China restricts exports of high-tech metals in a slap at Washington ahead of Treasury Secretary Janet Yellen's visit to Beijing
China has imposed export curbs on two metals used in computer chips and solar cells, expanding a squabble with Washington over high-tech trade ahead of Treasury Secretary Janet Yellen's visit to Beijing this week.
Chinese leader Xi Jinping's government is frustrated by U.S. Curbs on access to advanced processor chips and other technology on security grounds. Image Courtesy: Reuters.