Clean Energy’s South Fork Dairy RNG Facility, Dimmit, Texas.

Clean Energy Fuels Corp. (Nasdaq: CLNE) announced that it has completed the sale of $30.7 million in federal tax credits generated by seven of its renewable natural gas (RNG) production facilities. The sale marks Clean Energy's fourth successful transaction monetizing credits from its RNG projects.

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Clean Energy’s South Fork Dairy Renewable Natural Gas (RNG) Facility, Dimmit, Texas.

The largest credit in the transaction is the $26 million investment tax credit (ITC) tied to South Fork Dairy, Clean Energy's RNG facility in Dimmit, Texas, which began producing RNG in 2025.

In addition to the ITC from South Fork Dairy, the transaction also included all the 2025 Section 45Z clean fuel production credits from Clean Energy's portfolio of dairy RNG projects. The credits were generated by seven facilities across Texas, South Dakota, Iowa and Minnesota, including projects held through Clean Energy’s joint ventures with bp and TotalEnergies.

In 2025, these projects collectively produced 2.7 million gallons of negative carbon-intensity RNG to fuel transportation fleets.

"This is our largest ITC sale to date and a strong result for our RNG business," said Will Flanagan, Vice President of Strategic Development at Clean Energy. "Successfully monetizing our full portfolio speaks to the value of these projects and the increasing demand for the environmental benefits they deliver."

About Clean Energy

Clean Energy Fuels Corp. is the country’s largest provider of the cleanest fuel for the transportation market. Our mission is to decarbonize transportation through the development and delivery of renewable natural gas (RNG), a sustainable fuel derived by capturing methane from organic waste. Clean Energy allows thousands of vehicles, from airport shuttles to city buses to waste and heavy-duty trucks, to reduce their amount of climate-harming greenhouse gas. We operate a vast network of fueling stations across the U.S. and Canada as well as RNG production facilities at dairy farms. Visit www.cleanenergyfuels.com and follow @ce_renewables on X and LinkedIn.

Forward-Looking Statements

This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended, that involve risks, uncertainties and assumptions, including without limitation the amounts and timing of renewable natural gas expected to be produced or consumed; the availability of environmental, tax, and other governmental regulations, programs, and incentives; and the environmental and other benefits of Clean Energy’s fuels. The forward-looking statements made herein speak only as of the date of this press release and, unless otherwise required by law, Clean Energy undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances. Additionally, the reports and other documents Clean Energy files with the SEC (available at www.sec.gov) contain risk factors, which may cause actual results to differ materially from the forward-looking statements contained in this news release.

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Clean Energy media contact:

Kimberly Fleer

1-949-437-1447

kimberly.fleer@cleanenergyfuels.com

Clean Energy investor contact:

Thomas Driscoll

1-949-437-1191

thomas.driscoll@cleanenergyfuels.com