Dear Sir/Madam: Opta Minerals Inc is a vertically integrated producer, manufacturer, distributor and recycler of industrial minerals, silica-free loose abrasives, roofing shingle granules, specialty sands and related products for use primarily in the foundry, steel, marine/bridge cleaning and water filtration industries in North American market. We ae interested in your product of Calcium Aluminate in a quantity of 20 MT/month, which need to satisfy the following specifications: 12 x 80 mes 51% Min. Al2O3 Please quote your best FOB CHINA price (please specify your nearest port) and lead time with the details of your product specifications We look forward to hearing from you soon. Sincerely