Dalian Bio-Chem Co., Ltd. is specialized in producing biocides and preservatives for industrial and household applications. As the leading supplier with the newest and largest production unit in China, it is supplying a broad range of products as follows: 1. Isothiazolinones-CMIT/MIT, MIT, OIT, DCOIT, BIT; 2.Carbamate-IPBC; 3.Pyrithiones- ZPT, CPT,SPT.