Form 8-K - Current report:
SEC Accession No. 0000950170-24-133737
Filing Date
2024-12-05
Accepted
2024-12-05 16:45:41
Documents
13
Period of Report
2024-12-05
Items
Item 2.05: Cost Associated with Exit or Disposal Activities
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K kop-20241205.htm   iXBRL 8-K 45011
2 EX-99.1 kop-ex99_1.htm EX-99.1 24688
3 GRAPHIC img180885081_0.jpg GRAPHIC 16346
  Complete submission text file 0000950170-24-133737.txt   213799

Data Files

Seq Description Document Type Size
4 XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT kop-20241205.xsd EX-101.SCH 25026
15 EXTRACTED XBRL INSTANCE DOCUMENT kop-20241205_htm.xml XML 4718
Mailing Address 436 SEVENTH AVENUE PITTSBURGH PA 15219
Business Address 436 SEVENTH AVENUE PITTSBURGH PA 15219 412-227-2001
Koppers Holdings Inc. (Filer) CIK: 0001315257 (see all company filings)

EIN.: 201878963 | State of Incorp.: PA | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-32737 | Film No.: 241529692
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)