Tot Trong Nguyen

Vietnam National Coal & Mineral Industries Holding Corp. Ltd. engages in exploring, investing, exploiting, processing, and selling of coal and minerals products. Its other activities include production and sale of industrial explosive materials and ammonium nitrate; investment, construction, and manufacture of electricity, and other activities related to main businesses. The company was founded on October 10, 1994 and is headquartered in Ha Noi, Vietnam.

Vinacomin Transportation & Miner Commuting Service JSC engages in the provision of mining transportation, public passenger transportation, and transport equipment repair services. The company was founded on January 1, 1987 and is headquartered in Cam Pha, Vietnam.

Vinacomin-Maokhe Mechanical JSC engages in manufacture of mechanical product. Its products include spare parts of mining, metal structures, transportation equipment, screening coal, repair of machinery and equipment. The company was founded on February 27, 1982 and is headquartered in Quang Ninh, Vietnam.