Commitments and Contingencies	12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	7. Commitments and Contingencies Purchase and Sales Commitments – We have the following significant purchase and sales commitments. Nitric acid supply agreement – EDC is party to an agreement with a customer to supply nitric acid. Under the agreement, EDC agreed to supply between 70,000 to 100,000 tons of nitric acid annually. The initial contract term began in 2021 and extends through 2027 but includes automatic one-year renewal terms unless terminated by either party in writing 180 days before the current contract expiration date. Settlements and Outstanding Natural Gas Purchase Commitments – In February 2021, our manufacturing facility in Pryor, Oklahoma, experienced a service disruption after extreme cold weather caused a surge in natural gas prices in the region, along with the curtailment of gas distribution by the operator of the pipeline that supplies natural gas to the facility. Also, as a result of unprecedented cold weather conditions, the primary natural gas supplier to our manufacturing facility in El Dorado, Arkansas, asserted a claim of force majeure and materially restricted the supply of gas to the facility. At the time of the weather event, we had outstanding natural gas forward contracts and volume purchase commitments that locked in the cost of certain volumes of natural gas. During 2021, as a result of the extreme conditions previously described, we settled all of our natural gas forward contracts and certain volume purchase commitments at that time and recognized a realized gain of approximately $6.8 million, which includes the realized gain discussed under “Natural Gas Contracts” in Note 8 – Derivatives, Hedges and Financial Instruments and was classified as a reduction to cost of sales. As of December 31, 2023 we did not have any natural gas volume purchase commitments. We had standby letters of credit outstanding of approximately $1.7 million as of December 31, 2023. Wastewater Pipeline Operating Agreement – EDC is party to an operating agreement for the right to use a pipeline to dispose its wastewater. EDC is contractually obligated to pay a portion of the operating costs of the pipeline, as incurred, which portion is estimated to be $60,000 to $90,000 annually. The initial term of the operating agreement is through December 2053. Performance and Payment Bonds – We are contingently liable to sureties in respect of certain insurance bonds issued by the sureties in connection with certain contracts entered into by certain subsidiaries in the normal course of business. These insurance bonds primarily represent guarantees of future performance of our subsidiaries. As of December 31, 2023, we have agreed to indemnify the sureties for payments, up to $9.7 million, made by them in respect of such bonds. All of these insurance bonds are expected to expire or be renewed in 2024. Employment and Severance Agreements - We have employment and severance agreements with several of our officers. The agreements, as amended, provide for annual base salaries, bonuses and other benefits commonly found in such agreements. In the event of termination of employment due to a change in control (as defined in the agreements), the agreements provide for payments aggregating $11.1 million as of December 31, 2023. Also see Note 10 – Employee Savings and Stock Purchase Plans, Collective Bargaining Agreements and Executive Benefit Agreement. Environmental Matters Our facilities and operations are subject to numerous federal, state and local environmental laws and to other laws regarding health and safety matters (collectively, the “Environmental and Health Laws”), many of which provide for certain performance obligations, substantial fines and criminal sanctions for violations. Certain Environmental and Health Laws impose strict liability as well as joint and several liability for costs required to remediate and restore sites where hazardous substances, hydrocarbons or solid wastes have been stored or released. We may be required to remediate contaminated properties currently or formerly owned or operated by us or facilities of third parties that received waste generated by our operations regardless of whether such contamination resulted from the conduct of others or from consequences of our own actions that were in compliance with all applicable laws at the time those actions were taken. In addition, claims for damages to persons or property, including natural resources, may result from the environmental, health and safety effects of our operations. There can be no assurance that we will not incur material costs or liabilities in complying with such laws or in paying fines or penalties for violation of such laws. Our insurance may not cover all environmental risks and costs or may not provide sufficient coverage if an environmental claim is made against us. The Environmental and Health Laws and related enforcement policies have in the past resulted and could in the future result, in significant compliance expenses, cleanup costs (for our sites or third-party sites where our wastes were disposed of), penalties or other liabilities relating to the handling, manufacture, use, emission, discharge or disposal of hazardous or toxic materials at or from our facilities or the use or disposal of certain of its chemical products. Further, a number of our facilities are dependent on environmental permits to operate, the loss or modification of which could have a material adverse effect on their operations and our financial condition. Historically, significant capital expenditures have been incurred by our subsidiaries in order to comply with the Environmental and Health Laws and significant capital expenditures are expected to be incurred in the future. We will also be obligated to manage certain discharge water outlets and monitor groundwater contaminants at our facilities should we discontinue the operations of a facility. As of December 31, 2023, our accrued liabilities for environmental matters totaled approximately $0.4 million relating primarily to the matters discussed below. Estimates of the most likely costs for our environmental matters are generally based on preliminary or completed assessment studies, preliminary results of studies, or our experience with other similar matters. It is reasonably possible that a change in the estimate of our liability could occur in the near term. Discharge Water Matters Each of our manufacturing facilities generates process wastewater, which may include cooling tower and boiler water quality control streams, contact storm water and miscellaneous spills and leaks from process equipment. The process water discharge, storm-water runoff and miscellaneous spills and leaks are governed by various permits generally issued by the respective state environmental agencies as authorized and overseen by the U.S. Environmental Protection Agency. These permits limit the type and volume of effluents that can be discharged and control the method of such discharge. In 2017, the PCC filed a Permit Renewal Application for its Non-Hazardous Injection Well Permit at the Pryor Facility. Although the Injection Well Permit expired in 2018, PCC continues to operate the injection well pending the Oklahoma Department of Environmental Quality (“ODEQ”) action on the Permit Renewal Application. Since that time, PCC and ODEQ engaged in ongoing discussions related to the renewal of the injection well to address the wastewater stream. In 2022, ODEQ responded to the application in the form of an information request. PCC submitted a formal response to the information request. In November 2023, PCC and the ODEQ signed a Consent Order setting out the timeline for the review and development of an alternative method of disposing of the wastewater at Pryor. PCC continues to work ODEQ under the terms of the Consent Order to develop options for the treatment and disposal or process water from the facility. We are unable to estimate the costs related to the replacement of the disposal well at this time as there are various alternatives that we plan to explore for which feasibility and cost efficiency have yet to be determined. In 2006, the El Dorado Facility entered into a Consent Administrative Order (“CAO”) that recognizes the presence of nitrate contamination in the shallow groundwater. The CAO required EDC to perform semi-annual groundwater monitoring, continue operation of a groundwater recovery system, submit a human health and ecological risk assessment and submit a remedial action plan. The risk assessment was submitted in 2007. In 2015, the Arkansas Department of Environmental Quality (“ADEQ”) stated that El Dorado Chemical was meeting the requirements of the CAO and should continue semi-annual monitoring. A CAO was signed in 2018, which required an Evaluation Report of the data and effectiveness of the groundwater remedy for nitrate contamination. During 2019, the Evaluation Report was submitted to the ADEQ and the ADEQ approved the report. No liability has been established as of December 31, 2023, in connection with this ADEQ matter. Other Environmental Matters In 2002, certain of our subsidiaries sold substantially all of their operating assets relating to a Kansas chemical facility (the “Hallowell Facility”) but retained ownership of the real property where the facility is located. Our subsidiary retained the obligation to be responsible for and perform the activities under, a previously executed consent order to investigate the surface and subsurface contamination at the real property, develop a corrective action strategy based on the investigation and implement such strategy. In addition, certain of our subsidiaries agreed to indemnify the buyer of such assets for these environmental matters. As the successor to a prior owner of the Hallowell Facility, Chevron Environmental Management Company (“Chevron”) has agreed in writing, within certain limitations, to pay and has been paying one-half of the costs of the investigation and interim measures relating to this matter as approved by the Kansas Department of Health and Environment (the “KDHE”), subject to reallocation. During this process, our subsidiary and Chevron retained an environmental consultant that prepared and performed a corrective action study work plan as to the appropriate method to remediate the Hallowell Facility. During 2020, the KDHE selected a remedy of annual monitoring and the implementation of an Environmental Use Control (“EUC”). This remedy primarily relates to long-term surface and groundwater monitoring to track the natural decline in contamination and is subject to a 5-year re-evaluation with the KDHE. The final remedy, including the EUC, the finalization of the cost estimates and any required financial assurances remains under discussion with the KDHE. Pending the results from our discussions regarding the final remedy, we continue to accrue our allocable portion of costs primarily for the additional testing, monitoring and risk assessments that could be reasonably estimated, which amount is included in our accrued liabilities for environmental matters discussed above. The estimated amount is not discounted to its present value. As more information becomes available, our estimated accrual will be refined, as necessary. Cherokee Nitrogen Company received a Notice of Potential Violation ("NOV") for ten findings identified from an inspection conducted by the U.S. Environmental Protection Agency (“EPA”) Region IV in late 2022. We provided written responses to each finding in the inspection report issued in connection with such inspection and to the Notice of Potential Violations and held direct communications with the EPA related to the matter. A meeting was held with the EPA in January 2024 to discuss the NOV and our subsequent responsive actions. During the meeting, the EPA proposed two alternatives for the penalties related to the violations. We accepted one of the proposed alternatives, which included a cash fine and an investment in a community project, which we accrued as of December 31, 2023. Other Pending, Threatened or Settled Litigation West Fertilizer Matter In 2013, an explosion and fire occurred at the West Fertilizer Company (“West Fertilizer”) located in West, Texas, causing death, bodily injury and substantial property damage. West Fertilizer is not owned or controlled by us, but West Fertilizer was a customer of EDC and purchased fertilizer grade ammonium nitrate (“AN”) from EDC from time to time. LSB and EDC received letters from counsel purporting to represent subrogated insurance carriers, personal injury claimants and persons who suffered property damages informing LSB and EDC that their clients are conducting investigations into the cause of the explosion and fire to determine, among other things, whether AN manufactured by EDC and supplied to West Fertilizer was stored at West Fertilizer at the time of the explosion and, if so, whether such AN may have been one of the contributing factors of the explosion. Initial lawsuits filed named West Fertilizer and another supplier of AN as defendants. In 2014, EDC and LSB were named as defendants, together with other AN manufacturers and brokers that arranged the transport and delivery of AN to West Fertilizer, in the case styled City of West, Texas vs. CF Industries, Inc., et al., in the District Court of McLennan County, Texas. The plaintiffs allege, among other things, that LSB and EDC were negligent in the production and marketing of fertilizer products sold to West Fertilizer, resulting in death, personal injury and property damage. EDC retained a firm specializing in cause and origin investigations with particular experience with fertilizer facilities, to assist EDC in its own investigation. LSB and EDC placed its liability insurance carrier on notice and the carrier is handling the defense for LSB and EDC concerning this matter. Our product liability insurance policies have aggregate limits of general liability totaling $100 million, with a self-insured retention of $0.3 million, which retention limit has been met relating to the West Fertilizer matter. In August 2015, the trial court dismissed plaintiff’s negligence claims against us and EDC based on a duty to inspect but allowed the plaintiffs to proceed on claims for design defect and failure to warn. Subsequently, we and EDC have entered into confidential settlement agreements (with approval of our insurance carriers) with several plaintiffs that had claimed wrongful death and bodily injury and insurance companies asserting subrogation claims for damages from the explosion. While these settlements resolve the claims of a number of the claimants in this matter, we continue to be party to litigation related to the explosion. We continue to defend these lawsuits vigorously and we are unable to estimate a possible range of loss at this time if there is an adverse outcome in this matter. As of December 31, 2023, no liability reserve has been established in connection with this matter. Global Industrial Matter In 2015, we and EDA received written notice from Global Industrial, Inc. (“Global”) of Global’s intention to assert mechanic liens for labor, service, or materials furnished under certain subcontract agreements for the improvement of the ammonia plant (“Ammonia Plant”) at our El Dorado Facility. Global was a subcontractor of Leidos Constructors, LLC (“Leidos”), the general contractor for EDA for the construction of the Ammonia Plant. Leidos terminated the services of Global with respect to their work performed at our El Dorado Facility. LSB and EDA are pursuing the recovery of any damage or loss caused by Global’s work performed through their contract with Leidos at our El Dorado Facility. In March 2016, EDC and LSB were served a summons in a case styled Global Industrial, Inc. d/b/a Global Turnaround vs. Leidos Constructors, LLC et al., in the Circuit Court of Union County, Arkansas (the “Union County Trial Court”), wherein Global sought damages under breach of contract and other claims. At the time of the summons, our accounts payable included invoices totaling approximately $3.5 million related to work performed by Global that is the subject of the claims asserted by Global, but such invoices were not approved by Leidos for payment. We have requested indemnification from Leidos under the terms of our contracts, which they have denied. As a result, we are seeking reimbursement of legal expenses from Leidos under our contracts. We also seek damages from Leidos for their wrongdoing during the expansion, including breach of contract, fraud, professional negligence and gross negligence. During 2018, the Union County Trial Court bifurcated the case into: (1) Global’s claims against Leidos and LSB and (2) the cross-claims between Leidos and LSB. Part (1) of the case was tried in the Union County Trial Court. In March 2020, the Union County Trial Court rendered a judgment and then an amended final judgment in April 2020. The amended final judgment awarded Global (i) approximately $7.4 million (including the $3.5 million referred to above) for labor, service and materials furnished relating to the Ammonia Plant on the basis of what the Union County Trial Court called a claim for “nonpayment of invoices,” (ii) approximately $1.3 million for prejudgment interest on the same claim, and (iii) a lien on certain property and foreclosure on the lien to satisfy the monetary obligations of the judgement. In addition, post-judgment interest will accrue at the annual rate of 4.25% until the judgment is paid. LSB appealed this judgment and on October 18, 2023, the Arkansas Court of Appeals reversed and remanded. The Arkansas Court of Appeal ruled that the lien was defective and therefore invalid, and that the claim for “nonpayment of invoices” was not a cause of action and reversed and remanded the judgment on that claim. In December 2023, the Arkansas Court of Appeal denied Global’s request for rehearing and the Arkansas Supreme Court declined to hear Global’s appeal. As a result, we do not expect to have any material continuing liability related to this matter and have reversed approximately $9.8 million of payables and accrued liabilities, which related to approximately $2.4 million in pre and post-judgement accrued interest and $7.4 million of gross plant, property and equipment. These adjustments also impacted our results of operations for the twelve months ending December 31, 2023, through the reversals of approximately $2.4 million of interest expense and of approximately $1.8 million in previously recognized depreciation expense (a component of cost of sales) on the related plant, property and equipment. LSB retains all of its claims against Leidos and intends to vigorously prosecute those claims and vigorously contest the cross-claims in Part (2) of the matter referred to above. We expect the trial to be set for late summer 2024. No liability was established as of December 31, 2023, in connection with the cross-claims in Part (2) of the matter, except for certain invoices held in accounts payable. We are also involved in various other claims and legal actions (including matters involving gain contingencies) in the ordinary course of our business. While it is possible that the actual claims results could differ from our estimates, after consultation with legal counsel, we believe that any such differences will not have a material effect on our business, financial condition, results of operations or cash flows.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

7. Commitments and Contingencies

Purchase and Sales Commitments – We have the following significant purchase and sales commitments.

Nitric acid supply agreement – EDC is party to an agreement with a customer to supply nitric acid. Under the agreement, EDC agreed to supply between 70,000 to 100,000 tons of nitric acid annually. The initial contract term began in 2021 and extends through 2027 but includes automatic one-year renewal terms unless terminated by either party in writing 180 days before the current contract expiration date.

Settlements and Outstanding Natural Gas Purchase Commitments – In February 2021, our manufacturing facility in Pryor, Oklahoma, experienced a service disruption after extreme cold weather caused a surge in natural gas prices in the region, along with the curtailment of gas distribution by the operator of the pipeline that supplies natural gas to the facility. Also, as a result of unprecedented cold weather conditions, the primary natural gas supplier to our manufacturing facility in El Dorado, Arkansas, asserted a claim of force majeure and materially restricted the supply of gas to the facility. At the time of the weather event, we had outstanding natural gas forward contracts and volume purchase commitments that locked in the cost of certain volumes of natural gas. During 2021, as a result of the extreme conditions previously described, we settled all of our natural gas forward contracts and certain volume purchase commitments at that time and recognized a realized gain of approximately $6.8 million, which includes the realized gain discussed under “Natural Gas Contracts” in Note 8 – Derivatives, Hedges and Financial Instruments and was classified as a reduction to cost of sales. As of December 31, 2023 we did not have any natural gas volume purchase commitments.

We had standby letters of credit outstanding of approximately $1.7 million as of December 31, 2023.

Wastewater Pipeline Operating Agreement – EDC is party to an operating agreement for the right to use a pipeline to dispose its wastewater. EDC is contractually obligated to pay a portion of the operating costs of the pipeline, as incurred, which portion is estimated to be $60,000 to $90,000 annually. The initial term of the operating agreement is through December 2053.

Performance and Payment Bonds – We are contingently liable to sureties in respect of certain insurance bonds issued by the sureties in connection with certain contracts entered into by certain subsidiaries in the normal course of business. These insurance bonds primarily represent guarantees of future performance of our subsidiaries. As of December 31, 2023, we have agreed to indemnify the sureties for payments, up to $9.7 million, made by them in respect of such bonds. All of these insurance bonds are expected to expire or be renewed in 2024.

Employment and Severance Agreements - We have employment and severance agreements with several of our officers. The agreements, as amended, provide for annual base salaries, bonuses and other benefits commonly found in such agreements. In the event of termination of employment due to a change in control (as defined in the agreements), the agreements provide for payments aggregating $11.1 million as of December 31, 2023. Also see Note 10 – Employee Savings and Stock Purchase Plans, Collective Bargaining Agreements and Executive Benefit Agreement.

Environmental Matters

Our facilities and operations are subject to numerous federal, state and local environmental laws and to other laws regarding health and safety matters (collectively, the “Environmental and Health Laws”), many of which provide for certain performance obligations, substantial fines and criminal sanctions for violations. Certain Environmental and Health Laws impose strict liability as well as joint and several liability for costs required to remediate and restore sites where hazardous substances, hydrocarbons or solid wastes have been stored or released. We may be required to remediate contaminated properties currently or formerly owned or operated by us or facilities of third parties that received waste generated by our operations regardless of whether such contamination resulted from the conduct of others or from consequences of our own actions that were in compliance with all applicable laws at the time those actions were taken.

In addition, claims for damages to persons or property, including natural resources, may result from the environmental, health and safety effects of our operations.

There can be no assurance that we will not incur material costs or liabilities in complying with such laws or in paying fines or penalties for violation of such laws. Our insurance may not cover all environmental risks and costs or may not provide sufficient coverage if an environmental claim is made against us. The Environmental and Health Laws and related enforcement policies have in the past resulted and could in the future result, in significant compliance expenses, cleanup costs (for our sites or third-party sites where our wastes were disposed of), penalties or other liabilities relating to the handling, manufacture, use, emission, discharge or disposal of hazardous or toxic materials at or from our facilities or the use or disposal of certain of its chemical products. Further, a

number of our facilities are dependent on environmental permits to operate, the loss or modification of which could have a material adverse effect on their operations and our financial condition.

Historically, significant capital expenditures have been incurred by our subsidiaries in order to comply with the Environmental and Health Laws and significant capital expenditures are expected to be incurred in the future. We will also be obligated to manage certain discharge water outlets and monitor groundwater contaminants at our facilities should we discontinue the operations of a facility.

As of December 31, 2023, our accrued liabilities for environmental matters totaled approximately $0.4 million relating primarily to the matters discussed below. Estimates of the most likely costs for our environmental matters are generally based on preliminary or completed assessment studies, preliminary results of studies, or our experience with other similar matters. It is reasonably possible that a change in the estimate of our liability could occur in the near term.

Discharge Water Matters

Each of our manufacturing facilities generates process wastewater, which may include cooling tower and boiler water quality control streams, contact storm water and miscellaneous spills and leaks from process equipment. The process water discharge, storm-water runoff and miscellaneous spills and leaks are governed by various permits generally issued by the respective state environmental agencies as authorized and overseen by the U.S. Environmental Protection Agency. These permits limit the type and volume of effluents that can be discharged and control the method of such discharge.

In 2017, the PCC filed a Permit Renewal Application for its Non-Hazardous Injection Well Permit at the Pryor Facility. Although the Injection Well Permit expired in 2018, PCC continues to operate the injection well pending the Oklahoma Department of Environmental Quality (“ODEQ”) action on the Permit Renewal Application. Since that time, PCC and ODEQ engaged in ongoing discussions related to the renewal of the injection well to address the wastewater stream. In 2022, ODEQ responded to the application in the form of an information request. PCC submitted a formal response to the information request. In November 2023, PCC and the ODEQ signed a Consent Order setting out the timeline for the review and development of an alternative method of disposing of the wastewater at Pryor. PCC continues to work ODEQ under the terms of the Consent Order to develop options for the treatment and disposal or process water from the facility. We are unable to estimate the costs related to the replacement of the disposal well at this time as there are various alternatives that we plan to explore for which feasibility and cost efficiency have yet to be determined.

In 2006, the El Dorado Facility entered into a Consent Administrative Order (“CAO”) that recognizes the presence of nitrate contamination in the shallow groundwater. The CAO required EDC to perform semi-annual groundwater monitoring, continue operation of a groundwater recovery system, submit a human health and ecological risk assessment and submit a remedial action plan.

The risk assessment was submitted in 2007. In 2015, the Arkansas Department of Environmental Quality (“ADEQ”) stated that El Dorado Chemical was meeting the requirements of the CAO and should continue semi-annual monitoring. A CAO was signed in 2018, which required an Evaluation Report of the data and effectiveness of the groundwater remedy for nitrate contamination. During 2019, the Evaluation Report was submitted to the ADEQ and the ADEQ approved the report. No liability has been established as of December 31, 2023, in connection with this ADEQ matter.

Other Environmental Matters

In 2002, certain of our subsidiaries sold substantially all of their operating assets relating to a Kansas chemical facility (the “Hallowell Facility”) but retained ownership of the real property where the facility is located. Our subsidiary retained the obligation to be responsible for and perform the activities under, a previously executed consent order to investigate the surface and subsurface contamination at the real property, develop a corrective action strategy based on the investigation and implement such strategy. In addition, certain of our subsidiaries agreed to indemnify the buyer of such assets for these environmental matters.

As the successor to a prior owner of the Hallowell Facility, Chevron Environmental Management Company (“Chevron”) has agreed in writing, within certain limitations, to pay and has been paying one-half of the costs of the investigation and interim measures relating to this matter as approved by the Kansas Department of Health and Environment (the “KDHE”), subject to reallocation.

During this process, our subsidiary and Chevron retained an environmental consultant that prepared and performed a corrective action study work plan as to the appropriate method to remediate the Hallowell Facility. During 2020, the KDHE selected a remedy of annual monitoring and the implementation of an Environmental Use Control (“EUC”). This remedy primarily relates to long-term surface and groundwater monitoring to track the natural decline in contamination and is subject to a 5-year re-evaluation with the KDHE.

The final remedy, including the EUC, the finalization of the cost estimates and any required financial assurances remains under discussion with the KDHE. Pending the results from our discussions regarding the final remedy, we continue to accrue our allocable portion of costs primarily for the additional testing, monitoring and risk assessments that could be reasonably estimated, which amount is included in our accrued liabilities for environmental matters discussed above. The estimated amount is not discounted to its present value. As more information becomes available, our estimated accrual will be refined, as necessary.

Cherokee Nitrogen Company received a Notice of Potential Violation ("NOV") for ten findings identified from an inspection conducted by the U.S. Environmental Protection Agency (“EPA”) Region IV in late 2022. We provided written responses to each finding in the inspection report issued in connection with such inspection and to the Notice of Potential Violations and held direct communications with the EPA related to the matter. A meeting was held with the EPA in January 2024 to discuss the NOV and our subsequent responsive actions. During the meeting, the EPA proposed two alternatives for the penalties related to the violations. We accepted one of the proposed alternatives, which included a cash fine and an investment in a community project, which we accrued as of December 31, 2023.

Other Pending, Threatened or Settled Litigation

West Fertilizer Matter

In 2013, an explosion and fire occurred at the West Fertilizer Company (“West Fertilizer”) located in West, Texas, causing death, bodily injury and substantial property damage. West Fertilizer is not owned or controlled by us, but West Fertilizer was a customer of EDC and purchased fertilizer grade ammonium nitrate (“AN”) from EDC from time to time. LSB and EDC received letters from counsel purporting to represent subrogated insurance carriers, personal injury claimants and persons who suffered property damages informing LSB and EDC that their clients are conducting investigations into the cause of the explosion and fire to determine, among other things, whether AN manufactured by EDC and supplied to West Fertilizer was stored at West Fertilizer at the time of the explosion and, if so, whether such AN may have been one of the contributing factors of the explosion. Initial lawsuits filed named West Fertilizer and another supplier of AN as defendants.

In 2014, EDC and LSB were named as defendants, together with other AN manufacturers and brokers that arranged the transport and delivery of AN to West Fertilizer, in the case styled City of West, Texas vs. CF Industries, Inc., et al., in the District Court of McLennan County, Texas. The plaintiffs allege, among other things, that LSB and EDC were negligent in the production and marketing of fertilizer products sold to West Fertilizer, resulting in death, personal injury and property damage. EDC retained a firm specializing in cause and origin investigations with particular experience with fertilizer facilities, to assist EDC in its own investigation. LSB and EDC placed its liability insurance carrier on notice and the carrier is handling the defense for LSB and EDC concerning this matter.

Our product liability insurance policies have aggregate limits of general liability totaling $100 million, with a self-insured retention of $0.3 million, which retention limit has been met relating to the West Fertilizer matter. In August 2015, the trial court dismissed plaintiff’s negligence claims against us and EDC based on a duty to inspect but allowed the plaintiffs to proceed on claims for design defect and failure to warn.

Subsequently, we and EDC have entered into confidential settlement agreements (with approval of our insurance carriers) with several plaintiffs that had claimed wrongful death and bodily injury and insurance companies asserting subrogation claims for damages from the explosion. While these settlements resolve the claims of a number of the claimants in this matter, we continue to be party to litigation related to the explosion. We continue to defend these lawsuits vigorously and we are unable to estimate a possible range of loss at this time if there is an adverse outcome in this matter. As of December 31, 2023, no liability reserve has been established in connection with this matter.

Global Industrial Matter

In 2015, we and EDA received written notice from Global Industrial, Inc. (“Global”) of Global’s intention to assert mechanic liens for labor, service, or materials furnished under certain subcontract agreements for the improvement of the ammonia plant (“Ammonia Plant”) at our El Dorado Facility. Global was a subcontractor of Leidos Constructors, LLC (“Leidos”), the general contractor for EDA for the construction of the Ammonia Plant. Leidos terminated the services of Global with respect to their work performed at our El Dorado Facility.

LSB and EDA are pursuing the recovery of any damage or loss caused by Global’s work performed through their contract with Leidos at our El Dorado Facility. In March 2016, EDC and LSB were served a summons in a case styled Global Industrial, Inc. d/b/a Global Turnaround vs. Leidos Constructors, LLC et al., in the Circuit Court of Union County, Arkansas (the “Union County Trial Court”), wherein Global sought damages under breach of contract and other claims. At the time of the summons, our accounts payable included invoices totaling approximately $3.5 million related to work performed by Global that is the subject of the claims asserted by Global, but such invoices were not approved by Leidos for payment. We have requested indemnification from Leidos under the terms of our contracts, which they have denied. As a result, we are seeking reimbursement of legal expenses from Leidos under our contracts. We also seek damages from Leidos for their wrongdoing during the expansion, including breach of contract, fraud, professional negligence and gross negligence.

During 2018, the Union County Trial Court bifurcated the case into: (1) Global’s claims against Leidos and LSB and (2) the cross-claims between Leidos and LSB. Part (1) of the case was tried in the Union County Trial Court. In March 2020, the Union County

Trial Court rendered a judgment and then an amended final judgment in April 2020. The amended final judgment awarded Global (i) approximately $7.4 million (including the $3.5 million referred to above) for labor, service and materials furnished relating to the Ammonia Plant on the basis of what the Union County Trial Court called a claim for “nonpayment of invoices,” (ii) approximately $1.3 million for prejudgment interest on the same claim, and (iii) a lien on certain property and foreclosure on the lien to satisfy the monetary obligations of the judgement. In addition, post-judgment interest will accrue at the annual rate of 4.25% until the judgment is paid. LSB appealed this judgment and on October 18, 2023, the Arkansas Court of Appeals reversed and remanded. The Arkansas Court of Appeal ruled that the lien was defective and therefore invalid, and that the claim for “nonpayment of invoices” was not a cause of action and reversed and remanded the judgment on that claim. In December 2023, the Arkansas Court of Appeal denied Global’s request for rehearing and the Arkansas Supreme Court declined to hear Global’s appeal. As a result, we do not expect to have any material continuing liability related to this matter and have reversed approximately $9.8 million of payables and accrued liabilities, which related to approximately $2.4 million in pre and post-judgement accrued interest and $7.4 million of gross plant, property and equipment. These adjustments also impacted our results of operations for the twelve months ending December 31, 2023, through the reversals of approximately $2.4 million of interest expense and of approximately $1.8 million in previously recognized depreciation expense (a component of cost of sales) on the related plant, property and equipment.

LSB retains all of its claims against Leidos and intends to vigorously prosecute those claims and vigorously contest the cross-claims in Part (2) of the matter referred to above. We expect the trial to be set for late summer 2024.

No liability was established as of December 31, 2023, in connection with the cross-claims in Part (2) of the matter, except for certain invoices held in accounts payable.

We are also involved in various other claims and legal actions (including matters involving gain contingencies) in the ordinary course of our business. While it is possible that the actual claims results could differ from our estimates, after consultation with legal counsel, we believe that any such differences will not have a material effect on our business, financial condition, results of operations or cash flows.