New Koppers CEO overseeing a major company transition | Pittsburgh Post-Gazette
Koppers CEO believes struggling company can do better, transform | TribLIVE.com
koppers-railroad-crosstie-acquisition - Pittsburgh Business Times
Koppers Holdings Inc. Company Profile - The Business Journals
Personalities of Pittsburgh: Jimmi Sue Smith and the 'next evolution' of Koppers Holdings Inc. - Pittsburgh Business Times
How Good Is Koppers Holdings Inc. (NYSE:KOP), When It Comes To ROE?
koppers holdings inc. | Woodworking Network
The Law Offices of Frank R. Cruz Announces Investigation of Koppers Holdings Inc. (KOP) on Behalf of Investors | Business Wire
Koppers Holdings (KOP) - 6 Price Charts 2006-2022 (History)
Koppers Holdings Inc. - AnnualReports.com
Koppers Holdings Inc. Issues 2020 Corporate Sustainability Report
Koppers to sell China chemicals plant; expects 4Q earnings below forecast | Pittsburgh Post-Gazette
Koppers Completes Purchase of Property in Louisiana | citybiz
Koppers Holdings (KOP) Company Information - Simply Wall St
Koppers Holdings Publishes Digital 2021 Annual Report | citybiz
Koppers Holdings (KOP) - 6 Price Charts 2006-2022 (History)
Koppers Holdings Inc. 2021 Q2 - Results - Earnings Call Presentation (NYSE:KOP) | Seeking Alpha
Koppers Holdings Inc. 2019 Q3 - Results - Earnings Call Presentation (NYSE:KOP) | Seeking Alpha
Koppers Holdings buys Cox Industries for $200 million | Pittsburgh Post-Gazette
Koppers Holdings Stock: Signs Of Deterioration in Q3 Earnings (NYSE:KOP) | Seeking Alpha
Koppers Holdings Inc. - ResponsibilityReports.com
Is Koppers Holdings Inc.'s (NYSE:KOP) ROE Of 40% Impressive?
Koppers Holdings Inc. (NYSE:KOP) Seasonal Chart | Equity Clock
Koppers Holdings Inc. (NYSE:KOP) Seasonal Chart | Equity Clock
