Kjell Inge Rokke's Aker Group has appointed Torbjorn Kjus as its chief economist.

Kjus will join the Oslo-listed group at the end of this month from Vistin Pharma, where he was head of the drugmaker’s energy trading operation.

His six-month stint at Vistin Pharma ended on 2 January this year, when it was announced he had left the company.

Six days later, the company announced it would close its energy trading operation after racking up almost $12m in losses, which appears to have been a failure of strategy rather than of personnel.