Company Announcements

• Company Teams with Government Supplier V2X
• Contracts for Next Three Years Build Upon Water Filtration Work Conducted at Joint Base Pearl Harbor-Hickman Since 2022

NORWELL, Mass.--(BUSINESS WIRE)--Dec. 2, 2025-- Clean Harbors, Inc. (NYSE: CLH) (“Clean Harbors” or the “Company”), the leading provider of environmental and industrial services throughout North America, today announced that it has won contracts worth $110 million over the next three years related to its PFAS water filtration work at Joint Base Pearl Harbor-Hickam (JBPHH). Working with logistics supplier V2X, Clean Harbors will expand the use of its regenerative carbon filtration and resin units that have been operating in Hawaii since 2022.

“We are excited to grow our relationship with V2X and the U.S. War Department at JBPHH,” said Eric Gerstenberg, Co-Chief Executive Officer. “For the past several years, our regenerative carbon filtration system in Pearl Harbor has been helping to provide potable water that is safe from PFAS. We are proud to continue to work with V2X to protect the health and safety of America’s service members from the potential harm of these forever chemicals. As part of this latest contract, we will roughly double the size of what was already the largest water filtration system installation in Clean Harbors’ history.”

Clean Harbors will now be responsible for filtering approximately 4.2 million gallons of water daily at JBPHH. Working closely with both V2X and the Naval Facilities Engineering Systems Command (NAVFAC), the Company assisted in the custom design of the system, completed the installation of each phase and has maintained full operational control.

Mike Battles, Co-Chief Executive Officer, said, “Whether at military bases, airports, firefighting schools or certain industrial locations, PFAS from AFFF firefighting foam and other applications have leached into groundwater where contamination can threaten the drinking water supply. In addition to carbon filtration systems, we have introduced our ‘Total PFAS Solution,’ which addresses all phases of these forever chemicals from analysis to water filtration to remediation to disposal. Today, Clean Harbors remains the only company that can deliver comprehensive end-to-end PFAS solutions at commercial scale, including safe thermal destruction. We’re thrilled to collaborate with the U.S. War Department, V2X and other customers in addressing this critical environmental challenge while protecting the health of our communities and armed forces.”

Clean Harbors’ Total PFAS Solution offering is detailed on its PFAS website – www.cleanharbors.com/PFAS.

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,” “will,” “should,” “estimates,” “projects,” “may,” “likely,” “potential,” “outlook” or similar expressions. Such statements may include, but are not limited to, statements about the Company’s PFAS-related capabilities, customer demand for its PFAS solution, 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: operational and safety risks; risks relating to the failure of new or existing technologies; cybersecurity risks; the occurrence of natural disasters or other catastrophic events, as well as their residual macroeconomic effects; risks associated with retaining and hiring key personnel; environmental liability and product liability risks relating to hazardous waste management and other components of the Company’s business; negative economic, industry or other developments, including market volatility or economic downturns; risks associated with management’s assumptions relating to expansion of the Company’s landfills; reductions in the demand for emergency response services at industrial facilities or on roadways, railways or waterways, and other remedial projects and regulatory developments; reductions in the demand for oil products and automotive services and volatility in oil prices in the markets the Company serves; changes in statutory and regulatory requirements and risks relating to extensive environmental laws and regulations; risks associated with existing and potential litigation; risks associated with the Company’s identification and execution of strategic acquisitions and divestitures and their related liabilities; risks relating to the availability and sufficiency of the Company’s insurance coverage, self-insurance, surety bonds, letters of credit and other forms of financial assurance; the impact of new tax legislation or changes in tax regulations and interpretations; the imposition of trade sanctions or tariffs; fluctuations in interest rates and foreign currency exchange rates; risks relating to the Company’s indebtedness and covenants in its debt agreements; risks associated with certain anti-takeover provisions under the Massachusetts Business Corporation Act and the Company’s By-Laws, and 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.

View source version on businesswire.com: https://www.businesswire.com/news/home/20251202035910/en/

Eric J. Dugas
EVP and Chief Financial Officer
Clean Harbors, Inc.
781.792.5100
InvestorRelations@cleanharbors.com

Jim Buckley
SVP Investor Relations
Clean Harbors, Inc.
781.792.5100
Buckley.James@cleanharbors.com

Customer Contact:
Paul Bratti
Senior Vice President, Remediation
Clean Harbors, Inc.
781.792.5000
brattip@cleanharbors.com

Source: Clean Harbors, Inc.