Our company CEECMC based in Casablanca, Morocco is a supplier who offer the sale of fly ash of good quality and at competitive prices as well as in large quantities. Contact us for more details. Chemical Composition SiO2 54,77 % AL2O3 22,82 % Fe2O3 4,93 % CaO 6,37 % MgO 0,62 % SO2/SO3 0,11 % K2O 1,5 % Na2O 0,29 % TiO2 1,88 %.