StealthGas is expanding its fleet with two acquisitions that had been previously been tied to Vafias family private interests.

The Harry Vafias-led LPG carrier announced Thursday that it bought an 11,000-cbm newbuilding under construction in Japan and that a joint venture bought a 12-year-old, 38,000-cbm vessel.

"Relying on the technical and management expertise gained as leaders in the small LPG market, StealthGas is further expanding its presence in the broader LPG space, thus enhancing and diversifying its revenue stream," said chairman Michael Jolliffe.