The Asiatic/Atlantic Lloyd group has taken its tally of traditional panamax boxships into double figures.

The Bunnemann family and investors are forking out a total of about $17.2m to acquire the 4,363-teu Ital Melodia and Ital Massima (both built 2007).

The acquisition brings the Singapore and Hamburg-managed company's fleet to 11 traditional panamax containerships.

The shipowner has invested heavily in the midsize containership sector in the past four years.