Boeing (BA.US) stock rose 5% after United Airlines (UAL.US) unveiled plans to buy 25 more Boeing 737 Max jets, to bring its total Max order to 180. United also plans to have 45 737 Max aircraft deliveries moved up. This decision is seen as a vote of confidence in the planes that were grounded for 20 months after two crashes. Aviation regulators from the U.S., Canada, Brazil and the EU have approved the 737 Max for service again. However China's aviation regulator said on Monday its major safety concerns with the Boeing Co 737 MAX had to be "properly addressed" before conducting flight tests but it was studying a plan with U.S. planemaker for clearing aircraft to fly. China is a major market for Boeing. The company expects the country will need 8,600 new aircraft worth $1.4 trillion over the next two decades.
