Niels Stolt-Nielsen is turning down longer-term charter business to keep his chemical tankers ready to capitalise on rising spot rates.

The chief executive of Oslo-listed group Stolt-Nielsen said the vessels achieved an average rate of $18,786 per day in the first quarter ending 28 February.

He told a conference call with analysts: “Just before I arrived here, I spoke to the chief commercial officer for Stolt Tankers, and he said today it’s probably around $20,000 a day.