NPK International Inc. (NYSE: NPKI) (“NPK” or the “Company”) today announced that it will issue fourth quarter and full-year 2024 results after the U.S. markets close on Wednesday, February 26, 2025. A conference call will be held the following day on Thursday, February 27, 2025, at 9:30 a.m. ET to review the Company’s financial results and conduct a question-and-answer session.

A webcast of the conference call and accompanying presentation materials will be available in the Investor Relations section of the Company’s website at https://investors.npki.com/. To listen to a live broadcast, go to the site at least 15 minutes prior to the scheduled start time in order to register, download and install any necessary audio software. Individuals can also participate by teleconference dial-in.

To participate in the live teleconference:

Domestic Live: 800-245-3047

International Live: 203-518-9765

Conference ID: NPKIQ424

To listen to a replay of the teleconference, which subsequently will be available through March 6, 2025.

Domestic Replay: 800-839-5629

International Replay: 402-220-2556

ABOUT NPK INTERNATIONAL

NPK International Inc. is a site access solutions company that manufactures, sells, and rents industry-leading sustainable composite matting products, along with a full suite of services, including planning, logistics, and remediation. As a geographically diversified company, the Company delivers superior quality and reliability across critical infrastructure markets, including electrical transmission & distribution, oil and gas exploration, pipeline, renewable energy, petrochemical, construction, and other industries. For more information, visit our website at www.npki.com.

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