First Marine Service is variously dated January 1963 or January 1965. The later account traces it to Daiichi Chuo Sobi, formed in Osaka in 1965 and renamed First Marine Service in June 1975; Lloyds instead names Daiichi Hakuyo Sobi as the predecessor. It merged with Yaesu Kaiun in July 2010 and became Daiichi Chuo Marine in October. The Kosan section also lists Toa Shoji among operating companies, but the overlapping Kosan/Kosen/First Marine records are not fully clear.
Keep the explicit scope label independent; no alias or company identity is inferred.