Haicheng Sanyan Mining Co.,Ltd.,occupies the land of 160,000m2,and has the modernized factory with 38,000m2 building area. The Company built a 80 thousand KVA primary transformer station and 30 sets of 5000KVA electric fused magnesia furnaces, with 200 thousand tons electric fused magnesia production capacity each year. Four modern tunnel kilns with 120m long, with burned bricks annual capacity of 100 thousand tons. The Company also has complete auxiliary equipment, advanced dust-removing equipment which comes up to the environmental protection standards. The electric fused magnesia,burned magnesia bricks have high quality and stable performance, which gains the unanimous recognition of the users from domestic and abroad.