China National Building Material Company Limited (CNBM) disclosed that Mr. Zhou Yuxian resigned as Board Chairman, Executive Director and Legal Representative, effective 27 August 2026. His departure also ends his roles as Chairman of the Strategic Steering Committee, Chairman of the Nomination Committee, member of the Remuneration and Performance Appraisal Committee, Chairman of the Environmental, Social and Governance Committee and Authorised Representative under HKEX Listing Rule 3.05.

The Board reported no disagreements with Mr. Zhou and confirmed no other matters require shareholder attention. To ensure operational continuity, the Board has empowered Executive Director Mr. Wei Rushan to exercise all powers of the Board Chairman, perform the duties of Legal Representative, and assume Mr. Zhou’s former committee and Authorised Representative positions. His interim mandate begins immediately and will continue until a new Chairman is elected; preparations for that election are under way.

Board composition now includes: • Executive Directors: Wei Rushan, Wang Bing, Miao Xiaoling • Non-Executive Directors: Wang Yumeng, Chen Shaolong • Independent Non-Executive Directors: Sun Yanjun, Liu Jianwen, Zhou Fangsheng, Li Jun, Xia Xue

The Board expressed gratitude for Mr. Zhou’s contributions since his appointment as Chairman in November 2021, citing his role in advancing the company’s high-quality development.