Exports rose 36.3% to $447.18 billion and imports climbed 31%, leaving a $133.5 billion monthly surplus. Chips are carrying the export boom, and the European Union is already moving to cap part of it.
China's trade surplus for the first nine months of the year reached $938 billion. Last year's full-year record was about $1.19 trillion. The gap, roughly $251 billion, is less than two months of what China earned in September alone.
The September numbers
Customs data released Wednesday showed exports up 36.3% from a year earlier, the fastest growth since February and well ahead of the roughly 25.5% economists had projected. Imports, forecast to rise about 24.5%, grew 31% instead, accelerating from 28.2% in August.
Subtracting the $133.5 billion surplus from $447.18 billion of exports puts September imports near $314 billion. The surplus was about $14 billion larger than in August.
What is driving it
Technology dominates. China's semiconductor exports are up 108.1% so far this year, and autos and other high-tech goods also contributed. Part of September's strength likely reflects timing: manufacturers shipped ahead of the Golden Week holiday at the start of October, which could pull some sales out of the following month.
The import side is harder to read. Faster import growth would normally point to stronger domestic demand, but China's growth slowed to 4.3% in the second quarter, the weakest in more than three years. Higher prices for fuel and raw materials may account for part of the larger import bill.
The pushback
Trading partners are responding. The European Union, which runs a deficit with China of more than $1.1 billion a day, reached a deal with Beijing last week that includes halving Chinese hybrid car imports, according to the EU's trade chief. Washington and Beijing extended their trade truce last month and cut tariffs on $30 billion of goods each way.
BNP Paribas Asset Management strategist Ecaterina Bigos sees the European push as the sharper threat. "While U.S.-China trade tensions have eased somewhat, the EU's push to rebalance directly targets high-value exports," she said.
Market implications
The case for a durable surplus is that China's export base has shifted toward products the world is short of. Chips and AI hardware are in demand regardless of tariffs, and a more-than-doubling in the value of semiconductor shipments this year gives the trade numbers a structural core.
The case for caution is concentration. A surplus that depends heavily on AI hardware is exposed to any slowdown in data center spending, the International Monetary Fund this week cut its 2026 growth forecast for China to 4.5%, and the EU's quota deal targets exactly the kind of high-value goods that have been growing fastest.
What to watch
October's trade data will separate trend from timing. If exports keep growing faster than 25% once the holiday pull-forward unwinds, the record could fall with November's data. A drop back toward August's 25% pace, with semiconductors still rising, would show how narrow the boom has become.