Norway, June 23 -- HAV Group's water treatment systems business has been awarded several contracts to deliver a total of ten new ballast water treatment systems (BWTS) to various undisclosed shipyards and shipowners in Norway, Spain and the Netherlands.The majority of the BWTS systems will be delivered to newbuild vessels, including cable laying vessels, dive support vessels, offshore support vessels and live fish carriers. The company will also retrofit a BWTS system on board a well intervention vessel. HAV Group's subsidiary, Norwegian Greentech, will supply its compact and energy efficient UV- and filter-based BWTS to all the vessels. The systems will be assembled at the company's headquarter in Fosnavåg, Norway. Most of the equipment de...