Evergreen Marine is planning to order ten to 12 container ships in addition to the 20 vessels it purchased earlier this year.

The ships will be of 8,000teu each and are scheduled for delivery from Q4 2012.

Evergreen has a fleet of 160 vessels and the new orders will increase the company’s orderbook to 73% of its existing fleet size, according to Reuters.

In October, the company ordered 20 ships worth $2bn from Samsung Heavy Industries.