Our is global rich chemicals Co., ltd, located in hongkong, specialized in many chemicals products, pls check the list below:Soda ash light/denseFerrous sulphateFerrous carbonateAmmonium bicarbonateCitric acidSodium sulphateZinc sulphateManganese sulphateMagnesium sulphateMagnesium ingotCopper sulphateSodium glocunateSodium tripolyphosphateThey are all superior quality with best price, welcome all customer to contact me if you are intrested in our products! We hope we will enter into business relationship with you and your kind company.