International standards & norms
Our certificates at the Werra plant
Our products are certified according to international standards and norms. Here you can find our current certificates.
Hattorf
AQIS Certificate
Werra plant, Hattorf site
Halal Certificate
Werra plant with Wintershall and Hattorf site, Zielitz plant
Products
NUTRIKS® KaliSel
NUTRIKS® Epsom
Potassium Chloride 99.9% KCl, Ph. Eur., USP
Potassium Sulphate 99.9% K2SO4, FCC
ISO14001 Certificate
Tailings pile management (residue management), including the Hattorf and Wintershall tailings pile sites
ISO 50001 Certificate
K+S Minerals and Agriculture GmbH
ISO 9001 Certificate
Werra plant with Hattorf, Wintershall, Unterbreizbach site; Sigmundshall plant; Zielitz plant
ISO 9001 Certificate
K+S Minerals and Agriculture GmbH
Kosher Certificate
K+S Minerals and Agriculture GmbH, K+S France SAS, Frisia Zout B.V.
Certificate Qualified Waste Management
Werra plant, underground recovery
Sicher mit System Certificate
Werra plant with Hattorf, Wintershall and Unterbreizbach site
Herfa-Neurode
ISO 9001 Certificate
K+S Minerals and Agriculture GmbH
Certificate Qualified Waste Management
Werra plant, Herfa-Neurode underground storage
Unterbreizbach
AQIS Certificate
Werra plant, Unterbreizbach site
ISO 50001 Certificate
K+S Minerals and Agriculture GmbH
ISO 9001 Certificate
Werra plant with Hattorf, Wintershall, Unterbreizbach site; Sigmundshall plant; Zielitz plant
Certificate Qualified Waste Management
Werra plant, underground recovery
Sicher mit System Certificate
Werra plant with Hattorf, Wintershall and Unterbreizbach site
Wintershall
GMP Certificate
Werra plant, Wintershall site
Halal Certificate
Werra plant with Wintershall and Hattorf site, Zielitz plant
Products
NUTRIKS® KaliSel
NUTRIKS® Epsom
Potassium Chloride 99.9% KCl, Ph. Eur., USP
Potassium Sulphate 99.9% K2SO4, FCC
ISO14001 Certificate
Tailings pile management (residue management), including the Hattorf and Wintershall tailings pile sites
ISO 50001 Certificate
K+S Minerals and Agriculture GmbH
ISO 9001 Certificate
Werra plant with Hattorf, Wintershall, Unterbreizbach site; Sigmundshall plant; Zielitz plant
ISO 9001 Certificate
K+S Minerals and Agriculture GmbH
Kosher Certificate
K+S Minerals and Agriculture GmbH, K+S France SAS, Frisia Zout B.V.
Certificate Qualified Waste Management
Werra plant, underground recovery
Sicher mit System Certificate
Werra plant with Hattorf, Wintershall and Unterbreizbach site