ACM Research | SC 13D/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-Shanghai Pudong Science and Technology Investment Group Co., Ltd.(5.8%),Shanghai Science and Technology Venture Capital (Group) Co., Ltd.(4.1%)

ACM Research | SC 13D/A：超過5%持股股東披露文件(修正)-Shanghai Pudong Science and Technology Investment Group Co., Ltd.(5.8%),Shanghai Science and Technology Venture Capital (Group) Co., Ltd.(4.1%)