Dear sir, Please advise your best FOB price for supplying Soda Ash as per the following specifications : - Na2O3 (non-hydrate) : 99% Min. - NaCl : 0.5% Max. - Fe2O3 : 0.005% Max. as Fe - insoluble res2% Max. - Igloss : 1.0% Max. - apparent specific gravity : 1.0 Min. (heavysoda ash) , 1.0 Max. (light soda ash) Best regards,