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Great Yields Begin Here

Great Salt Lake Minerals uses the natural richness of the Great Salt Lake to refine the vital nutrients that crops, orchards, ornamentals and turf need for health and growth.

Using a natural solar evaporation process, GSLM is the largest producer of Sulfate of Potash (SOP) in North America, and the producer of Chlori-Mag®, a magnesium chloride source.

GSLM is an indispensable resource of fertility knowledge for growers dedicated to improving the health of their operation.

A Premier Potassium Source for Unparalleled Fertility Management

Elite Fertility Products for Optimized Yield

Nourishing Resilient, High-Performing Turf

Maximizing Yield with a High-quality Chloride Source

Organic Grade Fertilizers for High-quality Produce


Sulfate of Potash

health plants SOP is a high-analysis, dual nutrient providing potassium and sulfate sulfur. Learn how SOP can increase quality and yield. 

Innovations in SOP

innovations in SOP A new era of SOP Innovation is upon us. Learn more.



© 2014 Compass Minerals. All Rights Reserved 
9900 W. 109th St., Suite 100, Overland Park, KS 66210 | Phone: 913-344-9200