Imports rose 4.3% to 3.88 trillion yuan during this period, according to the data.
China is expected to release US dollar-denominated trade figures for September on Tuesday.
Analysts polled by Reuters forecast a 10% increase in exports and a 0.3% increase in imports for September from a year ago, in US dollars.
Global demand for Chinese medical supplies has helped boost exports in recent months. China was the first country to be hit by the coronavirus pandemic and has since become the first major economy to resume most business activities.
This is breaking news. Please come back for updates.
– CNBC’s Yen Nee Lee contributed to this report.