BEIJING -- General Motors Corp. said Monday its sales in China last month rose 77.7% from a year earlier to 144,593 units.

Sales in the January-July period rose 42.8% from the same period last year to 959,035 units, GM said in a statement. It didn't provide the year-earlier figures.

"This was GM China's best July ever, extending an uninterrupted series of single-month sales records that started in January 2009," GM said in the statement.

The U.S. auto maker makes vehicles in China with joint venture partners SAIC Motor Corp. and Wuling Automobile Co.