The agreement led to the number of Max 10s order included in the air show to as much as 320 which was more than expected while about half were conversions and fundamental new orders and commitments for Boeing was almost 160. Blue Air's fleet now includes 29 Boeing 737 aircraft.
Boeing Commercial Airplanes President and CEO Kevin McAllister said in a statement, "Airlines wanted a larger, better option in the large single-aisle segment with the operating advantages of the 737 MAX family".
The agreement will be reflected on the Boeing Orders and Deliveries website once finalized.
Blue Air also reserved the right to buy another two such aircraft under the newly signed contract.
Paris: Boeing won a key endorsement from United Airlines for the latest model of its best-selling 737 on Tuesday and struck an upbeat tone by raising its 20-year industry demand forecast despite signs the pace of growth is slowing.
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Barack Obama managing 46 percent of the vote here in 2008. "He is projecting himself as a Republican-lite instead of a Democrat". But he said there is no doubt that "this is one occasion when we ought to say he deserves to take a victory lap".
Boeing announced on Monday what it claims will be the most efficient jet yet in the highly competitive civil aviation market as it tries to claw back market share from rival Airbus. All four new Max customers join a group of 10 companies that helped launch the Max 10 at the show.
Prior to the lease and the new orders placed to Boeing, Blue Air operated a fleet of 25 Boeing 737 aircraft.
"The 737 MAX is the fastest-selling aircraft in Boeing's history, with more than 3,700 orders from 87 customers worldwide", said Blue Air representatives.
Boeing leads the race for net new orders at the air show.Industry watchers said the veteran Airbus sales chief could pull off a signature last-minute deal to avoid an unusual defeat at the European company's home event.
Xiamen Airlines is an existing 737 MAX customer and plans to use the new airplanes with their subsidiaries, including Hebei Airlines and Jiangxi Airlines.
How major US stock market indexes fared on Monday
Trading activity may be somewhat subdued, however, as a lack of major US economic data may keep some traders on the sidelines. The S&P 500 index showed 49 new 52-week highs and 10 new lows, while the Nasdaq recorded 99 new highs and 87 new lows.
Fortunes rise and fall at the Paris Air Show.
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China's Xiamen Airlines, in contrast, announced a potential piece of new business for Boeing, with a memorandum of understanding to order 10 737 MAX 10s in a deal that would be worth $1.2 billion at list prices.
"The 737 MAX 10 will be the most profitable single-aisle airplane offering the lowest seat costs ever, and will be a great complement to Malaysia Airlines' all single-aisle fleet of 737s as they continue to add capacity to their routes", he said.
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More than 100,000 events are to be held around the country to remember the life of Ms. People want a reason to be positive and look forward".