The shipping arm was formed in 1949 as Hydros Tankships and became Hydroship in 1976; Hydrotank was an alias. Rosanoski questions Loughran’s claim that Hydros became Norsk Hydro, reading it instead as the parent’s shipping subsidiary. Hydroship Services appears under both its own and its parent’s entries in 2004. A separate Hydroship name company formed in 1998 became Yaraship in 2004. Related operations included Norsk Hydro Produksjon, formed in 1986; Hydrogas, later Hydrogas Ship; and P/R Nordship, formed at Stabekk in 1985.
Norway, Oslo, later Porsgrunn.
Keep the explicit scope label independent; no alias or company identity is inferred.