Headquartered in Kansas City, Missouri, Kansas City Southern (KCS) is a transportation holding company that has railroad investments in the U.S., Mexico and Panama. Its primary U.S. holding is The Kansas City Southern Railway Company, serving the central and south central U.S. Its international holdings include Kansas City Southern de Mexico, S.A. de C.V., serving northeastern and central Mexico and the port cities of Làzaro Càrdenas, Tampico and Veracruz, and a 50 percent interest in Panama Canal Railway Company, providing ocean-to-ocean freight and passenger service along the Panama Canal. KCS' North American rail holdings and strategic alliances are primary components of a NAFTA Railway system, linking the commercial and industrial centers of the U.S., Mexico and Canada.