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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000950170-23-058640
Filing Date
2023-11-03
Accepted
2023-11-03 12:25:07
Documents
85
Period of Report
2023-09-30

Document Format Files

Seq Description Document Type Size
1 10-Q kop-20230930.htm   iXBRL 10-Q 3014691
2 EX-3.1 kop-ex3_1.htm EX-3.1 33177
3 EX-31.1 kop-ex31_1.htm EX-31.1 15306
4 EX-31.2 kop-ex31_2.htm EX-31.2 14951
5 EX-32.1 kop-ex32_1.htm EX-32.1 10533
6 GRAPHIC img66071750_0.jpg GRAPHIC 4847
  Complete submission text file 0000950170-23-058640.txt   14860683

Data Files

Seq Description Document Type Size
7 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT kop-20230930_lab.xml EX-101.LAB 586830
8 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT kop-20230930.xsd EX-101.SCH 72809
9 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT kop-20230930_def.xml EX-101.DEF 248676
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT kop-20230930_pre.xml EX-101.PRE 464791
11 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT kop-20230930_cal.xml EX-101.CAL 77730
79 EXTRACTED XBRL INSTANCE DOCUMENT kop-20230930_htm.xml XML 3975286
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)

IRS No.: 201878963 | State of Incorp.: PA | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-32737 | Film No.: 231375233
SIC: 2400 Lumber & Wood Products (No Furniture)