Norway's Thor Dahl Shipping has returned to profitability in its latest annual report but expects better results ahead as the impact of the strong containership market works its way into its books.

The Sandefjord-based shipowner logged a pre-tax profit of NOK 72m ($7.9m) for 2020, up from a loss of NOK 48m a year earlier.

But the company was not consolidated as a group, so the annual report does not fully reflect its earnings.