Quality Minerals Public Company Limited. (The Company) manufactures a full range of high quality Ground Calcium Carbonate both coated and uncoated grades. Total production capacity is 180,000 tons per year. Other product lines include Calcium Masterbatch (Calpet), White Titanium Dioxide Masterbatch and Polyethylene Wax. Total production capacity for calcium compound is 18,000 tons per year. Please contact us for information on product grades and applications.