China's trade surplus with the US in 2018 was the highest on record
That is going back to 2006, Reuters with the calculation
As said earlier, some of this will be front loading of exports.
Some will be due to the drop in soy imports from the US also (across all imports from the US in 2018, down 2.3% (yuan terms) up 0.7% in USD terms
- exports to the US +8.6% (in yuan) +11.3% (in USD)