Xiamen Airlines has signed a $2.05 billion memorandum of understanding with CFM International, covering installed and spare engines.
The deal also includes a long-term time and materials support agreement. The engine-maker says no further details of the deal are available.
This brings the total value of agreements signed in China, in conjunction with French president Emmanuel Macron's state visit to the country, to $9.1 billion at list prices.
Other deals signed include Spring Airlines' finalised order for 120 Leap-1A engines to power its incoming fleet of 60 Airbus A320neos.
Together with a 10-year flight hour service agreement, the deal is worth $2.9 billion.
Hainan Airlines also signed an MoU, valued at $4.2 billion, for the purchase of Leap-1A engines to power 55 A320neos. Part of the deal includes long-term support of the engines for Hainan Airlines and a number of other HNA Group carriers.
The agreements for new engine orders and long-term support covers close to 500 CFM engines.
"These new agreements strengthen our commitment to China and solidifies our relationships with our customers here, providing a strong foundation for even more cooperation in the future," says CFM parent Safran's CEO Philippe Petitcolin.