Basis of Consolidation – LSB Industries, Inc. and its subsidiaries are consolidated in the accompanying unaudited condensed consolidated interim financial statements. All intercompany accounts and transactions have been eliminated. Certain prior period amounts reported in our unaudited condensed consolidated interim financial statements and notes thereto have been reclassified to conform to current period presentation.

Nature of Business – We are engaged in the manufacture and sale of chemical products. The chemical products we primarily manufacture, market and sell are (i) ammonia and urea ammonia nitrate (“UAN”) for agricultural applications, and (ii) high purity and commercial grade ammonia, high purity ammonium nitrate, sulfuric acids, concentrated, blended and regular nitric acid, mixed nitrating acids, carbon dioxide, and industrial grade ammonium nitrate (“LDAN”) and ammonium nitrate (“AN”) solutions for industrial applications. We manufacture and distribute products in four facilities; three of which we own and are located in El Dorado, Arkansas (the “El Dorado Facility”); Cherokee, Alabama (the “Cherokee Facility”); and Pryor, Oklahoma (the “Pryor Facility”); and one of which we operate on behalf of Covestro LLC in Baytown, Texas.

Our customers include farmers, ranchers, fertilizer dealers and distributors primarily in the ranch land and grain production markets in the United States; industrial users of acids throughout the United States and parts of Canada; and explosives manufacturers in United States and other parts of North America.

Seasonality – These interim results are not necessarily indicative of results for a full year due, in part, to the seasonality of our sales of agricultural products and the timing of performing our major plant maintenance activities. Our selling seasons for agricultural products are primarily during the spring and fall planting seasons, which typically extend from March through June and from September through November.

Equity Awards – Equity award transactions with employees are measured based on the estimated fair value of the equity awards issued. For equity awards with only a service condition, the grant date fair value is based on the market price of our common stock and compensation is recognized so long as the service condition is met. For equity awards with simultaneous service, market and performance conditions, the grant date fair value is based on a Monte Carlo simulation, and compensation is recognized so long as the service condition is met and it is probable the performance condition will be achieved without regard to the outcome of the market condition. For equity awards with a service and market condition, the grant date fair value is based on a Monte Carlo simulation, and compensation cost is recognized so long as the service condition is met, without regard to the outcome of the market condition. For equity awards with service conditions that have a graded vesting period, we recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Forfeitures are accounted for as they occur.

On February 10, 2026, we entered into a side letter agreement (the “Side Letter”) with our Chief Executive Officer, Mark T. Behrman, which modifies all of Mr. Behrman’s outstanding equity awards to incorporate qualifying retirement provisions. Pursuant to the Side Letter, upon a qualifying retirement, all of Mr. Behrman’s outstanding time-based restricted stock units (“RSU”) will accelerate and vest in full. Additionally, all outstanding performance-based RSUs will accelerate and vest at the greater of (i) target or (ii) actual performance through the retirement date, as determined by our Compensation Committee of the Board of Directors. For the purposes of the Side Letter, a “qualifying retirement” is defined as a voluntary retirement occurring (i) on or after age 63 with at least five years of service, (ii) more than one year after the applicable grant date, and (iii) absent of any determination by us of grounds for termination for cause. All future equity awards granted to Mr. Behrman shall also include the same qualifying retirement provisions, unless otherwise agreed in writing by us and Mr. Behrman.

Upon the execution of the Side Letter, Mr. Behrman met the criteria for a qualifying retirement with respect to his equity awards granted in 2024 and 2025. As a result of the shortened amount of time that Mr. Behrman would be required to serve in order to be eligible for vesting, we accelerated recognition of the remaining compensation cost associated with those grants in the amount of $3.1 million during the first quarter of 2026. The modification impacted the timing of expense recognition for the impacted awards by bringing it forward but did not increase total compensation cost.

On April 24, 2026, the Company made a one-time retention grant of 706,880 time-based RSUs to Mr. Behrman under the 2025 Long-Term Incentive Plan. The RSUs are subject to cliff vesting and will vest on March 31, 2029, subject to Mr. Behrman’s continued service with the Company.

Cash and Cash Equivalents – Investments, which consist of highly liquid investments with original maturities of three months or less, are considered cash equivalents.

Short-Term Investments – Investments, which consist of U.S. treasury securities with remaining maturity at the time of purchase greater than three months but less than 12 months, are considered short-term investments and are classified as Level 1 under the fair value hierarchy. These investments are classified as held to maturity, consistent with our intent to hold these investments to maturity. U.S. treasury bills with remaining maturity at the time of purchase of three months or less are included in cash and cash equivalents. Due to the nature of these investments as U.S. treasury securities, no impairment is anticipated. See “Note 6. Financial Instruments” for more information regarding our short-term investments.

Accounts Receivable – Substantially all of our accounts receivable consists of trade receivables from customers. We have recognized an appropriate allowance for estimated uncollectible accounts to reflect any estimate of expected credit losses. Our estimate is based on historical experience and periodic assessment, particularly on accounts that are past due (based upon the terms of the sale). Our periodic assessment is based on our best estimate of amounts that are not recoverable, which includes a present collectability review and forward-looking assessment, where applicable. We write off accounts receivable when we deem them uncollectible and record recoveries of accounts receivable previously written off when received.

Property, Plant and Equipment – Property, plant and equipment (“PP&E”) are stated at cost or fair market value in the case of assets acquired through acquisitions, or otherwise at reduced values to the extent there have been asset impairment write-downs, net of accumulated depreciation and amortization. Major renewals and improvements that increase the life, value, or productive capacity of assets are capitalized in PP&E while maintenance, repairs and minor renewals, including planned maintenance turnarounds, are expensed as incurred. Interest cost related to the construction of qualifying assets is capitalized as part of the construction costs.

For financial reporting purposes, depreciation of the costs of PP&E is computed using the straight-line method over the estimated useful lives of the assets. No provision for depreciation is made on construction in progress or capital spare parts until such time as the relevant assets are put into service. Depreciation expense is recognized in cost of sales or selling, general and administrative expense within the condensed consolidated statements of operations consistent with the utilization of the underlying assets.

When PP&E is retired, sold, or otherwise disposed, the asset’s carrying amount and related accumulated depreciation and amortization is removed from the accounts and any gain or loss is included in other (income) expense, net in our condensed consolidated statements of operations.

Impairment of Long-Lived Assets – Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset (asset group) may not be recoverable. An asset’s fair value must be determined when the carrying amount of an asset (asset group) exceeds the estimated undiscounted future cash flows expected to result from the use of the asset (asset group) and/or its eventual disposition. If assets to be held and used are considered to be impaired, the impairment to be recognized is the amount by which the carrying amounts of the assets exceed the fair values of the assets as measured by the present value of future net cash flows expected to be generated by the assets or their appraised value. In general, our asset groups are reviewed for impairment on a facility-by-facility basis (such as the Cherokee, El Dorado or Pryor Facility) unless it is determined that the asset being evaluated will generate cash flows that are independent from the rest of the facility.

In addition, if the event or change in circumstance relates to the probable sale of an asset (or group of assets), the specific asset (or group of assets) is reviewed for impairment.

For the three and six months ended June 30, 2026, asset write-downs were not material. For the three and six months ended June 30, 2025, we recorded asset write-downs in the amount of $2.5 million and $2.6 million, respectively. These asset write-downs are included in “Other (income) expense, net” on our condensed consolidated statements of operations.

Assets Held For Sale – In general, assets held for sale are reported at the lower of the carrying amounts of the assets or fair values less costs to sell.

In December 2025, we received an offer with respect to a parcel of land we own, for which we are currently negotiating a purchase and sale agreement. As the offer price was less than the carrying value of the land at the time, we recorded an impairment of $1.5 million on the parcel of land.

Assets classified as held for sale on the condensed consolidated balance sheet as of June 30, 2026, reflect the net book value of the parcel of land for which a sale is pending.

Short-Term Financing – Our short-term financing represents the short-term note related to financing of our insurance premium, which is renewed annually.

Contingencies – Certain conditions may exist which may result in a loss, but which will only be resolved when future events occur. We assess such contingent liabilities, and such assessment inherently involves an exercise of judgment. If the assessment of a contingency indicates that it is probable that a loss has been incurred, we accrue for such contingent loss when such loss can be reasonably estimated. If the assessment indicates that a potentially material loss contingency is not probable but reasonably possible, or is probable but cannot be estimated, the nature of the contingent liability, together with an estimate of the range of possible loss if determinable and material, would be disclosed. Estimates of potential legal fees and other directly related costs associated with contingencies are not accrued but rather are expensed as incurred. Loss contingency liabilities are included in current and noncurrent accrued and other liabilities and are based on current estimates that may be revised in the near term. In addition, we recognize contingent gains when such gains are realized or when the contingencies have been resolved (generally at the time a settlement has been reached).

Partial Settlement of Global Industrial Matter and Related Claims

As previously disclosed, since 2016, the Company has been involved in litigation with respect to engineering and procurement contracts related to the construction of the ammonia plant at the El Dorado Facility. On April 2, 2026, the Company, certain of the Company’s wholly owned subsidiaries, and Benham Constructors, LLC (f/k/a Leidos Constructors, LLC, f/k/a SAIC Constructors, LLC) (“Benham”) entered into a Settlement and Mutual Release Agreement (the “Settlement Agreement”), effective March 26, 2026 (“Settlement Effective Date”), to settle certain claims asserted in the following matters: Global Industrial, Inc. d/b/a Global Turnaround (Plaintiff) v. Benham Constructors, LLC, et al (Defendants), and LSB Industries, Inc. et al. (Cross-Claimants and Counter Cross-Defendants) v. Benham Constructors, LLC, et al. (Cross-Defendants and Counter Cross-Claimants), Union County Circuit Court, Civil Division, Case No. 70CV-16-76 (collectively, the “Action”).

Pursuant to the terms of the Settlement Agreement, Benham agreed to pay the Company approximately $20.9 million within 60 days of the Settlement Effective Date. Subject to the terms of the Settlement Agreement, the Company and Benham agreed to dismiss their respective claims in the Action against each other, with prejudice. In addition to the cash component, the dismissal allowed us to reverse $2.9 million of payables related to this matter. The Settlement Agreement does not include any admission of liability by any party. The settlement payment was received during the second quarter of 2026 and recorded as a reduction in the carrying value of plant, property and equipment, which will reduce depreciation expense on a prospective basis.

The Settlement Agreement did not release or otherwise discharge any claims, rights or remedies the Company has, may have had or may have in the future against Leidos Inc. (f/k/a Science Applications International Corporation) or Leidos Engineering, LLC (“Leidos Engineering”), including its claims for fraud and breach of contract. The Company plans to continue its vigorous prosecution of its filed claims against Leidos Inc. and Leidos Engineering and continues to seek actual and punitive damages in excess of $300 million. The trial for the Company’s claims against Leidos Inc. and Leidos Engineering is scheduled to begin in October 2026. We can provide no assurance as to the ultimate outcome of the pending litigation.

Derivatives, Hedges and Financial Instruments – In order to mitigate a portion of the commodity price risk associated with natural gas, which we utilize in our manufacturing process, we periodically enter into natural gas forward contracts or volume purchase commitments. Such contracts are required to be accounted for as derivatives under applicable accounting guidance unless they are eligible for and we elect the normal purchase normal sale (“NPNS”) exception. We are eligible for the NPNS exception when these contracts provide for the purchase of natural gas that will be delivered in quantities expected to be used over a reasonable period of time in the normal course of business and are documented as such. In the event that we have natural gas derivatives that we do not elect or do not qualify for the NPNS exception, we would account for such contracts as derivatives by recognizing them in the balance sheet at fair value with changes in fair value recognized in the statement of operations. Such derivatives are not designated as hedges for accounting purposes.

Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date:

Level 1 - Valuations of assets and liabilities classified as Level 1 are based on quoted prices in active markets for identical contracts.

Level 2 - Valuations of assets and liabilities classified as Level 2 are based on quoted prices for similar contracts and valuation inputs other than quoted prices that are observable for these contracts.

Level 3 - Valuations of assets and liabilities classified as Level 3 are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement.

Leases – We are the lessee in most of the lease arrangements we enter into. We determine if an arrangement is a lease at inception or modification of a contract and classify each lease as either an operating or finance lease based on the terms of the contract. We reassess lease classification subsequent to commencement upon a change to the expected lease term or a modification to the contract. A contract contains a lease if the contract conveys the right to control the use of the identified property or equipment, explicitly or implicitly, for a period of time in exchange for consideration. Control of an underlying asset is conveyed if we obtain the rights to direct the use of and obtain substantially all of the economic benefit from the use of the underlying asset.

An operating lease asset represents our right to use the underlying asset as a lessee for the lease term and an operating lease liability represents our obligation to make lease payments arising from the lease. Currently, most of our leases are classified as operating leases and primarily relate to railcars, other equipment and office space. Our leases that are classified as finance leases primarily relate to railcars. Variable payments are excluded from the present value of lease payments and are recognized in the period in which the payment is made. Our current leases do not contain residual value guarantees. Most of our leases do not include options to extend or terminate the lease prior to the end of the term. Leases with a term of 12 months or less are not recognized in the balance sheet.

As a lessee, we use our incremental borrowing rate based on the lease term and other information available at the commencement date in determining the present value of lease payments. Lease expense is recognized on a straight-line basis over the applicable lease term.

From time to time when we have excess freight capacity, we may sublease a portion of our railcars fleet on a short-term basis to other parties. The income from these subleases is recorded as a component of “Other income, net” in our condensed consolidated statements of operations. For the six months ended June 30, 2026 and 2025, sublease income was not material.

As of June 30, 2026, we had an executed operating lease for railcars with a lease that has not yet commenced. The lease has a term greater than one year, with aggregate lease payments of approximately $6.8 million.

Recently Adopted Accounting Pronouncements

ASU 2025-05 - In July 2025, the Financial Accounting Standards Board (“FASB”) issued ASU 2025-05, Financial Instruments—Credit Losses (Topic 326): Measurements of Credit Losses for Accounts Receivable and Contract Assets (“ASU 2025-05”). The amendments in this ASU provide a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from our sales transactions. The practical expedient permits us to assume current conditions as of the balance sheet date that do not change for the remaining life of the current accounts receivable and current contract assets. Public business entities are not permitted to elect the optional accounting policy to consider subsequent cash collections. We adopted ASU 2025‑05 on January 1, 2026, on a prospective basis. The adoption did not have a material impact on our condensed consolidated financial statements. No changes were made to our credit‑loss estimation methodologies.

Recently Issued Accounting Pronouncements

ASU 2024-03 - In November 2024, the FASB issued Accounting Standards Update (“ASU”) 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This ASU requires an entity to disclose the amounts of purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each relevant expense caption. It also requires an entity to include certain amounts that are already required to be disclosed under current U.S. GAAP in the same disclosure. Additionally, it requires an entity to disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively, and to disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. The amendments in the ASU are effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027, with early adoption permitted. An entity may apply the amendments prospectively for reporting periods after the effective date or retrospectively to any or all prior periods presented in the financial statements. While we are currently evaluating the effect of adopting this ASU on the disclosures in our financial statements, we do not expect this ASU to impact our financial condition and results of operations.

ASU 2025-11 - In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements. The update provides clarifications intended to improve the consistency and usability of interim disclosure requirements, including a comprehensive listing of required interim disclosures and a new disclosure principle for reporting material events occurring after the most recent annual period. The amendments do not change the underlying objectives of interim reporting but are designed to enhance clarity in application. The guidance is effective for us beginning in the fiscal year ending December 31, 2027, including interim

periods within those fiscal years. While we are currently evaluating the effect of adopting this ASU on the disclosures in our financial statements, we do not expect this ASU to impact our financial condition and results of operations.

Changes to U.S. GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standards Codification. We considered all ASUs issued and outstanding or that became effective since January 1, 2026 through the date of these financial statements and determined them not to be applicable or materially impact our financial statements other than those ASUs specifically addressed above.