Acquisition Expected to Help BAF Speed Production and Delivery of EPA
And CARB Standards-Compliant CNG Vehicle Conversions —
Dallas, Texas (June 12, 2012) — BAF Technologies, a wholly owned subsidiary of Clean Energy Fuels Corp. (Nasdaq: CLNE), today announced the acquisition of Belleville, Michigan-based ServoTech Engineering, Inc., an auto emissions solutions provider. BAF, the leading U.S. provider of natural gas vehicle systems and conversions, recently produced its 20,000th compressed natural gas (CNG) vehicle conversion. BAF is the first CNG converter to be recognized as a Ford Qualified Vehicle Modifier (QVM) for gaseous fuels.

BAF President John Bacon said, “ServoTech’s long-term relationship with Ford will support BAF in developing calibrations more efficiently going forward. We expect this will enable BAF to have CARB-and EPA-approved vehicles on the road faster than ever.”

Dr Hamid Servati, ServoTech’s current president, will continue to lead the new BAF subsidiary’s operations. As a Ford Qualified Calibration Modifier (QCM), ServoTech has direct access to the Ford engine calibration strategy. Each vehicle converted by BAF is registered through Ford Quality Fleet Care (QFC) for all warranty and service work.

“This makes BAF the only natural gas vehicle QVM with this level of access,” Bacon said. “Currently, BAF has nine different engine families that were developed with ServoTech.”

In addition, BAF crash tests all of its light-duty vehicle products to achieve FMVSS-303 compliance. It has a network of 65 Ford dealers across the country certified to service the company’s CNG conversions.

Since 1987, ServoTech has provided auto emission solutions to the OEM and vehicle retrofit/aftermarket industry, helping manufacturers and vehicle converters comply with
emission reduction goals and standards. The company offers research, development and testing services, manufacturing capabilities, software design and development, engine management systems and technical training and education.

In addition, ServoTech designs and manufactures emissions control systems for engine test cells, including a NOx controller, catalytic converters, and electronic controls.

Currently priced up to $1.50 or more per gallon lower than diesel or gasoline (depending upon local markets), the use of natural gas fuels reduces greenhouse gas emissions up to 30% in light-duty vehicles. The U.S. Department of Energy reports that 98% of the natural gas consumed in the U.S. is sourced in the U.S. and Canada, making natural gas a secure North American energy choice.

BAF Technologies is the leading provider of natural gas vehicle systems in the United States and supports clients with alternative fuel systems. Founded in 1992 and headquartered in Dallas, Texas, BAF was acquired by Clean Energy in October 2009. BAF’s alternative fuel vehicle up-fitting capabilities include aftermarket compressed natural gas (CNG) conversions of Ford-manufactured vans, cutaway shuttles, taxis, pick-ups and light-duty trucks. Visit www.BAFtechnologies.com

Clean Energy (Nasdaq: CLNE) is the largest provider of natural gas fuel for transportation in North America and a global leader in the expanding natural gas vehicle fueling market. We have operations in compressed natural gas and liquefied natural gas (LNG) vehicle fueling; construction and operation of natural gas fueling stations; compressor equipment and technology; biomethane production; and vehicle conversion. We fuel over 530 fleet customers and 25,000 vehicles daily at more than 273 strategic locations across the country with a broad customer base in the refuse, transit, trucking, shuttle, taxi, airport and municipal fleet markets.

We are building America’s Natural Gas Highway™, a network of LNG truck fueling stations connecting major freight trucking corridors across the country for coast-to-coast and border-to-border natural gas truck fueling

IMW Industries, Ltd., a wholly owned subsidiary, is a global supplier of compressed natural gas equipment for vehicle fueling and industrial applications with more than 1,400 installations in 26 countries. NorthStar, a wholly owned subsidiary, is the recognized leader in LNG/LCNG (liquefied to compressed natural gas) fueling system technologies and equipment, station construction and operations. It has built approximately 70% of the LNG fueling stations in the United States. BAF Technologies, Inc., a wholly owned subsidiary, is a leading provider of natural gas vehicle systems and conversions, including taxis, vans, pick-up trucks and shuttle buses. It has converted 20,000 vehicles. With a full line of Ford fleet vehicles, BAF is the first gaseous Qualified Vehicle Modifier (QVM) designated by Ford Motor Company. Clean Energy Renewable Fuels (CERF), a wholly owned subsidiary, is developing renewable natural gas (RNG) or biomethane production facilities in the United States. CERF owns (70%) and operates a landfill gas facility in Dallas, Texas that produces RNG for delivery in the nation’s gas pipeline network for power generation and transportation fuel. CERF is building a second facility in Canton, Michigan. We own and operate LNG production plants in Willis, Texas and Boron, California with combined capacity of 260,000 LNG gallons per day and that are designed to expand to 340,000 LNG gallons per day as demand increases. For more information, visit www.cleanenergyfuels.com

Forward-Looking Statements — This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 that involve risks, uncertainties and assumptions, including statements about BAF’s ability to have CARB-and EPA-approved vehicles on the road faster than ever. Actual results and the timing of events could differ materially from those anticipated in these forward-looking statements as a result of several factors, including, but not limited to changes in the process to obtain CARB and EPA approval. The forward-looking statements made herein speak only as of the date of this press release and, unless otherwise required by law, the company undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances. Additionally, the reports and other documents the Company 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.