Sustainability report 2019

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PUBLICATION DATE The CSR Report 2019 was published at the same time as the Annual Report 2019 on 5 March 2020 on the corporate website. CONTACT Any suggestions you may have for improving our sustainability policy or the way we report on it are greatly appreciated. We are happy to engage with you on this subject, in which case you are kindly requested to contact:

Philippine crew to Anglo Eastern is was completed in 2019. 473 crew members, primarily from the Philippines, were included in the composition of workforce over 2018. The outflow of this crew has been reported in this 2019 report. For our detailed HR reporting, please refer to page 74. CO 2 DATA The CO 2 data covers all fuel consumed by vessels of the Dredging & Inland Infra and Offshore Energy divisions. ISO and ISM standards are used for the conversion of fuel to CO 2 . For the conversion of volume to weight, the ISO 8217:2012 standard is followed. The most stringent density factor of 0.890 kg/l is applied to the MGO/MDO conversion. The following ISO and ISM standards are used for the conversion of fuel to CO 2 : ‚ ‚ Volume to weight conversion takes place according to ISO specification 8217E, using the following specific gravity per liter: – MGO/MDO 0.890kg – HFO 0.991kg ‚ ‚ Conversion of MT of fuel to CO 2 takes place according to IMO Resolution MEPC.212(63), using the following conversion factor per MT of fuel: – MGO/MDO 3.206 MT CO 2 – HFO 3.114 MT CO 2 ‚ ‚ Conversion of m 3 of biofuel to CO 2 takes place according to DEFRA carbon emission factors, using the following conversions factor per m 3 of fuel: – 34.60 kilograms of CO 2 subcontractors that work under our supervision. Lost Time Injury (LTI) expresses the number of workplace accidents serious enough to result in absence from work. Lost Time Injury Frequency (LTIF) expresses the number of workplace accidents resulting in absence from work per 200,000 hours worked. The LTIF overview on page 77 shows a breakdown for the various divisions. In addition to LTIF, we also provide the Total Recordable Injury Rate (TRIR). TRIR is composed of LTIs, Medical Treatment Cases and Restricted Work Cases, per 200,000 hours worked. SUPPLY CHAIN DATA The supply chain data refers to the procurement spend by the strategic suppliers of the Central Procurement department. 260 of these suppliers are regarded as strategic partners who account for some 90% of the Corporate Procurement department’s purchasing volume. SAFETY DATA Our safety data covers all our own employees including

Claire Bryant Sustainability Manager Telephone: +31 78 6969310 Email: csr@boskalis.com Website: www.boskalis.com/csrreport

SUSTAINABILITY REPORT 2019 – BOSKALIS