K+S AG is a German mining and chemical company headquartered in Kassel. It extracts and processes potash (primarily potassium chloride) and magnesium products for use in fertilizers and industrial applications, and produces salt for food, industrial, and de‑icing uses in Europe.
The company operates potash mines in Germany and at Bethune in Saskatchewan, Canada, and runs processing and logistics facilities to supply bulk and specialty products. Its customer base spans agriculture, chemical and pharmaceutical industries, food processing, and municipal services. K+S also provides waste management and recycling services, including underground disposal and residues management, partly through the REKS joint venture. The business places a strong operational focus on water and tailings management associated with potash and salt production.
