RMK kicks off work on LNG bunkering vessel for Gasum and Sirius

Turkiye’s RMK Marine has officially begun construction of an LNG bunkering vessel for a joint venture between the Finnish state-owned energy firm Gasum and the Swedish shipping firm Sirius.

According to social media posts by RMK and Sirius, the steel-cutting ceremony for the vessel, which will be named Celsius, was held on Wednesday.

With this steel-cutting ceremony, the project is “well underway” and will be able to service its customers in the summer of 2027, Sirius said.

“Celsius will be different from other LNG bunker vessels since it will have a gas combustion unit on board to assist with cool-downs and gassing up. A unique service that will be offered to vessels either carrying LNG or powered by LNG,” the company said.

Last year, Gasum and Sirius announced that they had ordered one LNG bunkering vessel with a capacity of 7,500 cbm from the Turkish shipbuilder.

The vessel will feature a hybrid battery.

It will be 112.9 meters long and 19 meters wide, with a draft of 6 meters.

Sirius and Gasum have a long history together, as Gasum has been the charterer of the bunker vessel Coralius since 2017, and Sirius has been managing Gasum’s bunkering vessel Seagas since 2012.

Most Popular

Japan’s MOL merges six ship management companies into one entity

Japanese shipping giant MOL, owner of a large LNG carrier fleet, has merged six of its ship management companies...

Germany’s BASF gets first LNG cargo under Cheniere contract

German chemicals giant BASF has received its first liquefied natural gas (LNG) cargo under a long-term contract with US LNG exporter Cheniere.

Top 5 news of the week August 24-30

LNG Prime brings you the five most popular news stories on our platform during the week of August 24-30, 2026.

More News Like This

Gasum’s Borlange bio-LNG plant enters commissioning phase

Gasum’s new bio-LNG production plant in Borlange, Sweden, has entered the commissioning phase, according to Lundsby Renewable Solutions.

Gasum to supply LNG to Norwegian ferries

Finnish state-owned energy company Gasum has signed a long-term deal with Norwegian ferry operator Fjord1 to supply liquefied natural gas (LNG) to the latter's ferries.

Gasum, Naftogaz book long-term capacity at Klaipeda FSRU

Finland's Gasum, Ukraine's Naftogaz, Lithuania’s Ignitis, Latvia’s Latvenergo, and Norway’s Equinor have booked long-term regasification capacities at the KN Energies-operated FSRU-based LNG import facility in Klaipeda, Lithuania.

Gasum boosts bio-LNG sales

Finnish state-owned energy company Gasum said it had "significantly" increased its maritime liquefied biomethane (bio-LNG) sales over the last year.