First of all,thank you for your great support and deep love of Nanjing Zongheng bio-science and technology Co.,Ltd.& Lishui county Guanshan Fine Chemical Co.,Ltd.companies over many years! Since July 1st, 2012 our companies have been technologically cooperating with Jiangsu Shunfeng Chemicalindustry Dyeing and Finishing Co., Ltd. located in Taixing Economic Development Zone on manufacture and sales in such products as Benzoic Acid & Sodium Benzoate originally produced by us in an effort to ...