The Morton Salt Company's current headquarters office is in the River Point building at 444 West Lake Street in Chicago, becoming its first tenant in December 2016. Its previous headquarters was at 123 North Wacker Drive. Prior to its acquisition in 1999, the firm's corporate headquarters was at 100 North Riverside Plaza (later the headquarters of Boeing) and before that at 110 North Wacker Drive and 208 West Washington Street Morton operates a research & development laboratory in Elgin, Illinois, and produces salt at eight vacuum evaporation plants, six underground mines, five solar evaporation plants, and five packaging facilities across the United States, Canada, and The Bahamas.