Petrovietnam Transportation Co.

Hercules M’s funnel has a triangle narrowly edged red along its diagonal sides. A gold half-anchor forms P with a white T. The ground colour apparently survives from her previous identity as Kamari under Cardiff Marine.

Poseidon M, the first vessel, has the triangle mirrored so its point faces the bow on both sides, while the emblem is not mirrored. The colours derive from her previous identity as Yannis M of Eastern Mediterranean Maritime. The description uses a 2006 starboard photograph and an earlier portside view.