General Information

Tessenderlo Group is one of the main producers in the world for Potassium Sulphate (SOP) and Sulfur-based liquid fertilizers.

With a production capacity of approximately 1.000.000 tonnes of sulphates, Tessenderlo Group occupies the second place in the world.

For Tessenderlo Group, a full range of SOP products, the vicinity of the harbor of Antwerp, the easy access to highway, railway and waterway are all major assets to satisfy its customer needs.

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