Form 8-K - Current report:
SEC Accession No. 0000950170-24-052494
Filing Date
2024-05-03
Accepted
2024-05-03 08:26:32
Documents
14
Period of Report
2024-05-02
Items
Item 2.02: Results of Operations and Financial Condition
Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
Item 5.07: Submission of Matters to a Vote of Security Holders
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K kop-20240502.htm   iXBRL 8-K 68642
2 EX-3.1 kop-ex3_1.htm EX-3.1 6056
3 EX-99.1 kop-ex99_1.htm EX-99.1 405430
4 GRAPHIC img180885081_0.jpg GRAPHIC 16346
  Complete submission text file 0000950170-24-052494.txt   648652

Data Files

Seq Description Document Type Size
5 XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT kop-20240502.xsd EX-101.SCH 25987
17 EXTRACTED XBRL INSTANCE DOCUMENT kop-20240502_htm.xml XML 4899
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.: 24910887
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)