China National Building Material Co. Ltd. is an investment holding company, which through its subsidiaries engages in the production and sale of concrete products and other building materials and the provision of engineering services. The company is headquartered in Beijing, Beijing and currently employs 133,517 full-time employees. The company went IPO on 2006-03-23. The firm operates in five segments. Cement segment is engaged in the production and sale of cement. Concrete segment is engaged in the production and sale of concrete. New Materials segment is engaged in the production and sale of glass fiber, composite materials and lightweight building materials. Engineering Technology Services segment provides engineering services and equipment procurement for glass and cement manufacturers. Others segment is engaged in commodity trading business and others. The firm primarily operates its businesses in the domestic market.