Henderson-based ship builder, Austal Ltd, has announced a net profit after tax of $29.9 million for the six months to December 2007, up 35 per cent on the $19.4 million achieved in the 2006 corresponding half.

Henderson-based ship builder, Austal Ltd, has announced a net profit after tax of $29.9 million for the six months to December 2007, up 35 per cent on the $19.4 million achieved in the 2006 corresponding half.