Gevo, Inc. announced that in conjunction with the appointment of Mr. Agiri, on May 21, 2025, L. Lynn Smull stepped down as Chief Financial Officer of the Company. Mr. Smull will continue service with the Company as Executive Vice President and Senior Advisor to the Chief Executive Officer. In connection with Mr. Smull?s transition to his new role, Mr. Smull will continue to receive the same compensation as he did in his role as Chief Financial Officer as described in the Proxy Statement.

Following the Annual Meeting, on May 21, 2025, the Board of Directors of the Company (the ?Board?) approved an increase in the size of the Board to nine directors, and appointed James J. Barber, Ph.D. to the Board as a Class II director, with a current term that will expire at the annual meeting of stockholders to be held in 2027. The Board also appointed Dr. Barber to serve on the Audit Committee of the Board. Dr. Barber is an experienced executive officer and board member of both public and private companies.

Dr. Barber currently serves as on the board of directors of Graham Corporation, a public company in the business of designing and manufacturing fluid, power, heat transfer, and vacuum technologies for the defense, space, energy, and process industries. Dr. Barber is Chair of GHM?s Compensation Committee and serves as a member of GHM?s Audit and Nomination and Governance, Committees. Over the last 20 years, he has served on the board of directors of a variety of other public and private companies.

Dr. Barber received his B.S. in Chemistry from Rensselaer Polytechnic Institute and a Ph.D. in Organic Chemistry from the Massachusetts Institute of Technology. Dr. Barber?s brings to the Board a breadth of experience across fuels, chemicals, biobased materials, micro-optics, carbon nanofibers, utilities, joint ventures and licensing.