Established in 1974, SEOAN CHEMTEC has been the leading producer and exporter of the electro-plating and electroless-plating chemicals including Copper Cyanide (CuCN), imitation gold, brass salt, Zinc Cyanide (Zn(CN)₂), Potassium Copper Cyanide (K₂Cu(CN)₃), Copper Oxide (CuO), Copper Sulfate Pentahydrate-Ultra Pure Grade (CuSO₄⋅5H₂O), etc. SEOAN CHEMTEC has enjoyed the best reputation from the world-wide customers, in points of excellent quality, timely delivery and perfect service. In addition, we are trying our best to develop our technology for diversifying our fine chemical products.