---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-037552"
form_type: "8-K"
ticker: "ACMR"
cik: "0001680062"
company_name: "ACM Research, Inc."
filed_at: "2026-05-22T12:46:16+00:00"
generated_at: "2026-05-22T12:50:29.562719+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# ACM Shanghai reports 65% YoY new order growth in Q1; high-temp SPM tool advances

## Summary
- New orders signed in Q1 2026 grew 65% year-over-year, supporting revenue outlook.
- 2026 revenue guidance unchanged; average delivery cycle ~6 months, some orders carrying into Q1 2027.
- High-temp single-wafer SPM tool achieves 15nm particle control, better than mainstream; patent protection in progress.
- Company expects to deliver more than 20 medium-to-low and high-temp SPM tools to multiple customers in 2026.
- Differentiated nozzle design eliminates periodic DI water cleaning, potentially improving yield for AI chips.

## SEC filing metadata
- accession: 0001628280-26-037552
- form_type: 8-K
- ticker: ACMR
- cik: 0001680062
- company_name: ACM Research, Inc.
- filed_at: 2026-05-22T12:46:16+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000162828026037552/0001628280-26-037552-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680062/000162828026037552/acmr-20260519.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-037552
- JSON: https://secwatch.observer/filing/0001628280-26-037552.json
- Plain text: https://secwatch.observer/filing/0001628280-26-037552.txt

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