USPS said the change will not impact the flow of letters and 'flats' from China and Hong Kong. It did not immediately comment on whether this was tied to Trump's change to ending de minimis shipments.

The USPS halted an order to suspend incoming packages from China that threatened to severely disrupt trade between the two major economies.

Hong Kong’s post office has announced it would continue to suspend shipping items containing goods to the United States until further notice, despite its American counterpart having reversed its ban on packages from the city and other parts of China.