Fertilisers

Tessenderlo Group is a leading producer of  potassium sulphate (SOP) and sulphur-based liquid fertilizers.

With a production capacity of approximately 750.000 tonnes of potassium sulphates, Tessenderlo Group is ranked second in the world.

Tessenderlo Group's subsidiary Tessenderlo Kerley Inc. (TKI), located in Phoenix Arizona (US), is a world leader in the production of sulphur-derived liquid fertilizers marketed under brand names such as Thio-Sul®, ATS® (Ammonium Thiosulphate) and KTS® (Potassium Thiosulphate).
TKI also manufactures soil amendments as well as a range of triazone-based, slow-release nitrogen fertilizers under the Trisert® brand name.