Construction and contract mining giant CIMIC has rewarded shareholders with a 25 per cent increase in dividends as revenue growth in all of its core businesses contributed to a 22 per cent rise in half year profit.

The company involved in major road projects including Sydney’s WestConnex and the widening of Melbourne’s CityLink made a net profit of $323 million in the six months to June 30, up from $265 million in the same period a year ago. CIMIC, which is 73 per cent owned by Germany’s…