Berenberg Capital Non-Deal Roadshow

May 13, 2021

Forward Looking Statements and GAAP Disclaimer

These slides contain (and the accompanying oral discussion will contain) forward-looking statements, which are generally identifiable by use of the words "believes," "expects," "intends," "anticipates," "plans to," "seeks," "should," "estimates," "projects," "may," "likely" or similar expressions. Such statements may include, but are not limited to, statements about future financial and operating results, the Company's plans, objectives, expectations and intentions and other statements that are not historical facts. Forward-looking statements are neither historical facts nor assurances of future performance. Such statements are based upon the beliefs and expectations of Clean Harbors' management as of this date only and are subject to certain risks and uncertainties that could cause actual results to differ materially, including, without limitation, the risks and uncertainties surrounding COVID-19 and the related impact on our business, and those items identified as "Risk Factors," disclosed in our periodic filings with the Securities and Exchange Commission (SEC). Therefore, readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management's opinions only as of the date hereof. Our actual results and financial condition may differ materially from those indicated in the forward- looking statements. Clean Harbors undertakes no obligation to revise or publicly release the results of any revision to these forward-looking statements other than through its filings with the SEC, which may be viewed in the "Investors" section of the Clean Harbors website.

Statement Regarding use of Non-GAAP Measures:

Adjusted EBITDA, adjusted free cash flow, adjusted net income and adjusted earnings per share, as presented in these slides, are non-GAAP financial measures and should not be considered alternatives to other measurements under generally accepted accounting principles (GAAP), but viewed only as a supplement to those measurements. These non-GAAP measures are not calculated identically by all companies. Therefore, our measurements of Adjusted EBITDA, adjusted free cash flow, adjusted net income (loss) and adjusted earnings (loss) per share are clearly defined and may not be comparable to similarly titled measures reported by other companies. We believe that Adjusted EBITDA provides additional useful information to investors since our loan covenants are based upon levels of Adjusted EBITDA achieved and the fact that management routinely evaluates the performance of its businesses based upon levels of Adjusted EBITDA. We believe adjusted free cash flow provides useful information to investors about our ability to generate cash. We believe adjusted net income (loss) and adjusted earnings (loss) per share provide useful information about our performance excluding non-recurring or extraordinary items.

Adjusted EBITDA consists of net income (loss) plus accretion of environmental liabilities, stock-based compensation, depreciation and amortization, net interest expense, loss on early extinguishment of debt, provision for income taxes and excludes other gains, losses and non-cash charges not deemed representative of fundamental segment results and other (income) expense, net. Adjusted free cash flow consists of net cash from operating activities excluding cash impacts of items derived from non-operating activities, such as taxes paid in connection with divestitures, less additions to property, plant and equipment plus proceeds from sale of fixed assets. All amounts in USD unless otherwise noted.

For a reconciliation of Adjusted EBITDA and adjusted net income to net income, a reconciliation of adjusted earnings per share to net income per share and a reconciliation of net cash from operating activities to adjusted free cash flow, please refer to the company's quarterly earnings releases, which are available on its investor relations website and filed with the SEC.

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Mission

"Create a Safer, Cleaner Environment Through

the Treatment, Recycling and Disposal of

Hazardous Materials"

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Company Snapshot

  • In North America:
    • Largest hazardous waste disposal company
    • Largest collector, recycler and re-refiner of used oil
    • Leading provider of comprehensive environmental and industrial services
  • Top 30 largest private motor carriers
  • More than 300,000 customers including a majority of the Fortune 500
  • More than 14,000 employees
  • More than 100 waste management facilities
  • More than 450 service locations in the US, Canada, Mexico and Puerto Rico

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Business Model

Environmental Services

Gather Waste

Perform Services

Technical

Services

Industrial

Services

Field

Services

Safety-Kleen

Environmental

Safety-Kleen

Sustainability

Solutions

Transport Waste

Transfer, Treat, Recycle

Disposal

and Waste Oil

and Re-Refine

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Disclaimer

Clean Harbors Inc. published this content on 13 May 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 13 May 2021 13:39:08 UTC.