum public-float threshold of 5 percent as of 31 March 2026.

Absence of equity-linked instruments The filing shows no outstanding or newly granted share options, warrants, convertible securities, depositary receipts, or other arrangements to issue shares.

Administrative note The return was submitted to Hong Kong Exchanges and Clearing Limited on 1 April 2026 and signed by Board Secretary Kuang Yunlong.