Arcosa, Inc.

Owned · Leased · U.S. · Non-U.S.

Construction Products · 859,300 · 349,700 · 1,197,400 · 11,600

Engineered Structures · 2,578,400 · 375,400 · 2,298,800 · 655,000

Transportation Products · 699,000 · 96,000 · 795,000 · —

Corporate · — · 39,800 · 39,800 · —

4,136,700 · 860,900 · 4,331,000 · 666,600

(1) Excludes non-operating facilities.

Our estimated weighted average production capacity utilization for the twelve-month period ended December 31, 2025 is reflected by the following percentages:

Production Capacity Utilized(1)

Construction Products(2) · 65

Engineered Structures · 65

(1) Excludes non-operating facilities.

(2) Includes processing facilities, quarries, and mines.

Mineral Reserves - Overview

Information concerning the Company’s mining properties has been prepared in accordance with the requirements of Subpart 1300 of Regulation S-K (“S-K 1300”). The terms “mineral resource,” “measured mineral resource,” “indicated mineral resource,” “inferred mineral resource,” “mineral reserve,” “proven mineral reserve,” and “probable mineral reserve,” whether singular or plural, are defined and used in accordance with S-K 1300. Under S-K 1300, mineral resources may not be classified as “mineral reserves” unless the determination has been made by a qualified person that the mineral resources can be the basis of an economically viable project.

The Company’s estimates of mineral reserves and mineral resources are determined internally by competent professionals, including engineers and geologists, using industry best practices and internal controls. These estimates are based on geologic data, mineral ownership information, and current or proposed operating plans. Our mineral reserves are proven and probable reserves that could be economically and legally extracted or produced at the time of the reserve determination, considering grade and quality of the minerals and all material modifying factors. These estimates are periodically updated to reflect past mining production, updated mine plans, new exploration information, and other geologic or mining data. Acquisitions or dispositions of mining properties will also change these estimates. Changes in mining or processing methods may increase or decrease the recovery basis for the estimates. The ability to update or modify the estimates of our mineral reserves is restricted to competent geologists and mining engineers and material modifications are documented. Our estimates of mineral reserves and mineral resources, and supporting information, have been assessed by the John T. Boyd Company, a qualified person, which is unaffiliated with the Company and conforms to the requirements under S-K 1300 for qualified persons. For more information related to the risks associated with the estimates of mineral reserves and mineral resources, see Item 1A. “Risk Factors - Risks Related to our Business and Operations.”

Mining Properties

During the year ended December 31, 2025, we produced 33.3 million tons of natural aggregates and specialty materials from our mining and processing operations located in the U.S. and Canada, all of which, we believe, have adequate road and/or railroad access. As of December 31, 2025, the Company did not have any individually material mining properties. The Company reports its mining operations primarily through the following commodity groupings:

Natural Aggregates – includes operations which specialize in the production of sand, gravel, crushed stone, and stabilized material. Our aggregates operations are grouped into the “Texas” and “All Other” geographic regions, and shipments from an individual quarry or stationary crushing location are generally limited in geographic scope because the cost of transportation to customers is high relative to the value of the product itself.

Specialty Materials – includes operations which produce lightweight aggregates, select natural aggregates, and milled or processed specialty building products and agricultural products. Since specialty materials have a much wider, multi-state distribution area due to their higher value relative to their distribution costs as compared to natural aggregates, we do not group our specialty materials operations by geographic region.

Our active operations as of December 31, 2025 included 52 that produce and distribute natural aggregates and 11 that produce, process, and distribute specialty materials. In addition to our active operations, we control interests in 23 inactive or greenfield (undeveloped) mining properties. We also own and operate recycled aggregates (i.e., recycled concrete products) facilities which are not dependent on mineral reserves.

The following map illustrates the locations of our active mining operations as of December 31, 2025, excluding stand-alone processing facilities:

The following table summarizes, by major commodity group and geographic region, the status for our mining properties as of December 31, 2025:

Number of Properties

Producing · Inactive · Total

Texas · 23 · 11 · 34

All other · 29 · 8 · 37

52 · 19 · 71

Specialty materials · 11 · 4 · 15

63 · 23 · 86

Our active mining operations include 62 surface mines and one underground mine. The operations extract materials from surficial or near-surface alluvial and bedrock deposits. Mining methods utilized at our surface operations include conventional truck/shovel excavation and dredge mining. Our single underground mine in Pennsylvania utilizes mechanized room-and-pillar mining methods.

• Arcosa International Holdings AG Switzerland⁴
• Arcosa LW BR, LLC Delaware⁴
• Arcosa LW HPB, LLC Delaware⁴
• Arcosa LW KY, LLC Delaware⁴
• Arcosa LW, LLC Delaware⁴
• Arcosa LWB, LLC Delaware⁴
• Arcosa LWFP, LLC Delaware⁴
• Arcosa LWS, LLC Delaware⁴
• Arcosa Marine Components, LLC Delaware⁴
• Arcosa Marine Leasing, Inc. Delaware⁴
• Arcosa Marine Products, Inc. Delaware⁴
• Arcosa Materials Holdings, Inc. Delaware⁴
• Arcosa Materials, Inc. Delaware⁴
• Arcosa Mining and Construction Equipment, Inc. Delaware⁴
• Arcosa Shoring Products, Inc. Delaware⁴
• Arcosa Stabilized & Recycling, LLC Delaware⁴
• Arcosa Stabilized Materials, LLC Texas⁴
• Arcosa Telecom Structures, LLC Delaware⁴
• Arcosa Traffic and Lighting Structures, LLC Delaware⁴
• Arcosa Wind Towers, Inc. Delaware⁴
• Art Wilson Co. Delaware⁴
• Beaver Run Farms LLC Delaware⁴
• CEMC Services, LLC Delaware⁴
• CWS Road Plate, L.L.C. Texas⁴
• Cherry Administration Services, Inc. Texas⁴
• Cherry Companies Management, Inc. Texas⁴
• Cherry Concrete Removal, Ltd. Texas⁴
• Cherry Crawford Holdings, LLC Delaware⁴
• Cherry Demolition, Inc. Texas⁴
• Cherry Land Holdings, L.L.C. Texas⁴
• Cherry Moving Company, Inc. Texas⁴
• Cherry Recycling, Inc. Texas⁴
• CreekWood Resources, LLC Delaware⁴
• Diamond Gypsum, LLC Delaware⁴
• East SM, LLC Delaware⁴
• HG Eagle, LLC Delaware⁴
• Harrison Gypsum, LLC Delaware⁴
• Imperial Limestone Company Limited British Columbia⁴
• Inland Marine Equipment LLC Delaware⁴
• J.A. Jack & Sons, Inc. Delaware⁴
• Jack Acquisitions, Inc. Delaware⁴
• Lake Lynn Transportation LLC Delaware⁴
• Lake Point Phase I LLC Florida⁴
• Lake Point Phase II LLC Florida⁴
• Lake Point Southfront LLC Florida⁴
• Laurel Aggregates Terminal Services of Delaware, LLC Delaware⁴
• Laurel Aggregates of Delaware, LLC Delaware⁴
• Laurel Aggregates of PA, LLC Delaware⁴
• Meyer Utility Structures, LLC Delaware⁴
• Midwest Land Trust, LLC Delaware⁴
• North Florida Rock, LLC Delaware⁴
• OFE, S. de R.L. de C.V. Mexico⁴
• Opelika Stone Company, LLC Delaware⁴
• POB Exploration, LLC Delaware⁴
• RB Parkway, LLC Delaware⁴
• RB Paving and Construction, LLC Delaware⁴
• River Aggregates, LLC Delaware⁴
• Selinsky Road Holdings, LLC Delaware⁴
• Servicios Corporativos Tatsa, S. de R.L. de C.V. Mexico⁴
• Southwest Equipment Holdings, LLC Arizona⁴
• Southwest Rock Products, L.L.C. Delaware⁴
• Stavola Asphalt Company LLC Delaware⁴
• Stavola Beaver Run Quarry, LLC Delaware⁴
• Stavola Construction Materials LLC Delaware⁴
• Stavola Contracting Company LLC Delaware⁴
• Stavola Flemington Asphalt LLC Delaware⁴
• Stavola Flemington Land LLC Delaware⁴
• Stavola Industries, L.L.C. Delaware⁴
• Stavola Newark Terminal LLC Delaware⁴
• Stavola Oldbridge Materials, L.L.C. Delaware⁴
• Stavola Quarries, L.L.C. Delaware⁴
• Stavola Sand & Gravel LLC Delaware⁴
• Stavola Silverbrook Land LLC Delaware⁴
• Stavola Summit Land PA LLC Pennsylvania⁴
• StonePoint Holding, LLC Delaware⁴
• StonePoint Intermediate Holding, LLC Delaware⁴
• StonePoint Materials LLC Delaware⁴
• StonePoint Ultimate Holding, LLC Delaware⁴
• Summit Anthracite LLC Delaware⁴
• The Gravel Company, LLC Texas⁴
• Utica Resources LLC Delaware⁴
• Washita Valley Logistics, LLC Delaware⁴
• Western Oklahoma Development Group, LLC Delaware⁴
• Western States Gypsum, Inc. Delaware⁴
• White Mountain Investment II, LLC Arizona⁴
• White Mountain Properties, LLC Delaware⁴
• White Mountain Rock Products, LLC Arizona⁴
• Winn Marine, LLC Delaware⁴
• Winn Materials of Kentucky LLC Delaware⁴
• Winn Materials, LLC Delaware⁴

• Failure to maintain safe work sites could result in losses, which could adversely affect our business and reputation.
• Some of Arcosa’s employees belong to labor unions and strikes or work stoppages could adversely affect Arcosa’s operations.
• Equipment failures or other material disruption at one or more of Arcosa’s manufacturing or mining facilities or in Arcosa’s supply chain could have a material adverse effect on us. In some instances, Arcosa relies on a limited number of suppliers for certain raw materials, parts, and components needed in its production.
• Extensive damage to Arcosa’s facilities, including as a result of natural disasters or similar incidents, could lead to production, delivery or service curtailments or shutdowns, loss of revenue, or higher expenses.
• Fluctuations in the price and supply of raw materials and parts and components used in the production of Arcosa’s products could have a material adverse effect on its ability to cost-effectively manufacture and sell its products.
• 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.
• Reductions in the availability of energy supplies or an increase in energy costs may increase Arcosa’s operating costs.
• The limited number of customers for certain of Arcosa’s products, the variable purchase patterns of Arcosa’s customers in all of its segments, and the timing of completion, delivery, and customer acceptance of orders may cause Arcosa’s revenues and income from operations to vary substantially each quarter, potentially resulting in significant fluctuations in its quarterly results.
• Any material nonpayment or nonperformance by any of our customers could have a material adverse effect on our business and results of operations.
• 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.
• 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.
• Insurance coverage could 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.
• Arcosa's indebtedness could adversely affect its financial condition and prevent it from fulfilling its obligations
• 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.
• Changes in accounting policies or inaccurate estimates or assumptions in the application of accounting policies could adversely affect the reported value of Arcosa's assets or liabilities and financial results.
• Pandemics, epidemics, or other public health emergencies, as well as the governmental shutdowns related thereto or otherwise, may adversely affect Arcosa’s business.
• 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.
• Arcosa and its customers participate in cyclical industries, which are subject to downturns.
• The impact of increased prices and inflation on principal raw material prices, including the cost of steel with respect to the order of new barges or wind towers and liquid asphalt with respect to our asphalt paving operations, could negatively impact Arcosa's performance and financial results.
• Risks related to Arcosa’s operations outside of the U.S., particularly Mexico, could decrease Arcosa’s profitability.
• Arcosa may incur increased costs due to fluctuations in foreign currency exchange rates.
• 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 and its customers depend on government spending, funding and routine operations from federal, state and local government agencies, and any disruption in government funding or other functions could harm Arcosa's business.
• Repercussions from terrorist activities or armed conflict could harm Arcosa’s business.
• Litigated disputes and other claims could increase Arcosa’s costs and weaken Arcosa’s liquidity and financial condition.
• Organic growth is uncertain and operational transitions could increase costs and lower efficiency.
• Arcosa may not be able to successfully identify, consummate or integrate acquisitions.
• Acquisitions and divestitures bring risks of unexpected liabilities that could harm 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 is subject to health and safety laws and regulations and any failure to comply with any current or future laws or regulations could have a material adverse effect on us.
• Arcosa has potential exposure to environmental liabilities that may increase costs and lower profitability.
• Responding to claims relating to improper handling, transport, storage, or disposal of hazardous materials could be time consuming and costly.
• 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.
• Arcosa’s sustainability efforts may be costly or may not align with the public sentiments of our stockholders and others with respect to our sustainability practices and related public disclosures.
• 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.
• The expiration, elimination, modification, or reduction of tax benefits or tax credits or the ability to utilize federal-aid programs that allow for purchase price reimbursement or other government funding or subsidies may harm Arcosa's business.
• Information system failures, cyber incidents or security breaches, whether with Arcosa or a third party, could disrupt our business and result in the compromise of confidential, sensitive, or proprietary information.
• Arcosa is subject to complex and evolving laws and regulations regarding privacy and cybersecurity.
• Arcosa’s adoption and use of AI technologies present operational, legal, and compliance risks that could increase our costs and expose us to liability.
• Arcosa’s inability to sufficiently protect Arcosa’s intellectual property rights could adversely affect Arcosa’s business.
• Arcosa cannot guarantee the timing, amount, or payment of dividends on its common stock.
• 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 stock price may fluctuate significantly.
• Stockholders’ percentage of ownership in Arcosa may be diluted in the future.