Cyprus-based Castor Maritime has added yet another ship to its growing fleet.
The company said it is paying $14.8m for an unnamed South Korean-built aframax constructed in 2005.
The Nasdaq-listed owner has now bought 10 secondhand vessels in 2021, swelling the fleet to 16 ships.
The new tanker is its third aframax since diversifying from its core bulker sector earlier this year.
Delivery is expected in the second quarter.
Chief executive Petros Panagiotidis said: "We constantly monitor the market for attractive acquisition opportunities across vessel sizes and segments."
Earlier in April, Castor agreed to pay $18.48m for a Japanese-built panamax bulker constructed in 2011.
The identity of the vessel and its seller were not disclosed.
Castor has spent more than $150m on secondhand purchases in the bulker and tanker markets this year.
Boxships next?
TradeWinds has also reported the company is close to making its first move in the container shipping market.
The shipowner is being linked to the purchase of two sub-panamax boxships from Indonesian operator Temas Line.
Brokers reported that Castor bought the 2,700-teu Situ Mas (built 2005) and Segara Mas (built 2006) for around $14.2m each.
Castor is one of a handful of new names said to be looking at expanding their involvement in the boxship market.
Other players include alternative financier Hayfin Capital Management, which has stepped up its involvement in the sector with investments in three sub-panamax boxships.
The company recently added the 2,702-teu Lioba and Laila (both built 2008) to its fleet for around $13.4m each, according to brokers.
