The Jan De Nul Group in Belgium has signed contracts with Tianjin Xinhe Shipbuilding Heavy Industry Co Ltd in Tianjin, China, for the construction of five workboats, according to a report on www.sandandgravel.com. The vessels reportedly will have a length of 28m, breadth of 12.3m, and will be designed to transport fuel oil in accordance with the most stringent requirements. All of the fuel tanks will be provided with a double hull. (Source: www.sandandgravel.com)