Item 8.01. Other Events.

The shares of our operating subsidiary ACM Research (Shanghai), Inc. are listed on the Shanghai Stock Exchange's, or the SSE's, Sci-Tech innovAtion board, or the STAR Market. In accordance with the SSE's rules governing the STAR Market, ACM Research (Shanghai), Inc. filed with the SSE a Record of December 2021 Investor Relation Activity, or the Record. The SSE posted the Record to the SSE's website on January 6, 2022. A copy of the Record is included as exhibit 99.01 to this report.

Item 9.01. Financial Statements and Exhibits.





(d)   Exhibits.

 Exhibit                                    Description
  99.01*      Record of December 2021 Investor Relation Activity filed by ACM
              Research (Shanghai), Inc. with the Shanghai Stock Exchange on January
              6, 2022
   104        Cover Page Interactive Data File (embedded within the XBRL document)

* Unofficial English translation of original document prepared in Mandarin Chinese.



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