Eaton Corp. and Shanghai Aircraft Manufacturing Co., Ltd. (SAMC), a subsidiary of Commercial Aircraft Corp. of China (COMAC), have signed a joint-venture agreement to support the COMAC C919 single-aisle commercial aircraft program. Formation of the joint venture, the first for the COMAC enterprise with a foreign company, is subject to regulatory approvals and customary closing conditions. The planned joint venture will be based in Shanghai and will focus on the design, development, manufacturing, and support of fuel and hydraulic conveyance systems for the global civil aviation market. Total program value for C919 conveyance systems, including aftermarket opportunities, is estimated at $1.8 billion, based on an anticipated volume of 2500 aircraft. This follows a joint-venture framework agreement signed by the two companies in December 2009. SAMC's stake in the JV will be 51%.