secwatch.observer — SEC 8-K summary ====================================== Issuer: ACM Research, Inc. (ACMR) CIK: 0001680062 Form: 8-K Filed at: 2023-09-26T23:59:59+00:00 Accession: 0001140361-23-045244 Event type: other_material Sentiment: neutral Materiality: 0.50 Item codes: 4.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 ACM Research appoints Ernst & Young as new independent auditor for FY 2023 -------------------------------------------------------------------------- - Audit Committee selected E&Y as independent auditor for fiscal year ending Dec 31, 2023, effective Sept 20, 2023. - Prior auditor Armanino resigned effective Sept 20 due to its decision to exit public-company audit practice. - No disagreements or reportable events with Armanino during FY2022, FY2021, or interim 2023 period. - Company did not consult E&Y on any accounting, auditing, or financial reporting issue before engagement. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000114036123045244/0001140361-23-045244-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1680062/000114036123045244/ef20011135_8k.htm HTML page: https://secwatch.observer/filing/0001140361-23-045244 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer