From the waters of the Great Salt Lake in Utah, Great Salt Lake Minerals uses environmentally responsible processes to produce sulfate of potash specialty fertilizer. Sulfate of potash, also known as potassium sulfate or SOP, provides the essential nutrients potassium and sulfur with virtually no chloride. This makes it a vital fertilizer for high-value crops such as vegetables, fruits and nuts, as well as for turf grass and horticulture.

GSL also produces Chlori-Mag, an efficient specialty nutrient for wheat growers in many parts of the country.