ACM Research, Inc. entered into an agreement to acquire remaining 18.36% stake in ACM Research (Shanghai), Inc from Shanghai Pudong High-Tech Investment Co., Ltd and Shanghai Pudong High-Tech Investment Co., Ltd for $14.3 million on August 31, 2017. As per the terms of agreement ACM Research, Inc. will issue 1.9 million shares of Class A common stock.

ACM Research, Inc. completed the acquisition of remaining 18.36% stake in ACM Research (Shanghai), Inc from Shanghai Pudong High-Tech Investment Co., Ltd and Shanghai Pudong High-Tech Investment Co., Ltd on November 8, 2017.