164 results
8-K
EX-99.1
KOP
Koppers Holdings Inc
3 May 24
Koppers Reports First Quarter 2024 Results; Provides Updated 2024 Outlook
8:26am
slowdown in project spend driven by the expectation of a higher interest rate environment persisting for a longer period of time, are expected to offset
8-K
EX-10.1
KOP
Koppers Holdings Inc
15 Apr 24
Entry into a Material Definitive Agreement
8:06am
Governmental Authority, in each instance relating to the protection of the environment, including with respect to the preservation or reclamation … , dispersal, leaching or migration into or through the environment (including ambient air, surface water, groundwater, land surface or subsurface strata
8-K
EX-99.1
dip s4tdr
28 Feb 24
Koppers Reports Fourth Quarter and Full-Year 2023 Results; Provides 2024 Outlook
8:17am
8-K
EX-99.1
go40ftv pbvfqsnfh
3 Nov 23
Koppers Reports Third Quarter 2023 Results; Reaffirms 2023 Outlook
8:21am
8-K
EX-10.1
ctienv0a4yk8men
12 Oct 23
Koppers Announces Successful Completion of Term Loan B Repricing
8:46am
8-K
EX-99.1
684fm1v
3 Aug 23
Koppers Reports Second Quarter 2023 Results; Reaffirms 2023 Outlook
8:27am
8-K
EX-99.1
54v5zt1rc5pv
5 May 23
Koppers Reports First Quarter 2023 Results; Reaffirms 2023 Outlook
8:40am
CORRESP
por 9c6xbaho
25 Apr 23
Correspondence with SEC
12:00am
8-K
EX-10.1
wh7cj4
11 Apr 23
Entry into a Material Definitive Agreement
4:45pm
UPLOAD
iwmdt7w9yauf
11 Apr 23
Letter from SEC
12:00am
8-K
EX-99.1
lvgy gpp6t11p
4 Nov 22
Koppers Reports Third Quarter 2022 Results
8:51am