MYERS INDUSTRIES INC Commitments Disclosure

9. Contingencies

The Company is a defendant in various lawsuits and a party to various other legal proceedings arising in the ordinary course of business, some of which are covered in whole or in part by insurance. When a loss arising from these matters is probable and can reasonably be estimated, the most likely amount of the estimated probable loss is recorded, or if a range of probable loss can be estimated and no amount within the range is a better estimate than any other amount, the minimum amount in the range is recorded. As additional information becomes available, any potential liability related to these matters is assessed and the estimates are revised, if necessary.

Based on current available information, management believes that the ultimate outcome of these matters, including those described below, will not have a material adverse effect on our financial position, cash flows or overall trends in our results of operations. However, these matters are subject to inherent uncertainties, and unfavorable rulings could occur. If an unfavorable ruling were to occur, there exists the possibility of a material adverse impact on the financial position and results of operations of the period in which the ruling occurs, or in future periods.

New Idria Mercury Mine

In September 2015, the U.S. Environmental Protection Agency (“EPA”) informed a subsidiary of the Company, Buckhorn, Inc. (“Buckhorn”) via a notice letter and related documents (the “Notice Letter”) that it considers Buckhorn to be a potentially responsible party (“PRP”) in connection with the New Idria Mercury Mine site (“New Idria Mine”). New Idria Mining & Chemical Company (“NIMCC”), which owned and/or operated the New Idria Mine through 1976, was merged into Buckhorn Metal Products Inc. in 1981, which was subsequently acquired by Myers Industries, Inc. in 1987. As a result of the EPA Notice Letter, Buckhorn and the Company entered into an Administrative Order of Consent (“AOC”) with the EPA for the Remedial Investigation/Feasibility Study (“RI/FS”) to determine the extent of remediation necessary and the screening of alternatives. The AOC and related Statement of Work (“SOW”) were effective as of November 27, 2018, the date that it was executed by the EPA. The AOC requires a $2 million letter of credit to be provided for the duration of the RI/FS as assurance of Buckhorn's performance obligations.

All reasonably estimable costs related to the environmental remediation are accrued. These costs are comprised primarily of estimates to perform the RI/FS, identification of possible other PRPs, EPA oversight fees, past cost claims made by the EPA, periodic monitoring, and responses to demands issued by the EPA under the AOC. It is possible that adjustments to the aforementioned reserves will be necessary as new information is obtained, including after finalization and EPA approval of the work plan for the RI/FS. Estimates of Buckhorn’s liability are based on current facts, laws, regulations and technology. Estimates of Buckhorn’s environmental liabilities are further subject to uncertainties regarding the nature and extent of site contamination, the range of remediation alternatives available, evolving remediation standards, imprecise engineering evaluation and cost estimates, the extent of remedial actions that may be required, the extent of oversight by the EPA and the number and financial condition of other PRPs that may be named, as well as the extent of their responsibility for the remediation. Beginning in late 2021 and continuing through the current period, Buckhorn and the EPA continue to actively discuss the scope of the activities in the work plan for the RI/FS, resulting in changes to the estimated costs to perform the RI/FS work plan from time to time. Cost estimates will continue to be refined as the work plans for the RI/FS and the ultimate remediation are finalized and as the activities are performed over a period expected to last several years.

In 2022, Buckhorn reached an agreement with respect to certain insurance coverage related to defense costs, which is expected to apply to a substantial portion of the estimated RI/FS costs. Recovery of accrued costs are recorded as a receivable to the extent such recovery is determined to be probable under this agreement. Estimates of cost recoveries will continue to be refined as the RI/FS work plan is finalized and the activities are performed over a period expected to last several years. Buckhorn may also have opportunity for cost recovery under other insurance policies.

Since October 2011, when the New Idria Mine was added to the Superfund National Priorities List by the EPA, Buckhorn has recognized $27.6 million of cumulative charges, made cumulative payments of $17.0 million and received insurance recoveries of $8.5 million

through December 31, 2025. For the years ended December 31, 2025, 2024 and 2023, the following undiscounted activity was recorded in connection with the New Idria Mercury Mine:

Given the circumstances referred to above, including the fact that the final remediation strategy has not yet been determined, Buckhorn has not accrued for remediation costs in connection with this site as it is unable to estimate the range of a reasonably possible liability for remediation costs.

New Almaden Mine

A number of parties, including the Company and its subsidiary, Buckhorn (as successor to NIMCC), were alleged by trustee agencies of the United States and the State of California to be responsible for natural resource damages due to environmental contamination of areas comprising the historical New Almaden mercury mines located in the Guadalupe River Watershed region in Santa Clara County, California (“County”). In 2005, Buckhorn and the Company, without admitting liability or chain of ownership of NIMCC, resolved the trustees’ claim against them through a consent decree that required them to contribute financially to the implementation by the County of an environmentally beneficial project within the impacted area. Buckhorn and the Company negotiated an agreement with the County ("Cost Sharing Agreement"), whereby Buckhorn and the Company agreed to reimburse one-half of the County’s costs of implementing the project. A detailed estimate was received from the County in 2016, and estimated costs for implementing the project to range between $3.3 million and $4.4 million. In 2022, the County informed the Company that it may begin implementation of the project in 2023 and that costs were expected to be higher. In January 2023, the County informed Buckhorn that the project will commence in 2023 and that it had accepted a bid to complete the project for approximately $9.0 million. The Company and Buckhorn intend to vigorously challenge, under the terms of the Cost Sharing Agreement, their responsibility to share in the entirety of the project cost increases. No additional costs were incurred related to New Almaden in the years ended December 31, 2025, 2024 and 2023 and payments of $0.1 million were made for the year ended December 31, 2023. As of December 31, 2025, Buckhorn has a total reserve of $4.4 million related to the New Almaden Mine, of which $0.3 million is classified in Other current liabilities and $4.1 million is classified in Other liabilities (long-term).

It is possible that adjustments to the aforementioned reserves will be necessary to reflect new information. In addition, the Company may have claims against and defenses to claims by the County under the 2005 agreement that could reduce or offset its obligation for reimbursement of some of these potential additional costs. With the assistance of environmental consultants, the Company will closely monitor this matter and will continue to assess its reserves as additional information becomes available.

Other Matters

On February 14, 2023, a lawsuit was filed by Nan Morgan McCartney in the Circuit Court of Escambia County, Florida (later removed to the Northern District of Florida, Pensacola Division) against the Company, Scepter US Holding Company, Scepter Manufacturing, LLC, Scepter Canada Inc., Walmart Inc., and Wal-Mart Stores East, LP. The complaint sought compensatory damages and court costs for harm caused to Ms. McCartney allegedly arising from use of a 5-gallon portable fuel container manufactured by a Scepter company and alleges amounts in controversy in excess of $30 thousand exclusive of costs. On April 2, 2025, the Myers defendants learned that Walmart had settled its case with Plaintiff. On January 24, 2026 the Myers defendants settled the remaining aspects of the case with Plaintiff within coverages of insurance policies maintained by Scepter.

On March 18, 2025, a lawsuit was filed by Ryan Colvin, individually and on behalf of his minor son, C.C., and Chelsea Conkel, individually, in the United States District Court for the District of Arizona, against Scepter Manufacturing, LLC. The Complaint seeks damages and court costs for harm caused to Plaintiff’s minor son and both parents allegedly arising from the use of a 5-gallon portable fuel container manufactured by Scepter Manufacturing, LLC, and alleges amounts in controversy in excess of $75 thousand. The Company was served the Complaint on June 6, 2025, and filed its Answer on June 16, 2025. The Company cannot assess with any meaningful probability the outcome or the potential damages. Scepter has maintained insurance policies, which it believes will cover a substantial portion of the defense costs incurred in this matter.

On July 9, 2024, Spartan Composites, LLC (“Spartan”) d\b\a FODS (“FODS”) and Spartan Mats, LLC (“Spartan Mat”) (collectively, “Plaintiffs”) filed suit against Signature Systems Group, LLC, a wholly-owned subsidiary of the Company (“Signature”) in the United States District Court for the Eastern District of Texas, asserting certain claims relating to Signature’s manufacture and sale of its DiamondTrack mat, including misappropriation of FODS’ trade secrets under federal and state law, breach of a prior settlement agreement between Signature, FODS and Spartan Mat, and tortious interference with FODS’ prospective business relationships. Signature was acquired by the Company on February 8, 2024, and in connection with the acquisition, the Company obtained insurance policies providing coverage against the inaccuracy or breach of certain of the sellers’ representations and warranties set forth in the acquisition agreement (“RWI Policies”). On November 20, 2025, a jury found in favor of Plaintiffs on several counts of their complaint, including misappropriation of trade secrets and breach of contract, and awarded damages of up to $15 million, plus pre- and post-judgment interest and potential attorney fees. The Company believes the jury’s verdict contains errors that the Company intends to vigorously challenge through post-trial motions and, if necessary, through the appellate process. The Company has not accrued for potential losses in this matter as the Company cannot reasonably estimate any loss or range of loss because the matter cannot be quantified until a final, appealable order is issued. On January 5, 2026, the court granted Plaintiffs’ post-trial motion for a preliminary injunction preventing Signature from marketing, selling, renting, leasing, or manufacturing its DiamondTrack mat pending final ruling(s). Sales of this mat represented less than 1% of the Company’s 2025 consolidated sales. Various post-trial motions remain pending, which Signature may appeal, depending on the Court’s ruling(s). The Company believes that the RWI Policies will cover a substantial portion of ongoing defense costs and any final judgments rendered in the matter.