8-K//Current report
Koppers Holdings Inc. 8-K
Accession 0001315257-25-000010
$KOPCIK 0001315257operating
Filed
Nov 6, 7:00 PM ET
Accepted
Nov 7, 8:22 AM ET
Size
685.4 KB
Accession
0001315257-25-000010
Documents
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8-K
- EX-99.1a2025q38-kearningsrelease.htm
EX-99.1
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XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
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XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
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XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
- GRAPHICa1a.jpg
- XMLR1.htm
IDEA: XBRL DOCUMENT
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IDEA: XBRL DOCUMENT
- XMLreport.css
IDEA: XBRL DOCUMENT
- XMLFilingSummary.xml
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- JSONMetaLinks.json
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- ZIP0001315257-25-000010-xbrl.zip
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- XMLkop-20251107_htm.xml
IDEA: XBRL DOCUMENT
Issuer
Koppers Holdings Inc.
CIK 0001315257
Entity typeoperating
IncorporatedPA
Related Parties
1- filerCIK 0001315257
Filing Metadata
- Form type
- 8-K
- Filed
- Nov 6, 7:00 PM ET
- Accepted
- Nov 7, 8:22 AM ET
- Size
- 685.4 KB