China National Building Material Company Limited is an investment holding company that, through its subsidiaries, is mainly engaged in the cement, lightweight building materials, glass fiber, fiberglass reinforced plastic (FRP) products and engineering services businesses. Under the lightweight building materials segment, the Company produces and sells gypsum boards and related products, such as acoustical ceiling panels and lightweight metal frames. Under the glass fiber and FRP products segment, it products include glass fiber mats and rotor blades. Under the engineering services segment, it provides design and engineering, procurement and construction (EPC) services. Its products include float glass production lines and new suspension preheater dry process (NSP) cement production lines. Under the cement segment, the Company manufactures cement.