Trump to restrict Chinese firms from US tech investments - WSJ

President Donald Trump is planning to bar many Chinese companies from investing in U.S. technology companies and restrict additional technology exports to China, according to Wall Street Journal (WSJ). 

The Treasury Department is drawing up rules to block companies with at least 25 percent Chinese ownership from buying companies involved in "industrially significant technology," the WSJ said, and the new measures could be announced by the end of the week. 

Also, plans are being drawn to block exports of "industrially significant technology" to China. 

The news seems to have pushed the S&P 500 futures down by 0.5 percent in Asia.