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OFZ

OFZ is a Central European diversified manufacturer of ferroalloys with a history dating back to 1952.

Last updated September 29, 2026

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Overview

OFZ is a Slovak industrial company and diversified manufacturer of ferroalloys in Central Europe, with a corporate history dating back to 1952. Its core business is the production of a wide range of silicon and manganese ferroalloys, cored wires and by-products generated during ferroalloy production. These materials are essential inputs for steelmaking and foundry operations, where they are used for alloying, deoxidation and property control. Beyond its Slovak base, OFZ has expanded through acquisitions and mergers. In early 2016 it acquired a manufacturing plant in Novokuznetsk, Russia, now known as OFZ Novokuznetsk, which focuses on cored wires for the steel industry, particularly CaSi cored wire and welding wires. In 2015 OFZ, a.s. merged with DS Martin, a.s., a Slovak company founded in 1997 as a successor to "Závod Motory ZETOR", which manufactures and deals in diesel engines, spare parts and cooperation work. The company presents itself as a diversified Central European ferroalloy producer and maintains an official web presence in Slovak, English and Russian, reflecting its regional and export orientation. Its product portfolio spans ferroalloys, cored wires and by-products, serving steel and related industrial customers.

History

OFZ traces its history back to 1952, when its predecessor operations were established in what is now Slovakia. Over the following decades the company developed into a producer of ferroalloys, supplying silicon and manganese alloys and related materials to steelmakers and foundries. By the 2010s OFZ, a.s. had become a diversified Central European ferroalloy manufacturer. In 2015 the company merged with DS Martin, a.s., a Slovak engineering firm founded in 1997 as the successor to "Závod Motory ZETOR". DS Martin manufactures and deals in diesel engines, spare parts and cooperation work, adding an engine and mechanical engineering dimension to OFZ's portfolio. In early 2016 OFZ, a.s. acquired a manufacturing plant in Novokuznetsk, Russia, which became OFZ Novokuznetsk. That plant focuses on cored wires for the steel industry, particularly CaSi cored wire and welding wires, extending OFZ's product range and geographic reach into the Russian market. Today OFZ presents itself as the diversified manufacturer of ferroalloys in Central Europe, producing a wide range of silicon and manganese ferroalloys, cored wires and by-products from ferroalloy production. Its official website provides information in Slovak, English and Russian, reflecting its regional and export-oriented business.

  • 2016

    OFZ, a.s. acquired a cored-wire manufacturing plant in Novokuznetsk, Russia (OFZ Novokuznetsk).

  • 2015

    OFZ, a.s. merged with DS Martin, a.s.

  • 1997

    DS Martin, a.s. founded as successor to "Závod Motory ZETOR".

  • 1952

    History of OFZ's predecessor operations dates back to 1952.

Products and positioning

Diversified Central European manufacturer of ferroalloys and related steel-industry products.

  • Silicon ferroalloys

  • Manganese ferroalloys

  • Cored wires

  • CaSi cored wire

  • Welding wires

  • Ferroalloy by-products

  • Diesel engines

  • Spare parts

Sources2 sources

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