Clean Energy Fuels Corp. produces and distributes renewable natural gas (RNG) primarily for the transportation industry in North America. The company generates RNG from organic waste at dairy farms and operates an extensive network of over 600 fueling stations, serving approximately 50,000 heavy-duty trucks, buses, and large vehicles. Clean Energy's business model focuses on providing an affordable, low-emission alternative to diesel, contributing to decarbonization efforts in the transportation sector.