(Reuters) - Investor worries about a trade war between the United States and China ratcheted up on Wednesday, leaving a number of large U.S. companies potentially in the crosshairs of a dispute because of their business with China.
The tariffs on steel and aluminum imports proposed on March 1 and signed into law by U.S. President Donald Trump on March 8 have sparked concerns of a global trade war and frayed investors' nerves.
Trump will likely announce tariffs on Chinese imports by Friday, a source in the administration said, as the top U.S. trade diplomat told lawmakers he had the tools to strike back over Chinese theft of U.S. technology know-how.
A report in the Wall Street Journal said China was planning counter-measures against U.S. tariffs.