For us, we are a group factory professional in the ammonium bicarbonate food grade and tech grade etc, now our prouducts have past the iso9001:2000 certificate, and it have been exported to many coutnries, it is enjoyed a good reputation for its good quality And beside we are produce the sodium metabisulfite,calcium chloride,magnesium chloride etc We are want to do business with you ,any questions ,just feel free to let me know