---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-020978"
form_type: "8-K"
ticker: "AXTI"
cik: "0001051627"
company_name: "AXT INC"
filed_at: "2026-06-17T20:15:48+00:00"
generated_at: "2026-06-17T20:19:52.965041+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# AXT subsidiary signs $25.4M InP wafer supply deal with Casela for 2027

## Summary
- Tongmei, AXT's subsidiary, entered a Long-term Supply Agreement with Nanjing Casela Technologies for InP substrates.
- Casela commits to purchase InP wafers totaling RMB 173M (~$25.4M) during 2027, with monthly deliveries scheduled.
- Casela must prepay 50% of the total within 15 business days and the remaining 50% by December 31, 2026.
- Tongmei reserves capacity and grants supply priority; failure to purchase 80% triggers a cancellation fee.
- Agreement secures significant 2027 revenue for AXT's InP business and provides upfront cash from prepayment.

## SEC filing metadata
- accession: 0001437749-26-020978
- form_type: 8-K
- ticker: AXTI
- cik: 0001051627
- company_name: AXT INC
- filed_at: 2026-06-17T20:15:48+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1051627/000143774926020978/0001437749-26-020978-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1051627/000143774926020978/axti20260615_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-020978
- JSON: https://secwatch.observer/filing/0001437749-26-020978.json
- Plain text: https://secwatch.observer/filing/0001437749-26-020978.txt

## Key facts
- Material Agreements
  AXT INC entered into Long-term Supply Agreement with Nanjing Casela Technologies Corporation, Ltd. valued at RMB 173,000,000 (approximately US $25.4 million) (effective 2026-06-11).
  - Action: entry
  - Agreement: supply
  - Counterparty: Nanjing Casela Technologies Corporation, Ltd.
  - Value: RMB 173,000,000 (approximately US $25.4 million)
  - Effective: 2026-06-11
  source text: On June 11, 2026, Beijing Tongmei Xtal Technology Co., Ltd. (“Tongmei”), the subsidiary of AXT, Inc., a Delaware corporation, entered into a Long-term Supply Agreement (the “Agreement”) with Nanjing Casela Technologies Corporation, Ltd. (“Casela”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1051627/000143774926020978/0001437749-26-020978-index.htm

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