GM International Services Ltd: GM International Services Limited, a subsidiary of Economicard Worldwide Limited, is the largest and longest established shipping services company in Malta. At GM International Services Limited we offer a very comprehensive service that incorporates all aspects of ship registration. Apart from ship and yacht registration, clients can choose from a range of services including agency, husbandry, bunkering, chandling, transhipments, secretarial, accountancy and legal services, including registration of mortgages.