China's dollar-denominated exports rose 9.9 per cent in 2018, while imports increased 15.8 per cent last year, resulting in a trade surplus of $US351.76billion ($A487.67 billion), the lowest since 2013.
Yuan-denominated exports rose 7.1 per cent for the year, and imports 12.9 per cent.
The world's largest trading nation got off to a strong start in 2018, but pressure on the economy started to build later in the year as the United States and China began imposing tariffs on each other's goods and global demand started to cool.
The Chinese customs office is expected to release US dollar-denominated trade numbers for December later on Monday.
