---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-092147"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2024-08-23T23:59:59+00:00"
generated_at: "2026-05-31T07:49:16.896826+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ClearSign Q2 update: $16M cash, largest burner order, 26-burner project, board changes

## Summary
- Received initial engineering order for 26 ClearSign Core burners for four heaters at a Texas Gulf Coast petrochemical facility (Fortune 500 client, partner Birwelco USA).
- Sold largest boiler burner to date (~90 MMBTU/hr) to Devco Process Heaters for a Texas gas processing plant; delivery expected Q3 2024.
- Closed public offering and private placement with gross proceeds ~$9.3M and ~$4.3M respectively; cash and equivalents ~$16M at June 30, 2024.
- Successful start-up of second multi-burner (5-burner) heater at Kern Energy refinery; emissions below guarantee; engineering orders for two more heaters (4 burners total).
- Board appointments: David Maley and G. Todd Silva joined Board; Silva replaced Robert T. Hoffman Sr. as clirSPV LLC designee.

## SEC filing metadata
- accession: 0001104659-24-092147
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2024-08-23T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465924092147/0001104659-24-092147-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465924092147/tm2422517d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-092147
- JSON: https://secwatch.observer/filing/0001104659-24-092147.json
- Plain text: https://secwatch.observer/filing/0001104659-24-092147.txt

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