Beijing New Building Material(Group) Co., Ltd. (BNBM Group)is a subsidiary of China National Building Material Group Corporation Ltd. (CNBM), a state - owned enterprise directly administered by state - owned assets supervision and Administration Commission of State Council. Established by the national government in 1979 under the direct the approval and guidance of Deng Xiaoping, BNBM Group represents China's largest domestic manufacturing base for new building materials.