More and more chemicals are approved as food additives in food industry. We have more than 10 years of experience in the production of food grade chemicals, and have got the ISO9001: 2000 certificate, indicating the great reliability and safety of our chemical food additives. All of our products are tested according to the relevant product standards. For instance, our sodium metabisulfite is up to the national standard of GB/T1983-1998, the citric acid is up to the GB/T 8269-2006, and the sodium bicarbonate is up to the GB 1887-2007.