Compass Minerals International, Inc. provides essential minerals in the United States, Canada, the United Kingdom, and internationally. It operates through two segments, Salt and Plant Nutrition. The Salt segment produces, markets, and sells sodium chloride and magnesium chloride, including rock salt, mechanically and solar evaporated salt, and brine and flake magnesium chloride products; and purchases and sells potassium chloride and calcium chloride to sell as finished products or to blend with sodium chloride to produce specialty products. This segment provides products for use as a deicer for roadways, consumer, and professional use; as an ingredient in chemical production; for water treatment, human, and animal nutrition; and for various other consumer and industrial uses, as well as …