Volunteer Days Participation 2019 26 24 36 17 22 2014 2015 2016 2017 3,284 2,662 3,444 2,000 % of Trinseo employees # of locations hours donated 2018 Sustainability and Corporate Social Responsibility Report | 57 Charitable Contributions Trinseo pursues philanthropic efforts and makes charitable contributions to help strengthen relationships with stakeholders where we live and work, maintain good neighbor relations, and increase employee engagement.