---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-079277"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2025-08-15T23:59:59+00:00"
generated_at: "2026-05-17T12:22:30.083756+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "medium"
source: SEC EDGAR
---

# ClearSign Q2 update: cash $12.3M; new orders and product launches; no revenue disclosed

## Summary
- Cash balance $12.3M at June 30; 52.4M shares outstanding.
- Received engineering order for enhanced process burner from California refinery.
- Launched M-Series process burner with Gulf Coast installation and Colorado order.
- Launched co-branded Zeeco CS5 burner line with sub-5ppm NOx/hydrogen capability.
- Received boiler burner order for 500HP fire tube burner with M-Series integration.

## SEC filing metadata
- accession: 0001104659-25-079277
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2025-08-15T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: medium
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465925079277/0001104659-25-079277-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465925079277/tm2523643d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-079277
- JSON: https://secwatch.observer/filing/0001104659-25-079277.json
- Plain text: https://secwatch.observer/filing/0001104659-25-079277.txt

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