<SEC-DOCUMENT>0001654954-18-004620-index.html : 20180501 <SEC-HEADER>0001654954-18-004620.hdr.sgml : 20180501 <ACCEPTANCE-DATETIME>20180501163557 ACCESSION NUMBER: 0001654954-18-004620 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 6 FILED AS OF DATE: 20180501 DATE AS OF CHANGE: 20180501 EFFECTIVENESS DATE: 20180501 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ACM Research, Inc. CENTRAL INDEX KEY: 0001680062 STANDARD INDUSTRIAL CLASSIFICATION: SPECIAL INDUSTRY MACHINERY, NEC [3559] IRS NUMBER: 000000000 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-38273 FILM NUMBER: 18796041 BUSINESS ADDRESS: STREET 1: 42307 OSGOOD ROAD, SUITE I CITY: FREMONT STATE: CA ZIP: 94539 BUSINESS PHONE: 510-445-3700 MAIL ADDRESS: STREET 1: 42307 OSGOOD ROAD, SUITE I CITY: FREMONT STATE: CA ZIP: 94539 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>acmresearchinc2018noticea.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: acmresearchinc2018noticea.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>acmresearchinc2018noticea000.jpg <DESCRIPTION>IMAGE <TEXT> Document 2 - file: acmresearchinc2018noticea000.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>acmresearchinc2018noticea001.jpg <DESCRIPTION>IMAGE <TEXT> Document 3 - file: acmresearchinc2018noticea001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>acmresearchinc2018noticea002.jpg <DESCRIPTION>IMAGE <TEXT> Document 4 - file: acmresearchinc2018noticea002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>acmresearchinc2018noticea003.jpg <DESCRIPTION>IMAGE <TEXT> Document 5 - file: acmresearchinc2018noticea003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>acmresearchinc2018noticea004.jpg <DESCRIPTION>IMAGE <TEXT> Document 6 - file: acmresearchinc2018noticea004.jpg
</DOCUMENT> </SEC-DOCUMENT>