China Merchants Energy Shipping (CMES) has exercised options for LNG carrier newbuildings at Dalian Shipbuilding Industry Co (DSIC) and inked a letter of intent for an additional four vessels at the same shipyard.

In a regulatory filing, CMES said it signed up for two 175,000-cbm LNG ships at the state-owned shipyard, bringing the total of firm units it has placed there to four.

The two ships were optional units held at DSIC from a CMES order for two vessels earlier this year.