Compass Minerals International, Inc. engages in the production of salt, plant nutrients, and magnesium chloride for distribution in North America. It operates through the following segments: Salt, Plant Nutrition North America, and Plant Nutrition South America. The Salt segment offers products for use in road deicing and dust control, food processing, water softeners, and agricultural and industrial applications. The Plant Nutrition North America segment produces and markets sulfate of potash crop nutrients, industrial-grade SOP and micronutrients. The Plant Nutrition South America segment manufactures specialty plant nutrition solution-based products that are used in direct soil and foliar applications. The company was founded in 1993 and is headquartered in Overland Park, KS.