Ammonium Nitrate Fuel Oil (ANFO) explosive is prepared by mixing Ammonium Nitrate with Fuel Oil in an aluminum or wooden tray with hand mixing and immediately charging into the bore holes in the adjacent quarry or mines for blasting. No packaging, storage, sale or transportation of ANFO is involved in the conventional manufacturing and using process. The licencees prepare ANFO for their own use and on the spot captive consumption for blasting purposes in metaliferous mines/quarries.