Ioannis P. Stavropoulos

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.

Corinth Pipeworks Holdings SA engages in the manufacture and sale of steel pipes. It also offers final site delivery, storage, material and corrosion testing, pipe coating, pipe cutting, and technical consultancy and materials selection services. The company was founded in 1969 and is headquartered in Maroussi, Greece.

X. K. Tegopoulos Editions SA is a newspaper and magazine producer engaged in publishing and industrial printing. The company was founded in 1974 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.

Part of Viohalco SA/NV, KEM SA specializes in steel products. The private company is based in Chania, Greece.