Supporters say the change is important to stop cheap Chinese goods from entering the U.S. But the decision could drive up prices for goods Americans buy online.

Small-value packages shipped to the US from China will no longer be exempted from tariffs starting Friday, when President Donald Trump’s move against an exception he called a “big scam” takes effect.

Asian markets are higher after China's Commerce Ministry said Beijing is evaluating overtures from the U.S. regarding President Donald Trump's tariffs.

Tariffs on China will remain at their current levels, according to Stephen Miran, a key architect of President Donald Trump’s trade policies. Miran’s comments come at a time when the administration is trying to calm nervous investors but offering mixed signals.

President Trump on Wednesday dismissed concerns about bare store shelves as he spoke about his trade approach with China.