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Date	Title
September 24, 2020	Koppers Leslie S. Hyde Named 2020 STEP Ahead Honoree by The Manufacturing Institute
September 22, 2020	Koppers Holdings Inc. Provides August 2020 Business Update
August 25, 2020	Koppers Holdings Inc. Provides July 2020 Business Update; Reaffirms 2020 Outlook
August 25, 2020	Koppers Holdings Inc. Announces Amendment to KJCC Sale Agreement
August 5, 2020	Koppers Holdings Inc. Reports Second Quarter 2020 Results
July 27, 2020	Koppers Holdings Inc. Reports Preliminary Second Quarter 2020 Results; Provides 2020 Outlook
July 20, 2020	Koppers Holdings Inc. Issues Annual Corporate Sustainability Report
June 17, 2020	Koppers Holdings Inc. Provides May 2020 Business Update
May 20, 2020	Koppers Holdings Inc. Provides First in a Series of Monthly Updates
May 18, 2020	Koppers Holdings Inc. Schedules April 2020 Business Update Conference Call
May 7, 2020	Koppers Holdings Inc. Reports First Quarter 2020 Results
April 27, 2020	Koppers Holdings Inc. Announces COVID-19 Communication Plan; Also Reports Preliminary First Quarter 2020 Results
April 24, 2020	Koppers Changes 2020 Annual Meeting of Shareholders to Virtual-Only Format
April 3, 2020	Koppers Joins Urban League in 'All One Pittsburgh' COVID-19 Campaign
March 11, 2020	Koppers Announces Key Milestone in KJCC Divestiture
March 3, 2020	Koppers Announces New Leadership Appointments
February 27, 2020	Koppers Holdings Inc. Reports Fourth Quarter and Full-Year 2019 Results
February 27, 2020	Koppers Announces Plans to Enter the Copper Naphthenate Market
February 18, 2020	Koppers Announces Retirement of Steven R. Lacy, Chief Administrative Officer, General Counsel and Secretary, Effective Year-End 2020
February 18, 2020	Koppers Announces Agreement to Sell China Distillation Business; Also Reports Preliminary Fourth Quarter 2019 Results
February 11, 2020	Koppers Board Members Named Among WomenInc.'s 2019 Most Influential Corporate Directors
February 10, 2020	Koppers Holdings Inc. Schedules Fourth Quarter and Full-Year 2019 Conference Call
January 6, 2020	Koppers Announces Leadership Changes