Dingtian Industry is a world famous manufacturer of citric acid and the largest manufacturer of Special Grade Alcohol in China. Ensign Industry is awarded "Citric Acid Characteristic Industrial Base Core Enterprise of China" by China Light Industry Federation and China Fermentation Industry Association, and awarded "Enterprise Credit Assessment AAA Level Credit Enterprise" by China Chamber of Commerce of Metals Minerals & Chemicals Importers & Exporters. Ensign Industry is Vice Chairman of ...