---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-204883"
form_type: "8-K"
ticker: "MKSI"
cik: "0001049502"
company_name: "MKS INC"
filed_at: "2022-07-28T23:59:59+00:00"
generated_at: "2026-06-24T07:15:00.699876+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# MKS Instruments receives China SAMR approval for Atotech acquisition; closing set Aug 17

## Summary
- Unconditional merger approval from China's State Administration for Market Regulation (SAMR).
- All required regulatory clearances now obtained for the pending acquisition of Atotech.
- Closing anticipated on August 17, 2022, subject to Royal Court of Jersey sanction and customary conditions.
- Consideration: $16.20 cash plus 0.0552 MKS common share per Atotech share.
- Deal announced July 1, 2021; total value as of announcement was ~$5.1B.

## SEC filing metadata
- accession: 0001193125-22-204883
- form_type: 8-K
- ticker: MKSI
- cik: 0001049502
- company_name: MKS INC
- filed_at: 2022-07-28T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049502/000119312522204883/0001193125-22-204883-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049502/000119312522204883/d320747d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-204883
- JSON: https://secwatch.observer/filing/0001193125-22-204883.json
- Plain text: https://secwatch.observer/filing/0001193125-22-204883.txt

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