Mountain filling

Mountain stowing is the bringing in of material into underground mines (hollows) for the protection of the surface. The materials which are used must correspond to general requirements. They must have mineral character and be physical suitable.

Mining operation 2024

After potash mining ceased in the Bleicherode and Sollstedt mining fields, huge mining cavities remained. This created significant risks to public safety, which can be counteracted or eliminated by adding rock backfill. This proof of long-term safety is established and documented by authorities, research institutes and their partners.