152 results
Page 2 of 8
8-K
EX-99.1
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6 May 22
Koppers Reports First Quarter 2022 Results
8:30am
8-K
EX-99.2
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23 Feb 22
Koppers Reports Fourth Quarter and Full-Year 2021 Results; Provides 2022 Outlook
7:55am
8-K
EX-99.1
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23 Feb 22
Koppers Reports Fourth Quarter and Full-Year 2021 Results; Provides 2022 Outlook
7:55am
8-K
EX-99.1
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4 Nov 21
Koppers Holdings Inc. Reports Third Quarter 2021 Results
8:44am
8-K
EX-99.1
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6 Aug 21
Koppers Holdings Inc. Reports Second Quarter 2021 Results
8:38am
8-K
EX-99.1
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6 Aug 21
Koppers Announces Planned Leadership Succession
8:37am
8-K
EX-99.1
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7 May 21
Koppers Holdings Inc. Reports Record-First Quarter 2021 Results
10:40am
8-K
EX-99.1
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24 Feb 21
Koppers Holdings Inc. Reports Fourth Quarter and Full-Year 2020 Results; Provides 2021 Outlook
8:33am
8-K
EX-99.1
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28 Jan 21
Koppers Holdings Inc. Provides Update on Fourth Quarter and 2020 Business Segment Performance
8:32am
8-K
EX-99.1
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17 Dec 20
Koppers Holdings Inc. Provides November 2020 Business Update; Reaffirms 2020 Outlook
8:50am
8-K
EX-99.1
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19 Nov 20
Koppers Holdings Inc. Provides October 2020 Business Update; Reaffirms 2020 Outlook
8:34am
8-K
EX-99.1
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4 Nov 20
Koppers Holdings Inc. Reports Third Quarter 2020 Results; Reaffirms 2020 Outlook
8:27am
8-K
EX-99.1
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26 Oct 20
Koppers Holdings Inc. Reports Preliminary Third Quarter 2020 Results; Increases 2020 Outlook
8:31am
8-K
EX-99.1
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30 Sep 20
Koppers Holdings Inc. Announces Completion of KJCC Sale
7:54am