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
ISO 9001 Certificate
Werra plant, Hattorf, Unterbreizbach, Wintershall underground recovery
Certificate Qualified Waste Management
Werra plant, underground recovery
Halal Certificate
Werra plant with Wintershall and Hattorf site, Zielitz plant
Products
NUTRIKS® KaliSel
Potassium Sulphate 99.9% K2SO4, Ph. Eur., FCC, E 515
Potassium Chloride 99.9% KCl, Ph. Eur., USP
NUTRIKS® Epsom
AQIS Certificate
Werra plant, Hattorf site
ISO 9001 Certificate
Werra plant with Hattorf, Wintershall, Unterbreizbach site; Sigmundshall plant; Zielitz plant
Sicher mit System Certificate
Werra plant with Hattorf, Wintershall and Unterbreizbach site
ISO 50001 Certificate
K+S Minerals and Agriculture GmbH
ISO14001 Certificate
Tailings pile management (residue management), including the Hattorf and Wintershall tailings pile sites
Kosher Certificate
K+S Minerals and Agriculture GmbH and Frisia Zout B.V.
Herfa-Neurode
Certificate Qualified Waste Management
Werra plant, Herfa-Neurode underground storage
ISO 9001 Certificate
Werra plant, Herfa-Neurode underground storage
Unterbreizbach
ISO 9001 Certificate
Werra plant, Hattorf, Unterbreizbach, Wintershall underground recovery
Certificate Qualified Waste Management
Werra plant, underground recovery
AQIS Certificate
Werra plant, Unterbreizbach site
ISO 9001 Certificate
Werra plant with Hattorf, Wintershall, Unterbreizbach site; Sigmundshall plant; Zielitz plant
Sicher mit System Certificate
Werra plant with Hattorf, Wintershall and Unterbreizbach site
ISO 50001 Certificate
K+S Minerals and Agriculture GmbH
Wintershall
ISO 9001 Certificate
Werra plant, Hattorf, Unterbreizbach, Wintershall underground recovery
Certificate Qualified Waste Management
Werra plant, underground recovery
Halal Certificate
Werra plant with Wintershall and Hattorf site, Zielitz plant
Products
NUTRIKS® KaliSel
Potassium Sulphate 99.9% K2SO4, Ph. Eur., FCC, E 515
Potassium Chloride 99.9% KCl, Ph. Eur., USP
NUTRIKS® Epsom
ISO 9001 Certificate
Werra plant with Hattorf, Wintershall, Unterbreizbach site; Sigmundshall plant; Zielitz plant
Sicher mit System Certificate
Werra plant with Hattorf, Wintershall and Unterbreizbach site
GMP Certificate
Werra plant, Wintershall site
Products
Potassium Sulphate 99.9% K2SO4, Ph. Eur., FCC, E 515
Potassium Chloride 99.9% KCl, Ph. Eur., USP
ISO 50001 Certificate
K+S Minerals and Agriculture GmbH
ISO14001 Certificate
Tailings pile management (residue management), including the Hattorf and Wintershall tailings pile sites
Kosher Certificate
K+S Minerals and Agriculture GmbH and Frisia Zout B.V.