Weifang Ensign Industry Co., Ltd, established in July 1997, is an enterprise of mainly taking starch-based raw materials to professionally produce Citric Acid and Edible Alcohol. After a decade of development, the company has expanded itself constantly, enhanced its economic strength significantly and has become the largest manufacturer of citric acid in the world. The company has passed ISO9001:2000 quality management system, ISO14001:2004 environmental management system, OHSAS18001:1999 occupational health & safety management system, HACCP and GMP certification etc.