Greece’s Navios Group is bumping up its growing fleet with its first LNG dual-fuel container ship newbuildings.

It is said to be close to signing up to six 7,700-teu vessels worth $726m with South Korea’s HJ Shipbuilding & Construction (HJSC) — formerly Hanjin Heavy Industries & Construction.

The deal is a first for the shipowner and the reborn Hanjin Heavy.

Shipbuilding sources said a letter of intent was signed a few months ago and talks are now at the “finalising stage”.