Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000950170-24-052678
Filing Date
2024-05-03
Accepted
2024-05-03 14:01:04
Documents
87
Period of Report
2024-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q kop-20240331.htm   iXBRL 10-Q 1502230
2 EX-3.1 kop-ex3_1.htm EX-3.1 233719
3 EX-31.1 kop-ex31_1.htm EX-31.1 13559
4 EX-31.2 kop-ex31_2.htm EX-31.2 13306
5 EX-32.1 kop-ex32_1.htm EX-32.1 9254
6 GRAPHIC img66989506_0.jpg GRAPHIC 4847
  Complete submission text file 0000950170-24-052678.txt   9326815

Data Files

Seq Description Document Type Size
7 XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT kop-20240331.xsd EX-101.SCH 1564601
91 EXTRACTED XBRL INSTANCE DOCUMENT kop-20240331_htm.xml XML 1642388
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: 10-Q | Act: 34 | File No.: 001-32737 | Film No.: 24912258
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)