CHINA BUILDING MATERIALS CO., LTD. (“CNBM”) WILL HOLD AN H-SHARE CLASS SHAREHOLDER MEETING IN BEIJING ON APRIL 29, 2024 TO CONSIDER A SPECIAL RESOLUTION AUTHORIZING THE BOARD TO REPURCHASE NOT MORE THAN 10% OF THE ISSUED H SHARES WITHIN A SPECIFIED PERIOD. The repurchase plan will be carried out according to market conditions and the needs of the company and involves the decision on the repurchase price, number, etc. In addition, the Board of Directors will be responsible for conducting relevant foreign exchange audits and changes in registration procedures, as well as dealing with share write-offs and reductions in registered capital of the company. The results of the shareholders' meeting voting will be announced after the meeting. In order to attend the shareholders' meeting and vote, the registration of shares will be suspended from 24 to 29 April. Shareholders may appoint agents to attend meetings and vote, and documents must be submitted at least 24 hours prior to the meeting.

CHINA BUILDING MATERIALS CO., LTD. (“CNBM”) WILL HOLD AN H-SHARE CLASS SHAREHOLDER MEETING IN BEIJING ON APRIL 29, 2024 TO CONSIDER A SPECIAL RESOLUTION AUTHORIZING THE BOARD TO REPURCHASE NOT MORE THAN 10% OF THE ISSUED H SHARES WITHIN A SPECIFIED PERIOD. The repurchase plan will be carried out according to market conditions and the needs of the company and involves the decision on the repurchase price, number, etc. In addition, the Board of Directors will be responsible for conducting relevant foreign exchange audits and changes in registration procedures, as well as dealing with share write-offs and reductions in registered capital of the company. The results of the shareholders' meeting voting will be announced after the meeting. In order to attend the shareholders' meeting and vote, the registration of shares will be suspended from 24 to 29 April. Shareholders may appoint agents to attend meetings and vote, and documents must be submitted at least 24 hours prior to the meeting.