Aemetis Biogas Receives CARB Approval for Seven RNG Pathways

Dairy Based Renewable Natural Gas from Seven Digesters Averages Negative 384 Carbon Intensity

Aemetis Receives CARB Approval for Seven Dairy Digesters Under LCFS

CUPERTINO, Calif., June 27, 2025 (GLOBE NEWSWIRE) -- Aemetis, Inc. (NASDAQ: AMTX), a renewable natural gas (RNG) and renewable fuels company, announced today that the California Air Resources Board (CARB) has approved provisional pathways under the Low Carbon Fuel Standard (LCFS) for seven dairy digesters built and operated by Aemetis Biogas, a subsidiary of the company. The pathway approvals are effective as of January 1, 2025. The average carbon intensity for the seven approved pathways is -384, with carbon intensities ranging from -327 to -419.

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"The approval of seven LCFS pathways increases the number of LCFS credits generated by these digesters by approximately 100%," stated Eric McAfee, Chairman and CEO of Aemetis. "With eleven operating digesters and a four-dairy cluster digester currently being completed, we have additional pathway filings in process that we expect will be approved more quickly than these initial pathways once the LCFS regulatory amendments are adopted this year."

With the LCFS first quarter reporting deadline of June 30, 2025, the January 1, 2025, effective date of the new pathways enables Aemetis to immediately obtain the increased LCFS credit quantity for its RNG produced in the first quarter of 2025.

Aemetis renewable energy and energy efficiency projects include the construction of new dairy digesters expected to generate more than 1 million MMBtu per year of renewable natural gas; the Keyes ethanol plant mechanical vapor recompression system that is expected to generate $32 million of increased annual cash flow starting in 2026; the Riverbank carbon sequestration project to inject 1.4 million tons per year of CO2 per year underground; and the 78 million gallon per year sustainable aviation fuel and renewable diesel plant that has already received Authority To Construct air permits and other key approvals.

About Aemetis

Headquartered in Cupertino, California, Aemetis is a renewable natural gas and renewable fuel company focused on the operation, acquisition, development, and commercialization of innovative technologies that replace petroleum products and reduce greenhouse gas emissions. Founded in 2006, Aemetis is operating and actively expanding a California biogas digester network and pipeline system to convert dairy waste gas into Renewable Natural Gas. Aemetis owns and operates a 65 million gallon per year ethanol production facility in California’s Central Valley near Modesto that supplies about 80 dairies with animal feed. Aemetis owns and operates an 80 million gallon per year production facility on the East Coast of India producing high quality distilled biodiesel and refined glycerin. Aemetis is developing a sustainable aviation fuel and renewable diesel fuel biorefinery in California that will use renewable hydrogen and hydroelectric power to produce low carbon intensity renewable jet and diesel fuel. For additional information about Aemetis, please visit www.aemetis.com.