Clean Harbors Announces Second-Quarter 2024 Financial Results

• Posts 11% Q2 Revenue Increase to $1.55 Billion, Led by Environmental Services
• Generates 15% Q2 Net Income Growth to $133.3 Million, or EPS of $2.46
• Achieves 14% Growth in Q2 Adjusted EBITDA to $327.8 Million with Margin of 21.1%
• Raises Full-Year 2024 Adjusted EBITDA Guidance

Clean Harbors, Inc. ("Clean Harbors" or the "Company") (NYSE:CLH), the leading provider of environmental and industrial services throughout North America, today announced financial results for the second quarter ended June 30, 2024.

"The positive trends that have contributed to the growth of our business in recent years continued in the second quarter, fueling an excellent performance that exceeded our expectations," said Mike Battles, Co-Chief Executive Officer. "We delivered record Q2 revenue and Adjusted EBITDA while improving our margin 50 basis points from the same period a year ago. Our Environmental Services (ES) segment benefited from strong organic growth and the late March acquisition of HEPACO. Safety-Kleen Sustainability Solutions (SKSS) rebounded sequentially from the first quarter on improved base oil and lubricant pricing momentum. Our safety results for the quarter were consistent with the prior year as we achieved a YTD Total Recordable Incident Rate (TRIR) of 0.70."

Second-Quarter Results

Revenues grew 11% to $1.55 billion compared with $1.40 billion in the same period of 2023. Income from operations increased 14% to $215.5 million compared with $189.8 million in the second quarter of 2023.

Net income was $133.3 million, or $2.46 per diluted share, compared with $115.8 million, or $2.13 per diluted share, for the same period in 2023.

Adjusted EBITDA (see description and reconciliation below) grew 14% to $327.8 million compared with $287.5 million in the same period of 2023.

Q2 2024 Segment Review

"Our ES segment achieved a 12% increase in revenue and 18% growth in Adjusted EBITDA, leading to a 140-basis point year-over-year improvement in segment margin," said Eric Gerstenberg, Co-Chief Executive Officer. "Field Services drove the revenue growth with a 64% increase, primarily reflecting the acquisition of HEPACO combined with strong organic growth in our legacy business. During the quarter, the HEPACO integration proceeded well, as evidenced by the HEPACO and legacy Field Services teams collaborating on several large emergency response events. Technical Services experienced 14% revenue growth compared to the second quarter of 2023 due to higher network volumes. Incineration utilization was 88% for the quarter, up from 84% in the same period a year ago. Average price in the incinerators was up 3%. Landfill tonnage increased 4% from Q2 2023, and the average landfill price per ton increased by 5%. Safety-Kleen Environmental Services continued its momentum with 11% revenue growth in the ES segment, driven by high demand for its core offerings. Our Industrial Services revenue declined by 10% due to reduced turnaround activity compared with Q2 of last year, particularly in the refinery space."

"Within SKSS, we rebounded from a challenging Q1 with profitable growth on a sequential basis," said Battles. "Revenue in this segment grew 8% from the second quarter of 2023, driven by a 3% increase in volumes sold and our acquisition of Noble Oil in March. Profitability was modestly lower than a year ago. Our plants performed well in the quarter, and waste oil collections increased 5% to a record 67 million gallons."

Business Outlook and Financial Guidance

"We enter the second half of 2024 with healthy demand and momentum in our core disposal, recycling and service businesses," Gerstenberg concluded. "Within Environmental Services, we believe that our record backlog, healthy project pipeline, upcoming incinerator opening and steady demand for our broad suite of services positions us well for continued success. Our new Kimball, Nebraska incinerator is on track to begin processing hazardous waste in the fourth quarter of 2024. We also expect the HEPACO acquisition, which is off to a terrific start, to further bolster our Field Services business and emergency response capabilities, while providing numerous synergy opportunities. Within our SKSS segment, we expect to see stable performance in the coming quarters, despite the current demand environment for base oil. We plan to capitalize on initiatives like Group III production, higher blended sales and our new partnership with Castrol for its MoreCircular offering, which has the potential to lower the carbon footprints of fleets in the years ahead. Overall, we continue to maintain a favorable outlook for the Company for the remainder of the year. We expect to deliver an outstanding financial performance to shareholders in 2024 and are on track to achieve our Vision 2027 goals."

In the third quarter of 2024, Clean Harbors expects Adjusted EBITDA to grow 20% to 24% from the third quarter of 2023. For full-year 2024, Clean Harbors now expects:

• Adjusted EBITDA in the range of $1.125 billion to $1.165 billion or a midpoint of $1.145 billion, which represents 13% growth year-over-year. This Adjusted EBITDA range is based on anticipated GAAP net income in the range of $391 million to $426 million.
• Adjusted free cash flow in the range of $350 million to $390 million, or a midpoint of $370 million, which includes approximately $65 million of spending related to the Kimball incinerator and $20 million for the Company's Baltimore expansion. This range is based on anticipated net cash from operating activities in the range of $750 million to $820 million.

Non-GAAP Results

Clean Harbors reports Adjusted EBITDA, which is a non-GAAP financial measure and should not be considered an alternative to net income or other measurements under generally accepted accounting principles (GAAP) but viewed only as a supplement to those measurements. Adjusted EBITDA is not calculated identically by all companies, and therefore the Company's measurement of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies. Clean Harbors believes that Adjusted EBITDA provides additional useful information to investors because the Company's management routinely evaluates the performance of its businesses based upon levels of Adjusted EBITDA, which excludes certain expenses relating to transactions not reflective of our core operations, and because the Company's loan covenants are based upon levels of Adjusted EBITDA achieved. The Company defines Adjusted EBITDA consistent with its existing revolving credit agreement, as described in the following reconciliation showing the differences between reported GAAP net income and Adjusted EBITDA for the three and six months ended June 30, 2024 and 2023 (in thousands, except percentages):

Adjusted Free Cash Flow Reconciliation

Clean Harbors reports adjusted free cash flow, which is a non-GAAP financial measure that should not be considered an alternative to net cash from operating activities or other measurements under GAAP. The Company considers adjusted free cash flow to be a measurement of liquidity that provides useful information to investors about its ability to generate cash. The Company defines adjusted free cash flow as net cash from operating activities excluding cash impacts of items derived from non-operating activities, less additions to property, plant and equipment plus proceeds from sale and disposal of fixed assets. Adjusted free cash flow is not calculated identically by all companies, and therefore the Company's measurement of adjusted free cash flow may not be comparable to similarly titled measures reported by other companies.

An itemized reconciliation between reported GAAP net cash from operating activities and adjusted free cash flow is as follows for the three and six months ended June 30, 2024 and 2023 (in thousands):

Adjusted EBITDA Guidance Reconciliation

An itemized reconciliation between projected GAAP net income and projected Adjusted EBITDA is as follows (in millions):

Adjusted Free Cash Flow Guidance Reconciliation

An itemized reconciliation between projected GAAP net cash from operating activities and projected adjusted free cash flow is as follows (in millions):

Conference Call Information

Clean Harbors will conduct a conference call for investors today at 9:00 a.m. (ET) to discuss the information contained in this press release. During the call, management will discuss Clean Harbors' financial results, business outlook and growth strategy. Investors who wish to listen to the webcast and view the accompanying slides should visit the Investor Relations section of the Company's website at www.cleanharbors.com. The live call also can be accessed by dialing 877.709.8155 or 201.689.8881 prior to the start time. If you are unable to listen to the live conference call, the webcast will be archived on the Company's website.

About Clean Harbors

Clean Harbors (NYSE:CLH) is North America's leading provider of environmental and industrial services. The Company serves a diverse customer base, including a majority of Fortune 500 companies. Its customer base spans a number of industries, including chemical, manufacturing and refining, as well as numerous government agencies. These customers rely on Clean Harbors to deliver a broad range of services such as end-to-end hazardous waste management, emergency spill response, industrial cleaning and maintenance, and recycling services. Through its Safety-Kleen subsidiary, Clean Harbors also is a leading provider of parts washers and environmental services to commercial, industrial and automotive customers, as well as North America's largest re-refiner and recycler of used oil. Founded in 1980 and based in Massachusetts, Clean Harbors operates in the United States, Canada, Mexico, Puerto Rico and India. For more information, visit www.cleanharbors.com.

Safe Harbor Statement

Any statements contained herein that are not historical facts are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are generally identifiable by use of the words "believes," "expects," "intends," "anticipates," "plans to," "seeks," "should," "estimates," "projects," "may," "likely," "potential" or similar expressions. Such statements may include, but are not limited to, statements about future financial and operating results, and other statements that are not historical facts. Such statements are based upon the beliefs and expectations of Clean Harbors' management as of the date of this press release only and are subject to certain risks and uncertainties that could cause actual results to differ materially, including, without limitation, those items identified as "Risk Factors" in Clean Harbors' most recently filed reports on Form 10-K and Form 10-Q. Forward-looking statements are neither historical facts nor assurances of future performance. Therefore, readers are cautioned not to place undue reliance on these 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 Securities and Exchange Commission, which may be viewed in the "Investors" section of Clean Harbors' website at www.cleanharbors.com.

Supplemental Segment Data (in thousands)

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