New U.S. restrictions on 33 Chinese firms and institutions take effect June 5

WASHINGTON/NEW YORK (Reuters) - The U.S Commerce Department said on Wednesday that new restrictions on 33 Chinese firms and institutions it announced last month will take effect Friday.The agency has added the companies and institutions to an economic blacklist, accusing them of helping China spy on its minority Muslim Uighur population in Xinjiang or because of alleged ties to weapons of mass destruction and China's military.China's foreign ministry said last month it deplored and firmly..