Aemetis, Inc. (NASDAQ: AMTX) announced it has received funds from the sale of $18 million in Section 45Z Clean Fuel Production Tax Credits, generating approximately $14.5 million in net cash proceeds after transaction costs.

The sales consist of $6 million in tax credits from 2025 ethanol production and $12 million from year-to-date 2026 ethanol and renewable natural gas (RNG) production. The 2026 credits were valued at approximately $0.33 per ethanol gallon and $15.20 per MMBtu of RNG.

According to the company, this marks its second and third Section 45Z credit transactions in the past six months. The credits were calculated under current Treasury guidance and the updated U.S. Department of Energy 45ZCF-GREET model released on June 12, 2026.

"These 45Z tax credit sales, our second and third transactions in the past six months, illustrate the value of Section 45Z Clean Fuel Production Tax Credits as a recurring contribution to cash flow for Aemetis operations," said Eric McAfee, Chairman and CEO of Aemetis.

The company noted that two pending agency updates to the 45ZCF model could affect future credit values: incorporation of a low-carbon feedstock calculator recently finalized by the U.S. Department of Agriculture, and a proposed update to separate RNG produced from dairy cows from other animal sources.

Aemetis operates a 65 million gallon per year ethanol facility in California's Central Valley and a biogas digester network that converts dairy waste into RNG.