Daewoo Shipbuilding & Marine Engineering is continuing to suffer from the high costs of raw materials and the weak dollar with a 40% fall in profits last month.

The world's second-biggest shipbuilder said net income was down at KRW 23bn ($20m) from KRW 38.5bn in January last year.

In a statement to the Korea Stock Exchange the shipbuilder added operating profit was down 74% at KRW 11.5bn