$ACA Risk Factor changes from 00/02/24/23/2023 to 00/02/23/24/2024

Item 1A.”Governmental Regulation.Construction Products. Arcosa’s Construction Products segment is subject to regulation by the U.S. Mine Safety and Health Administration (“MSHA”), the Health-Safety and Reclamation Code of Ministry of Mines for British Columbia, and various state agencies, and certain specialty materials are regulated by the U.S. Food and Drug Administration (“FDA”).Engineered Structures. The primary regulatory and industry authorities involved in the regulation of the inland barge industry are the U.S. Coast Guard, the U.S. National Transportation Safety Board, the U.S.S. These organizations establish safety criteria, investigate vessel accidents, and recommend improved safety standards. All such agencies and authorities promulgate rules, regulations, specifications, and operating standards affecting rail-related safety standards for railroad equipment. Occupational Safety and Health Administration and Similar Regulations. In addition to the regulations described above, our operations are subject to regulation of health and safety matters by the U.S. Occupational Safety and Health Administration (“OSHA”) and, within our Construction Products segment, MSHA. We believe that we employ appropriate precautions to protect our employees and others from workplace injuries and harmful exposure to materials handled and managed at our facilities.S. or in foreign jurisdictions in which we operate could increase our operating costs. While we do not anticipate having to make material expenditures in order to remain in substantial compliance with health and safety laws and regulations, we are unable to predict the ultimate cost of compliance.International Regulations. We ship raw materials to Mexico and manufacture products in Mexico that are sold in the U.S. or elsewhere, which are subject to customs and other regulations. In addition, we are subject to other governmental regulations and authorities in Mexico and other countries where we conduct business that regulate products manufactured, sold, or used in those countries. Environmental, Health, and Safety. We are subject to federal, state, and international environmental, health, and safety laws and regulations in the U.S.S. Environmental Protection Agency (“USEPA”). These include laws regulating air emissions, water discharge, hazardous materials, and waste management. We have an environmental management structure designed to facilitate and support our compliance with these requirements globally. Although it is our intent to comply with all such requirements and regulations, we cannot provide assurance that we are at all times in compliance. Environmental requirements are complex, change frequently, and have tended to become more stringent over time. Accordingly, we cannot assure that environmental requirements will not change or become more stringent over time or that our eventual environmental costs and liabilities will not be material.Certain environmental laws assess liability on current or previous owners or operators of real property for the cost of removal or remediation of hazardous substances. At this time, we are involved in various stages of investigation and cleanup related to environmental remediation matters at certain of our facilities.We cannot ensure that our eventual environmental remediation costs and liabilities will not exceed the amount of our current reserves. In the event that such liabilities were to significantly exceed the amounts recorded, our results of operations could be materially adversely affected. See “Critical Accounting Policies and Estimates” in Item 7.See Item 1A for further discussion of risk factors with regard to environmental, governmental, and other matters.12Table of ContentsInformation About Our Executive Officers. The following table sets forth the names and ages of all our executive officers, their positions and offices presently held by them, and the year each person first became an officer. Carrillo served as the Senior Vice President and Group President of Construction, Energy, Marine and Components of Trinity Industries, Inc. ("Trinity"). From 2012 to February 2018, Mr. Carrillo served as the Chief Executive Officer of Orbia Advance Corporation (formerly known as Mexichem S.A.B. de C.V.), a publicly traded global specialty chemical company. Prior to joining Orbia, Mr. Carrillo spent 16 years at Trinity where he served as Senior Vice President and Group President of Trinity’s Energy Equipment Group and was responsible for Trinity’s Mexico operations. Mr. Pepper Snapple Group, Inc. from 2015 to 2018. Mr. Carrillo currently serves as a director of NRG Energy, Inc. where he was appointed in 2019.Gail M. Peck was appointed as Arcosa’s Chief Financial Officer in May 2021. Previously, she served as the Senior Vice President, Finance and Treasurer at Arcosa. Peck served as Vice President, Finance and Treasurer of Trinity. From 2004 to 2009, she served as Vice President and Treasurer for Centex Corporation, a diversified building company.Reid S. Essl serves as a Group President at Arcosa. Essl served as the President of Trinity Construction Materials and from 2013 to 2016, Mr. Essl served as the Group Chief Financial Officer of the Construction, Energy, Marine, and Components businesses of Trinity. In his 14 years at Trinity, Mr. Essl held a variety of operational, financial, strategic planning, and business development positions. Kerry S. Cole serves as a Group President at Arcosa. Cole served as President of Trinity Electrical Products which included oversight for the Trinity Structural Towers and Trinity Meyer Utility Structures business units. Prior to this role, Mr. Cole served as President of Trinity Structural Towers business unit from 2007 to 2016. From 2000 to 2007, he served in a variety of operations and manufacturing leadership positions at Trinity spanning Mining and Construction Equipment, Heads, and Structural Bridge business units. Jesse E. Collins, Jr. serves as a Group President at Arcosa. Collins served as the President of Trinity Parts and Components, which included McConway & Torley, Standard Forged Products, and the business of McKees Rocks Forgings. From 2014 to 2016, he served as President of Trinity Cryogenics. From 2008 to 2013, Mr. Collins served as Executive Vice President and Chief Operating Officer at Broadwind Energy serving wind energy, transportation, and infrastructure markets, prior to which he held various management and executive positions at Trinity from 1993 to 2007.Bryan P. Stevenson serves as the Chief Legal Officer at Arcosa. Stevenson was the Vice President, Associate General Counsel and Corporate Secretary for Trinity. Prior to joining Trinity, Mr. Stevenson was Vice President, General Counsel and Secretary for CarParts, Inc. (formerly known as U.S. Auto Parts Network, Inc.), an online provider of automotive parts, from 2011 to 2015. Eric D. Hurst has served as Arcosa's Corporate Controller since 2018 and was appointed Vice President, Controller in 2021 and Principal Accounting Officer in 2023. Hurst held several roles at Trinity, including Director of Leasing Analysis and Director of Technical Accounting. Hurst worked in the audit practice of Ernst & Young.13Table of ContentsItem 1A. Risk Factors.Arcosa's business, liquidity and financial condition, results of operations, and stock price may be impacted by a number of factors. In addition to the factors discussed elsewhere in this report, the following risks and uncertainties could materially harm its business, liquidity and financial condition, results of operations, or stock price, including causing its actual results to differ materially from those projected in any forward-looking statements. The following list of material risk factors is not all-inclusive or necessarily in order of importance. Additional risks and uncertainties not presently known to Arcosa or that it currently deems immaterial also may materially adversely affect it in future periods.Risks Related to our Business and Operations.The seasonality of Arcosa's business and its susceptibility to severe and prolonged periods of adverse weather and other conditions could have a material adverse effect on us.Demand for Arcosa's products in some markets is typically seasonal, with periods of snow or heavy rain negatively affecting construction activity. For example, sales of Arcosa's products are somewhat higher from spring through autumn when construction activity is greatest. Construction activity declines in these markets during the winter months in particular due to inclement weather, frozen ground, and fewer hours of daylight. This general seasonality of Arcosa's business and any severe or prolonged adverse weather conditions or other similar events could have a material adverse effect on Arcosa's business.Delays in construction projects and any failure to manage Arcosa’s inventory could have a material adverse effect on us.Many of Arcosa’s products are used in large-scale projects which generally require a significant amount of planning and preparation and which can be delayed and rescheduled for a number of reasons, including customer labor availability, difficulties in complying with environmental and other government regulations or obtaining permits, financing issues, changes in project priorities, additional time required to acquire rights-of-way or property rights, unanticipated soil conditions, or health-related shutdowns or other work stoppages. These delays may create unplanned downtime, increasing costs and inefficiencies in Arcosa’s operations, and increased levels of excess inventory.Additionally, Arcosa maintains an inventory of certain products that meet standard specifications and are ultimately purchased by a variety of end users. Arcosa forecasts demand for these products to ensure that it keeps sufficient inventory levels of certain products that Arcosa expects to be in high demand and limits its inventory for which Arcosa does not expect much interest. Any delays in construction projects and Arcosa’s customers’ orders or any inability to manage Arcosa’s inventory could have a material adverse effect on Arcosa's business.Arcosa operates in highly competitive industries. Arcosa may not be able to sustain its market positions, which may impact its financial results.Arcosa faces intense competition in all geographic markets and each industry sector in which it operates. If Arcosa is unable to successfully compete or if the cost of successfully competing is significant, the effects of such competition, which is often intense, could reduce Arcosa’s revenues and operating profits, limit Arcosa’s ability to grow, increase pricing pressure on Arcosa’s products, and otherwise affect Arcosa’s financial results.Arcosa's inability to deliver its backlog on time could affect its revenues, future sales and profitability and its relationships with customers.At December 31, 2023, Arcosa's backlog was approximately $1.4 billion within our Engineered Structures and $253.7 million within our Transportation Products segments. Arcosa's ability to meet customer delivery schedules for backlog is dependent on a number of factors including, but not limited to, sufficient manufacturing plant capacity, adequate supply channel access to raw materials and other inventory required for production, an adequately trained 14Table of Contentsand capable workforce, engineering expertise, and appropriate planning and scheduling of manufacturing resources. We may also encounter capacity limitations due to changes in demand despite our forecasting efforts. Some of the contracts we enter into with our customers, such as for barges, traffic structures and wind towers, require long manufacturing lead times and contain penalty clauses or liquidated damages provisions related to late delivery. Failure to deliver in accordance with contract terms and customer expectations could subject us to financial penalties, damage existing customer relationships, increase our costs, reduce our sales and have a material adverse effect on Arcosa's business.Arcosa’s success depends on the continued services of its executive team and key management employees, none of whom currently have an employment agreement with Arcosa. Arcosa may not be able to retain the services of its executives and key management in the future. The loss of the services of one or more executives or key members of Arcosa’s management team, or Arcosa’s inability to successfully develop talent for succession planning, could result in increased costs associated with attracting and retaining a replacement and could disrupt Arcosa’s operations and result in a loss of revenues.The inability to hire and retain skilled or professional labor could adversely impact Arcosa’s operations.Arcosa depends on professional labor across its businesses and skilled labor in the manufacture, maintenance, and repair of Arcosa’s products. Arcosa competes for such personnel with other companies, including public and private company competitors who may periodically offer more favorable terms of employment.Failure to maintain safe work sites could result in losses, which could adversely affect our business and reputation. Sites such as these are subject to potentially dangerous workplace risks. Safety is a primary focus of our business and is critical to our reputation and performance. Unsafe work conditions, or any perceived failure to protect the health and safety of our employees, can also increase employee turnover, which increases our overall operating costs. If we fail to implement effective safety procedures, our employees and others could be injured, the completion of a project could be delayed, or we could be exposed to investigations and possible litigation, which may be significant. Our failure to maintain adequate safety standards through our safety programs could also result in reduced profitability or the loss of customers.Arcosa is a party to collective bargaining agreements with various labor unions at some of Arcosa’s operations in the U.S. and Canada and all of Arcosa’s operations in Mexico. Disputes with regard to the terms of these agreements or Arcosa’s potential inability to negotiate acceptable contracts with these unions in the future could result in, among other things, strikes, work stoppages, or other slowdowns by the affected workers and Arcosa could experience a significant disruption of its operations and higher ongoing labor costs. In some instances, Arcosa relies on a limited number of suppliers for certain raw materials, parts, and components needed in its production.Arcosa owns and operates manufacturing facilities of various ages and levels of automated control and relies on a number of third parties as part of Arcosa’s supply chain, including for the efficient distribution of products to Arcosa’s customers. Any disruption at one of Arcosa’s manufacturing facilities or within Arcosa’s supply chain could prevent Arcosa from meeting demand or require Arcosa to incur unplanned capital expenditures. In addition, some of the 15Table of Contentsequipment that Arcosa operates is old and some is highly technical. Both older equipment and more complex equipment may break down, resulting in unplanned downtime. Certain raw materials, parts, and components for Arcosa's products are currently available from a limited number of suppliers and, as a result, Arcosa may have limited control over pricing, availability, and delivery schedules. If Arcosa is unable to purchase a sufficient quantity of raw materials, parts, and components on a timely basis, Arcosa could face disruptions in its production and incur delays while it attempts to engage alternative suppliers. Fewer suppliers could require Arcosa to source unproven and distant supply alternatives. An unanticipated interruption in Arcosa's supply chain could have an adverse impact on both Arcosa's margins and production schedules. Any material disruption at one or more of Arcosa’s facilities or those of Arcosa’s customers or suppliers or otherwise within Arcosa’s supply chain, whether as a result of downtime, facility damage, an inability to deliver Arcosa’s products or otherwise, could prevent Arcosa from meeting demand, require Arcosa to incur unplanned capital expenditures, or cause other material disruption to Arcosa’s operations, any of which could have a material adverse effect on Arcosa’s business.Arcosa operates a substantial amount of equipment at its production facilities, several of which are located in areas that may experience adverse weather, including extreme temperatures, tornados, and hurricanes, or are located on navigable waterways, subject to potential flooding and other excessive or low water conditions on one or more rivers that serve Arcosa facilities. An interruption in operations at Arcosa’s facilities could reduce or prevent Arcosa’s production, delivery, service, or repair of Arcosa’s products and increase Arcosa’s costs and expenses. A halt of production at any of Arcosa’s manufacturing facilities could severely affect delivery times to Arcosa’s customers. In addition, insurance may not adequately compensate Arcosa for any losses incurred as a result of natural or other disasters, which may adversely affect Arcosa’s financial condition. Any significant delay in deliveries not otherwise contractually mitigated by favorable force majeure or other provisions could result in cancellation of all or a portion of Arcosa’s orders, cause Arcosa to lose future sales, and negatively affect Arcosa’s reputation and Arcosa’s results of operations. During 2022 and 2023, Arcosa's Engineered Structures and Transportation Products segments were impacted by elevated steel costs, which negatively impacted order levels for wind towers and barges. Market steel prices may continue to exhibit periods of volatility and a continued increase in steel prices could continue to negatively impact demand for Arcosa's products like wind towers and barges. Steel prices may experience further volatility as a result of scrap surcharges assessed by steel mills, tariffs, and other market factors. Furthermore, consolidation of steel producers may lead to decreased competition in the industry and result in increased steel prices. The availability of natural aggregates reserves, specialty materials reserves, and supply stock for recycled aggregates could have a material adverse effect on Arcosa's ability to cost-effectively manufacture and sell its products. The success and viability of these operations depend on the accuracy of Arcosa’s reserve estimates, the costs of production and the ability to economically distribute the natural aggregates and specialty materials. Estimates for natural aggregate and specialty materials reserves and for the costs of production of such reserves depend upon a variety of factors and assumptions, many of which involve uncertainties beyond Arcosa’s control, such as geological and mining conditions that may not be identifiable. In addition, Arcosa's success in recovering natural aggregates and specialty materials depends on the ability to secure new reserve locations and permits to mine such reserves in areas that make distribution of materials economically viable. Inaccuracies in reserve estimates and production costs, and the inability to secure locations and permits for future operations could negatively affect our results of operations. The success and viability of Arcosa's recycled aggregates operation depends on Arcosa's success in procuring supply stock for processing recycled materials into recycled aggregates. The inability to maintain and secure locations and permits for recycled aggregates operations could negatively affect our results of operations.Reductions in the availability of energy supplies or an increase in energy costs may increase Arcosa’s operating costs.Arcosa uses electricity and various gases, including natural gas, at Arcosa’s manufacturing facilities and uses diesel fuel in vehicles to transport Arcosa’s products to customers and to operate its plant equipment. An outbreak or escalation of hostilities between the U.S. Additionally, extreme weather conditions such as extreme temperatures, hurricanes, tornadoes, or floods could result in varying states of disaster and lead to disruptions to the delivery and supply of petroleum and/or natural gas, including rationing thereof, or an increase in natural gas prices, electricity prices, or other general energy costs.Some of the markets Arcosa serves have a limited number of customers. The volumes purchased by customers in each of Arcosa’s business segments vary from year to year, and not all customers make purchases every year. Furthermore, the timing of the completion, delivery, and customer acceptance of orders, including backlog orders, may cause Arcosa's revenues and income from operations to vary substantially each quarter.1% of our consolidated revenues in 2023 down from 9.3% of consolidated revenues in 2022.Any material nonpayment or nonperformance by any of our customers could have a material adverse effect on our business and results of operations.Any material nonpayment or nonperformance by any of our customers could have a material adverse effect on our revenue and cash flows. While our contracts with our customers, including backlog orders, include terms and provisions that protect us in the event of a breach, we may be unable to enforce payment or performance obligations in a timely manner or at all or recover the entire amount we anticipated receiving under such contract. If we were to pursue legal remedies against a customer that failed to purchase the contracted amount of product under a fixed-volume contract or failed to satisfy the take-or-pay commitment under a take-or-pay contract, we may 17Table of Contentsreceive significantly less in a judgment or settlement of any claimed breach than we would have received had the customer fully performed under the contract. In the event of any customer's breach, we may also choose to renegotiate any disputed contract on less favorable terms (including with respect to price and volume) in order to preserve the relationship with that customer.Defects in materials and workmanship could harm our reputation, expose us to product warranty or product liability claims, decrease demand for products, or materially harm existing or prospective customer relationships.A defect in materials or components from suppliers, our materials, or in the manufacturing of our products could result in product warranty and product liability claims, decrease demand for products, or materially harm existing or prospective customer relationships. Arcosa may be subject to significant warranty claims in the future, such as multiple claims based on one defect repeated throughout Arcosa's production process or claims for which the cost of shipping, repairing, or replacing the defective part, component, or material is highly disproportionate to the original price. Responding to such defects may also include costs related to disassembly of our products and transportation of the products from the field to our facilities and returning the products to the customer, a change in our manufacturing processes, recall of previously manufactured products, or personal injury claims. Any of these outcomes could result in significant expense and materially harm our existing or prospective customer relationships and reputation.Some of Arcosa’s products are sold to contractors, distributors, installers, and rental companies who may misuse, abuse, improperly install, or improperly or inadequately maintain or repair such products, thereby potentially exposing Arcosa to claims that could increase Arcosa’s costs and weaken Arcosa’s liquidity and financial condition.The products Arcosa manufactures are designed to work optimally when properly assembled, operated, installed, repaired, and maintained. For example, Arcosa's shoring products and barges are often subsequently rented or leased by Arcosa's customers to third parties who may misuse or improperly operate these products. If this or similar instances of misuse or improper operation were to occur, Arcosa may be subjected to claims or litigation associated with personal or bodily injuries or death and property damage.Insurance coverage could be costly, unavailable, or inadequate.Arcosa is subject to potential liability for third-party claims alleging property damage and personal and bodily injury or death arising from the use of or exposure to Arcosa’s products, especially in connection with products Arcosa manufactures that its customers use to transport hazardous, flammable, toxic, or explosive materials. Arcosa’s businesses are subject to losses arising from property damages or losses from business interruption. As policies expire, premiums for renewed or new coverage may further increase and/or require that Arcosa increase its self-insured retention, deductibles, or overall limits. Arcosa maintains primary coverage and excess coverage policies for liability claims as well as property damage. An unusually large liability claim, property loss claim, business interruption claim, or a string of claims coupled with an unusually large damage award could exceed Arcosa’s available insurance coverage. Moreover, any accident or incident involving Arcosa’s businesses in general or Arcosa or Arcosa’s products specifically, even if Arcosa is fully insured, contractually indemnified, or not held to be liable, could negatively affect Arcosa’s reputation among customers and the public. The ability of Arcosa to insure against the risks described in this Item 1A is limited by the applicable insurance markets, which may be costly, unavailable or inadequate.Arcosa's indebtedness restricts its current and future operations, which could adversely affect its ability to respond to changes in its business and manage its operations. The Credit Agreement also requires us to maintain compliance with financial covenants, and a change of control (as defined in the applicable Financing Document) could result in a default or prepayment event under the applicable Financing Document. The breach of any of these covenants 18Table of Contentsor restrictions could result in a default under the Financing Documents, our inability to access the liquidity provided by the Credit Agreement, and the acceleration of the indebtedness under the Financing Documents.Borrowings under the Credit Agreement incur interest which is variable based on fluctuations in the referenced Secured Overnight Financing Rate ("SOFR"). Increases in the referenced SOFR will increase Arcosa's borrowing costs and negatively impact financial results and cash flows. Increases in interest rates have resulted in higher interest expense related to borrowings under our Financing Documents year over year. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources.” Arcosa's ability to comply with these agreements may be affected by events beyond its control, including prevailing economic, financial, and industry conditions.Arcosa may be required to reduce the value of Arcosa’s long-lived assets, including intangible assets and/or goodwill, which would weaken Arcosa’s financial results.Arcosa periodically evaluates for potential impairment the carrying values of Arcosa’s long-lived assets, including intangible assets, to be held and used. The carrying value of a long-lived asset to be held and used is considered impaired when the carrying value is not recoverable through undiscounted future cash flows and the fair value of the asset is less than the carrying value. Fair value is determined primarily using the anticipated cash flows discounted at a rate commensurate with the risks involved or market quotes as available. Impairment losses on long-lived assets held for sale are determined in a similar manner, except that fair values are reduced commensurate with the estimated cost to dispose of the assets. In addition, goodwill is required to be tested for impairment annually or on an interim basis whenever events or circumstances change indicating that the carrying amount of the goodwill might be impaired.Certain non-cash impairments may result from a change in our strategic goals, business direction, changes in market interest rates, or other factors relating to the overall business environment. Any impairment of the value of goodwill or other intangible assets recorded in connection with previous acquisitions would result in a non-cash charge against earnings, which could have a material adverse effect on our financial condition and results of operations.Risks Related to Economic, Geopolitical and Legal Factors.Pandemics, epidemics, or other public health emergencies, as well as the governmental reaction thereto, may adversely affect Arcosa’s business. Any future similar public health emergency could negatively impact our business in a number of ways, including the health of our employees and employee productivity, the availability and pricing of supplies and raw materials, our ability to fulfill customer orders, and the availability of our transportation and distribution networks. For example, if one or more of Arcosa’s facilities become subject to closure in connection with a public health emergency, the business as a whole could be materially affected. Arcosa relies on government personnel to conduct certain routine business processes related to the inspection and delivery of certain products that, if disrupted, could have an immediate impact on Arcosa's revenues and business. The negative impact on the economy from a pandemic, epidemic or other public health emergency could also impact our customers in similar ways, causing customers to postpone projects, cancel or delay orders, or file bankruptcy. A pandemic, epidemic, or other public health emergency could also disrupt Arcosa's cross-border business transactions and activities. During the COVID-19 pandemic, governments in the United States and elsewhere in the world implemented strict measures to help control the spread of the virus, including quarantines, travel restrictions, business curtailments, and other measures. Such actions may impair or prevent Arcosa from continuing its operations and business arrangements outside the United States.Instability in the economy or negative conditions in credit markets may adversely affect our business by limiting Arcosa's or its customers' and suppliers' access to credit.Instability in the global economy or negative conditions in the global credit markets that limit or impair our access to credit may adversely affect our business. Any downgrades in our credit ratings may make raising capital more difficult, increase the cost and 19Table of Contentsaffect the terms of future borrowings, affect the terms under which we purchase goods and services and limit our ability to take advantage of potential business opportunities. We are also exposed to risks associated with the creditworthiness of our customers and suppliers. For example, if volatile conditions in the global credit markets such as rising interest rates and tightening of credit standards limit our customers' access to credit (or increase the cost of obtaining credit), product order volumes may decrease, or customers may default on payments owed to Arcosa. Likewise, if Arcosa's suppliers face challenges obtaining credit, selling their products to customers that require purchasing credit, or otherwise operating their businesses, the supply of materials Arcosa purchases from them to manufacture its products may be interrupted. These events or a more general economic downturn could lead to a reduction in orders for Arcosa’s products, requests for deferred deliveries of backlog orders and make it difficult to collect on accounts receivable, which could result in lower revenue or increased operating costs.Arcosa and its customers participate in cyclical industries, which are subject to downturns.A majority of Arcosa's revenue is from customers who are in industries and businesses that are cyclical in nature which may result in decreased demand for Arcosa's products and negatively affect the collectability of receivables. For example, demand for our construction products is driven in large part by residential and commercial construction spending and by population and economic growth which typically slow during a downturn. The barge industry in particular has previously experienced sharp cyclical downturns and at such times operated with a minimal backlog. In addition, since Arcosa's operations are in a variety of geographic markets, its businesses are subject to differing economic conditions in each such geographic market. While the business cycles of Arcosa’s different operations may not typically coincide, an economic downturn could affect disparate cycles contemporaneously.Decreased demand could result in lower sales volumes, lower prices, a slowdown in production at our facilities and/or a decline in or loss of profits. In addition, an economic downturn may negatively affect the collectability of accounts receivable. Any of the foregoing market or industry conditions or events could result in reductions in Arcosa’s revenues, or increased operating costs.The impact of increased prices and inflation on principal raw material prices, including steel with respect to the order of new barges or wind towers, could negatively impact Arcosa's performance and financial results.Increased inflation, including rising prices for raw materials such as steel, fuel, parts and components, freight, packaging, supplies, labor and energy, increases our costs to manufacture and distribute our products. We use market prices for materials, fuel, and parts and components, and may be unable to pass these rising costs on to our customers. While Arcosa cannot predict the extent to which inflation may continue to increase, increases in the price of steel have and could continue to impact a customer's decision to place or delay orders for new barges or wind towers. Other inflationary pressures may generally result in a reduction in construction activity, which could have a material adverse effect on our business. Under varying circumstances, Arcosa may take actions to minimize these inflationary risks, but such efforts may not be effective in mitigating the impact on Arcosa's margins. Arcosa's revenues or operating costs may be negatively affected if we are unable to mitigate the impact of these cost increases through contractual means or otherwise offset the effect of these cost increases.S., particularly Mexico, could decrease Arcosa’s profitability.Arcosa’s operations outside of the U.S. Violence in Mexico associated with drug trafficking is continuing. Arcosa has not, to date, been materially affected by any of these risks, but Arcosa cannot predict the likelihood of future effects from such risks or any resulting adverse impact on Arcosa’s business. Arcosa ships raw materials to Mexico and manufactures products in Mexico that are sold in the U.S. or elsewhere, which are subject to customs and other regulations. Any shutdown or delays at the U.S./Mexico border could affect our ability to transport or import our products manufactured in Mexico in a timely manner or at all. Some foreign countries where Arcosa operates have regulatory authorities that regulate products sold or used in those countries.In addition, with respect to operations in Mexico and other foreign countries, unexpected changes in the political environment, laws, rules, and regulatory requirements; tariffs and other trade barriers, including regulatory initiatives for buying goods produced in America; more stringent or restrictive laws, rules and regulations relating to labor or the environment; adverse tax consequences; price exchange controls and restrictions; regulations affecting cross-border rail and vehicular traffic; or availability of commodities, including gasoline and electricity, could limit operations affecting production throughput and making the manufacture and distribution of Arcosa’s products less timely or more difficult. Furthermore, any material change in the quotas, regulations or duties on imports imposed by the U.S. government and agencies or on exports by the government of Mexico or its agencies, could affect Arcosa’s ability to export products that Arcosa manufactures in Mexico. Failure to comply with such import and export regulations could result in significant fines and penalties.Because Arcosa has operations outside the U.S., Arcosa could be adversely affected by final judgments of non-compliance with the U.S. Foreign Corrupt Practices Act of 1977 (“FCPA”) or import/export rules and regulations and similar anti-corruption, anti-bribery, or import/export laws of other countries. As a result of our policy to comply with the FCPA and similar anti-bribery laws, we may be at a competitive disadvantage to competitors that are not subject to, or do not comply with, such laws. For example, Arcosa has substantial manufacturing operations in Mexico. To the extent there are significant changes in the exchange rate between the U.S. dollar and the Mexican peso, Arcosa may incur increased costs or losses and reduced profits. Because our financial statements are denominated in U.S. dollars, fluctuations in currency exchange rates between the U.S. dollar and other currencies have had and will continue to have an impact on our reported earnings. Under varying circumstances, Arcosa may seek to minimize these risks using hedges and similar financial instruments and other activities, although these measures, if and when implemented, may not be effective.Arcosa may be adversely affected by trade policies and practices, including trade practices of competitors that violate U.S. or other foreign laws, regulations, or practices.Arcosa faces competition from manufacturers both in the U.S. and around the world, some of which may engage in competition and trade practices involving the importation of competing products into the U.S. in violation of U.S. or other foreign laws, regulations, or practices. For example, Arcosa’s competitors may import competing products that are subsidized by foreign governments and sold in the U.S. at less than fair value. The results of trade negotiations, trade agreements, and tariffs could also negatively affect Arcosa’s supplies, cost of goods sold, and customers. For example, Arcosa produces certain products at its manufacturing facilities in Mexico. Arcosa's business benefits from free trade agreements, such as the United States-Mexico-Canada Agreement ("USMCA"). Potential developments, including failure to enforce the USMCA, potential changes or amendments to the agreement, governmental policies, and laws and regulations could adversely affect Arcosa's existing production operations in Mexico and have a material adverse effect on Arcosa's business. These trade policies and practices could increase pricing pressure on Arcosa’s products, reduce Arcosa’s revenues and operating profits, limit Arcosa’s ability to grow, and otherwise adversely affect Arcosa’s financial results.Arcosa and its customers depend on government spending and funding from federal, state and local government agencies, and any disruption in government funding could harm Arcosa's business.Periods of partial or full U.S. federal government shutdown, impasse, deadlock, and last-minute accords may continue to permeate many aspects of U.S.S. deficit spending and debt ceiling limits, and international commerce. Such periods could negatively impact U.S. domestic and global financial markets, thereby reducing customer demand for Arcosa’s products and services and potentially result in reductions in Arcosa’s revenues, increased price competition, or increased operating costs, any of which could adversely affect Arcosa’s business. As a result, demand for some of Arcosa’s products is influenced by local, state, U.S. federal, and international government fiscal policies, tax incentives and other subsidies, and other general macroeconomic and political factors. Projects in which Arcosa participates may be funded directly by governments or privately-funded, but are otherwise tied to or impacted by government policies and spending measures. If government funding is not approved or funding is lowered as a result of poor economic conditions, lower than expected revenues, competing spending priorities, or other factors, it could limit infrastructure projects available, increase competition for projects, result in excess inventory, and decrease sales, all of which could adversely affect the profitability of Arcosa’s business.Additionally, certain regions or states may require or possess the means to finance only a limited number of large infrastructure projects and periods of high demand may be followed by years of little to no activity. There can be no assurances that governments will sustain or increase current infrastructure spending and tax incentive and other subsidy levels, and any reductions thereto or delays therein could affect Arcosa’s business.Repercussions from terrorist activities or armed conflict could harm Arcosa’s business.Terrorist activities, anti-terrorist efforts, and other armed conflict involving the U.S.S. and global economies, potentially negatively affecting the industries in which Arcosa operates. For example, this could result in delays in or cancellations of the purchase of Arcosa’s products or shortages in raw materials, parts, or components, any of which could prevent Arcosa from meeting its financial and other obligations.Litigated disputes and other claims could increase Arcosa’s costs and weaken Arcosa’s liquidity and financial condition.Arcosa is currently, and may from time to time be, involved in various claims or legal proceedings arising out of Arcosa’s operations. The defense of these lawsuits, claims, investigations, and proceedings may divert management's attention from Arcosa's core business and be expensive to defend. Adverse judgments and outcomes in some or all of these matters could result in significant losses and costs that could weaken Arcosa’s liquidity and financial condition. See Note 15. "Commitments and Contingencies” for additional information on the Company’s current litigation.Arcosa expects to routinely engage in the search for growth opportunities, including assessment of merger and acquisition prospects in new markets and/or products. However, Arcosa may not be able to identify and secure suitable opportunities. Arcosa’s ability to consummate any acquisitions on terms that are favorable to Arcosa may be limited by a number of factors, such as competition for attractive targets and, to the extent necessary, Arcosa’s ability to obtain financing on satisfactory terms, if at all. Integration risks include the following: (i) the diversion of management’s time and resources to integration matters from other Arcosa matters; (ii) difficulties in achieving business opportunities and growth prospects of the acquired business; (iii) difficulties in managing the expanded operations; and (iv) challenges in retaining key personnel. The failure to successfully integrate such mergers or acquisitions could prevent Arcosa from achieving the anticipated operating and cost synergies or long-term strategic benefits from such transactions.Acquisitions and divestitures may bring known and unknown risks to Arcosa. If we fail to adequately perform due diligence during the acquisition process, we may be subject to unexpected liabilities in connection with such transaction. Acquisitions and divestitures also bring risks that the counterparties to the transactions may fail to perform their obligations, which could result in costly litigation, divert management's attention and disrupt our business operations. Third parties could also seek to hold Arcosa responsible for these liabilities, and there can be no assurance that any indemnity from our counterparties or any insurance we obtain in connection with the transaction will be sufficient to protect Arcosa against the full amount of such potential liabilities.Furthermore, an element of Arcosa's long-term strategy is to reduce the complexity and cyclicality of the overall business which may result in divestitures. Divestitures pose risks and challenges that could negatively impact Arcosa's business, including retained liabilities related to divested businesses, obligations to indemnify counterparties against contingent liabilities and potential disputes with counterparties.22Table of ContentsIf we do not realize the expected benefits of these divestitures or our post-completion liabilities and continuing obligations are substantial and exceed our expectations, our financial position, results of operations and cash flows could be negatively impacted. Any divestiture may result in a dilutive impact to our future earnings if we are unable to offset the dilutive impact from the loss of revenue and profits associated with the divestiture, as well as significant write-offs, including those related to goodwill and other intangible assets, which could result in a material adverse effect on Arcosa's business.Potential expansion of our business may expose us to new business, regulatory, political, operational, financial, and economic risks associated with such expansion, both inside and outside of the U.S.Arcosa's growth strategy may result in the acquisition of a new lines of business or expansion into geographic markets (whether inside or outside the U.S.) in which we have limited operating experience, including with respect to seeking regulatory approvals, becoming subject to regulatory authorities, and marketing or selling products. Further, our operations in new foreign markets may be adversely affected by a number of factors, including: general economic conditions and monetary and fiscal policy; financial risks, such as longer payment cycles, difficulty in collecting from international customers, the effect of local and regional financial crises, and exposure to foreign currency exchange rate fluctuations and controls; multiple, conflicting, and changing laws and regulations such as export and import restrictions, employment laws, regulatory and local zoning requirements, and other governmental approvals, permits, and licenses; interest rates and taxation laws and policies; increased government regulation; social stability; and political, economic, or diplomatic developments. Certain jurisdictions have, from time to time, experienced instances of civil unrest and hostilities, both internally and with neighboring countries. Rioting, military activity, terrorist attacks, or armed hostilities could cause our operations in such jurisdictions to be adversely affected or suspended. We generally do not have insurance for losses and interruptions caused by terrorist attacks, military conflicts, and wars.Any of these factors could significantly harm our potential business or international expansion and our operations.Risks Related to Regulatory and Environmental MattersOur business is subject to significant regulatory compliance in the U.S.Arcosa’s Transportation Products segment is subject to regulation by, among others, the U.S. Coast Guard; the U.S. National Transportation Safety Board; the U.S. Customs Service; the Maritime Administration of the USDOT and private industry organizations such as the American Bureau of Shipping and the Association of American Railroads. These organizations establish safety criteria, investigate vessel accidents, and recommend improved safety standards.Arcosa’s Construction Products segment is subject to regulation by MSHA, USEPA, FDA, and various state agencies.Arcosa’s Engineered Structures segment is subject to the regulations by the USDOT and various state agencies, including state departments of transportation.S. For example, the U.S.S. ports. Changes to or a repeal of such legislation could have a material adverse impact on Arcosa’s barge business and revenues.Manufacturing and construction sites are inherently dangerous workplaces. Arcosa’s manufacturing sites often put Arcosa’s employees and others in close proximity with large pieces of mechanized equipment, moving vehicles, chemical and manufacturing processes, heavy products and other items, and highly regulated materials. Unsafe work sites have the potential to increase employee turnover and raise Arcosa’s operating costs. Arcosa’s safety record can also impact Arcosa’s reputation. Arcosa maintains functional groups whose primary purpose is to ensure Arcosa implements effective work procedures throughout Arcosa’s organization and take other steps to ensure the health and safety of Arcosa’s work force, but there can be no assurances these measures will be successful in preventing injuries or violations of health and safety laws and regulations. Such compliance failures could also expose Arcosa to significant financial losses and reputational harm, as well as civil and criminal liabilities, any of which could have a material adverse effect on Arcosa’s business.Arcosa has potential exposure to environmental liabilities that may increase costs and lower profitability.Arcosa is subject to comprehensive federal, state, local, and foreign environmental laws and regulations relating to: (i) the release or discharge of regulated materials into the environment at Arcosa’s facilities or with respect to Arcosa’s products while in operation; (ii) the management, use, processing, handling, storage, transport and transport arrangement, and disposal of hazardous and non-hazardous waste, substances, and materials; and (iii) other activities relating to the protection of human health and the environment. These laws and regulations primarily relate to the generation and disposal of waste, wastewater discharges and air emissions. Such laws and regulations expose Arcosa to liability for its own acts and in certain instances potentially expose Arcosa to liability for the acts of others. These laws and regulations also may impose liability on Arcosa currently under circumstances where at the time of the action taken, Arcosa’s acts or those of others complied with then applicable laws and regulations. In addition, such laws may require significant expenditures to achieve compliance, and are frequently modified or revised to impose new obligations. Non-compliance with these environmental laws and regulations could result in a shutdown or work stoppage and civil and criminal fines or penalties. Arcosa’s operations involving hazardous materials also raise potential risks of liability under common law.Environmental pre-construction, construction, and operating permits are, or may be, required for Arcosa’s operations under these laws and regulations.However, future events, such as changes in, or modified interpretations of, existing environmental laws and regulations or enforcement policies, or further investigation or evaluation of the potential health hazards associated with the manufacture of Arcosa’s products and related business activities and properties, may give rise to additional compliance and other costs that could have a material adverse effect on Arcosa’s business. The transportation of commodities by rail, barge, or container also raises potential liability risks in the event of an accident that results in the release of substances that cause harm to the environment, natural resources, or result in exposure to harmful substances. Generally, liability under existing laws for an accident depends upon causation analysis and the acts, errors, or omissions, if any, of a party involved in the transportation activity, including, but not limited to, the shipper, the buyer, and the seller of the substances being transported, or the manufacturer of products or their components used to transport such substances. Additionally, the severity of injury or property damage arising from an incident may influence the causation responsibility analysis, exposing Arcosa to potentially greater liability. Under certain circumstances, strict liability concepts may apply. If Arcosa is found liable in any such incidents, it could have a material adverse effect on Arcosa’s business.Responding to claims relating to improper handling, transport, storage, or disposal of hazardous materials could be time consuming and costly.We use controlled hazardous materials in our business and generate wastes that are regulated as hazardous wastes under U.S. federal, state, and local environmental laws and under equivalent provisions of law in those and other jurisdictions in which our manufacturing facilities are located. Our use of these substances and materials is subject to stringent, and periodically changing, regulation that can impose costly compliance obligations on us and have the potential to adversely affect our manufacturing activities. We are also subject to potential liability for claims alleging property damage and personal and bodily injury or death arising from the use of or exposure to our 24Table of Contentsproducts, especially in connection with products we manufacture that our customers use to transport or store hazardous, flammable, toxic, or explosive materials.The risk of accidental contamination or injury from these materials cannot be completely eliminated. Additionally, an accident could damage our facilities, resulting in delays and increased costs.Our manufacturing plants or other facilities may have unknown environmental conditions that could be expensive and time-consuming to correct.Business, regulatory, and legal developments regarding climate change, and physical impacts from climate change, could have an adverse effect on our business. Legislation and new rules to regulate emission of greenhouse gases (“GHGs”) have been introduced in numerous state legislatures, the U.S. Congress, and by the USEPA. Some of these proposals would require industries to meet new standards that may require substantial reductions in carbon emissions. There is also a potential for climate change legislation and regulation that could adversely impact the cost of certain manufacturing inputs, including the increasing cost of energy and electricity. While Arcosa cannot assess the direct impact of these or other potential regulations, new climate change protocols could affect demand for its products and/or affect the price of materials, input factors, energy costs, and manufactured components. Potential impacts of climate change include physical impacts, such as disruption in production and product distribution due to impacts from major storm events, shifts in regional weather patterns and intensities, and sea level changes. Other adverse consequences of climate change could include an increased frequency of severe weather events, low river levels, drought, flooding, and rising sea levels that could affect operations at Arcosa’s manufacturing facilities as well as the price and/or availability of insurance coverage for the Company assets or other unforeseen disruptions of Arcosa’s operations, systems, property, or equipment. We also communicate certain initiatives and goals regarding GHG and related matters in our public disclosures. These initiatives and goals may be difficult and expensive to implement or may not advance at a pace sufficient to meet our goals, and we could be criticized for the scope, accuracy, adequacy or completeness of the disclosure. Further, statements about our GHG-related initiatives and goals, and progress towards these goals, may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve and assumptions that are subject to change in the future. If our GHG-related data, processes and reporting are inaccurate or incomplete, or if we fail to achieve progress with respect to these goals or initiatives on a timely basis or at all, our operations and financial performance could be adversely affected. In addition, California enacted two new climate disclosure laws in September 2023 that (1) require U.S.-based businesses with total annual revenues over one billion dollars and doing business in California to annually report their Scope 1, 2, and 3 GHG emissions, and (2) require U.S.-based businesses with total annual revenues over five hundred million dollars and doing business in California to prepare biennial risk reports disclosing the entity's climate-related financial risk and measures adopted to reduce and adapt to climate-related financial risk. A lawsuit challenging the new California climate disclosure laws was filed in a federal district court in California on January 30, 2024. The California Air Resources Board is required to adopt regulations implementing the new California disclosure requirements, but has not, to date, issued any such regulations. These compliance costs could adversely impact our future business. The impacts of climate change and related regulations on our operations and the Company overall are highly uncertain and difficult to estimate, but such effects could be materially adverse to our business.From time to time Arcosa may take tax positions that the Internal Revenue Service (“IRS”), the Servicio de Administracion Tributaria (“SAT”) in Mexico, or other taxing jurisdictions may contest.Our subsidiaries have in the past and may in the future take tax positions that the IRS, the SAT, or other taxing jurisdictions may challenge.Additionally, the recently enacted Inflation Reduction Act of 2022 (the "IRA") provides for certain manufacturing, production, and investment tax credit incentives, including new AMP tax credits for companies that domestically manufacture and sell clean energy equipment, like Arcosa Wind Towers. For the year ended December 31, 2023, the Company has recognized $32.4 million in AMP tax credits for wind towers produced and sold in 2023. The issuance of comprehensive guidance and interpretation as to the eligibility for, calculation of, and methods for claiming many of the IRA’s various tax benefits, tax credits, subsidies, and programs remains ongoing. Arcosa will have to continually upgrade its infrastructure and applications to reduce or mitigate these risks.Cybersecurity incidents, whether with Arcosa or a third party, could disrupt our business and result in the compromise of confidential information. Such incidents can range from individual attempts to gain unauthorized access to our information technology systems to more sophisticated security attacks and events. We have invested and continue to invest in risk management, information security, and data protection measures, including technical, administrative, and organizational safeguards, in order to protect our systems and data. The cost and operational consequences of implementing, maintaining, and enhancing further data or system safeguards could increase significantly to keep pace with increasingly frequent, complex, and sophisticated global cyber threats. Although we believe that we have taken adequate measures to protect against data breaches and system disruptions, we are not able to anticipate or prevent all such risks. Any material breaches of cybersecurity, including the accidental loss, inadvertent disclosure or unapproved dissemination of proprietary information or sensitive or confidential data, or media reports of perceived security vulnerabilities to our systems, products, and services or those of our third parties could cause us to experience reputational harm, loss of customers and revenue, fines, regulatory actions and scrutiny, sanctions, or other statutory penalties, litigation, liability for failure to safeguard our customers' information or financial losses that are either not insured against or not fully covered through any insurance maintained by us. The report, rumor, or assumption regarding a potential breach may have similar results, even if no breach has been attempted or occurred. Any of the foregoing may have a material adverse effect on our business, operating results, and financial condition. Any measures that we take to avoid, detect, mitigate, or recover from material incidents, may be insufficient, circumvented, or may become ineffective.In addition, laws and regulations governing cybersecurity, data privacy and protection, and the unauthorized disclosure of confidential or protected information pose increasingly complex compliance challenges and potentially elevate costs, and any failure to comply with these laws and regulations could result in significant penalties and legal liability.Arcosa’s inability to sufficiently protect Arcosa’s intellectual property rights could adversely affect Arcosa’s business.Arcosa’s patents, copyrights, trademarks, trade secrets, and other intellectual property rights are important to Arcosa’s success. Arcosa relies on patent, copyright, and trademark law, and trade secret protection and confidentiality and/or license agreements with others to protect Arcosa’s intellectual property rights.S. Such instances could negatively impact Arcosa’s competitive position and adversely affect Arcosa’s business. Additionally, Arcosa could be required to incur significant expenses to protect its intellectual property rights.Risks Related to Arcosa Common Stock.Arcosa cannot guarantee the timing, amount, or payment of dividends on its common stock.The timing, declaration, amount, and payment of future dividends to Arcosa’s stockholders falls within the discretion of Arcosa’s Board of Directors (the "Board"). The Board of Directors’ decisions regarding the payment of future dividends will depend on many factors, such as Arcosa’s financial condition, earnings, capital requirements, debt service obligations, covenants related to our debt service obligations, industry practice, legal requirements, regulatory constraints, access to the capital markets, and other factors that the Board of Directors deems relevant. Arcosa cannot guarantee that it will continue to pay any dividend in the future.Certain provisions in Arcosa’s restated certificate of incorporation and amended and restated bylaws ("Arcosa’s Governing Documents"), and of Delaware law, may prevent or delay an acquisition of Arcosa, which could decrease the trading price of the common stock.Arcosa’s Governing Documents and Delaware law contain provisions that are intended to deter coercive takeover practices and inadequate takeover bids by making such practices or bids unacceptably expensive to the bidder and to encourage prospective acquirers to negotiate with Arcosa’s Board of Directors rather than to attempt a hostile takeover.These provisions include limitations on the ability of our stockholders to call special meetings, the establishment of advance notice procedures for stockholder proposals and nominations for election of directors and allow for Arcosa's Board of Directors to issue blank check preferred stock with voting or conversion rights without stockholder approval. In addition, Arcosa is subject to Section 203 of the Delaware General Corporation Law which makes it more difficult for a person who acquires, 15% or more of Arcosa's outstanding voting stock to effect various business combinations with us for a three-year period following the time such stockholder became a 15% stockholder. These provisions are not intended to make Arcosa immune from takeovers. However, these provisions will apply even if the offer may be considered beneficial by some stockholders and could delay or prevent an acquisition that Arcosa’s Board of Directors determines is not in the best interests of Arcosa and its stockholders. These provisions may also prevent or discourage attempts to remove and replace incumbent directors.We cannot predict the prices at which shares of Arcosa common stock may trade.

The trading and market price of Arcosa common stock may fluctuate significantly due to a number of factors, some of which may be beyond Arcosa’s control, including: Arcosa’s quarterly or annual earnings, or those of other companies in its industry; actual or anticipated fluctuations in Arcosa’s operating results; changes in earnings estimates by securities analysts or Arcosa’s ability to meet those estimates; Arcosa’s ability to meet its forward-looking guidance; the operating and stock price performance of other comparable companies; overall market fluctuations and domestic and worldwide economic conditions; and other factors described in these “Risk Factors” and elsewhere in this Annual Report on Form 10-K. Stock markets in general have experienced volatility that has often been unrelated to the operating performance of a particular company. Broad market and industry factors may materially harm the market price of Arcosa’s common stock, regardless of Arcosa’s operating performance. In the past, following periods of volatility in the market price of a company’s securities, shareholder derivative lawsuits and/or securities class action litigation has often been instituted against that company. Such litigation, if instituted against us, could result in substantial costs and a diversion of management’s attention and resources.Stockholders’ percentage of ownership in Arcosa may be diluted in the future.Stockholders’ percentage ownership in Arcosa may be diluted because of equity issuances for acquisitions, capital market transactions, or otherwise, including, without limitation, equity awards that Arcosa grants to its directors, officers, and employees.In addition, Arcosa’s restated certificate of incorporation authorizes Arcosa to issue, without the approval of Arcosa’s stockholders, one or more classes or series of preferred stock having such designation, powers, preferences, and relative, participating, optional, and other special rights, including preferences over Arcosa common stock respecting dividends and distributions, as Arcosa’s Board of Directors generally may determine. The terms of one or more classes or series of preferred stock could dilute the voting power or reduce the residual value of Arcosa common stock. Unresolved Staff Comments.None. Cybersecurity.Risk Management and Strategy.Arcosa continues to make cybersecurity a priority as the threat landscape evolves and becomes increasingly complex and sophisticated.Managing Material Risks & Integrated Overall Risk ManagementArcosa has strategically integrated cybersecurity risk management into its broader risk management framework to promote a company-wide culture of cyber risk awareness. Arcosa's Chief Information Security Officer ("CIO") and Director of Information Security work closely with the IT department to continuously evaluate and address cybersecurity risks in alignment with business objectives, operational needs, and industry-accepted standards, such as the CIS Critical Security Controls and National Institute of Standards and Technology ("NIST") frameworks. The Company has processes and procedures in place to monitor the prevention, detection, mitigation, and remediation of cybersecurity risks. These include but are not limited to:•Maintaining a defined and practiced incident response plan;•Maintaining cyber insurance coverage;•Employing appropriate incident prevention and detection software, such as antivirus, anti-malware, firewall, endpoint detection, and identity and access management;•Maintaining a defined disaster recovery policy and employing backup/disaster recovery software, where appropriate;•Educating, training, and testing employees on information security practices and identification of potential cybersecurity risks and threats;•Ensuring familiarity and compliance with cybersecurity frameworks where appropriate; and•Reviewing and evaluating new developments in the cyber threat landscape.Engaging Third Parties on Risk ManagementRecognizing the complexity and evolving nature of cybersecurity risk, the Company engages with a range of external experts, including cybersecurity consultants, in evaluating, monitoring, and testing Arcosa's cyber management systems and related cyber risks. The Company's collaboration with these third parties includes audits, threat and vulnerability assessments, incident response plan testing, company-wide monitoring of cybersecurity risks, and consultation on security enhancements.Managing Third Party RiskArcosa recognizes the risks associated with the use of vendors, service providers, and other third parties that provide information system services, process information on its behalf, or have access to its information systems, and Arcosa has processes in place to oversee and manage these risks. In addition to the minimum security and control standards, these processes include other quality control measures, such as utilizing a third-party security scoring system to evaluate the security posture of current and potential parties. Arcosa also maintains ongoing monitoring to support continuous compliance with its cybersecurity standards.Risks from Cybersecurity IncidentsArcosa has not been subject to cybersecurity incidents that have materially affected, or are reasonably likely to materially affect the Company, its operations, or financial standing.29Table of ContentsGovernanceRisk Management PersonnelArcosa's cybersecurity risk management program is overseen by management at multiple levels. The CIO and Director of Information Security play key roles in assessing, monitoring, and managing the Company's cybersecurity risks with support of dedicated information technology and security personnel. Both the CIO and Director of Information Security have been in their respective roles at Arcosa for 5 years. The CIO has over 40 years of leadership positions in the high tech and IT industries. He is experienced in detailed product and solution development as well as business process operations providing an understanding of how cybersecurity considerations intersect the business. The Director of Information Security and Compliance at Arcosa has more than 20 years of experience architecting, designing, and deploying security solutions based on industrial frameworks. Monitor Cybersecurity IncidentsThe CIO and Director of Information Security are continually informed and updated about the latest developments in cybersecurity, including emerging threats and innovative risk management techniques. They implement and oversee processes for the regular monitoring of our information systems. This includes the deployment of advanced security measures and regular system audits to identify potential vulnerabilities. In the event of a cybersecurity incident, the Company is equipped with a defined and practiced incident response plan. This plan includes immediate actions to mitigate the impact and long-term strategies for remediation and prevention of future incidents.Board of Director OversightThe Audit Committee of the Company's Board of Directors is responsible for overseeing the Company's cyber risk. The CIO and other experts, as necessary provide the Audit Committee quarterly updates that encompass a broad range of topics, including but not limited to:•Current cybersecurity threat landscape and emerging threats;•Status of ongoing cybersecurity initiatives and strategies;•Incident reports and learnings from unique cybersecurity events, including those of other companies;•Compliance status and efforts with regulatory requirements and industry standards; and•Benchmarked data on the performance of certain aspects of our cybersecurity program relative to our peers.In addition, the CIO provides updates to the full Board upon request or to update the Board of unique developments, such as regulatory updates or unique vulnerability developments. Our Board is composed of members with diverse expertise including risk management, technology, and finance, equipping them to oversee cybersecurity risks effectively..

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