 In addition to its freight and passenger services, SMN also actively took part in other transport ventures – for example, Martin Air Charter (now Martinair), the specialized LNG tanker "Antilla Cape", Container Terminal Amsterdam (CTA) and van Swieten Trucking.In the 1960s SMN acquired Hollandsche Stoomboot Maatschappij with regular services to England and West Africa.Starting in the late 1950s, the advent of mass air travel spelled the end of the ocean liners.