Korean stocks closed at their highest level in nearly four years Wednesday, as investors digested U.S. President Donald Trump's renewed tariff threats targeting copper, semiconductors and pharmaceuticals.

Donald Trump has revived his threat to hit major trading partners with steep “reciprocal” tariffs even as he granted a three-week reprieve for countries to negotiate trade deals with the US. The president on Monday sent letters to Japan and South Korea,

Stocks fell on Wall Street as the Trump administration stepped up pressure on trading partners to make deals before punishing tariffs imposed by the U.S. take effect. The S&P 500 lost 0.8% Monday.