An owner-managed family business, Must was founded in 1909 and operates a container supply and scrapping business, dealing predominantly with companies in the metals processing sector. It also has a downstream sorting and processing operation, which enables it to supply quality grades of scrap. Salzgitter said. 

Must company will operate as an independent undertaking within the Salzgitter Group and will trade under the new name Harzer Schrott und Recycling GmbH.

Salzgitter said the acquisition supports its Low-CO₂ Steelmaking program (SALCOS), part of which is based on an expansion of scrap recycling.