Engineer Sven Heinisch manages the corporate group USUM, founded by his father in 1992, in the town of Steigra (50 km south-west of Halle/Saale). USUM stands for Unstrut-Saale-Umweltschutz (Unstrut-Saale Environmental Protection). The group USUM Grundstoffaufbereitung und Service GmbH operates a roughly seven-hectare industrial site on the recultivated former rubble dump site of an open-cast limestone quarry. Today, the business has a team of eight employees and produces:

  • Compost certified for agricultural use
  • Soil
  • Mineral potash fertiliser
  • Recyclable materials from mineral construction site waste