Kassel, Germany-K+S KALI GmbH (K+S) will cease production of its Thomaskali® brands, as well as of patent-PK®, and will remove these products from its portfolio. Due to a lack of phosphate resources there are no growth opportunities in the phosphate-potassium-fertilizer segment, and therefore K+S has decided to take this step and to cease its production of PK fertilizers. K+S will in the future concentrate on providing the domestic and overseas markets with top-grade potash and magnesium products.