Suzhou Xushuguan Chemical Additive Co., Ltd was founded in 1979, which predecessor is Suzhou Xushuguan Chemical Additive Plant. It is an enterprise that specializes in producing metal rust inhibitor

with the history of over 50 years. Since 1987, started the production of dinonyl naphthalene sulfonate salts and quickly became one of major suppliers of DNN Sulfonate based rust inhibitors.