Chemical tanker group Stolt-Nielsen has posted a much stronger profit for the first quarter as it booked a one-off tax gain.

The Oslo-listed owner said net earnings to 28 February were $38.8m, up from $15.2m in 2017.

Revenue jumped to $515.3m from $475.65m, and it benefited from a $24.9m gain after the US lowered its federal corporate income tax rate from 35% to 21% from 1 January.