Commercial Aircraft Corporation of China, US plane maker to build a 737 aircraft assembly centre in China.
Brand hopes to almost double its US sales over the next few years.
The new car is part of a $384 million investment the automaker announced last spring.
President Bob King says the union is stepping back because the challenge could take years to come to a conclusion.
Achieved by electricity, natural gas cost cuts and an automated heating, ventilation system.
Aerospace giant will close California assembly plant.