BEIJING, Jan. 10 -- China's exports rose 7.9 percent year on year to 2.21 trillion U.S. dollars in 2013, while imports increased 7.3 percent to 1.95 trillion U.S. dollars, customs data revealed on Friday.

Foreign trade surplus widened to 259.75 billion U.S. dollars in 2013, an increase of 12.8 percent from a year earlier.

Last year, the country's total exports and imports value surpassed the 4-trillion-U.S.-dollar-mark for the first time to reach 4.16 trillion U.S. dollars, an increase of 7.6 percent year on year.