Good day ladies & gentlemen We are company in Saudi Arabia want to buy clinker in the following specifications:         Specifications                                                          Typical Chemical Analysis                                         Silicon dioxide                     (SiO2)     min      20.0        %       21.3 Aluminium oxide                     (Al2o3)    max     6.5     %      5.6 Ferric oxide                     (Fe2O3)  max     4.6        %       3.4 Calcium oxide                     (CaO)      min      64.0        %       65.7 Magnesium oxide                     (MgO)     max      3.0        %       2.4 Sulfur trioxide                     (SO3)      max      1.5        %       0.7 Loss on ignition                           max      1.0        %       0.7 Insoluble residue                           max      0.4        %       0.2 Total Alkalies                           max     0.8        %       0.6 Free lime                                           max      1.6        %       1.2 Tricalcium silicate                    (C3S)      min      55.0