Rentech Nitrogen Partners, L.P. announced that it has signed a long-term agreement with Tessenderlo Kerley, Inc. (TKI), the North American subsidiary of Brussels-based Tessenderlo Group, to supply TKI with ammonia produced from its East Dubuque, Ill., facility.

The ammonia will be used by TKI to produce TKI liquid fertilizer Thio-Sul. TKI will lease property from Rentech Nitrogen adjacent to the East Dubuque fertilizer facility to build a new plant to manufacture the TKI liquid fertilizer Thio-Sul.

TKI will own, construct, and operate the new production plant. Construction is expected to begin immediately upon receiving approval of necessary permits. When completed, the new plant will enhance TKI's position as the world’s largest producer of sulfur-based liquid fertilizers.