Taiwan's Wan Hai Lines has returned to profit in the first quarter as revenue rose.

The container line said net earnings to 31 March were TWD 132.31m ($4.42m), up from a loss of TWD 200.31m in 2017.

Revenue rose to TWD 14.91bn against TWD 13.87bn the year before.

Operating expenses increased to TWD 13.83bn, compared to TWD 12.91bn in 2017.