Energy Recovery, Inc. (Nasdaq:ERII) is announcing that David Moon, President and Chief Executive Officer of the Company, has notified the Board of Directors (the "Board") of his intention to retire following the appointment of his replacement. Mr. Moon will remain as President and Chief Executive Officer until a successor is appointed and has committed to support the Company in an advisory capacity during the transition period for as long as is deemed necessary by the Board. The Company has begun a search for Mr. Moon's successor.

• The Company is also announcing that Mike Mancini has resigned as Chief Financial Officer, effective today, to pursue a new professional opportunity. Aidan Ryan, current VP of Finance who joined in 2024, has been named Interim Chief Financial Officer. Please refer to the Company's letter to shareholders and Form 8-K for additional information.
• The Board has authorized a new share repurchase plan to purchase up to $25.0 million of common stock over the next 12 months. Since November 2024, the Company has now announced $130.0 million of aggregate share repurchase authorizations.