On April 19, 2018, Dr. Gary Kugler, a director, announced to Perma-Fix Environmental Services, Inc.'s Board of Directors that he is retiring, and, as a result, would not be standing for reelection as a director of the company at the company's next annual meeting of shareholders. Dr. Kugler will continue to serve as a director until the company's next annual meeting of shareholders. Larry Shelton, who is the Chairman of the Board, replaced Dr. Gary Kugler as an Audit Committee member. Mark Zwecker replaced Dr. Gary Kugler as a member of the Compensation and Stock Option Committee and Larry Shelton, who is an existing member, was appointed as the Chairman. Zach Wamp replaced Dr. Gary Kugler as a member of the Corporate Governance and Nominating Committee. The Research and Development Committee was dissolved effective immediately. All R&D activities will be managed and reviewed by senior management and oversight of these activities will be conducted by the Board as deemed necessary.