Company: CLH
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0000822818-25-000011
Chunk: 17

Company: CLEAN HARBORS INC
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 17
---
 who were then serving as directors also attended the 2024 annual meeting of shareholders in person. While we do not have a formal policy, it has been longstanding practice that all directors attend the annual meeting of shareholders unless there are unavoidable schedule conflicts or unforeseen circumstances.

The Board is currently composed of 13 directors classified into three classes. There are currently four Class I directors, four Class II directors, and five Class III directors. One class of directors is elected each year for a term of three years. The term of the current Class III directors, Michael L. Battles, Eric W. Gerstenberg, Andrea Robertson, Lauren C. States, and Robert J. Willett, will expire at the 2025 annual meeting and the Board has nominated all of the five current Class

<div align='center'>9</div>

III directors to stand for re-election as Class III directors at the 2025 annual meeting, each to serve for a term of three years until the 2028 annual meeting of shareholders and until their respective successors are duly elected and qualified or their earlier resignation or removal.

#### Board Matrix
The following matrix provides information regarding the 13 current members of the Board, including certain types of knowledge, skills, experiences, and attributes possessed by one or more of the directors which the Board believes are relevant to our business and corporate structure. The matrix does not encompass all of the knowledge, skills, experiences, or attributes of our directors, and the fact that a particular knowledge, skill, experience, or attribute is not listed does not mean that a director does not possess it. In addition, the absence of a particular knowledge, skill, experience, or attribute with respect to any of the directors does not mean the director in question is unable to contribute to the decision-making process in that area. The type and degree of knowledge, skill, and experience listed below may vary among the members of the Board.

As more fully described above under “Board of Directors and Corporate Governance - Board Committees,” the Board's Corporate Governance and Sustainability Committee, which is composed solely of independent directors, is responsible for selecting nominees to recommend to the full Board for election as directors. In that capacity, the Corporate Governance and Sustainability Committee and the full Board determine on an annual basis the appropriate characteristics, skills, and experience for the Board as a whole and for its individual members. While the Corporate Governance and Sustainability Committee and the full Board do not have any formal policy with regard to gender or racial diversity, the Corporate Governance and Sustainability Committee and the full Board believe that