May 14, 2026 Bryon T. McGregor Chief Executive Officer Alto Ingredients, Inc. 1300 South Second Street Pekin, IL 61554 Re: Alto Ingredients, Inc. Registration Statement on Form S-3 Filed May 08, 2026 File No. 333-295723 Dear Bryon T. McGregor: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Juan Grana at 202-551-6034 with any questions. Sincerely, Division of Corporation Finance Office of Industrial Applications and Services cc: Larry A. Cerutti, Esq.