Clean Harbors Enters Material Definitive Agreement

Ticker: CLH · Form: 8-K · Filed: Oct 10, 2025 · CIK: 822818

Clean Harbors Inc 8-K Filing Summary
FieldDetail
CompanyClean Harbors Inc (CLH)
Form Type8-K
Filed DateOct 10, 2025
Risk Levelmedium
Pages6
Reading Time7 min
Key Dollar Amounts$0.01, $745.0 million, $1,260.0 million, $1,457.3 million, $545.0 million
Sentimentneutral

Sentiment: neutral

Topics: material-definitive-agreement, financial-obligation

TL;DR

Clean Harbors just signed a big deal, expect financial moves.

AI Summary

Clean Harbors, Inc. entered into a material definitive agreement on October 9, 2025, related to a direct financial obligation. The company, incorporated in Massachusetts with EIN 04-2997780, filed its 8-K report on October 10, 2025. The filing details financial obligations and includes exhibits.

Why It Matters

This filing indicates a significant financial commitment or obligation for Clean Harbors, which could impact its financial structure and future operations.

Risk Assessment

Risk Level: medium — Material definitive agreements and new financial obligations can introduce financial risks and operational changes that warrant investor attention.

Key Players & Entities

  • Clean Harbors, Inc. (company) — Registrant
  • October 9, 2025 (date) — Date of earliest event reported
  • October 10, 2025 (date) — Date of report
  • Massachusetts (jurisdiction) — State of incorporation
  • 04-2997780 (identifier) — IRS Employer Identification No.
  • 42 Longwater Drive Norwell MA 02061-9149 (address) — Principal Executive Offices
  • 781-792-5000 (phone_number) — Registrant's telephone number

FAQ

What type of material definitive agreement did Clean Harbors, Inc. enter into?

The filing indicates the entry into a material definitive agreement on October 9, 2025, which also constitutes the creation of a direct financial obligation or an obligation under an off-balance sheet arrangement.

When was this 8-K filing submitted to the SEC?

The 8-K filing was filed as of October 10, 2025.

What is Clean Harbors, Inc.'s principal executive office address?

The principal executive offices are located at 42 Longwater Drive, Norwell, MA 02061-9149.

What is the Commission File Number for Clean Harbors, Inc.?

The Commission File Number for Clean Harbors, Inc. is 001-34223.

What is the SIC code for Clean Harbors, Inc.?

The Standard Industrial Classification (SIC) code for Clean Harbors, Inc. is 4955, which corresponds to Hazardous Waste Management.

Filing Stats: 1,827 words · 7 min read · ~6 pages · Grade level 12.9 · Accepted 2025-10-10 14:00:25

Key Financial Figures

  • $0.01 — nge on which registered Common Stock, $0.01 par value CLH New York Stock Exchange
  • $745.0 million — n Harbors, Inc. (the "Company"), issued $745.0 million aggregate principal amount of 5.750% se
  • $1,260.0 million — proceeds from the offering of Notes and $1,260.0 million in borrowings under the Amended Credit
  • $1,457.3 million — ) to refinance all of the approximately $1,457.3 million aggregate principal amount of secured s
  • $545.0 million — with cash on hand, to redeem all of the $545.0 million aggregate principal amount of its outst
  • $1,260,000,000 — an aggregate principal amount equal to $1,260,000,000, the proceeds of which were used, along

Filing Documents

01. Entry into a Material Definitive Agreement

Item 1.01. Entry into a Material Definitive Agreement. Issuance of 5.750% Senior Notes due 2033 On October 9, 2025, Clean Harbors, Inc. (the "Company"), issued $745.0 million aggregate principal amount of 5.750% senior notes due 2033 (the "Notes"). The Company used a portion of the net proceeds from the offering of Notes and $1,260.0 million in borrowings under the Amended Credit Agreement (defined below) to refinance all of the approximately $1,457.3 million aggregate principal amount of secured senior term loans that were outstanding under the Company's previously existing term loan credit facility, and accrued and unpaid interest thereon, and to pay related fees and expenses. The Company intends to use the remainder of the net proceeds from the offering of Notes, together with cash on hand, to redeem all of the $545.0 million aggregate principal amount of its outstanding 4.875% senior notes due 2027 (the "2027 Notes") on October 31, 2025. The Notes have not been registered under the Securities Act of 1933, as amended (the "Securities Act"), or the securities laws of any other jurisdiction, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act. The Notes were offered only to persons reasonably believed to be qualified institutional buyers in accordance with Rule 144A under the Securities Act and outside the United States to non-U.S. persons in accordance with Regulation S under the Securities Act. This Current Report on Form 8-K shall not constitute an offer to purchase, a solicitation of an offer to sell, or notice of redemption with respect to the 2027 Notes. Indenture The Notes were issued under an Indenture, dated October 9, 2025 (the "Indenture"), among the Company, substantially all of the Company's domestic subsidiaries, as guarantors, and U.S. Bank Trust Company, National Association, as trustee. The Indenture provides, among other things, that the

01. Financial Statements and Exhibits

Item 9.01. Financial Statements and Exhibits. (d) Exhibits Exhibit Number Description 4.1 Indenture, dated October 9, 2025, among Clean Harbors, Inc., the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee and notes collateral agent 4.2 Form of Note (included in Exhibit 4.1) 10.1 Amendment and Restatement Agreement, dated October 9, 2025, by and among financial institutions party thereto, as lenders, Goldman Sachs Lending Partners LLC, as administrative agent and collateral agent, Clean Harbors, Inc., as borrower, and the guarantors from time to time party thereto 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) 3

SIGNATURES

SIGNATURES Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Clean Harbors, Inc. (Registrant) October 10, 2025 /s/ Eric J. Dugas Executive Vice President and Chief Financial Officer 4

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