---
schema_version: "secwatch.filing_event.v1"
accession: "0001515156-25-000005"
form_type: "8-K"
ticker: "ARQ"
cik: "0001515156"
company_name: "Arq, Inc."
filed_at: "2025-02-07T23:59:59+00:00"
generated_at: "2026-05-27T00:54:09.572189+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Arq GAC project on track for Q1 2025 production; FY24 capex ~$80M; sues design firm for cost overruns

## Summary
- Initial GAC production at Red River remains on track for Q1 2025; full run-rate of 25M lbs targeted for H2 2025.
- FY 2024 capex for GAC expansion slightly above expectations at ~$80M; attributed to additional professional services and small-bore piping.
- Commenced legal proceedings against design firm for negligence/breach of contract causing material cost increases and delays; seeks damages.
- Customer negotiations progressing; holding back additional contract commitments to diversify end-use markets and optimize profitability.
- Company expects no impact on product performance or timeline from legal action; production schedule unchanged.

## SEC filing metadata
- accession: 0001515156-25-000005
- form_type: 8-K
- ticker: ARQ
- cik: 0001515156
- company_name: Arq, Inc.
- filed_at: 2025-02-07T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1515156/000151515625000005/0001515156-25-000005-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1515156/000151515625000005/ades-20250207.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001515156-25-000005
- JSON: https://secwatch.observer/filing/0001515156-25-000005.json
- Plain text: https://secwatch.observer/filing/0001515156-25-000005.txt

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