Dear Customer, We supply GROUND CALCIUM CARBONATE Powder. Commodity : Ultra-fine GCC, fine GCC, Stearic Acid Coated GCC ( CGCC ) -Raw material: Limestone ( or Marble ) VIETNAM origin -CERTIFICATE: ISO 9001-2008 Specification: -Whiteness: 98% min -Brightness: 97% min -Moisture: 0.2% max -PH Value: 8-9 -DOP Oil Absorption: 24g/cm3 Specific Gravity: available - Application: be used as a filler, additives for many industries: paper, paint, plastics, rubber, cosmetics...etc