Boeing and Commercial Aircraft Corp. of China (COMAC) opened a demonstration facility in October 2014 that will turn waste cooking oil, commonly referred to as "gutter oil" in China, into sustainable aviation biofuel. The two companies estimate that 500 million gallons (1.8 billion liters) of biofuel could be made annually in China from used cooking oil. Boeing and COMAC are sponsoring the facility, which is called the China-U.S. Aviation Biofuel Pilot Project. It will use a technology developed by Hangzhou Energy & Engineering Technology Co., Ltd. (HEET) to clean contaminants from waste oils and convert it into jet fuel at a rate of 170 gallons (650 liters) per day. The project's goal is to assess the technical feasibility and cost of producing higher volumes of biofuel.

Boeing and COMAC have been collaborating since 2012 to support the growth of China's commercial aviation industry. Their Boeing-COMAC Aviation Energy Conservation and Emissions Reductions Technology Center in Beijing works with Chinese universities and research institutions to expand knowledge in areas that improve aviation's efficiency, such as aviation biofuel and air traffic management.

Biofuel produced by the China-U.S. Aviation Biofuel Pilot Project will meet international specifications approved in 2011 for jet fuel made from plant oils and animal fats.