Hunan Huaxi investment Co.,ltd is a manufacture and trade company which is producing specially crude Calcium Carbonate. We own abundant natural minerals sources. The mineral reserve has 20,000,000 tons, and we also have large-scale producing process factory which is mainly dealing with producing and processing the natural Ultrafine Heavy Calcium Carbonate. Our own our brand: 'HUABI'. We use natural calcspar as the material of products, through physical process, then do it. The specification as follows: Brightness: >94%, CaCO3>98.5%, H2O: <0.2%. The products under the specification: D97, dim:2-45um are up to the international standard. It`s a new abio-functionality filling, widely used for dope, paint, plastic, rubber, paper, etc industry as the functionality filling. They use it to reduce the producing cost, develop the product`s quality, and improve the product`s performance.