Boskalis CSR report 2017

Impact on the environment CSR 2017 – BOSKALIS 34 SHIP DISMANTLING POLICY Boskalis is committed to the safe and sustainable dismantling of the vessels it decommissions and is ahead of existing international legislation and regulations in this area. Prerequisites in our dismantling policy include additional stricter safety requirements, a hard surface on which to dismantle the vessel and responsible disposal of waste. For each vessel, the possibilities for responsible dismantling locally are assessed and weighed against the environmental and other costs of transporting it over a long distance, for example to a certified ship dismantling yard in Europe. Where relevant, agreements are made with local yards in close consultation with the NGO Shipbreaking Platform to adapt business processes in such a way that they meet Boskalis’ stringent requirements. During the ship dismantling process, knowledge is shared with the local yards. We have been repeatedly recognized as industry leader in this field by the NGO Shipbreaking Platform. DISMANTLING IN 2017 Vessels of 500 GT+ are dismantled at certified shipyards in accordance with the Hong Kong Convention and Boskalis’ own stricter standards. For older, 500 GT+ vessels that are offered for sale, we draw up an Inventory of Hazardous Materials (IHM) as part of the sales contract. The sales contract also stipulates that, in the event of future dismantling, the new owner must dismantle the vessel on a hard surface and comply with the Hong Kong Convention. In 2017, two dredging vessels of 500 GT+ were dismantled at certified shipyards in the Netherlands. Two vessels of 500 GT+ were sold in 2017, as well as various smaller pieces of floating equipment. Furthermore, an offshore support vessel, a floating sheerleg crane and a heavy transport vessel were dismantled in Turkey. Based on the fleet rationalization program announced in July 2016, 10 dredging and 14 offshore vessels will be taken out of service over the period 2016-2018. The vessels taken out of service will be dismantled, laid-up or sold. SUSTAINABLE FLEET MANAGEMENT Our new equipment complies with the most stringent energy consumption standards. Where possible, we increase equipment sustainability by way of: ‚ ‚ Energy-saving measures – By making the installations we use on board our vessels, such as cooling, ventilation, air-conditioning and lighting, as efficient as possible. ‚ ‚ The Ship Energy Efficiency Management Plan – Applicable on board all our vessels, this plan stimulates crew awareness regarding efficient energy consumption and environmental impacts. ‚ ‚ Raising environmental awareness among our crew – In 2017, we once again organized Marine Environmental Awareness FLEET RELATED ACTIVITIES

courses for our fleet personnel in collaboration with the ProSea Marine Education Foundation. The course provides basic knowledge on relevant environmental legislation, the rationale behind the legislation, technical requirements, ecological principles and environmental challenges. The course specifically focuses on the contribution of the human element in preventing pollution and is intended to educate, encourage and empower officers on board vessels and project/office personnel to contribute to environmentally sound shipping and to ensure compliance with pollution prevention measures. Four two-day courses were organized, in which more than 100 colleagues participated. ‚ ‚ Separate collection and processing of waste – We comply with the IMO MARPOL regulations, which prohibit waste being discharged overboard. All our vessels over 400 GT have a waste management plan. ‚ ‚ Mitigation of turbidity – Green valves are used on our trailing suction hopper dredgers. Boskalis has developed a monitoring system that enables us to analyze turbidity caused by a dredging project, at any given time. This way, we can adapt the performance of the work accordingly and in doing so limit or prevent any ecological impact. Also, a new innovative ‘Plumigator’ has been installed on one of our trailing suction hopper dredgers, strongly reducing turbidity during the dredging process. ‚ ‚ Preventative measures against oil spills. ‚ ‚ Preventative measures against the pollution by ship generated sewage. ‚ ‚ Prevention of the use of organotin compounds in ships’ antifouling systems. BALLAST WATER The spread of invasive species through ballast water is now recognized as a great threat to the ecological and the economic wellbeing of the planet. Boskalis aims to be an early follower in complying to regulations regarding the release and treatment of ballast water. In 2017, we implemented a Ballast Water Management Plan across our fleet. As a result, all Boskalis vessels now comply with the BWM D1 standard (mid-ocean exchange) of the Ballast Water and Sediments Convention (BWM Convention). This convention was adopted by the International Marine Organization (IMO) and came into force as per 8 September 2017. At this point in time, it is not yet clear which technology will meet the BWM D2 standard, as well as being economically viable. This standard requires all organisms in ballast water to be destroyed prior to release. This year, in view of the diversity of our fleet, we drew up an exhaustive inventory of requirements for each of our vessels. Each type of vessel will require its own, specific treatment equipment, fitting to its operational profile and characteristics.