Sembcorp Marine has returned to the red for the fourth quarter while posting less earnings for 2017 due to lower business volume.

The Singaporean shipbuilder posted net quarterly loss of SGD 33.8m ($25.6m) versus black ink of SGD 34.3m a year earlier.

The negative results came amid revenue of SGD 655m, down 21% from the same quarter a year ago due to lower rig building revenue and fewer floater and offshore platform projects.