 In 1984, Sealink was bought by Sea Containers who continued to operate the British operations under the Sealink name.In 1989, SMZ was acquired by Stena Line and in 1990 Stena bought Sealink, thus for the first time, the Dutch and British operations were under the same ownership.In 1990, when Stena Line took control of the route, the Harwich to Hoek van Holland service was being operated with two passenger and one freight Ro-Ro vessels.