Wintermar Offshore Marine has sunk to a full year loss of $27.1m as the company had to contend with sizeable impairments on vessel values.

The 2017 results compare with a loss of $16m reported by the Indonesian offshore vessel operator in 2016, in another year impacted by impairments.

“Owing to lower charter rates in 2017 compared to 2016, there was an impairment charge on the value of our fleet in the amount of $20m compared to an impairment of $14.3m