Company: CLH
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0000822818-25-000011
Chunk: 27

Company: CLEAN HARBORS INC
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 27
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 involved compensation subject to the standing pre-approval for certain transactions under the Board's Related Party Transactions Policy discussed above.

Except as described above, there have been no other related party transactions required to be disclosed under Item 404(a) of Regulation S-K since January 1, 2024.

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### ADVISORY VOTE ON EXECUTIVE COMPENSATION
<div align='center'>(Proposal 2 on Proxy Form)</div>

In accordance with Section 14A of the Exchange Act, the Board is seeking a non-binding advisory vote from the Company’s shareholders to approve the compensation of the Company’s Named Executive Officers, as described under “Compensation Discussion and Analysis” and “Executive Compensation Tables” below in this proxy statement and other executive compensation disclosures in this proxy statement. Acting in response to the advisory vote taken by the Company’s shareholders at the 2023 annual meeting, the Company’s Board of Directors holds such “say-on-pay” advisory votes on an annual basis.

As discussed under “Compensation Discussion and Analysis” in this proxy statement, the Board's C&HC Committee, with assistance from its independent compensation consultant, has structured the Company’s compensation programs to emphasize pay-for-performance. The compensation opportunities provided to the Company’s Named Executive Officers, as well as the Company’s other executives, are highly dependent on the Company’s and the individual's performance, which in turn drives the enhancement of shareholder value. The C&HC Committee continues to emphasize responsible compensation arrangements designed to attract, motivate, reward, and retain executive talent required to achieve the Company’s corporate objectives and to align with the interests of the Company’s long-term shareholders.

Shareholders have the opportunity to vote for or against or to abstain from voting on the following non-binding resolution relating to executive compensation:

“Resolved, that the shareholders approve, on a non-binding, advisory basis, the compensation of the Company’s named executive officers, as disclosed pursuant to the compensation disclosure rules of the Securities and Exchange Commission, including the compensation discussion and analysis, the executive compensation tables, and other executive compensation disclosures in this proxy statement.”

In deciding how to vote on this proposal, shareholders are encouraged to consider the description of the C&HC Committee's executive compensation philosophy and decisions described below in this proxy statement under “Compensation Discussion and Analysis” and “Executive Compensation Tables,” as well as the following:

• All members of the C&HC Committee are independent directors. The C&HC Committee has established a thorough process for the review and approval