Castor Maritime raised a few eyebrows when the serial buyer of bulkers and tankers was reported to breaking into containerships — but all is not as it seems.

Broker reports linked the Petros Panagiotidis-led company to the purchase of a pair of sub-panamax boxships from Indonesian operator Temas Lines in April.

Castor was said to have bought the 2,700-teu Situ Mas (built 2005) and Segara Mas (built 2006) for about $14.2m