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Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000950170-23-018172
Filing Date
2023-05-05
Accepted
2023-05-05 11:55:53
Documents
92
Period of Report
2023-03-31

Document Format Files

Seq Description Document Type Size
1 10-Q kop-20230331.htm   iXBRL 10-Q 2643238
2 EX-31.1 kop-ex31_1.htm EX-31 17948
3 EX-31.2 kop-ex31_2.htm EX-31 17501
4 EX-32.1 kop-ex32_1.htm EX-32 13064
5 GRAPHIC img66065985_0.jpg GRAPHIC 4847
  Complete submission text file 0000950170-23-018172.txt   13577690

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT kop-20230331_cal.xml EX-101.CAL 75941
7 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT kop-20230331_pre.xml EX-101.PRE 451800
8 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT kop-20230331.xsd EX-101.SCH 69919
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT kop-20230331_lab.xml EX-101.LAB 576556
10 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT kop-20230331_def.xml EX-101.DEF 242127
86 EXTRACTED XBRL INSTANCE DOCUMENT kop-20230331_htm.xml XML 3553748
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.: 23892254
SIC: 2400 Lumber & Wood Products (No Furniture)