A South Korean-hailed big hauler and its skipper kept in Iran in January have been delivered, the unfamiliar service in Seoul says.
Iran held onto the Hankuk Chemi close to the essential Strait of Hormuz, blaming it for disregarding contamination rules.
All the 20 team individuals were liberated in February, aside from the chief.
The episode occurred in the midst of pressures over Iranian supports frozen in South Korean banks as a result of US sanctions. Iran said the cases were not connected.
Be that as it may, the arrival of the boat and the chief comes in the midst of reports Seoul and Tehran have gained some headway in opening the assets, which absolute $7bn (£5bn).