Perma-fix Environmental Services, Inc. · NASDAQ:PESI

Perma-fix Environmental Services — Q1 2026 Earnings Presentation

18 slides from Perma-fix Environmental Services's earnings presentation, May 6, 2026

  1. Slide 1: Global Leader in Nuclear and Mixed Waste Management Services

    A G lob al Le ader in Nucl ear and Mi xed Wast e M ana gement Ser vice s Inv estor Prese ntation : April 2026 NASDAQ: PESI

  2. Slide 2: Safe Harbor

    Safe Harbor Certain statements contained within this presentation may be deemed “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (collectively, the “Private Securities Litigati

  3. Slide 3: Company Overview

    Company Overview Perma-Fix is a leading provider of hazardous & nuclear waste disposal and treatment services. Stable base revenue business – with 5 major near-term growth opportunities Massive barriers to entry in highly regulated space 1. Treatment Segment (~73% Revenue 2025) Permitted, licensed,

  4. Slide 4: Sr. Management Team

    Sr. Management Team Mark Duff, President & Chief Executive Officer 41 years of experience in the DOE & DOD environmental and construction markets. Prior to joining Perma-Fix in 2016, Mr. Duff had been responsible for the successful completion of over 70 performance-based projects at the Paducah Gase

  5. Slide 5: Market Overview

    Market Overview Department of Energy ✓ Environmental Management (EM) • Sixteen large and active sites in the US with area equal to Rhode Island and Delaware combined • Roughly 88 million gallons of liquid waste stored in underground tanks • Long-duration cleanup mission requiring treatment, stabiliz

  6. Slide 6: Waste Treatment Facilities

    Waste Treatment Facilities Four fixed-based facilities with active permits and licenses to treat most waste streams in the industry • Broad existing permits allow treatment and management of waste for final disposition • Trained and experienced workforce with long tenure at Perma-Fix and a strong sa

  7. Slide 7: Growth Initiatives

    Growth Initiatives Perma-Fix has 4 near-term, mature, significant growth initiatives Opportunity to materially expand the scale and margin profile of the business 1) Waste Treatment Plant Upgrades 2) Hanford / DOE Program Opportunities 3) International Waste Treatment Growth 4) PFAS Treatment Techno

  8. Slide 8: Waste Treatment Plant Upgrades

    1 Waste Treatment Plant Upgrades #1) PFNW (Perma-Fix Northwest) • Developing designs and alternatives for DFLAW and grouting expansion to increase capacity to meet DOE forecast for waste generation • Expanded liquid mixed waste processing capacity to approx. 1.2M gal/yr; recently submitted permit mo

  9. Slide 9: Hanford Program Implementation

    2 Hanford Program Implementation DOE commitments with the EPA and Dept. of Ecology in a legally binding document to meet milestones for cleanup at the Hanford site #1) DFLAW Effluent Waste • DFLAW Record of Decision commits the DOE to send effluent waste from DFLAW to PFNW for at least 10 years afte

  10. Slide 10: International Growth

    3 International Growth Italy – Joint Research Centre (JRC) Contract • €50M contract over 7 years Joint Venture at 50/50 split • Project continues to advance, with field work beginning in 2026 • Characterization work expected to begin in Q3 2026, with initial waste receipts now expected in Q1 2027 Ot

  11. Slide 11: Technology Development – PFAS

    4 Technology Development – PFAS What are PFAS Chemicals • Per- and Polyfluorinated Substances (PFAS), commonly known as “forever chemicals,” do not degrade over time through any natural process or environmental conditions • Scientific studies have linked PFAS exposure to reproductive effects; increa

  12. Slide 12: Technology Development – PFAS (cont)

    4 Technology Development – PFAS (cont) Deployment Status and Next Steps • Completed fabrication, installation, commissioning, and startup of first full-scale commercial Perma-FAS system at the Company’s Perma-Fix Florida facility • Successfully processed first commercial PFAS- containing waste mater

  13. Slide 13: Historical Revenue

    Historical Revenue ($ in thousands) 120,000 100,000 80,000 60,000 40,000 20,000 0 2021 2022 2023 2024 2025 NASDAQ: PESI 13

  14. Slide 14: Profitability Model

    Profitability Model Segment Gross Profit: Fixed vs Variable Costs* Treatment Segment: High incremental Services Segment: Lower incremental margins (revenue minus variable costs**) margins (revenue minus variable costs) but result in significant gross profit growth when substantially lower fixed cost

  15. Slide 15: Illustrative Operating Model (Mid-Term)

    Illustrative Operating Model (Mid-Term)* Total Revenue $100 Million $150 Million $200 Million Treatment Service Total Treatment Service Total Treatment Service Total Revenue Mix (Treatment / 45% 55% 100% 55% 45% 100% 60% 40% 100% Service) Revenue $45M $55M $100M $83M $68M $150M $120M $80M $200M Gros

  16. Slide 16: Recap & Outlook

    Recap & Outlook • Strong Revenue Growth Expected in 2026 • Key Growth Drivers: • Treatment backlog increased approximately 51% year-over-year to $11.9 million entering 2026 • PFNW permit renewal materially expanded processing capacity and strengthens Hanford positioning • DFLAW-related waste receipt

  17. Slide 17: Investment Summary

    Investment Summary ✓ Positioned to be the leader in the multibillion-dollar nuclear services & waste treatment market • PFNW is strategically positioned to support growing Hanford-related waste streams, including DFLAW-related volumes and future grouting opportunities, with the recent permit renewal

  18. Slide 18: Key Statistics

    Key Statistics NASDAQ: PESI Current Price (3/31/26): $10.7 Shares Outstanding (3/2/26): 18.5 M Market Cap (3/31/26): $198.3 M Fiscal Year End: December 31 Inside Beneficial Ownership (3/2/26)*: 9.2% *Determined in accordance with the rules promulgated under Section 13(d) of the Exchange Act NASDAQ:

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