Boeing and Air China have conducted China’s first sustainable biofuel flight. Lifting off from Beijing Capital International Airport, the Oct. 28 test flight lasted two hours and used a sustainable aviation biofuel sourced in China, Boeing said.

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Jatropha has been tested as a jet biofuel since 2008, when Air New Zealand flew the first test flight using a Boeing 747. Japan Air, Continental and Interjet have also tested jatropha-based biofuel in their planes.

The fuel was used in a Boeing 747-400 powered by Pratt & Whitney engines. Another partner, China National Aviation Fuel, blended the biofuel