** Shares of semiconductor equipment maker ACM Research ACMR.O rise 3.18% to $41.26 premarket
** Intel INTC.O tested chipmaking tools from ACMR, Reuters reports
** Tools evaluated for use in Intel's advanced chipmaking process, report says
** ACMR has units sanctioned by U.S. over alleged ties to China's military
** ACMR says U.S. operations are isolated from Shanghai unit and denies posing national security risk
** Stock more than doubled YTD, as of last close
(Reporting by Tharuniyaa Lakshmi in Bengaluru)
((tharuniyaa@thomsonreuters.com))