TréfilUnion is a wire drawing company specialized in the production of low and high carbon steel wire as well as prestressing steel.

The company is an industry partner and expert in the manufacture, re-processing and refining of wire products. With its high-quality product range, the company supports its customers in a wide variety of industrial sectors such as automotive, mechanical engineering, packaging industry, plastics processing and also in such specialized environments as the tire and upholstery industry as well as in the field of concrete parts as well as in bridge and track construction. The products of TréfilUnion SAS are used in a wide variety of production processes. The range includes products such as high and low carbon wire, spring steel wire, iron wire, galvanized wires, prestressing steel or steel cables.

The company is known in the market for its years of experience and superior product quality. This is ensured by modern machinery, efficient production methods and highly specialized personnel, as well as the most important international certifications.

TréfilUnion employs more than 150 people in its two French plants and achieved a turnover of EUR 42 million in 2018.

Mutares acquired the French company in June 2019 from the Luxembourg group ArcelorMittal.