CFO — Gregg Piontek: The CFO is retiring on a planned timeline with a formal search initiated and an internal CAO appointed to support the transition, indicating an orderly succession rather than a sudden loss.

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

Director — Kristen J. Pederson: Ms. Kristen J. Pederson was appointed to the Board of Directors and joined several committees.

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

Completion of Acquisition or Disposition of Assets. The information provided in

Entry into a Material Definitive Agreement. On November 24, 2025, NPK Holdings LLC (“NPK Holdings”), a wholly-owned subsidiary of NPK International Inc. (“Company”), entered into a share sale and purchase agreement (the “Share Purchase Agreement”) and completed the acquisition of the entire issued share capital of Grassform Plant Hire Limited (“Grassform”), a private limited company incorporated in England and Wales, from the shareholders of Grassform (the “Sellers”). Under the terms of the S…

Chief Financial Officer — Gregg S. Piontek: Mr. Piontek is expanding his role to include the principal accounting officer responsibilities.

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

Director — Donald Young: Resigned to devote more time to personal businesses.

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information included in

“Termination of a Material Definitive Agreement” below. All extensions of credit are subject to the satisfaction by the Company of certain conditions precedent described in the Credit Agreement, including (i) the accuracy of representations and warranties made by the Company and the guarantors and (ii) the absence of any default or event of default under the Facility. Amounts borrowed under the Facility bear interest, at the Company’s option, at either the Term SOFR rate (for 1, 3, or 6 month…

Entry into a Material Definitive Agreement. On June 20, 2025, NPK International Inc., a Delaware corporation (the “Company”), as borrower, and certain of its subsidiaries, as guarantors, entered into a credit agreement (the “Credit Agreement”) with Bank of America, N.A., as administrative agent, swingline lender and a letter of credit issuer, and a group of lenders, including Bank of America, N.A. The Credit Agreement provides for a senior secured revolving credit facility with aggregate comm…

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

Director — Mr. Joseph A. Cutillo: The Board of Directors appointed Mr. Joseph A. Cutillo as a new director.

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

Other Events. On October 29, 2024, the Company detected a ransomware cybersecurity incident (“Incident”) in which an unauthorized third party gained access to certain of the Company’s internal information systems. Upon detection, the Company activated its cybersecurity response plan and launched an investigation internally with the support of external advisors to assess and to contain the threat. The incident has caused disruptions and limitation of access to certain of the Company’s informat…

Entry into a Definitive Material Agreement. Purchase Agreement On September 13, 2024, Newpark Resources, Inc. (“Newpark” or the “Company”) entered into a Purchase Agreement (the “Purchase Agreement”) with Newpark Fluids Systems LLC, a Delaware limited liability company and an affiliate of SCF Partners (the “Purchaser”). Pursuant to, and subject to the terms and conditions set forth in the Purchase Agreement, the Company sold all of the issued and outstanding equity of Newpark Drilling Fluids…

Material Impairments. In connection with the Sale Transaction, the Company has determined that the current carrying value of Fluids Systems exceeds the agreed purchase price less costs to sell. Accordingly, the Company will recognize a pre-tax impairment charge of approximately $200 million in the third quarter of 2024, which includes an approximately $65 million non-cash charge for the reclassification of cumulative foreign currency translation losses related to Fluids Systems. The impairmen…

The unaudited pro forma condensed consolidated financial information of the Company, together with the related notes thereto, giving effect to the consummation of the Sale Transaction is filed as Exhibit 99.1 to this Current Report on Form 8-K and incorporated herein by reference.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information with respect to the First Amendment provided in

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…

of this Current Report on Form 8-K and the information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing. Use of Non-GAAP Financial Inf…