We supply and export various grades of Calcium Carbonate, such as Paint/ rubber/ food/ medical/ toothpaste grade, and we are very confident our premium quality can strictly meet your requirement, should you be intested in it, pls feel free to contact us: hosmail( a) sina.com Food grade Calcium Carbonate98% min Medical grade Calcium Carbonate 98.5% min Industrial grade Calicium Carbonate 98% min Should you be interested in any of our chemicals, pls feel free to enquire us, we are ready to quote our best price for you at the first time. Our conatact way: hosmail( a) sina.com