Report of the Board of Directors and Financial Statements

The report describes TVO's 2017 low-carbon electricity operations, with Olkiluoto nuclear generation totaling 13.4 terawatt hours. It highlights continued progress on the OL3 EPR project, including completed cold functional testing and hot functional testing underway. The Group reported 807 personnel at year-end and described responsibility, safety, environmental management, and GRI-based corporate social responsibility reporting.