Compass Minerals International, Inc. engages in the production of salt, sulfate of potassium, and magnesium chloride, and in the provision of records storage. The company is headquartered in Overland Park, Kansas and currently employs 1,954 full-time employees. The company went IPO on 2003-12-12. The firm produces salt, plant nutrients and magnesium chloride for distribution primarily in North America. The firm operates through two segments: Salt and Plant Nutrition. The Salt segment produces and markets salt, consisting of sodium chloride and magnesium chloride, for use in road deicing for winter roadway safety and for dust control, food processing, water softeners and other consumer, agricultural and industrial applications. The Plant Nutrition segment produces and markets various grades of sulfate of potash (SOP), which is used in the production of specialty fertilizers for crops and turf and help improve the quality and yield of crops, while supporting sustainable agriculture. The firm operates approximately 12 production and packaging facilities throughout the Unites States, Canada and the United Kingdom.