The shipbuilding concern became Mitsubishi Zosen in October 1917, drawing on activity begun in 1880. Independent as Mitsubishi Jukogyo from April 1934, it absorbed Yokohama Senkyo in August 1935. It split in January 1950 into eastern, western and central companies, later named Mitsubishi Nippon Jukogyo, Mitsubishi Zosen and Shin Mitsubishi Jukogyo. They reunited in June 1964 as Mitsubishi Jukogyo, although Lloyds continued to list some old names afterwards.
Keep the explicit scope label independent; no alias or company identity is inferred.