Sri Lankan LPG carrier owner Laugfs is aiming to build up a fleet of 20 ships.
The company has just acquired its third vessel, the 3,500-cbm Lady Martine (built 1998), from Ultragas.
Brokers put the cost at $3m, with the owner itself saying $2.8m.
It has been renamed Gas Courage and flagged in Sri Lanka.
Since 2014, it has spent $16m acquiring three gas carriers.