Liner giant Evergreen Marine Corp has floated an enquiry for a quartet of feedership newbuildings as it shortlists bidders for its swathe of ultra-large containerships.

Industry sources said the container carrier has approached shipyards in the Far East for a potential order for four 1,800-teu newbuildings to be delivered in 2021 and 2022.

The names of the shipbuilding companies have yet to emerge.