M4Bridge Tech Co., Limited that exports various of mineral chemicals for agriculture, animal feed, industry ect.We have factory in China.We can supply you these items and others with high quality.Item MgSO4.7H2O 0.1-1mm MgSO4.7H2O 0.2-3mm MgSO4.7H2O 1-4mm Synthetic Kieserite(MgSO4.H2O) Magnesium sulfate monohydrate Magnesium sulfate anhydrous Magnesium oxide 65-70//90% We exported magnesium oxide to Malaysia, American etc and magnesium sulfate feed/fertilizer grade to American (Oakland, Seattle and Dallas), Germany, Italy. We can supply you with the packing exactly as you request.