| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 42 LONGWATER DRIVE, NORWELL | /s/ Robert Speights | 28 May 2025 | 0001756200 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CLH | Common Stock | Sale | $233,517 | -1,022 | -5.9% | $228.49 | 16,310 | 27 May 2025 | Direct |