Sidenor Holdings S.A., together with its subsidiaries, produces and sells steel construction and industrial products, and steel pipes. It operates through Steel Construction and Industrial Products, and Steel Pipe Products segments. The company offers SD integrated concrete reinforcing system, including SD concrete reinforcing steel, such as SD bars and coils, and SD cut-to-length rebars; SD reinforcing mesh, including SD stirrup mesh, SIDEFIT special mesh, and SD wire mesh; SIDEFOR prefabricated stirrup cages; INOMIX steel fibers; and lattice girders. It also manufactures merchant bars comprising hot-rolled square bars, flats hot-rolled bars of rectangular cross section, rounds hot-rolled bars of circular cross-section, equal angle hot-rolled bars, IPE beams, and UPN channels. In addition, the company offers wire rods; hollow sections, scaffolding pipes, galvanized construction pipes, and construction pipes for other purposes; hot rolled steel plates; and special steels. Further, it provides galvanized wire, wire mesh, double twist hexagonal mesh, welding electrodes and wires, hard aggregates and building materials, steel balls, THN mining profiles, railway connections, ploughshare blades, and boron steel flats bars, as well as is involved in the steel by-product recycling activities. Sidenor Holdings S.A. operates in Greece and the United States, as well as in the broader region of the Balkans and Europe. The company was formerly known as Sidenor Steel Products Manufacturing Company S.A. and changed its name to Sidenor Holdings S.A. in July 2014. The company was founded in 1962 and is based in Athens, Greece. Sidenor Holdings S.A. operates as a subsidiary of Viohalco S.A.