All products Soepenberg manages and processes are checked for reliability before being used. Soepenberg has all important certifications, licenses and approvals necessary in Europe:

  • ISO DIN EN 9001:2015
  • HaCCP
  • Waste management company – storage, treatment, recycling of waste
  • Waste management company – dealing in and providing waste
  • Waste management company - dealing and providing waste according to AVV

The Soepenberg Group works with several institutes: the University Lower Rhine and the Institute for Plant Nutrition at the University in Bonn, the University Rhein-Waal in Kleve, the Technical University Dresden and the University Magdeburg-Stendal. Soepenberg is a member of the Kompetenzzentrum für Düngemittel und Sekundärrohstoffe (KDS e.V.) (Center of Excellence for Fertilizers and Secondary Raw Material) an association which supports the promotion of closed loop recycling management.



Soepenberg is extremely serious about the quality of its goods and is involved in various networks. The company founded the association KDS with other partners. Products and new raw material are jointly assessed with regard to their effects and approval and in relation to environmental protection and the economy. More information can be found at www.kds-ev.de