On May 7, 2023, Suresh Sundaram, a member of the board of directors of GSE Systems, Inc. informed the Company that he plans to resign from the Board immediately following the 2023 Annual Meeting of Stockholders of the Company (the “Annual Meeting”). The Annual Meeting is currently scheduled for June 12, 2023. Dr. Sundaram has served on the Board since August 2016.

During that time, Dr. Sundaram served as a member of the Board's Audit, Compensation and Nominating and Governance Committees, including serving as the Chair of the Compensation Committee. Dr. Sundaram's departure is not due to a disagreement with the Company, the Board or management on any matter relating to the Company's operations, policies or practices. The Company is grateful for Dr. Sundaram's leadership and service on the Board.

The Company has no immediate plans to fill the vacancy on the Board of Directors that will be created by Dr. Sundaram's departure.