QOSC is also a major supplier of Refractory Bricks, Ramming Mass, Cast Rolls, Copper Mould Tubes, Shear Knife, Slide Case, Dummy Bar, Mould Lubricant, Graphite Electrodes, Conveyor Belts, Hoses, Hoisting Wire, V-Packing, Oil Seals, O-Rings, Filter Elements, Bearings, Fittings, Welding Electrodes, Non-Asbestos Materials, etc. to Qatar Steel. Besides, QOSC has principals who can supply material like Steel Pipes, Bevel Gears, Spiral Gears, Helical Gears and various types of Fabrications items.

In addition to this, QOSC is a supplier of material required on a day to day basis at Qatar Steel.