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Date	Title
September 9, 2021	Koppers Announces Participation in Sustainable Battery Projects
September 8, 2021	Koppers Holdings Inc. to Host 2021 Investor Day
August 16, 2021	Koppers Holdings Inc. Issues 2020 Corporate Sustainability Report
August 6, 2021	Koppers Holdings Inc. Reports Second Quarter 2021 Results
August 6, 2021	Koppers Announces $100 Million Share Repurchase Program
August 6, 2021	Koppers Announces Planned Leadership Succession
July 28, 2021	Koppers Melissa Hadley Named 2021 STEP Ahead Award Honoree by The Manufacturing Institute
July 26, 2021	Koppers Holdings Inc. Schedules Second Quarter 2021 Conference Call
May 17, 2021	Koppers Publishes Enhanced Digital 2020 Annual Report
May 7, 2021	Save The Date: Koppers To Host Investor Day on September 13, 2021
May 7, 2021	Koppers Holdings Inc. Reports Record-First Quarter 2021 Results
April 26, 2021	Koppers Holdings Inc. Schedules First Quarter 2021 Conference Call
March 25, 2021	Koppers Inclusion & Diversity Committee Hosts A Virtual National Town Hall with Police Chiefs to Discuss Race Relations
February 24, 2021	Koppers Holdings Inc. Reports Fourth Quarter and Full-Year 2020 Results; Provides 2021 Outlook
February 18, 2021	Koppers Completes Sale of Facility in Follansbee, West Virginia
January 28, 2021	Koppers Holdings Inc. Provides Update on Fourth Quarter and 2020 Business Segment Performance