Basic profile

OFZ, a. s. is the diversified manufacturer of ferroalloys in Central Europe. 

The history of company is dated back to the year 1952, when first ferroalloys were manufactured in Slovakia.

Today, the company manufactures and offers to its customers a wide range of manganese and silicon ferroalloys, namely FeMnC, FeMnMC, FeSiMn, FeSi 45%, FeSi 65%, FeSi 75%, FeSiCa. In addition to bulk ferroalloys, OFZ, a.s. also manufactures cored wires with the fillers of CaSi, S, C, CaFe, CaFeAl, Ti, FeSi.

Its manufacturing program also includes by-products from furnace dust and slag – products for the building industry: Microsilica-Sioxid, Grasimat, and Simat.

OFZ, a.s. is located centrally in relation to the metallurgical centers of Slovakia, Poland, Czech Republic, Hungary and Austria. It is one of the most important suppliers of ferroalloys for the region of Central Europe, where almost 93% of the production is sold.


The Quality Management System has been established in the company since 1994 (according to STN ISO 9001) certified by TŰV Nord. Since 1996 OFZ has been an affiliate member and since 2004 a regular member of the European Association of Ferroalloys Producers - Euroalliages headquartered in Brussels. The company is also a member of International Manganese Institute IMnI seated in Paris since 2000 and an affiliate member of CaSi Institute seated in Brussels since 2013.

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