Boeing on Wednesday announced that 9 Air has committed to 50 Boeing 737s, including Next-Generation 737s and 737 MAXs. The airline intends to introduce the world’s best-selling 737 family of airplanes into its fleet as it prepares to launch revenue service later this year.

“We are honored to welcome 9 Air as Boeing’s newest customer,” said Ihssane Mounir, vice president of Sales and Marketing for Northeast Asia, Boeing Commercial Airplanes, in a press release. “The success of Boeing’s market-leading 737 family of airplanes has proven to be a winning formula for low-cost carriers around the world. I am confident that this success will be replicated with 9 Air’s low-cost business model.”

The order will be posted as such to Boeing’s Orders & Deliveries website once all contingencies are cleared.

Based in Guangzhou, 9 Air is China’s newest low-cost airline and is also a subsidiary of Juneyao Airlines. With this commitment, 9 Air is poised to become another all-Boeing operator in China. The new low-cost carrier plans to launch domestic services to meet growing air traffic demand in China.