Biochemical Gansu limited liability company (hereinafter referred to as biochemical), located in the ancient Silk Road, in the middle of Hexi Corridor in Linze County, pleasant climate and convenient transportation, is a large enterprise in bio chemical industry and deep processing of corn as a whole. Biochemical basis of local rich high quality corn raw material advantages, relying on advanced bio fermentation and modern chemical separation technology, using high technology to transform traditional industries, vigorously develop the agricultural products processing industry, has formed a set of scientific research, processing, import and export trade as one of the series of management pattern and an annual output of 20000 tons, a water citric acid anhydrous citric acid 5000 tons, 40000 tons of maize starch, waxy corn starch, modified starch, 3000 tons of refined corn oil 5000 tons, 1000 tons of production scale. Biochemical strong technical force, the economic and technical indicators in the domestic and international forefront of the industry, and through the ISO9002 international quality system certification, KOSHER certification, and through the national certification of environmental protection. Leading products for the citric acid series products, including a water citric acid, anhydrous citric acid, sodium citrate, potassium citrate and citric acid, calcium, etc.. The implementation of quality standards for the British Pharmacopoeia BP93, BP98 version, the United States Pharmacopoeia USP23, USP24 version. Products more than 90% exports, exported to Europe and America, the Middle East, Southeast Asia and other more than and 30 countries and regions, high quality, wide range of application, much domestic and international customers, enjoy a high reputation in the international market. In the development plan in the new century, the company will be white business, meticulous service for the purpose, focus on the development of deep processing of citric acid based fine chemical products in the fermentation industry to open up new horizons.