Foundde in 1989, situated in lin'an City to the west of Hangzhou City, Hangzhou Lin'an Jinlong Chemical Co., Ltd. Specializes in R&D, production and sales of series products of tartaric acid and its salts, such as l(+)Tartaric acid, D(-)Tartaric acid, DL-tartaric acid, natural grade L(+)potassium sodium tartrate, Potassium sodium tartrate, potassium hydrogen tartrate(Cream of Tartar), Potassium antimony tartrate, Potassium tartrate and sodium tartrate etc, . The annual production capacity is 10, 000 tons.

Our Company actively cooperates with many institutions of higher learning including Zhejiang University, Sichuan University and Zhejiang Gongshang University. By leveraging on their strong capacity in technical research and development and our rich experience in production, production processes and equipment are continuously improved and detection means become more sophisticated, thus enabling products to meet many domestic and international standards. The Company passed ISO9001: 2000 international quality management system certification in 2001 and drafted and finalized national standard Food Additive DL-Tartaric Acid in 2008 as the main drafting unit and participated in drafting national standard Food Additive L(+)-Tartaric Acid, "Linhua"brand tartaric acid series products made by the Compant enjoy wider recognition in China.