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

Company: CLEAN HARBORS INC
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 14
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 of the Board, reviews and, as applicable, approves information relating to sustainability, legislative, regulatory, and other relevant policies, practices, or performance measures for inclusion in the Company’s Sustainability Report and SEC filings with the applicable ESG reporting frameworks.

The Environmental, Health, and Safety Committee held four meetings during 2024.

#### Ad Hoc Cyber Committee
The primary responsibilities of the Ad Hoc Cyber Committee are to the identify, evaluate and monitor cyber-risk management concerns and determine how those concerns align with the Company’s risk profile. The Ad Hoc Cyber Committee identifies priorities and establishes cyber oversight criteria as part of good corporate governance. In connection with such determination, the Ad Hoc Cyber Committee considers issues relating to confidentiality, integrity, availability, and compliance with applicable legal and regulatory requirements and national institute standards and technology.

The Ad Hoc Cyber Committee held four meetings during 2024.

C&HC Committee Interlocks and Insider Participation

No person who served as a member of the Board's C&HC Committee during the last fiscal year (Ms. Quirk, Mr. Preston, Ms. States, Mr. Welch, and Mr. Willett) has (i) ever served as one of the officers or employees of the Company or any of its subsidiaries, or (ii) any relationship requiring disclosure under any paragraph of Item 404 of Regulation S-K promulgated under the Securities Act of 1933, as amended. None of the Company’s executive officers serves as a member of the board of directors or as a member of a compensation committee of any other company that has an executive officer serving as a member of the Company’s Board or the C&HC Committee.

#### Communications to the Independent Directors
Shareholders and other interested parties may communicate with the Board of Directors by mail or electronically. To communicate with independent members of the Company’s Board, correspondence should be addressed to the Lead Director, c/o Michael McDonald, General Counsel, Clean Harbors, Inc., 42 Longwater Drive, Norwell, MA 02061, or mcdonaldm@cleanharbors.com. Any such correspondence received will be opened by the office of the General Counsel for the sole purpose of determining whether the contents represent a message to the independent directors. Any communication that is not in the nature of advertising, promotion of a product or service, or patently offensive material, will be forwarded promptly to the Lead Director for distribution, as appropriate, to the other independent members of the Board.

#### Board Oversight of Risk Management
The Board has an