Officials in Taiwan and South Korea say they don't expect Trump's 100% tariff on foreign chips to affect TSMC or Samsung, likely due to their factory investments in the US.

Trump threatens steep tariffs on imported chips, urging tech firms to shift production to the US, sparking global supply chain concerns.

President Donald Trump stunned markets Wednesday by announcing 100% tariffs on imported semiconductor chips — but major chip stocks rallied. Taiwanese chip giant TSMC's stock closed 4.9% higher. In South Korea, Samsung Electronics ended 2.5% higher while SK Hynix reversed losses of over 3% in early trade to close 1.4% up.