Arq, Inc. (ARQ) - Q1 2026 10-Q Summary
Business Context and Reporting Period
This report covers the quarterly period ended March 31, 2026. Arq, Inc. is an environmental technology company focused on advanced purification technologies (APT), primarily manufacturing activated carbon (AC) products for air, water, and soil treatment. The company operates a lignite mine in Louisiana (Five Forks Mine) and manufacturing facilities in Louisiana (Red River Plant) and Kentucky (Corbin Facility).
Key Financial Metrics
| Metric | Q1 2026 | Q1 2025 |
|---|---|---|
| Revenue | $29.1 million | $27.2 million |
| Net (Loss) Income | $(0.8) million | $0.2 million |
| Operating (Loss) Income | $(0.98) million | $0.66 million |
| EBITDA | $1.85 million | $3.18 million |
| Adjusted EBITDA | $2.74 million | $4.06 million |
| Cash and Restricted Cash | $15.9 million | $14.8 million |
| Revolving Credit Facility Balance | $20.9 million | $18.95 million |
| Total Debt Obligations | $30.2 million | $28.5 million |
Note: All figures in millions unless otherwise noted. Gross margin (exclusive of D&A) declined due to lower-margin chemical sales and GAC facility costs.
Material Changes vs. Prior Period
- Revenue Growth: Revenue increased 7% year-over-year, driven by higher sales volumes of AC products in the power generation sector due to elevated natural gas prices and seasonal demand.
- Profitability Decline: The company reported a net loss of $0.8 million compared to a net income of $0.2 million in Q1 2025. This was primarily due to increased operating expenses and cost of revenue.
- Operating Expenses: SG&A expenses rose 22% to $7.4 million, driven by legal fees related to ongoing litigation with a former engineering firm and severance costs associated with pausing operations at the Corbin Facility.
- Working Capital: Inventory increased by $4.0 million to $19.9 million, while accounts receivable grew by $1.0 million.
Outlook, Risks, and Management Commentary
- Production Pause: In March 2026, management decided to pause Granular Activated Carbon (GAC) production at the Red River Plant and continue idling the Corbin Facility. This follows the discovery of design flaws in the GAC Facility and variability in the Corbin Wetcake feedstock.
- Optimization Review: The company is conducting an engineering and production process optimization review to determine the economic viability of the GAC Facility at different scales and to evaluate transitioning to a bituminous coal feedstock.
- Liquidity: Management expects cash on hand and borrowing availability under the Revolving Credit Facility to fund operations for the next 12 months. The company recently amended its credit agreement to replace the minimum liquidity covenant with an availability reserve requirement.
- Legal Proceedings: Litigation continues against the design firm for the GAC Facility regarding negligence and contract breaches. The company is seeking damages for cost increases and delays.
- Guidance: The company does not expect GAC production in fiscal year 2026. Revenue is expected to remain supported by demand for Powdered Activated Carbon (PAC) products.
Investor Verification Checklist
- GAC Facility Viability: Verify the timeline and capital requirements for the engineering optimization review and the potential transition to bituminous coal feedstock.
- Debt Covenants: Monitor compliance with the amended Revolving Credit Facility covenants, specifically the new $2.5 million availability reserve requirement.
- Legal Exposure: Track the status of the lawsuit against the GAC Facility design firm and potential counterclaims.
- Inventory Levels: Assess the impact of the $4.0 million increase in inventory on future working capital needs and potential obsolescence risks.
- Seasonality and Commodity Prices: Evaluate the sensitivity of future revenue to natural gas prices and seasonal weather patterns affecting power generation demand.