And with Hong Kong thrown in, Chinese holdings of US bonds reached a record USD 1.44 trillion, up from USD 1.31 trillion a year earlier.
The creditor-debtor relationship of the world's two largest economies continued even as China hinted in October that it could slow its dollar accumulation due to the Washington political battle that had threatened a US default on its debt.
China has stepped up its warnings over the past year of the risks of huge US debt.
The US currency accounted for nearly 40 percent of China's total foreign reserves of $3.66 trillion at the end of the third quarter.
Japan remained the second-largest US creditor in October, holding USD 1.17 trillion in US debt, up from USD 1.13 trillion a year ago.