Where is the Boeing China factory built?

Boeing established a joint venture in Tianjin as early as 200 1 to produce composite parts of Boeing aircraft, including cockpit interior, tail wing, leading edge, mailbox door and other interior parts, secondary structural parts and main load-bearing structural parts. It involves more than 737,747,767,787,777 models, and some parts are the only suppliers in the world. At present, Boeing holds 88% of the shares, and AVIC International holds 12%.