President Donald Trump has paused imposing tariffs on small-value packages arriving from China, apparently to give federal agencies time to sort out how to process millions of such shipments that have come through the U.

In a confirmation hearing on Thursday, Trump's U.S. trade representative nominee Jamieson Greer said other countries will need to reduce barriers to U.S. exports if they want to maintain access to the U.S. market, citing Vietnam in particular.

The Trump administration has proposed a sweeping trade strategy, including 25% tariffs on Canada and Mexico, 10% on Chinese imports, and 10% on Canadian energy. While the Canada and Mexico tariffs have been temporarily delayed,