COSCO SHIPPING Development Co., Ltd. (COSCO SHIP DEV) disclosed that it repurchased an additional 1.00 million H-shares on 27 May 2026 via the Hong Kong Stock Exchange at HKD 0.9999–1.00 per share, spending HKD 0.99 million. The shares are earmarked for cancellation.

Issued-share base unchanged • H-shares: Outstanding H-share capital stood at 3.45 billion as of 27 May 2026, identical to the previous day’s level. • A-shares: Shanghai-listed A-share capital remained at 9.75 billion over the same period.

Progress of the H-share mandate • Since the current repurchase mandate was approved on 26 June 2025, the company has bought back 20.59 million H-shares for cancellation, equivalent to 0.60 % of the H-share count on the mandate date. • Authorised ceiling: 344.57 million H-shares; utilisation to date stands at 5.98 %. • A 30-day moratorium on new share issues or treasury-share sales runs until 26 June 2026.

A-share buybacks on the Shanghai Stock Exchange • On 27 May 2026, the company repurchased 0.50 million A-shares at RMB 2.52 each, for a total consideration of RMB 1.26 million. • Aggregate A-shares repurchased but not yet cancelled now total approximately 40.56 million, equal to 0.42 % of the current A-share base.

Cash outlay and average pricing • The latest H-share transaction was executed at an average HKD 0.9999 per share. • The corresponding A-share purchase was completed at RMB 2.52 per share.

All transactions were conducted on-market and authorised by the board, in compliance with Hong Kong Listing Rules and relevant domestic regulations, as confirmed by the company secretary in the filing.