Ding He Mining Holdings Ltd is a Hong Kong-based investment holding company. The company principally engaged in the trading of magnesium ingots. It operates through three segments. Mining of Dolomite and Manufacture of Magnesium Ingots segment is engaged in the trading of magnesium ingots in South America and Malaysia. Its main products include refining magnesium crowns. Exploration for Iron Ore, Coal and Manganese segment is engaged in the exploration of iron ore, coal, and manganese in Indonesia. Extraction and Bottling of Mineral Water segment are engaged in the extraction, bottling, and sales of mineral water in China. Majority of the revenue comes from the mining of dolomite and manufacture of magnesium ingots segment and external customers.