---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-046185"
form_type: "8-K"
ticker: "ACMR"
cik: "0001680062"
company_name: "ACM Research, Inc."
filed_at: "2024-11-12T23:59:59+00:00"
generated_at: "2026-05-30T02:00:51.249691+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Xiao Xing resigns from ACM Research board effective November 15, 2024

## Summary
- Director Xiao Xing provided notice of resignation from Board and Audit Committee, effective Nov 15, 2024.
- Resignation not due to any disagreement with the Company, Board, management, or operations.
- Ms. Xing served on Audit Committee; resignation reduces committee size and no replacement named.

## SEC filing metadata
- accession: 0001140361-24-046185
- form_type: 8-K
- ticker: ACMR
- cik: 0001680062
- company_name: ACM Research, Inc.
- filed_at: 2024-11-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000114036124046185/0001140361-24-046185-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680062/000114036124046185/ef20038478_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-046185
- JSON: https://secwatch.observer/filing/0001140361-24-046185.json
- Plain text: https://secwatch.observer/filing/0001140361-24-046185.txt

## Key facts
- Executive change
  Xiao Xing resigned as Director at ACM Research, Inc..
  - Action: resigned
  - Role: Director
  source text: Xiao Xing has provided notice to the Board of Directors (the “Board”) of ACM Research, Inc. (the “Company”) that she will resign as a member of the Board and the Audit Committee, effective November 15, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1680062/000114036124046185/0001140361-24-046185-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.