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Hanzhong TRG Biotech Co.,Ltd., specializing in the production of various kinds of plant extracts. It was established in 2006. The company adopts advanced production line, mature production technology, perfect test equipment, which are all conform to the requirements of GMP and conform with ISO 9001:2000 guidelines. Series product about tannic acid and gallic acid is our company's core flagship product ,its production capacity is 3000 tons.Besides,it has a scientific research team with the high ability to research new products.It also own a strict and scientific quality management system, able to research and develop new products independently. It is an export-oriented enterprises master the core technology.