Sichuan Unison Biochemical Co., Ltd. Is the biggest manufacturer of citric acid series products in western China. The export of citric acid of our company reaches 5,000 tons per year. Our company has powerful technology strength and experiences of manufacturing citric acid for more than 20 years. It is the first batch of appointed citric acid enterprises in China. Our company has obtained the ISO9001: 2000 international quality system certificate. The citric acid with the brand of "Qianniu" manufactured by Sichuan Unison Biochemical Co., Ltd. is manufactured according to the standards of BP93, bp98, E330.
