China National Building Materials Group Corporation is the full name of CNBM, which is one of the largest state-owned group in China. In 2013, the total turnover volume of CNBM exceeds US$41 billion dollars with a total staff of 180,000. CNBM is listed in the FORTUNE GLOBAL 500 Enterprises! CNBM International Corporation, as one leading subsidiary of CNBM Group, specializes in concrete admixtures.Our main exporting product as follows: 1. Lignosulphonate : sodium lignosulphonate ,calcium lignosulphonate ,Ferrochrome lignosulphonate ,Chrome free lignosulphonate . 2. sodium gluconate Industrial grade (SG-98% ,SG-99%) 3. Sodium Naphthalene Sulphonate Formaldehyde (SNF): 4. Polycarboxylate Superplasticizer