


Mitchell’s two funnel portrayals are unclear. His line drawings of Yuyo Maru and Yuyo Maru No. 2 show yellow funnels with red bands, presumed to bear a white Y.
The house flag is red with a characteristic white serifed Y. It appears in the website logo and a bow photograph of Freia Spring, with a funnel detail of Freja Breeze. Eugene Ipavec’s FOTW image uses dark red, for reasons Rosanoski could not establish. Y40’s funnel follows Yuhsho’s 30 July 2007 photograph; that vessel also appears to fly the flag in the 2007 view and a Port Botany photograph of 30 March 2011.
The third account traces the business to Morita Kisen, established in Osaka on 25 June 1948. It joined the Yamashita-Shinnihon group in May 1964 during government consolidation, moved to Tokyo in October 1966, and established Tokyo Kinkai Yuso in October 1969. The name became Yuyo Steamship in July 1970, although Lloyd’s still used Morita Kisen in 1973–1974. Chemical transport began in April 1982; Nippon Oil Tanker became the largest shareholder in March 1991, and headquarters moved to Yokohama in November 1997. Later registers place it under Navix and then Mitsui O.S.K. before again listing it independently.
A merger with Nissho Shipping was agreed for 1 April 2012. Both belonged to the JX Group: JX Tanker held 38.7 per cent of Yuyo and JX Nippon Oil & Energy held 71.7 per cent of Nissho. The announcement says one company would be absorbed into the other without specifying the surviving identity in this account.
Japan, Tokyo; later Yokohama.