Yingkou Magnesite Mining Co. , Ltd，deeply engaged in the research and development, production and sales of magnesium materials, headquarter is located at Dashiqiao, Liaoning Province, China. Its parent company, Liaoning Shenghai Industrial Group, is a cross-industry industrial group, which has developed into a comprehensive enterprise group covering copper smelting, mining, refractory, chemicals and other fields. The group has a total production capacity of 2.71 million tons, of which Shenghai copper has 100,000 tons of copper smelting, 360,000 tons of sulfuric acid production capacity.