 New York, New York--Newsfile Corp. - January 20, 2021 - Pomerantz LLP announces that a class action lawsuit has been filed against ACM Research, Inc. ACM or the Company NASDAQ: ACMR and certain of its officers. The class action, filed in United States District Court for the Northern District of California, and docketed under 20-cv-09241, is on behalf of a class consisting of all persons and entities other than Defendants that purchased or... 