George Stergiopoulos

Viohalco SA is a holding company that engages in the production, processing, and trading of steel, copper, and aluminium. The firm also engages in real estate development. It operates through the following activities: Steel Sector, Copper Sector, Aluminium Sector, and Real Estate Development Sector. The Steel Sector involves the production of long and flat steel products, pipes, and hollow structural sections, as well as downstream products. The Copper Sector produces copper and brass tubes, copper titanium-zinc rolled products, copper and brass extruded products, cables, conductors, enameled wires, and rubber and plastic compounds. The Aluminium Sector engages in the production of aluminium coils, strips, sheets and foil, lithography sheets, as well as architectural and industrial aluminium profiles. The Real Estate Development Sector develops commercial and industrial properties. The company was founded in 1937 and is headquartered in Athens, Greece.

Hellenic Cables Holdings SA engages in the design and manufacture of power cables and insulated copper wires. Its products include submarine cables, submarine polyethylene pipes, medium voltage cables, low voltage cables, copper telecommunications and fiber-optic cables, data transmission cables, enameled wires, and conductors and wires. The company was founded in 1950 and is headquartered in Maroussi, Greece.

Sidenor Holdings SA engages in the manufacture and sale of industrial materials. Its products include merchant bars, quarto plates, wire rod, boron flats, mining profile, steel balls for grinding, pipes and tube, wire, welding, hard aggregates and building materials, ploughshare blades, and railway connections. The company was founded in 1962 and is headquartered in Athens, Greece.