Item 8.01 Other Events. The shares of our operating subsidiary ACM Research (Shanghai), Inc. (“ACM Shanghai”) are listed on the Sci-Tech innovation board (the “STAR Market”) of the Shanghai Stock Exchange (the “SSE”). In accordance with the SSE’s rules governing the STAR Market, ACM Shanghai filed with the SSE a Record of May 2026 Investor Relations Activity (the “Record”). The SSE posted the Record to the SSE’s website on May 19, 2026. A copy of the Record is attached as Exhibit 99.1 hereto. The information in this Current Report on Form 8-K, including Exhibit 99.1, is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section, nor shall it be deemed to be incorporated by reference into any filing of ACM Research, Inc. under the Securities Act of 1933, as amended.
ACMR Acm Research, Inc. - 8-K
Accession
0001628280-26-0375528.019.01
Item 8.01 - Other Events
154 words
Item 9.01 - Financial Statements and Exhibits
57 words
Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit Description 99.1 * 104 Record of May 2026 Investor Relations Activity filed by ACM Research (Shanghai), Inc. with the Shanghai Stock Exchange on May 19, 2026 Cover Page Interactive Data File (embedded within the XBRL document) * Unofficial English translation of original document prepared in Mandarin Chinese. 2