SK Hynix, Samsung shares tumble after US revokes China licenses
Technology Tech sell-off spreads to Japan after American market jitters The U.S. Department of Commerce plans to remove Samsung Electronics and SK Hynix from its list of so-called validated end-user authorizations, forcing them to apply for an approval every time they transfer U.S. commodities, software or technology to their Chinese operations. (Source photos by Reuters) KIM JAEWON and…