China Southern Airlines has agreed to buy 10 Boeing 777-300ERs, "as the airline plans to expand its capacity to meet growing demand in Asia-Pacific and China," Boeing said in a statement.
Boeing said it would work the airline to obtain the required approval from the Chinese government for the purchase.
"We're very pleased that China Southern, which has been a staunch 777 supporter from the very beginning of the program, has once again selected the 777-300ER to serve its passengers and to deliver value to its bottom line," said Ihssane Mounir, vice president of sales at Boeing Commercial Airplanes.
The plane ordered is an extended-range version of the twin-engine 777.
Boeing did not reveal the value of the sale; aircraft are typically sold at a discount from the list price.