Stena-controlled tanker owner Concordia Maritime is hunting for a new chief financial officer after Ola Helgesson resigned.

The product carrier specialist said the executive quit after six years in order to take on new challenges.

"It has been a real pleasure to work with Ola over many years," said chief executive Kim Ullman.

"During his time at Concordia Maritime, he has strongly contributed to development of both the finance function and the company’s operations in a broader perspective.