8-K//Current report
Koppers Holdings Inc. 8-K
Accession 0000950170-25-105486
$KOPCIK 0001315257operating
Filed
Aug 7, 8:00 PM ET
Accepted
Aug 8, 8:10 AM ET
Size
1.4 MB
Accession
0000950170-25-105486
Documents
- 8-Kkop-20250808.htmPrimary
8-K
- EX-99.1kop-ex99_1.htm
EX-99.1
- GRAPHICimg180885081_0.jpg
GRAPHIC
- EX-101.SCHkop-20250808.xsd
XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT
- XMLR1.htm
IDEA: XBRL DOCUMENT
- XMLShow.js
IDEA: XBRL DOCUMENT
- XMLreport.css
IDEA: XBRL DOCUMENT
- XMLFilingSummary.xml
IDEA: XBRL DOCUMENT
- JSONMetaLinks.json
IDEA: XBRL DOCUMENT
- ZIP0000950170-25-105486-xbrl.zip
IDEA: XBRL DOCUMENT
- XMLkop-20250808_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
- Aug 7, 8:00 PM ET
- Accepted
- Aug 8, 8:10 AM ET
- Size
- 1.4 MB