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    CLH
    Earnings call· Mar 2026(Q1 FY26)

    CLEAN HARBORS Q1 FY26 earnings call CLH

    May 6, 2026 Source

    Executive summary

    Clean Harbors Q1 FY26 — Strong Q1 Outperformance and Raised Full-Year Guidance

    Clean Harbors delivered better-than-expected Q1 FY26 results, driven by strong execution in Environmental Services and outperformance in Safety-Kleen Sustainability Solutions due to rising base oil prices. Despite weather impacts and softness in Industrial Services, the company raised its full-year adjusted EBITDA and free cash flow guidance, citing positive demand trends and strategic investments. Management highlighted its end-to-end PFAS solutions and continued application of AI for productivity and compliance.

    Highlights

    5
    • Achieved the lowest quarterly total recordable incident rate in company history at 0.39.

    • Exceeded EBITDA expectations, with consolidated adjusted EBITDA margin improving by 60 basis points YoY to 17%.

    • Environmental Services segment delivered its 16th consecutive quarter of year-over-year adjusted EBITDA margin improvement and 18th straight quarter of EBITDA growth.

    • Safety-Kleen Sustainability Solutions (SKSS) adjusted EBITDA grew 17% to $33 million, with a 320 basis point margin improvement.

    • Full-year adjusted EBITDA guidance raised by $40 million to a midpoint of $1.27 billion.

    Concerns

    3
    • Challenging weather conditions impacted collection and services business in February.

    • Regional softness in the Industrial Services business, with refinery turnarounds characterized as shorter 'pit-stop related'.

    • SG&A expense as a percentage of revenue increased year-over-year to 14.2% in Q1, partially due to higher incentive compensation and insurance costs.

    Guidance & targets

    13
    CategoryTargetConfidence
    SG&A expense as a percentage of revenue
    high 12% range
    medium materiality
    High
    Depreciation and amortization
    $460 million to $470 million
    medium materiality
    High
    Net CapEx (excluding strategic projects)
    $350 million to $410 million (midpoint $380 million)
    high materiality
    High
    Adjusted EBITDA
    $1.24 billion to $1.30 billion (midpoint $1.27 billion)
    high materiality
    High
    Consolidated Adjusted EBITDA growth
    90%
    high materiality
    High
    Second quarter adjusted EBITDA growth
    5% to 9%
    medium materiality
    High
    Environmental Services Adjusted EBITDA growth
    5% to 8%
    high materiality
    High
    Safety-Kleen Sustainability Solutions (SKSS) Adjusted EBITDA
    $165 million
    high materiality
    High
    Corporate segment negative adjusted EBITDA increase
    3% to 6%
    medium materiality
    High
    Adjusted free cash flow
    $490 million to $550 million (midpoint $520 million)
    high materiality
    High
    Incineration utilization
    mid- to upper 80%
    medium materiality
    High
    Field service branches opened
    10 more
    low materiality
    High
    Kimball incinerator EBITDA contribution
    add $10 million to $15 million
    medium materiality
    High

    Segment performance

    2
    SegmentRevenueYoYQoQMargin
    Environmental Services
    Growth in project services, including PFAS related opportunities, and considerable emergency response work. Healthy demand for disposal and recycling services. Impacted by scheduled maintenance days and weather-related impacts. 16th consecutive quarter of year-over-year improvement in adjusted EBITDA margin and 18th straight quarter of EBITDA growth.
    Incineration utilization: 80% (vs 81% a year ago)Landfill volumes: rose 34%
    increased by more than $40 millionTechnical Services revenue rose 5%; Safety-Kleen Environmental Services revenue grew 7%; Field service revenue grew 7%; March revenue ~10% higher YoYAdjusted EBITDA up 6%; ES segment margin up 50 basis points
    Safety-Kleen Sustainability Solutions
    Year-over-year decrease in revenue reflects lower market pricing for base and blended products, partially offset by an increase in charge-for-oil revenue and rising base oil prices towards the end of the quarter. Benefited from continued focus around charge-for-oil services.
    Waste oil collected: 53 million gallonsCFO pricing: more than doubled rate from Q1 last year
    decreased year-over-yearAdjusted EBITDA grew 17% to $33 million; 320 basis point improvement in margin

    Operational metrics

    21
    Consolidated Adjusted EBITDA
    $248 millionup 6%
    Q1 FY26

    Consolidated adjusted EBITDA for the first quarter.

    SG&A expense as percentage of revenue
    14.2%increased year-over-year
    Q1 FY26

    SG&A expense as a percentage of revenue in Q1, partially due to higher incentive compensation and insurance costs.

    Depreciation and amortization
    $116 millionup slightly from a year ago
    Q1 FY26

    Depreciation and amortization for the first quarter.

    Income from operations
    $119 millionup 7% from the prior year
    Q1 FY26

    Income from operations for the first quarter.

    Net income increase
    8%
    Q1 FY26

    Net income increased in the first quarter.

    Earnings per share
    $1.19
    Q1 FY26

    Earnings per share for the first quarter.

    Cash and short-term marketable securities
    $670 million
    Q1 FY26

    Cash and short-term marketable securities balance at the end of the first quarter.

    Net debt-to-EBITDA ratio
    2x
    Q1 FY26

    Net debt-to-EBITDA ratio at the end of the first quarter.

    Blended interest rate on debt
    5.2%
    Q1 FY26

    Blended interest rate on current debt.

    Cash provided from operations
    $6 million
    Q1 FY26

    Cash provided from operations in the first quarter.

    CapEx, net of disposals
    $97 milliondown roughly $20 million from the prior year
    Q1 FY26

    Capital expenditures, net of disposals, in the first quarter.

    Strategic growth project investments (CapEx)
    $15 million
    Q1 FY26

    Cash investments in strategic growth projects included in Q1 CapEx.

    Shares repurchased
    87,000 shares
    Q1 FY26

    Number of shares repurchased during the first quarter.

    Cost of shares repurchased
    $25 million
    Q1 FY26

    Total cost of shares repurchased during the first quarter.

    Average price of shares repurchased
    $287
    Q1 FY26

    Average price per share for repurchases in the first quarter.

    Share repurchase authorization remaining
    $575 million
    Q1 FY26

    Remaining amount under the share repurchase authorization, expanded by the Board in February.

    Waste oil collected
    53 million gallons
    Q1 FY26

    Volume of waste oil collected by Safety-Kleen Sustainability Solutions.

    Field service branches opened
    18
    FY25

    Number of field service branches opened in 2025.

    Kimball incinerator EBITDA contribution
    $10 million
    FY25

    Overall EBITDA contribution from the Kimball incinerator in 2025.

    PFAS revenue
    $120 million+
    FY25

    Revenue generated from PFAS-related services in 2025.

    PFAS pipeline growth
    25% to 35% rangeaccelerated
    Q1 FY26

    Accelerated growth range for the PFAS sales pipeline, up from a previous 20% increase.

    Industry KPIs

    5
    MetricValueDetails
    Volume34%%
    Core pricepricing
    EBITDA margin17%%
    Safety turnover0.39
    Recycling commodity impactrising

    Deals & partnerships

    1
    DCIAcquisition

    The DCI acquisition was closed at the end of Q1 FY26.

    Capital programs

    3
    SDA unit in East Chicagounderway
    Period spend: $85 million
    Spent to date: part of $15 million in Q1 FY26

    Expected spend for the SDA unit in East Chicago for FY26. Part of the strategic growth project investments in Q1.

    Back to fleet expansionunderway
    Period spend: $25 million
    Spent to date: part of $15 million in Q1 FY26

    Expected spend for the fleet investment for FY26. Part of the strategic growth project investments in Q1.

    Field service branch expansionunderway
    Spent to date: 18 branches opened in 2025

    Benefit: 10 more branches in 2026

    Program to expand the field service branch footprint, with 18 branches opened in 2025 and 10 more planned for 2026.

    Risks & headwinds

    5
    Challenging weather conditionsFebruary Q1 FY26

    impacted collection and services business

    Regional softness in Industrial ServicesQ1 FY26

    Industrial Services business continues to operate in a challenged market

    Mitigation: initiatives are being undertaken to position for growth and better margins as conditions improve

    Increased SG&A expenseQ1 FY26

    SG&A expense as a percentage of revenue in Q1 increased year-over-year to 14.2%

    Uncertainty in base oil marketFY26

    significant uncertainty around the duration of the overseas conflict and its impact on petroleum-derived products such as base oil

    Mitigation: SKSS segment guidance assumes $165 million of adjusted EBITDA, an appropriate assumption given the wide range of potential outcomes

    Shorter refinery turnaroundsQ1 FY26 and potentially ongoing

    more of pit-stop related refinery turnarounds, shorter in duration

    Mitigation: staying close with customers, making sure to manage all their needs and be available for services

    What to watch in Q2 FY26

    5

    SKSS EBITDA contribution from base oil prices

    Q2 and Q3 FY26
    CurrentQ1 beat included some benefit
    Targetremaining $30 million increase spread evenly between Q2 and Q3

    Why it matters

    This will indicate the sustained impact of base oil price increases on SKSS profitability and overall company guidance.

    I would think about it as the increase that's in the bank in Q1, spread pretty evenly between 2 and 3 for the rest of the $30 million and then kind of flattish to up a little bit in Q4.

    Q&A highlights

    9

    How should we think about the Q2 EBITDA guide from a segment perspective, given strong exit trends in March? Also, how does the field expansion generate cross-sell opportunities across businesses?

    SKSS is expected to overperform, with Environmental Services showing similar growth patterns to Q1. Industrial Services remains cautious. Field Service expansion complements Technical Services and Safety-Kleen Environmental by providing emergency response, vacuum services, and other needs, leveraging the existing customer base and expanding the company's footprint for emergency response.

    Our job is to make sure that as we grow out our footprint that when we have a technical service branch footprint or SKE branch that we're complementing that by building out all of our Field Service branch capabilities in those same locations and growing our cross-sell with all of our lines of business.

    asked by Noah Kaye · answered by Eric Gerstenberg

    2 min read5 chapters

    Detailed Narrative

    01

    PFAS Management Framework & Regulatory Momentum

    Clean Harbors issued a comprehensive PFAS management framework in early April, offering an end-to-end, cost-effective solution for various PFAS forms and concentrations. This framework, based on years of institutional knowledge and scientific data, including an EPA/Pentagon incineration study, provides tiered treatment and disposal pathways. The company notes significant regulatory movement, with the Department of War and U.S. EPA issuing guidance that endorses incineration, hazardous waste landfill, and water filtration, adding momentum to Clean Harbors' PFAS sales pipeline. The company believes it remains the only entity offering a commercially scalable, single-source solution for PFAS needs.

    02

    AI Integration for Operational Efficiency

    Clean Harbors has been integrating AI-type functionality for years, viewing it as the next layer of technology to enhance productivity, compliance, safety, and customer service. Current applications include waste classifications, invoice auditing, ready-to-bill automation, document processing, and field support tools. The company is also exploring AI opportunities in routing, scheduling, and supply chain logistics, emphasizing a disciplined approach with governed data and human-in-the-loop controls. AI efforts are expected to continue delivering meaningful financial returns.

    03

    Capital Allocation Strategy & M&A Pipeline

    The company continues to pursue internal and external opportunities for shareholder return, closing the DCI acquisition at the end of Q1. Management is actively evaluating other attractive M&A candidates, primarily smaller tuck-in deals in Environmental Services that feed their network or have large collection capabilities. Internal investments include a back-to-fleet expansion and an SDA unit in East Chicago. Clean Harbors ended the quarter with a strong cash balance and low leverage, supporting its growth strategy, and continues to view share repurchases as an attractive way to return value to shareholders.

    04

    Environmental Services Segment Performance & Outlook

    The ES segment saw Q1 revenue increase by over $40 million, driven by growth in project services (including PFAS) and emergency response work. Technical Services revenue rose 5%, and Safety-Kleen Environmental Services revenue grew 7% due to pricing and higher volumes. Despite weather impact🌐s and regional softness in Industrial Services, ES adjusted EBITDA was up 6%, with a 50 basis point margin improvement. The segment exited Q1 with strong momentum, with March revenues approximately 10% higher YoY, and expects continued expansion in Field Services and robust project work.

    05

    Safety-Kleen Sustainability Solutions (SKSS) Performance & Strategy

    SKSS experienced an expected year-over-year decrease in segment revenue due to lower market pricing for base and blended products, but this was partially offset by increased charge-for-oil revenue and a late-quarter surge in base oil prices. This led to a 17% increase in Q1 adjusted EBITDA to $33 million and a 320 basis point margin improvement. The company increased its charge-for-oil (CFO) pricing sequentially from Q4 and more than doubled its rate from Q1 last year, collecting 53 million gallons of waste oil while maintaining efficient re-refinery operations. Management is committed to maintaining the charge-for-oil model despite market fluctuations.

    AI-generated summary of the company’s earnings call. Not investment advice.