China National Building Material Co Ltd operates in the Cement, hydraulic sector. China National Building Material Company Limited is an investment holding company. The Company operates in five segments: Lightweight building materials, which is engaged in production and sale of lightweight building materials; Cement, which is engaged in production and sale of cement; Engineering services, which is engaged in provision of engineering services to glass and cement manufacturers and equipment procurement; Glass fiber and composite materials, which is engaged in production and sale of glass fiber and composite materials, and Others, which is engaged in merchandise trading business and others. On January 27, 2010, China Triumph International Engineering Company Limited, subsidiary of the Company acquired 18% additional interests in CTIEC Shenzhen Scieno-tech Engineering Company Limited. On December 16, 2010, China Composites Group Corporation Limited, subsidiary of the Company acquired additional 6% interests in Zhongfu Shenying Carbon Fiber Company Limited. In our complete report available for purchase the company is compared to: CSR Corporation Limited, Sany Heavy Industry Co Ltd and Mitsui Engineering & Shipbuilding Company Limited.