Two South Korean-owned LNG carriers have been out of action for over four years as the battle to find a repair solution for their cargo tank containment systems continues — but one has recently loaded test volumes of product.

The 174,100-cbm SK Serenity and sistership SK Spica (both built 2018), which were both constructed with South Korea’s home-designed KC-1 LNG containment system, have spent the bulk of their time since delivery anchored off the South Korean coast near Samsung Heavy Industries’ Geoje Island facility, or in the yard undergoing repair work.