SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 8-K - Current report:
SEC Accession No. 0000950170-24-134339
Filing Date
2024-12-09
Accepted
2024-12-09 07:58:03
Documents
11
Period of Report
2024-12-05
Items
Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Document Format Files

Seq Description Document Type Size
1 8-K kop-20241205.htm   iXBRL 8-K 37602
  Complete submission text file 0000950170-24-134339.txt   150434

Data Files

Seq Description Document Type Size
2 XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT kop-20241205.xsd EX-101.SCH 25026
13 EXTRACTED XBRL INSTANCE DOCUMENT kop-20241205_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.: 241533879
SIC: 2400 Lumber & Wood Products (No Furniture)
(CF Office: 04 Manufacturing)