Nordic American Tankers (NAT) said it will log $51.9m in additional impairment charges after completing an effort to sell four older suezmax tankers.

The New York-listed suezmax tanker owner said on Tuesday that it sold the fourth vessel, without providing details for the transaction other than to say that the company took advantage of rising prices.

Data from ship valuation service VesselsValue and Greek shipbroker Golden Destiny indicates the company sold 164,000-dwt Nordic Passat (built 2002) for $15.5m