We are Hebei Meida Chemicals Co., LTD. Kindly please refer to our chemical product list as follows: Iron oxide pigment chrome oxide green titanium dioxide zinc oxide carbon black zinc sulfate copper sulfate Caustic Soda STPP SHMP LABSA SLES boric acid Adipic Acid glacial acetic acid. formic acid oxalic acid Contacts: bertinachemicalATgmail.com bertinachemicalAThotmail.com