CaCO3, also called carbonic acid or calcium salt is an odorless, tasteless powder or crystal that occurs in nature, which is widely used in many industries. Hao Thinh Co., LTD provides high-quality stearic acid-coated CaCO3 powder with the most competitive price. Our powder is quarrying at Nghe An and Yen Bai, two of the biggest stone quarry in Viet Nam.