Dutch shipping fund NBZ has put money into two suezmax tankers chartered by Tsakos Energy Navigation (TEN) as it tries to raise more money.

The New York and Brussels-listed company said it had acquired a 3% interest in Partankers XVII, the Norwegian owner of the 163,000-dwt Arctic and the 162,000-dwt Antarctic (both built 2017).

The deal cost $546,000, NBZ added.