Boxship owner Seaspan Corp recently made a key technical adjustment to the latter delivering half of its order for 10 dual-fuelled neo-panamax boxships, switching the vessels’ bunker tanks from a type-B to a membrane-type design in a bid to make the ships “ammonia-ready”.

The owner, which is building the 10 ships at Samsung Heavy Industries for charter to Israeli liner operator Zim, will now fit five of the vessels with 12,000-cbm, GTT-designed Mark III bunker tanks.