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Aluminium is obtained from alumina, a compound of aluminium and oxygen which is processed from bauxite (a mineral found in all tropical and sub-tropical countries).

Aluminium is produced by electrolytically separating oxygen from alumina ore. This is done in a reduction cell. The reduction cell is a large steel shell lined with carbon, Cryolite, aluminium fluoride and alumina (bath materials) which are placed in the cavity of the shell. This acts as the cathode in the electrolytic process. Above the cathode, 18 carbon anodes are attached by copper rods to the cell’s superstructure. The anodes are lowered into the cathode bath material.

An electrical current is passed from the anode to the cathode breaking the bond between the aluminium and the oxygen. Oxygen combines with the carbon anode to form carbon dioxide which is driven off as a gas. Molten aluminium collects at the bottom of the cell to be siphoned out as the final step in the process.

Production Process


VALCO imports various materials used in the aluminium making process. Our Carbon plant manufactures the necessary carbon anodes. Electricity and fuel are purchased in Ghana. All these come together in a facility that is technologically contemporary managed and staffed with dedicated professionals all of whom are Ghanaians.


  •  Aluminium Sows
  •  Billets
  •  Rolling Ingots 



  •  Internal – Aluworks Limited, Ghana
  •  External – ALCOA Europe and the ECOWAS Region, West Africa



Our Power Source is Akosombo Hydro-Electric Dam which was built by Government of Ghana, American and Italian Engineers. The Akosombo dam has a capacity of 912 MW with VALCO being allocated 245 MW



  •  Carbon Plant – Rodded assemblies for smelter and Green and Baked Anodes for export
  •  Cell Lines – Pre-bake design with maximum current of 160,000 amps, 500 electrolytic reduction cells installed and 1100 kg aluminium per cell per day.
  •  Cast House – Three (3) DC Casting complexes each having a charging and holding furnace and a casting pit. The Cast house also has a horizontal caster, ingot caster, sow casing station and homogenizing and sawing facilities. Has a promise conformance of 100% and ability to produce and deliver to customers on short notice.
  •  Shipping – We have a private wharf accepting vessels up to 660 feet long for import and export of bulk and containerized materials.



  • ALCOA Netherlands
  • Reynolds Netherlands and Germany
  • Pechiney France
  • Spanish Extrusion Plants


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Office Location

Volta Aluminium Company Limited (VALCO)
Heavy Industrial Area,Tema, Ghana
Phone: +233-302208787