secwatch.observer — SEC 8-K summary ====================================== Issuer: ACM Research, Inc. (ACMR) CIK: 0001680062 Form: 8-K Filed at: 2023-07-27T23:59:59+00:00 Accession: 0001140361-23-036521 Event type: other_material Sentiment: neutral Materiality: 0.50 Item codes: 4.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 ACM Research auditor Armanino LLP resigns; firm exiting public company audits ----------------------------------------------------------------------------- - Armanino LLP resigned as ACM Research's auditor effective upon engagement of new auditor or filing of Q3 2023 10-Q. - Resignation due to Armanino's decision to exit public company audit practice; no disagreements with ACM. - Armanino's 2022 opinion on ICFR was adverse due to material weaknesses; no disagreements on accounting matters. - Audit committee has initiated process to select and appoint a new independent auditor for FY2023. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000114036123036521/0001140361-23-036521-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1680062/000114036123036521/brhc20056458_8k.htm HTML page: https://secwatch.observer/filing/0001140361-23-036521 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer