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Date	Title
May 17, 2022	Koppers Announces Participation in Upcoming Investor Conferences
May 6, 2022	Koppers Reports First Quarter 2022 Results
April 25, 2022	Koppers Holdings Inc. Publishes Digital 2021 Annual Report
April 22, 2022	Koppers Holdings Inc. Schedules First Quarter 2022 Conference Call
April 20, 2022	Koppers President and CEO Leroy Ball to Present Keynote Address At Pittsburgh Chemical Day 2022
April 11, 2022	Koppers Announces Appointment of Stephen Lucas as Vice President of Culture and Engagement
April 5, 2022	Koppers Announces Sale of Property and Assets at Facility in Sweetwater, Tennessee
March 10, 2022	Two Koppers Employees Named 2022 STEP Ahead Award Honorees By The Manufacturing Institute
February 23, 2022	Koppers Reports Fourth Quarter and Full-Year 2021 Results; Provides 2022 Outlook
February 23, 2022	Koppers Announces New Leadership Appointments To Support Long-Term Strategy
February 23, 2022	Koppers Holdings Inc. Reinstates Quarterly Cash Dividend and Declares First Dividend Since 2014
February 9, 2022	Koppers Holdings Inc. Schedules Fourth Quarter and Full-Year 2021 Conference Call