Seaspan Corp has committed to backing Swiber Holdings, signing a $200m investment in the restructuring OSV owner.

Swiber will diversify into the LNG power sector and restructure its debt after two years of court oversight in a plan designed to resuscitate the troubled Singapore company.

The US-listed boxship giant in October signed a binding term sheet to buy 80% of its enlarged capital and new preference shares in subsidiary Equatoriale Energy.