SS Sugar Transporter was the title of a cargo ship built by Hall, Russell & Company and launched on 21 November 1957. Its construction was sponsored by the wife of Mr. J. F. P. Tate, a director of Silvertown Services Shipping Company Ltd. In 1966, the ship's name was changed to Malmi under new owners from Helsinki, Finland. On 6 December 1979, during a voyage from Gdańsk, Poland to Koverhar, Malmi capsized and sank in the Baltic Sea, 40 nautical miles (46 mi; 74 km) northeast of Gotska Sandön, when her cargo of coke shifted in heavy weather.

58°48′N 20°21′E / 58.800°N 20.350°E / 58.800; 20.350