Perma-Fix Earnings Call Balances Growth With Execution Risks

Perma-fix Environmental Services ((PESI)) has held its Q4 earnings call. Read on for the main highlights of the call.

Perma-Fix Environmental Services struck a cautiously optimistic tone on its latest earnings call. Management highlighted stronger Treatment performance, expanding backlog, and a surge in international revenue, but also acknowledged a sharp cash decline, a weak Q1 ahead, and execution risk tied to U.S. government programs that still dominate the company’s opportunity set.

Moderate Revenue Growth Masks a Transition Year

Perma-Fix reported full-year 2025 revenue of $61.7 million, up 4.3% from 2024, signaling steady but unspectacular growth. Fourth-quarter revenue rose 6.9% year-over-year to $15.7 million, underscoring improving momentum even as the company prepares investors for a softer start to 2026.

Treatment Segment Emerges as the Growth Engine

The Treatment segment was the clear standout, with revenue up about 29% year-over-year and roughly $10.1 million higher than in 2024. Management credited higher waste volumes, better throughput, and a more favorable mix, positioning Treatment as the main driver of margin recovery and cash generation going forward.

Backlog Expansion Boosts Visibility

Waste treatment backlog climbed to $11.9 million at year-end from $7.9 million a year earlier, an increase of roughly 51%. This larger backlog gives the company better near-term revenue visibility and underpins expectations for a ramp in activity as delayed projects and Hanford-related work move into execution.

International Revenue Surges on Growing Global Demand

International revenue jumped about 163% year-over-year to roughly $6.4 million, reflecting strong demand from foreign entities. Management described a growing pipeline of international projects, suggesting overseas markets could become a more meaningful contributor and reduce reliance on U.S. federal programs over time.

Perma-Fix Northwest Secures Capacity-Boosting Permit

At Perma-Fix Northwest, a renewed permit significantly expanded allowed liquid processing capacity to about 1.2 million gallons per year, roughly tripling prior limits, and authorized up to 175,000 tons of macro-encapsulation annually. The company is seeking a further permit modification to lift liquid capacity toward 4.2 million gallons, with regulators expected to take six to nine months.

Hanford/DFLAW Unlocks a Large Long-Term Opportunity

Management expects DFLAW-related receipts to begin in Q2, with dry waste in April and liquid blowdown in May and DOE estimates indicating liquid waste volumes could rise about 20% due to process changes. Perma-Fix’s internal view is that DFLAW alone could generate roughly $1 million to $2 million in monthly revenue as it ramps, within a much larger multi-decade grouting and tank retrieval opportunity.

PFAS Technology Moves Toward Commercial Scale

The company’s PFAS treatment platform is progressing, with a Gen 1 unit already running around 650 gallons per day for about four days a week. A Gen 2 system, currently being installed at a cost of roughly $4 million to $5 million, is expected to lift PFAS capacity to about 3,000 gallons per day, targeting large-volume work at $10 to $15 per gallon and incremental margins of roughly 60% to 70%.

Profitability Trends Improve, Though Still in the Red

Perma-Fix showed notable improvement in profitability metrics even while remaining unprofitable overall, with gross profit up about $6 million year-over-year. EBITDA from continuing operations improved to a loss of $9.7 million from a loss of $13.8 million, and the net loss narrowed to $13.8 million, or $0.75 per share, versus $20.0 million, or $1.33 per share, in 2024.

New Services Wins Build the Project Pipeline

Despite recent Services softness, commercial traction improved, with over $30 million of new Services backlog booked and more than $40 million of new bids submitted during Q1. Management noted several new projects have recently mobilized, supporting their view that activity should inflect higher starting in Q2 as these awards convert into revenue.

TRU Processing and Hanford Brine Provide Near-Term Lift

Transuranic waste processing at Perma-Fix Northwest saw a shift expansion, effectively doubling capacity and expected to add roughly $0.75 million to $1.0 million of revenue per month. Management also highlighted a Hanford runoff and brine program slated to begin April 1, which could contribute around $1.5 million per month, anchoring the anticipated Q2 revenue ramp.

Q1 Weakness and Expected Losses Weigh on Near Term

The company cautioned that Q1 2026 will be soft, with revenue expected around $13 million and negative EBITDA likely surpassing $4 million. About $2 million of revenue that might have been recognized in Q1 will instead shift into Q2 due to timing of processing stored waste, adding lumpiness to reported results.

Material Cash Burn Raises Balance-Sheet Questions

Cash on hand dropped sharply to $11.8 million at year-end 2025 from $29.0 million a year earlier, a decline of roughly 59%. The company used about $10.3 million in cash from continuing operations and another $4.9 million for investing activities, underscoring the importance of the coming revenue ramp and PFAS commercialization to stabilize liquidity.

Services Revenue Hit by Delays and Government Disruptions

The Services segment struggled, with revenue down around $7.6 million year-over-year as project mobilizations and procurement decisions slipped. Management pointed to the partial federal government shutdown and administrative transitions as key factors, suggesting that much of the Services weakness is timing-related rather than structural.

Higher SG&A and Wider Q4 Loss Highlight Investment Phase

Fourth-quarter net loss widened to $5.7 million from $3.5 million in the prior-year quarter, reflecting both operating pressure and higher overhead. SG&A rose to $4.2 million in Q4 and $16.4 million for the year, up from $3.9 million and $14.4 million respectively, driven by payroll, marketing, trade shows, and legal costs tied to growth initiatives.

Execution and Timing Risks Around DFLAW Ramp

While DFLAW represents a significant opportunity, its timing remains uncertain as hot commissioning has been extended and detailed operating plans from DOE are limited. Management stressed that DOE execution and site conditions are the main gating factors and acknowledged that predicting the pace of the DFLAW ramp remains difficult.

PFAS Gen 2 Delays and Capital Intensity Add Risk

The Gen 2 PFAS unit, a key part of the company’s growth story, has been delayed by supply chain challenges, with installation under way and testing expected in late April or early May. With a sizable $4 million to $5 million build cost and commercialization dependent on securing larger-volume contracts, investors face both timing and execution risk around PFAS ramp-up.

Working Capital and Legacy Liabilities Under Pressure

Unbilled receivables increased by about $3.8 million year-over-year, mainly due to the timing of Treatment shipments, which ties up working capital. Long-term liabilities tied to discontinued operations also increased by $2.7 million after an additional remediation reserve, signaling ongoing cash and liability pressure from legacy obligations.

Heavy Dependence on Government and Regulatory Decisions

A large portion of Perma-Fix’s near- and medium-term opportunity, including DFLAW, grouting programs, and Hanford tank retrievals, depends on DOE decisions and regulatory approvals. This dependence exposes results to delays in analyses, permit modifications, and multi-year execution cycles, making revenue timing inherently uncertain and sometimes volatile.

Guidance: Soft Q1, Q2 Inflection, and Longer-Term Ramp

Management guided to a weak Q1 with about $13 million of revenue and negative EBITDA expected to exceed $4 million, partly due to roughly $2 million of revenue shifting into Q2. From Q2 onward, they anticipate an inflection as DFLAW, expanded TRU and brine streams, increased Northwest capacity, and PFAS Gen 2 investments drive higher throughput, improved margins, and a multi-year growth runway tied to DOE’s long-dated waste treatment plans.

Perma-Fix’s earnings call painted a picture of a company moving past a difficult year and leaning into a substantial, government-driven opportunity set. For investors, the story balances improving operations, rising backlog, and promising PFAS technology against cash burn, project delays, and regulatory uncertainty, making execution across 2026 and 2027 the key catalyst to watch.