BUSINESS DIGEST
High-Technology Exports From China Create Tension China's high-technology industry finds itself treading on geopolitical fault lines these days as Chinese companies have become suppliers of advanced communications equipment to nations that Western companies avoid, or are barred from doing business with, including Iraq, Cuba, North Korea and, at least before Sept. 11, the Taliban leadership in Afghanistan. Industry analysts and United States trade officials say China has been responsive to efforts by the State Department to help the nation set up a system of export controls, which are crucial now that China has joined the World Trade Organization. [Page C2.]

