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Filing Detail
Form 8-K - Current report:
SEC Accession No. 0000950170-23-009213
Filing Date
2023-03-22
Accepted
2023-03-22 16:41:06
Documents
14
Period of Report
2023-03-20
Items
Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K kop-20230320.htm   iXBRL 8-K 56234
2 EX-99.1 kop-ex99_1.htm EX-99 21866
3 GRAPHIC img180885081_0.jpg GRAPHIC 16346
  Complete submission text file 0000950170-23-009213.txt   221840

Data Files

Seq Description Document Type Size
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT kop-20230320_lab.xml EX-101.LAB 13474
5 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT kop-20230320.xsd EX-101.SCH 2463
6 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT kop-20230320_pre.xml EX-101.PRE 9897
8 EXTRACTED XBRL INSTANCE DOCUMENT kop-20230320_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)

IRS No.: 201878963 | State of Incorp.: PA | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-32737 | Film No.: 23753422
SIC: 2400 Lumber & Wood Products (No Furniture)