Siegfried Jacob Metallwerke (SJM) specialises in the trading, processing and treatment of non-ferrous metals, residues containing non-ferrous metals and alloyed steels as well as the production of copper-based alloys, copper cathodes and high-quality nickel and zinc base materials for the chemical industry.

As an important partner to the metal producing and processing industry, the companies of the Jacob Metal Group have been developing solutions in the field of metal recycling for 70 years and make an important contribution to optimising the production and disposal processes of their suppliers and customers.