China's national airline, Air China, is to buy 60 Boeing 737 aircraft in a deal worth more than 6 billion USD at list prices.
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The aircraft will be delivered between 2016 and 2020, according to a regulatory filing by the airline.
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The deal includes Boeing's "next generation" 737 and 737 MAX aircraft, known for their fuel efficiency.
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In October, rival Airbus announced plans to open a second manufacturing plant in China in an attempt to boost sales of its A330 jetliner in the world's fastest growing aviation market.
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Boeing, meanwhile, said in September that China would need more than 6,000 aircraft in the next 20 years as the leisure travel market booms in the world's second largest economy.Â