China Non Metallic Materials Nanjing Mining Engineering Co., Ltd. is a subsidiary of China National Building Materials Group Co., Ltd., with a registered capital of 100 million yuan. It has a first-class qualification for general contracting of mining engineering construction and a first-class qualification for commercial blasting operation units. It is a specialized comprehensive construction enterprise engaged in mining, shaft and roadway, and mechanical and electrical equipment installation. It has the ability to undertake general contracting for mining ...