---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-006115"
form_type: "8-K"
ticker: "FTEK"
cik: "0000846913"
company_name: "FUEL TECH, INC."
filed_at: "2025-03-04T23:59:59+00:00"
generated_at: "2026-05-25T16:27:06.561128+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Fuel Tech Q4 net loss widens to $1.9M; FY 2024 revenue $25.1M at low end of guidance

## Summary
- Q4 2024 revenue $5.3M (down 16% YoY); gross margin 42.3% vs 51.1%.
- Net loss $(1.9)M ($0.06/share) vs $(0.5)M loss in Q4 2023.
- FY 2024 revenue $25.1M (down 7% YoY); net loss $(1.9)M vs $(1.5)M.
- Cash & investments ~$30M, no debt; APC backlog $6.2M plus $1.6M new Q1 2025 awards.
- FUEL CHEM revenue flat; DGI demo at fish hatchery set for Q2 2025.

## SEC filing metadata
- accession: 0001437749-25-006115
- form_type: 8-K
- ticker: FTEK
- cik: 0000846913
- company_name: FUEL TECH, INC.
- filed_at: 2025-03-04T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/846913/000143774925006115/0001437749-25-006115-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/846913/000143774925006115/ftek20250226_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-006115
- JSON: https://secwatch.observer/filing/0001437749-25-006115.json
- Plain text: https://secwatch.observer/filing/0001437749-25-006115.txt

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