K+S AG (K+S) is a mineral company that focuses on producing potash and magnesium products, and European salt activities. It serves a variety of industries including agriculture, food, animal feed, and pharmaceuticals, among others. K+S products include plant nutrients, potassium chloride, fertilizers, pharmaceutical salts, dietary supplement salts, and industrial products. The company's products are used in various industries, including agriculture, food, animal feed, and pharmaceuticals. It also offers related services such as granulation; recycling; disposal and reutilization of waste salt mines; logistics; and trading in different basic chemicals. Some of the company's key brands include KALISOP, KORN-KALI, ROLL-KALI, and PATENTKALI, among others. It has a presence in numerous countries including Australia, Belgium, Brazil, Canada, China, Czech Republic, France, Germany, the UK, India, Italy, Kenya, Netherlands, Panama, Poland, Portugal, Singapore, South Africa, Spain, Uganda, the UAE, and the US. The company operates through one business segment and classifies its business operations through five geographical segments.

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K+S is actively engaged in several R&D initiatives focusing on process optimization and innovation, collaborations and partnerships, major projects, technological advancements, and environmental and sustainability goals. The company optimize existing production processes, developing new process variants, and integrating artificial intelligence into operations. Collaborations with institutions like the Institute of Applied Plant Nutrition and the International Magnesium Institute are fostering innovation. Major projects such as the Werra 2060 aim to transform production methods to enhance sustainability. The company is also focused on reducing its carbon footprint and improving energy efficiency, transitioning to renewable energies, and investing in power-to-heat technologies. The R&D unit of the company is the K+S Analytics and Research Center (ARC) at the Unterbreizbach site. The ARC functions as an internal research cluster for the entire K+S Group, conducting application-oriented research to optimize and innovate products and processes, performing extensive analyses, and optimizing existing processes while piloting new technologies. It also collaborates closely with colleges, universities, and external research institutions to foster innovation. In FY2025, the company spent EUR13 million on R&D, which as a percentage of revenue, stood at 0.4%.