A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the entire site containing brine management treatment, salt storage and mine shafts
Germany, Mining Industry

K+S Minerals and Agriculture GmbH


Tucked away in the Lower Rhine region of North Rhine-Westphalia, the K+S Minerals and Agriculture GmbH site in Rheinberg stands as a key hub in one of Germany’s leading companies for potash and salt products. With a long-standing legacy in resource extraction and processing, K+S has become synonymous with quality mineral products, sustainable practices, and innovation in agriculture and industry alike.

What K+S Does in Rheinberg

At its Rheinberg location, K+S specializes in the production and processing of high-purity salt. The core of this operation is centered around the Borth salt mine, one of the most important rock salt deposits in Germany. Unlike potash mining, the focus here is on rock salt extraction through conventional mining techniques and solution mining for the production of vacuum salt.

Shafts and Operation

The Borth mine is an underground network that has been in operation since the 1920s. The site includes:

  • Deep Mine Shafts: The facility includes several vertical shafts used for transporting miners, equipment, and raw salt between the surface and the underground mining levels. These shafts are critical for daily operations and safety logistics.
  • Extensive Tunnel Network: Underground, miners access large chambers carved from salt deposits, using both mechanical cutting tools and controlled blasting techniques. These chambers are supported by engineered pillar systems to maintain structural stability.
  • Ventilation and Safety Systems: The mine is equipped with a comprehensive ventilation system to ensure air quality, as well as state-of-the-art monitoring for gas levels, structural movement, and temperature.
  • Mine Rescue Station: In 2022, K+S invested around €2 million in a new Grubenwehr (mine rescue team) building on-site, demonstrating a strong commitment to occupational safety. The new station provides modern infrastructure for rapid response in case of emergencies underground.

Key Installations and Infrastructure

The Rheinberg facility is equipped with a number of modern and specialized installations, including:

  • Vacuum Salt Plant: This is the heart of the site’s operations. Through a process of solution mining and vacuum evaporation, raw brine is purified and crystallized into pure, white salt—tailored to the specifications of its end use.
  • Brine Management Systems: Environmental safety is a key priority. Advanced systems manage the brine used in solution mining, ensuring controlled extraction and minimal ecological impact.
  • Energy and Environmental Technology: K+S has invested in efficient energy use and emissions reduction. Systems for recovering waste heat, treating process water, and controlling emissions reflect the company’s commitment to sustainable operations.

Local and Global Relevance

While Rheinberg may appear to be a quiet town, the K+S site there plays an important role in serving markets not only across Germany, but throughout Europe and beyond. From keeping roads safe in winter to delivering essential inputs for food processing and manufacturing, K+S Minerals and Agriculture GmbH continues to deliver solutions that are both practical and essential.

A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the blue headframe of a colliery.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the large stone shaft tower.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows a large blue tower containing industrial machines
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows blue headframe of a colliery.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows three tanks containing brine used to mine salt.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the brine management installation.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the brine management installation.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the brine management installation.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows the entire site containing brine management treatment, salt storage and mine shafts
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows blue headframe of a colliery.
A drone photograph of the K+S Minerals and Agriculture salt mine in Rheinberg, Germany. The photo shows a close up of the blue headframe of a colliery.