37 results
10-K
2023 FY
EX-21
CLH
Clean Harbors, Inc.
Annual report
21 Feb 24
11:39am
10-K
2022 FY
EX-21
CLH
Clean Harbors, Inc.
Annual report
1 Mar 23
11:17am
10-K
2021 FY
EX-21
CLH
Clean Harbors, Inc.
Annual report
23 Feb 22
10:46am
10-K
2020 FY
EX-21
CLH
Clean Harbors, Inc.
Annual report
24 Feb 21
10:58am
10-K
2019 FY
EX-21
CLH
Clean Harbors, Inc.
Annual report
26 Feb 20
10:56am
S-4
EX-21.1
opj0ez448rmzlg4u
15 Jul 11
Registration of securities issued in business combination transactions
12:00am