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NPK International Inc. is a worksite access solutions company that manufactures, sells, and rents recyclable composite matting products, along with a full suite of services, including planning, logistics, and site restoration. We serve customers in various markets including power transmission, oil and natural gas exploration and production, pipeline, renewable energy, petrochemical, construction and other industries within the United States and United Kingdom. We also sell our manufactured recyclable composite mats to customers around the world, with power transmission being the primary end-market.

The accompanying unaudited condensed consolidated financial statements of NPK International Inc. and our wholly-owned subsidiaries, which we collectively refer to as “NPK,” the “Company,” “we,” “our,” or “us,” have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission, and do not include all information and footnotes required by the accounting principles generally accepted in the United States (“U.S. GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2025. Our fiscal year end is December 31, our second quarter represents the three-month period ended June 30, and our first half represents the six-month period ended June 30. The results of operations for the second quarter and first half of 2026 are not necessarily indicative of the results to be expected for the entire year. Unless otherwise noted, all currency amounts are stated in U.S. dollars.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary to present fairly our financial position as of June 30, 2026, our results of operations for the second quarter and first half of 2026 and 2025, and our cash flows for the first half of 2026 and 2025. All adjustments are of a normal recurring nature. Our balance sheet at December 31, 2025 is derived from the audited consolidated financial statements at that date.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. For further information, see Note 1 in our Annual Report on Form 10-K for the year ended December 31, 2025.

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New Accounting Pronouncements

Standards Not Yet Adopted

Disaggregation of Income Statement Expenses. In November 2024, the FASB issued new guidance which requires entities to disclose additional information about specific expense categories, such as purchases of inventory, employee compensation, depreciation, and intangible asset amortization. This guidance will be effective for us for years beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted on either a prospective or retrospective basis. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures.

Acquisition of Grassform Plant Hire Limited

On November 24, 2025, we completed the acquisition of Grassform Plant Hire Limited (“Grassform”), a U.K. market leader in ground protection and temporary roadway solutions and services.

The estimated purchase price for this acquisition is $49.0 million, as reduced by $1.2 million during the first half of 2026, or $44.8 million net of cash acquired, with $42.1 million funded at closing in 2025. The acquisition is subject to customary post-closing adjustments pursuant to completion accounts and certain other adjustment mechanisms. Additional consideration will be payable in 2026 based upon Grassform’s trailing twelve-month performance through February 28, 2026.

The Grassform acquisition has been recorded using the acquisition method of accounting and accordingly, preliminary amounts recognized for the assets acquired and liabilities assumed were recorded at their estimated fair values as of the acquisition date. The acquisition resulted in the recognition of $12.5 million in other intangible assets, consisting of customer relationships and tradename. The customer relationships and tradename are finite-lived intangible assets that will be amortized over periods of 15 years and 10 years, respectively. The excess of the total consideration of $28.4 million was recorded as goodwill, which is not deductible for U.S. tax purposes. The fair values of the identifiable assets acquired and liabilities assumed were based on our estimates and assumptions using various market, income, and cost valuation approaches, which are classified within level 3 of the fair value hierarchy.

Depreciation and amortization for the second quarter and first half of 2026 includes $1.5 million and $3.0 million, respectively, related to the acquired Grassform business.

The results of operations of Grassform are reported within the condensed consolidated statements of operations for the period subsequent to the date of the acquisition.

Sale of Fluids Systems Business

We previously operated a Fluids Systems business, which was historically reported as a separate operating segment, that provided drilling and completion fluids products and related technical services to customers for oil, natural gas, and geothermal projects. On September 13, 2024, we completed the sale of substantially all of the Company’s Fluids Systems segment (the “Sale Transaction”) to SCF Partners.

In the first quarter of 2026, we collected $5.0 million, plus applicable accrued interest, on a note receivable due from the Purchaser, as well as $0.5 million for certain pre-closing tax assets. As of June 30, 2026, approximately $1.3 million of net liabilities were included within the consolidated balance sheet, reflecting an estimated $2.1 million due to the Purchaser partially offset by $0.8 million due from the Purchaser.

Estimated liabilities due to the Purchaser includes payables of $0.6 million for pre-closing obligations attributable to the Fluids Systems business that are expected to be settled in the third quarter of 2026, as well as a $1.5 million estimated liability for contractual indemnifications related to various pre-closing contingencies of the Fluids Systems business. These estimated liabilities due to the Purchaser are included in accrued liabilities and other noncurrent liabilities in the condensed consolidated balance sheet. Estimated deferred consideration due from the Purchaser reflects the recovery of certain pre-closing assets, and are included in other receivables in the condensed consolidated balance sheet.

Our estimates for the fair value of liabilities due to the Purchaser and deferred consideration due from the Purchaser may change and any income or expense associated with such changes will be presented in discontinued operations. In the first half of 2026, we recognized a $0.5 million pre-tax gain on sale related to the resolution of certain contractual indemnifications related to the Sale Transaction. In addition, as part of the Sale Transaction, we retained the obligation to complete the closure of certain foreign subsidiaries that are no longer operational. We expect to continue to incur certain costs for these efforts until all such entities are closed.

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The following table presents the reconciliation of the numerator and denominator for calculating net income per share:

									Second Quarter												First Half
(In thousands, except per share data)															2026						2025						2026						2025
Numerator
Income from continuing operations															$	11,989					$	8,784					$	22,347					$	19,159
Income (loss) from discontinued operations															(22)						(106)						78						(478)
Net income															$	11,967					$	8,678					$	22,425					$	18,681
Denominator
Weighted average common shares outstanding - basic															84,526						84,480						84,471						85,264
Dilutive effect of stock options and restricted stock awards															1,318						943						1,377						941
Weighted average common shares outstanding - diluted															85,844						85,423						85,848						86,205
Income (loss) per common share - basic:
Income from continuing operations															$	0.14					$	0.10					$	0.26					$	0.22
Income (loss) from discontinued operations															—						—						0.01						—
Net income															$	0.14					$	0.10					$	0.27					$	0.22
Income (loss) per common share - diluted:
Income from continuing operations															$	0.14					$	0.10					$	0.26					$	0.22
Income (loss) from discontinued operations															—						—						—						—
Net income															$	0.14					$	0.10					$	0.26					$	0.22

We excluded the following weighted-average potential shares from the calculations of diluted net income (loss) per share during the applicable periods because their inclusion would have been anti-dilutive for continuing operations:

									Second Quarter												First Half
(In thousands)															2026						2025						2026						2025
Restricted stock awards and stock options															23						732						11						518

Our Board of Directors has authorized a securities repurchase program available for repurchases of our common stock.

Our repurchase program authorizes us to purchase outstanding shares of our common stock in the open market or as otherwise determined by management, subject to certain limitations under the Credit Facility (as defined in Note 8) and other factors. The repurchase program has no specific term. Repurchases are expected to be funded from operating cash flows, available cash on hand, and borrowings under our Credit Facility. As part of the share repurchase program, our management has been authorized to establish trading plans under Rule 10b5-1 of the Securities Exchange Act of 1934.

During the first half of 2026, we repurchased an aggregate of 0.2 million shares of our common stock under the repurchase program for a cost of $2.7 million. During the first half of 2025, we repurchased an aggregate of 2.6 million shares of our common stock under the repurchase program for a cost of $17.0 million.

During the second quarter of 2026, the Compensation Committee of our Board of Directors (“Compensation Committee”) approved equity-based compensation awards to executive officers and other key employees consisting of an aggregate of 0.2 million restricted stock units, which will vest in equal installments over a three-year period. In addition, non-employee directors received grants of an aggregate of 0.1 million restricted stock awards, which will vest in full on the earlier of the day prior to the next annual meeting of stockholders following the grant date or the first anniversary of the grant date. The weighted average grant-date fair value was $15.29 per share for the restricted stock units and $15.52 per share for the

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restricted stock awards. At June 30, 2026, 2.9 million shares remained available for awards under the 2015 Plan and 0.2 million shares remained available for awards under the 2014 Director Plan.

Also, during the second quarter of 2026, the Compensation Committee approved the issuance of 0.2 million performance-based restricted stock units to certain executive officers with the payout of shares for each executive ranging from 0% to 200% of target. The performance-based restricted stock units will be settled in shares of common stock, with 70% to be settled based on the relative ranking of the Company’s total shareholder return (“TSR”) as compared to the TSR of a designated peer group and 30% to be settled based on the Company’s consolidated return on net capital employed (“RONCE”), each measured over a three-year performance period. TSR performance for the 2026 grants will be determined based on the Company’s and peer group’s average closing share price for the 30-calendar day period ending May 31, 2029, adjusted for dividends, as compared to the 30-calendar day period ending June 1, 2026. RONCE performance for the 2026 grants will be determined based on the Company’s average three-year RONCE performance for the fiscal years ending December 31, 2026, 2027 and 2028.

The TSR portion of the performance-based restricted stock units had a grant-date fair value of $21.07 per share using a Monte-Carlo valuation model, which will be recognized ratably over the service period. Assumptions used in the model included a risk-free interest rate of 3.9%, an expected life of 3 years, and an expected volatility of 37.5%. The RONCE portion of the performance-based restricted stock units had a grant-date fair value of $15.29 per share, which will be recognized ratably over the service period using the probable number of shares expected to vest based on the RONCE performance condition.

In addition, in May 2026, the Compensation Committee modified the retirement eligibility terms applicable to our outstanding long-term incentive awards, including unvested grants from 2024 and 2025. Selling, general and administrative expenses (“SG&A”) for the second quarter of 2026 includes a $0.9 million charge reflecting the acceleration of compensation expense for such awards for retirement eligible executive officers and other employees.

Receivables consisted of the following:

(In thousands)			June 30, 2026						December 31, 2025
Trade receivables:
Gross trade receivables			$	56,645					$	53,146
Allowance for credit losses			(545)						(330)
Net trade receivables			56,100						52,816
Income tax receivables			1,014						1,651
Other receivables			3,162						5,339
Total receivables, net			$	60,276					$	59,806

Other receivables as of June 30, 2026 and December 31, 2025 included $0.8 million and $1.3 million, respectively, for amounts due from the Purchaser, including the receivables and estimated deferred consideration related to the Sale Transaction (see Note 2).

Changes in our allowance for credit losses were as follows:

			First Half
(In thousands)			2026						2025
Balance at beginning of period			$	330					$	948
Credit loss expense			64						19
Write-offs, net of recoveries and other			151						(312)
Balance at end of period			$	545					$	655

Inventories consisted of the following:

(In thousands)			June 30, 2026						December 31, 2025
Raw materials			$	5,949					$	5,337
Finished goods			5,554						6,163
Total inventories			$	11,503					$	11,500

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Raw materials consist primarily of resins and other materials used to manufacture composite mats, as well as materials that are consumed in providing spill containment and other services to our customers. Finished goods consist primarily of newly manufactured composite mats, which are available for deployment into our rental fleet or sale to customers.

Financing arrangements consisted of the following:

			June 30, 2026																		December 31, 2025
(In thousands)			Principal Amount						Unamortized Discount and Debt Issuance Costs						Total Debt						Principal Amount						Unamortized Discount and Debt Issuance Costs						Total Debt
Credit Facility			$	—					$	—					$	—					$	5,300					$	—					$	5,300
Finance leases			10,566						—						10,566						11,562						—						11,562
Total debt			10,566						—						10,566						16,862						—						16,862
Less: current portion			(5,183)						—						(5,183)						(5,170)						—						(5,170)
Long-term debt			$	5,383					$	—					$	5,383					$	11,692					$	—					$	11,692

Credit Facility. In June 2025, we entered into a U.S. senior secured revolving credit agreement (the “Credit Facility”) with a group of lenders that provides financing of up to $150 million available for borrowings (inclusive of letters of credit), which can be increased up to $250 million, subject to certain conditions. The Credit Facility and the loans made under the Credit Facility are secured by a first priority lien on substantially all of the personal property of the Company and its significant U.S. subsidiaries as guarantors (subject to customary exceptions and exclusions). The Credit Facility will mature in June 2030.

As of June 30, 2026, we had no outstanding borrowings and $1.9 million in outstanding letters of credit, resulting in $148.1 million of remaining availability under the Credit Facility.

Under the terms of the Credit Facility, we may elect to borrow at a variable interest rate based on either the Term SOFR rate or an alternate base rate plus, in each case, a per annum applicable margin. The applicable margin will range from 1.75% to 2.25% for Term SOFR loans and 0.75% to 1.25% for alternate base rate loans, based on the consolidated leverage ratio (as defined in the Credit Facility) as of the last day of the most recent fiscal quarter. We are also required to pay a commitment fee on the unused portion of the Credit Facility ranging from 0.25% to 0.35% per annum based on the consolidated leverage ratio.

As of June 30, 2026, the applicable margin for loans under the Credit Facility was 1.75% for Term SOFR loans and 0.75% for alternate base rate loans, and the applicable commitment fee was 0.25% per annum.

The Credit Facility requires compliance with a maximum consolidated leverage ratio and a minimum consolidated fixed charge coverage ratio, each as defined in the Credit Facility. In addition, at our option, we may choose to increase the maximum consolidated leverage ratio for a certain period following a significant acquisition, subject to certain limitations, as defined in the Credit Facility. As of June 30, 2026, we were in compliance with required ratios.

The Credit Facility contains various customary representations, warranties and covenants that, among other things and subject to certain specified circumstances and exceptions, restrict or limit the ability of the Company and its subsidiaries to incur indebtedness (including guarantees), grant liens, make investments, pay dividends or distributions with respect to capital stock or make other restricted payments, make prepayments on other indebtedness, engage in mergers or other fundamental changes, dispose of property, or change the nature of their business.

The Credit Facility includes various events of default (subject to certain materiality thresholds and/or grace periods), including non-payment of principal, interest or fees, violation of covenants, inaccuracy of representations or warranties, cross-default to other material indebtedness, bankruptcy and insolvency events, invalidity or impairment of guarantees or security interests or invalidity of loan documents, certain ERISA events, unsatisfied or unstayed judgments and change of control.

Other Financing Arrangements. We maintain finance leases primarily related to transportation equipment. During the first half of 2026, we entered into $1.5 million of new finance lease liabilities in exchange for leased assets.

In addition, at June 30, 2026, we had $3.7 million in outstanding letters of credit (inclusive of the amount outstanding under the Credit Facility as described above), performance bonds, and other guarantees.

Fair Value of Financial Instruments. Our financial instruments include cash and cash equivalents, receivables, payables, and debt. We believe the carrying values of these instruments approximated their fair values at June 30, 2026 and December 31, 2025. Cash equivalents primarily consist of money market accounts which are measured at fair value on a recurring basis using a market approach based on quoted prices in active markets.

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In the ordinary course of conducting our business, we become involved in litigation and other claims from private party actions, as well as judicial and administrative proceedings involving governmental authorities at the federal, state, and local levels. In addition, in connection with the Sale Transaction, we have indemnified the Purchaser for certain pre-closing contingencies of the Fluids Systems business. While the outcome of litigation or other proceedings against us, including pre-closing contingencies of the Fluids Systems business, cannot be predicted with certainty, management does not expect that any loss resulting from such litigation or other proceedings, in excess of any amounts accrued or covered by insurance, will have a material adverse impact on our consolidated financial statements.

Supplemental disclosures to the statements of cash flows are presented below:

			First Half
(In thousands)			2026						2025
Cash paid (received) for interest			$	533					$	(265)

			First Half
(In thousands)			2026
Cash paid (received) for income taxes (net of refunds)
U.S. Federal			$	130
U.S. State (1)			110
Foreign (2)			(227)
Total			$	13

(1) Includes a $0.3 million payment in Texas, $0.1 million payment in Wisconsin, and $0.1 million refund in Florida.

(2) Includes a $0.2 million refund in Brazil.

Cash paid for income taxes (net of refunds) was $70,000 for the first half of 2025.

Cash, cash equivalents, and restricted cash in the consolidated statements of cash flows consisted of the following:

(In thousands)			June 30, 2026						December 31, 2025
Cash and cash equivalents			$	8,351					$	5,140
Restricted cash (included in prepaid expenses and other current assets)			—						—
Cash, cash equivalents, and restricted cash			$	8,351					$	5,140

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We have one reportable segment. The Company’s chief operating decision maker (“CODM”), its Chief Executive Officer, allocates resources and assesses financial performance on a consolidated basis. The Company’s operations, currently in the United States and United Kingdom, are substantially similar with respect to services provided, type of customers, and sourcing of materials. Resource allocations are based on the capacity of the Company’s existing rental fleet, manufacturing facility and current status of operations, including projected demand for our products and services in the industries and locations we serve. Consolidated income from continuing operations as presented in the consolidated statements of operations is used to measure performance. As such, management has determined that the Company functions as a single operating segment, and reports as a single reportable segment.

The following table presents further disaggregated revenues by type:

			Second Quarter												First Half
(In thousands)			2026						2025						2026						2025
Rental revenues			$	37,208					$	31,654					$	72,833					$	59,764
Service revenues			16,344						14,658						32,672						29,941
Product sales revenues			28,033						21,921						51,150						43,305
Total revenues			$	81,585					$	68,233					$	156,655					$	133,010

Service revenues in the table above include certain services performed that are directly related to mat rental operations. Such services include freight (hauling of rental mats), rental mat installation and removal, and direct labor related to such activities, and totaled $31.9 million and $25.8 million for the first half of 2026 and 2025, respectively.

The following table presents further disaggregated revenues by geography, based on the country in which the sale originates:

			Second Quarter												First Half
(In thousands)			2026						2025						2026						2025
United States			$	71,526					$	63,320					$	137,406					$	123,995
United Kingdom			10,059						4,913						19,249						9,015
Total revenues			$	81,585					$	68,233					$	156,655					$	133,010

The following table presents disaggregated expense information:

			Second Quarter												First Half
(In thousands)			2026						2025						2026						2025
Depreciation and amortization - Included in cost of revenues			$	7,934					$	5,675					$	15,564					$	11,022
Depreciation and amortization - Included in selling, general and administrative expenses			444						497						981						952
Total depreciation and amortization			$	8,378					$	6,172					$	16,545					$	11,974

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On May 27, 2026, Rose Robeson, a member of the Company’s board of directors, adopted a Rule 10b5-1 trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934, as amended (a “10b5-1 Plan”). Ms. Robeson’s 10b5-1 Plan provides for the aggregate sale of up to 30,000 shares of the Company’s common stock, commencing on August 27, 2026, and will be effective until May 27, 2027.

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