Dear Sir,Ammonium Bicarbonate 99.20% Min.Food Grade is produced by own factory in China,its output is 8,000MT yearly,22Mt/20'fcl(Packing In 25kg net),We are ISO9001:2000 Certified company ( its number is 1300/20018290 dd Aug.,10,2001),42-002-2105 is Duns number for our company,you can contact your local Dun & Bradstreet for our company's Stand and Credit.We are adopting most advanced technology and production equipments so that our production cost is the lowest ,its output yearly is 18000MT,we assure to provide qualified goods with most reasoanble and competitive price.Besides we can supply various chemicals such as Choline chloride,Dicalcium Phosphate,Citricv Acid, Lithopone,Mannitol, Sodium Benzoate,STPP Tech/Food Grade,Zinc Bacitracin ,Ammonium Persulphate,Potassium Bromate ,ISONICOTINIC ACID,and etc at reasonable price,if you need others,please feel free to contact us or visit our web:www.tradezone.com/tradesites/wyang.html Best Rgds/Watson Yang