Okay Airways has ordered six Boeing 737 MAX 8s and four 737-800s, valued at $980 million at current list prices. The deal was announced at the Farnborough Airshow.

The 737 MAX aircraft will be powered by CFM International’s LEAP-1B engine and the 737s will be powered by the CFM56-7B engine. The engine orders are valued at $250 million at current list prices. Deliveries are scheduled to begin in 2015.

Okay Airways, the first privately owned airline in China, also announced it will convert five 737-800s from a previous order into 737-900ERs. With Monday’s conversion announcement, Okay Airways will be the first airline in China to operate the 737-900ER; it has eight of the type on order.

“The 737 is the backbone of our fleet and has fueled our growth with its proven reliability and efficiency,” Okay Airways president Liu Weining said. “The addition of the new 737 MAX airplanes will help us explore new regional markets while strengthening our existing domestic routes.”

Okay Airways is headquartered in Beijing with its main hub at Tianjin Binhai International Airport. Its jetliner fleet includes 12 737-800s and one 737-300 freighter, which serves 40 domestic destinations.