mlm-10k_20211231.htm

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Martin Marietta Materials, Inc. (the Company or Martin Marietta) is a natural resource-based building materials company. The Company supplies aggregates (crushed stone, sand and gravel) through its network of approximately 350 quarries, mines and distribution yards in 28 states, Canada and The Bahamas. In 2021, the aggregates product gross profit accounted for 67% of the Company’s consolidated total product and services gross profit. Martin Marietta also provides cement and downstream products, namely, ready mixed concrete, asphalt and paving services, in markets that are naturally vertically integrated and where the Company has a leading aggregates position. The Company’s heavy-side building materials are used in infrastructure, nonresidential and residential construction projects. Aggregates are also used in agricultural, utility and environmental applications and as railroad ballast. The aggregates, cement, ready mixed concrete and asphalt and paving operations are reported collectively as the “Building Materials business”. The Company also operates a Magnesia Specialties business with production facilities in Michigan and Ohio. The Magnesia Specialties business produces magnesia-based chemical products that are used in industrial, agricultural and environmental applications. It also produces dolomitic lime sold primarily to customers for steel production and land stabilization. Magnesia Specialties’ products are shipped to customers domestically and worldwide.

On October 1, 2021, the Company acquired the Lehigh Hanson West Region business (Lehigh West Region) for $2.28 billion in cash. The acquisition included a portfolio of 17 active aggregates quarries, two cement plants with related distribution terminals, and targeted downstream operations in California, Arizona, Nevada and Oregon. These operations provided a new upstream, materials-led growth platform across several of the nation’s largest megaregions in California and Arizona, solidifying the Company’s position as a leading coast-to-coast aggregates producer. The acquired cement plants, distribution terminals and California ready mixed concrete operations are classified as assets held for sale and discontinued operations as of December 31, 2021. The Lehigh West Region business is reported in the Company’s West Group.

On July 30, 2021, the Company acquired assets of Southern Crushed Concrete (SCC). SCC is a leading producer of recycled concrete in the Houston area, one of the country’s largest aggregates markets. Recycled concrete is principally used as a base aggregates product in infrastructure, commercial and residential construction applications. SCC is reported in the Company’s West Group.

On April 30, 2021, the Company completed its acquisition of Tiller Corporation (Tiller), a leading aggregates and hot mix asphalt supplier in the Minneapolis/St. Paul area, a large and fast-growing midwestern metropolitan area. The Tiller acquisition complements the Company’s existing product offerings in the surrounding areas. Additionally, Tiller sells asphalt solely as a materials provider and does not offer paving or other associated services. Tiller is reported in the Company’s East Group.

FOR FURTHER INFORMATION WITH RESPECT TO THE DEVELOPMENT OF THE COMPANY’S BUSINESS PRIOR TO 2021, SEE THE INFORMATION APPEARING UNDER THE HEADING “GENERAL” INCLUDED IN PART I, ITEM 1 OF THE COMPANY’S FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2019, WHICH INFORMATION IS INCORPORATED BY REFERENCE.

The Company conducts its Building Materials business through two reportable segments, organized by geography: East Group and West Group. The East Group provides aggregates and asphalt products only. The West Group provides aggregates, cement and downstream products. The ten largest revenue-generating states accounted for 84% of the Building Materials business total revenues in 2021: Texas, Colorado, North Carolina, Georgia, Minnesota, Iowa, Florida, South Carolina, Indiana and Maryland. The Company’s Magnesia Specialties business is reported as a separate segment, which includes its magnesia-based chemicals and dolomitic lime businesses. For more information on the organization and geographic area of the Company’s business segments, see “Note A: Accounting Policies” and “Note P: Segments” of the “Notes to Financial Statements” of the Company’s consolidated financial statements, which appear in Item 8, “Financial Statements and Supplementary Data,” of this Annual Report on Form 10-K (this Form 10-K), which information is incorporated by reference.

The profitability of the Building Materials business, which serves customers in the construction marketplace, is sensitive to national, regional and local economic conditions and cyclical swings in construction spending, which are in turn affected by fluctuations in levels of public-sector infrastructure funding; interest rates; access to capital markets; and demographic,

geographic, employment and population dynamics. The heavy-side construction business is conducted outdoors, as are much of the Building Materials business’s operations. Therefore, erratic weather patterns, seasonal changes, and other weather-related conditions, including precipitation, flooding, hurricanes, snowstorms, extreme temperatures, wildfires, earthquakes and droughts, can significantly affect production schedules, shipments, costs, efficiencies and profitability. Generally, the financial results for the first and fourth quarters are subject to the impacts of winter weather, while the second and third quarters are subject to the impacts of heavy precipitation.

The Building Materials business markets its products primarily to the construction industry, with 34% of its 2021 organic aggregates shipments sold to contractors in connection with highway and other public infrastructure projects and the balance of its organic shipments sold primarily to contractors for nonresidential and residential construction projects. The Company also believes exposure to fluctuations in nonresidential and residential, or private-sector, construction spending is lessened by the business’ mix of public sector-related shipments.

The Building Materials business covers a wide geographic area. The five largest revenue-generating states, determined by state of destination, (Texas, Colorado, North Carolina, Georgia and Minnesota) accounted for 68% of the Building Materials business’ total revenues by state of destination in 2021. The Building Materials business is accordingly affected by the economies in these regions and has been adversely affected in part by recessions and weaknesses in these economies from time to time. In 2020, the coronavirus (COVID-19) pandemic impacted the global economy. The Company, being considered an essential business, continued to operate but experienced a modest decline in aggregates shipments in 2020 due to a slowdown in overall construction activity and only modest growth in organic aggregates shipments in 2021.

Aggregates, consisting of crushed stone, sand and gravel, are an engineered, granular material that is manufactured to specific sizes, grades and chemistry for use primarily in construction applications. The Company’s operations consist primarily of open pit quarries; however, the Company is the largest operator of underground aggregates mines in the United States, with 14 active underground mines located in the East Group.

Natural aggregates sources can be found in relatively homogeneous deposits in certain areas of the United States. As a general rule, the distance covered by truck shipments from an individual quarry is limited because the cost of transporting processed aggregates to customers is high in relation to the price of the product itself. As described below, the Company’s distribution system mainly uses trucks, but also has access to a waterborne network where the per-mile unit cost of transporting aggregates is much lower. In addition, acquisitions have enabled the Company to extend its customer base through increased access to rail transportation. Proximity of quarry facilities to customers’ construction sites or to long-haul transportation corridors is an important factor in competition for aggregates businesses.

The Company’s distribution network moves aggregates materials from certain domestic and offshore sources via its long-haul rail and waterborne distribution network, to markets where aggregates supply is limited. The Company’s rail network primarily serves its Texas, Florida, Colorado and Gulf Coast markets while the Company’s locations in The Bahamas and Nova Scotia transport materials via oceangoing ships. The Company’s strategic focus includes expanding inland and offshore capacity and acquiring distribution facilities and port locations to offload transported material. At December 31, 2021, the Company’s aggregates distribution facilities consisted of 84 terminals. The long-haul distribution network can diversify market risk for locations that engage in long-haul transportation of their aggregates products. The risk of a downturn in one market may be somewhat mitigated by other markets served by the location, particularly where a producing quarry serves a local market and transports products via rail, water and/or truck to be sold in other markets. However, the Company’s expansion of its rail-based distribution network, coupled with the extensive use of rail service, increases the Company’s dependence on and exposure to railroad performance, including track congestion, crew availability, railcar availability, locomotive availability, and the ability to renegotiate favorable railroad shipping contracts. The waterborne distribution network also increases the Company’s exposure to certain risks, including, among other items, meeting minimum tonnage requirements of shipping contracts, demurrage costs, fuel costs, ship availability and weather disruptions. The Company has long-term agreements with shipping companies to provide ships to transport the Company’s aggregates to various coastal ports.

The Company generally acquires contiguous property around existing quarry locations. This property can serve as buffer property or additional mineral reserve capacity, assuming the underlying geology supports economical aggregates mining. In

either instance, the acquisition of additional property around an existing quarry allows the expansion of the quarry footprint and extension of quarry life. Some locations having limited reserves may be unable to expand.

A long-term capital focus for the Company, primarily in the midwestern United States due to the nature of its indigenous aggregates supply, is underground limestone aggregates mines. Production costs are generally higher at underground mines than surface quarries since the depth of the aggregates deposits and the access to the reserves result in higher costs related to development, explosives and depreciation costs. However, these locations often possess marketplace transportation advantages that can lead to higher average selling prices than more distant surface quarries.

The construction aggregates industry has been consolidating, and the Company has actively participated in the industry’s consolidation. When acquired, new locations sometimes do not satisfy the Company’s internal safety, maintenance, pit development, or other standards, and may require additional resources before benefits of the acquisitions are fully realized. Acquisition opportunities include public and large private, family-owned businesses, as well as asset swaps and divestitures from companies executing their strategic plans, rationalizing non-core assets, and repairing financially-constrained balance sheets. The Company’s Board of Directors and management continue to review and monitor the Company’s long-term strategic plans, commonly referred to as SOAR (Strategic Operating Analysis and Review), which include assessing business combinations and arrangements with other companies engaged in similar businesses, increasing the Company’s presence in its core businesses, investing in internal expansion projects in high-growth markets, and pursuing new opportunities related to the Company’s existing markets.

Environmental and zoning regulations have made it increasingly difficult for the aggregates industry to expand existing quarries and to develop new quarry operations. Although it cannot be predicted what policies will be adopted in the future by federal, state, and local governmental bodies regarding these matters, the Company anticipates that future restrictions will likely make zoning and permitting more difficult, thereby potentially enhancing the value of the Company’s existing mineral reserves.

Management believes its aggregates reserves are sufficient to permit production at present operational levels for the foreseeable future. The Company does not anticipate any significant difficulty in obtaining reserves used for production. The Company’s aggregates reserves average approximately 78 years, based on current production levels. However, certain locations may be subject to more limited reserves and may not be able to expand. Moreover, as noted above, environmental and zoning regulations will likely make it harder for the Company to expand its existing quarries or develop new quarry operations.

The Company generally sells its aggregates, ready mixed concrete and asphalt products upon receipt of customer orders or requests. The Company generally maintains inventories of aggregates products in sufficient quantities to meet the requirements of customers.

Cement is the basic agent used to bind aggregates, sand and water in the production of ready mixed concrete. The Company has a strategic and leading cement position in Texas, with production facilities in Midlothian, Texas, south of Dallas/Fort Worth, and Hunter, Texas, north of San Antonio. These plants, which produce Portland and specialty cements, have a combined annual clinker capacity of 4.5 million tons, and operated at 76% utilization in 2021. The Midlothian plant permit allows the Company to expand production by up to 0.8 million additional tons. In 2021, as part of the Lehigh West Region acquisition, the Company acquired two cement production facilities, including one in Redding, California and one in Tehachapi, California, and several cement distribution terminals. These operations are classified as assets held for sale as of December 31, 2021. Calcium carbonate in the form of limestone is the principal raw material used in the production of cement. The Company owns more than 600 million tons of limestone reserves adjacent to its Texas cement production plants and more than 50 million tons of limestone reserves adjacent to its California cement production plants.

The cement operations of the Building Materials business produce Portland and specialty cements. Similar to aggregates, cement is used in infrastructure projects, nonresidential and residential construction, and the railroad, agricultural, utility and environmental industries. Consequently, the cement industry is cyclical and dependent on the strength of the construction sector.

Cement consumption is dependent on the time of year and prevalent weather conditions. According to the Portland Cement Association, nearly two-thirds of U.S. cement consumption occurs in the six months between May and October. Approximately 70% to 75% of all cement shipments are sent to ready mixed concrete operators. The rest are shipped to manufacturers of concrete-related products, contractors, materials dealers and oil well/mining/drilling companies, as well as government entities.

Energy accounted for approximately 23% of the cement production cost profile in 2021. Therefore, profitability of cement is affected by changes in energy prices and the available supply of these products. The Company currently has fixed-price supply contracts for coal and natural gas, but also consumes alternative fuel and petroleum coke. Further, profitability of the cement operations is also impacted by kiln maintenance, which typically requires a plant to be shut down for a period of time.

The limestone reserves used as a raw material for cement are located on Company-owned property, adjacent to each of the cement plants. Management believes that its reserves of limestone are sufficient to permit production at the current operational levels for the foreseeable future.

The cement operations generally deliver their products upon receipt of customer orders or requests. Inventory for products is generally maintained in sufficient quantities to meet rapid delivery requirements of customers.

Ready mixed concrete, a mixture primarily consisting of cement, aggregates, sand and water, is measured in cubic yards and specifically batched or produced for customers’ construction projects and then transported and poured at the project site. The aggregates used for ready mixed concrete is a washed material with limited amounts of fines (such as dirt and clay). The Company operates 150 ready mix plants in Texas, Colorado, California, Arizona and Wyoming. The California ready mixed concrete operations are classified as assets held for sale as of December 31, 2021. Asphalt is most commonly used in surfacing roads and parking lots and consists of liquid asphalt, or bitumen, the binding medium, and aggregates. Similar to ready mixed concrete, each asphalt batch is produced to customer specifications. The Company operates 35 asphalt plants in Arizona, California, Colorado and Minnesota. The Company also provides paving services in Colorado and California. Market dynamics for these downstream product lines include a highly competitive environment and lower barriers to entry compared with aggregates and cement.

The cement and downstream operations results are affected by volatile factors, including energy-related costs, operating efficiencies and weather, to a greater extent than the Company’s aggregates operations. Liquid asphalt and cement serve as key raw materials in the production of hot mix asphalt and ready mixed concrete, respectively. Therefore, fluctuations in prices for these raw materials directly affect the Company’s operating results.

The Magnesia Specialties business produces and sells dolomitic lime from its Woodville, Ohio facility and manufactures magnesia-based chemical products for industrial, agricultural and environmental applications at its Manistee, Michigan facility. These magnesia-based chemical products have varying uses, including flame retardants, wastewater treatment, pulp and paper production and other environmental applications. In 2021, 69% of Magnesia Specialties’ total revenues were attributable to chemical products, 30% to lime, and 1% to stone sold as construction materials.

In 2021, 76% of the lime produced in the Magnesia Specialties business was sold to third-party customers, while the remaining 24% was used internally as a raw material in making the business’ chemical products. Dolomitic lime products sold to external customers are used primarily by the steel industry. In 2021, 34% of the Magnesia Specialties’ total revenues were attributable to products used in the steel industry, primarily dolomitic lime. Accordingly, a portion of the revenues and profitability of the Magnesia Specialties business is affected by production and inventory trends in the steel industry. These trends are guided by the rate of consumer consumption, the flow of offshore imports, and other economic factors. The dolomitic lime business runs most profitably at 70% or greater steel capacity utilization. According to the Federal Reserve, domestic capacity utilization averaged 81% in 2021 versus 65% in 2020, which was negatively impacted by COVID-19.

In the Magnesia Specialties business, a significant portion of costs is of a fixed or semi-fixed nature. The production process requires the use of natural gas, coal and petroleum coke. Therefore, fluctuations in their pricing directly affect operating results. To help mitigate this risk, the Magnesia Specialties business has fixed-price agreements for approximately 64% of its 2022 coal, natural gas and petroleum coke needs. For 2021, the Company’s average cost per MCF (thousand cubic feet) of natural gas increased 21% versus 2020.

Given high fixed costs, low capacity utilization can negatively affect the segment’s results from operations. Management expects future organic profit growth to result from increased pricing, efficiency enhancements, rationalization of the current product portfolio and/or further cost reductions. Management has shifted the strategic focus of the magnesia-based business to specialty chemicals that can be produced at volume levels that support efficient operations. Accordingly, these products are not as dependent on the steel industry as the dolomitic lime product line. Demand for chemicals products recovered in 2021 after being negatively impacted by COVID-19 in 2020.

The principal raw materials used in the Magnesia Specialties business are dolomitic limestone and magnesium-rich brine. Management believes that its reserves of dolomitic limestone and brine are sufficient to permit production at the current operational levels for the foreseeable future.

Magnesia Specialties generally delivers its products upon receipt of customer orders or requests. Inventory for products is generally maintained in sufficient quantities to meet rapid delivery requirements of customers. A significant portion of the 275,000-ton dolomitic lime capacity from a lime kiln at Woodville, Ohio is committed under a long-term supply contract.

The Magnesia Specialties business is highly dependent on rail transportation, particularly for movement of dolomitic lime from Woodville to Manistee and direct customer shipments of dolomitic lime and magnesia chemicals products from both Woodville and Manistee. The segment can be affected by the specific transportation and other risks and uncertainties outlined under Item 1A, “Risk Factors,” of this Form 10-K.

As of January 31, 2022, the Company owns, has the right to use, or has pending applications for patents pending or granted by the United States and various countries and trademarks related to its business. The Company believes that its rights under its existing patents, patent applications and trademarks are of value to its operations, but no one patent or trademark or group of patents or trademarks is material to the conduct of the Company’s business as a whole.

No material part of the business as a whole, or of any segment of the Company, is dependent upon a single customer or upon a few customers. The loss of any single customer would not have a material adverse effect on the segment. The Company’s products are sold principally to commercial customers in private industry. Although large amounts of construction materials are used in public works projects, relatively insignificant sales are made directly to federal, state, county, or municipal governments, or agencies thereof.

The nature of the Company’s competition varies among its products due to the widely differing amounts of capital necessary to build and maintain production facilities. Crushed stone production from quarries or mines, and sand and gravel production by dredging, is moderately capital intensive. Construction of cement production facilities is highly capital intensive and requires long lead times to complete engineering design, obtain regulatory permits, acquire equipment and construct a plant. Most domestic cement producers are owned by large foreign companies operating in multiple international markets. Many of these producers maintain the capability to import cement from foreign production facilities. Ready mixed concrete production requires relatively small amounts of capital to build a concrete batching plant and acquire delivery trucks. Accordingly, economics can lead to lower barriers to entry in some concrete markets. As a result, depending on the local market, the Company may face competition from small producers as well as large, vertically-integrated companies with facilities in many markets.

The Company operates in a largely-fragmented industry with over 5,000 domestic aggregates producers, including large, public companies and a large number of small, privately-held companies. Other publicly traded companies among the ten largest U.S. aggregates producers include the following:

Due to the localized nature of the industry resulting from the high cost of transportation relative to the price of the product, the Building Materials business primarily operates in smaller distinct areas that can vary from one another.

Capacity for cement plants is often stated in terms of “clinker” capacity; clinker is the initial product of cement production. According to the U.S. Geological Survey, United States cement production is widely dispersed, with the top five companies collectively producing approximately 58% of U.S. clinker capacity. An estimated 83% of U.S. clinker capacity is owned by

companies headquartered outside of the United States. The Company’s cement operations also compete with imported cement because of the higher value of the product and the existence of major ports or terminals in Texas and California.

The Company’s ready mixed concrete and asphalt and paving operations are also in markets with numerous operators, large and small.

The Company believes that its ability to transport materials by rail and waterborne vessels has enhanced its ability to compete in the building materials industry.

The Magnesia Specialties business competes with various companies in different geographic and product areas principally on the basis of quality, price, technological advances, and technical support for its products. While the revenues of the Magnesia Specialties business in 2021 were predominantly domestic, a portion was derived from customers located outside the United States.

The Company’s operations are subject to and affected by federal, state, and local laws and regulations relating to zoning, land use, mining, air emissions (including CO₂ and other greenhouse gases), water use, allocation and discharges, waste management, noise and dust exposure control, reclamation and other environmental, health and safety, and regulatory matters. Certain of the Company’s operations may from time to time involve the use of substances that are classified as toxic or hazardous within the meaning of these laws and regulations. Environmental operating permits are, or may be, required for certain of the Company’s operations, and such permits are subject to modification, renewal and revocation.

The Company regularly monitors and reviews its operations, procedures, and policies for compliance with existing laws and regulations, changes in interpretations of existing laws and enforcement policies, new laws that are adopted, and new laws that the Company anticipates will be adopted that could affect its operations. The Company has a full-time team of environmental engineers and managers that perform these responsibilities. The direct costs of ongoing environmental compliance were approximately $31.0 million in 2021 and $32.8 million in 2020 and are related to the Company’s environmental staff, ongoing monitoring costs for various matters (including those matters disclosed in this Form 10-K), and asset retirement costs. Capitalized costs related to environmental control facilities were approximately $12.0 million in 2021 and are expected to be approximately $18.0 million in each of 2022 and 2023. The Company’s capital expenditures for environmental matters were not material to its results of operations or financial condition in 2021 and 2020. However, the Company’s expenditures for environmental matters generally have increased over time and are likely to increase in the future. Despite the Company’s compliance efforts, risk of environmental liability is inherent in the Company’s businesses, and environmental liabilities could have a material adverse effect on the Company in the future. Complying with governmental and environmental regulations did not have and is not expected to have a material effect on the Company’s capital expenditures, earnings and competitive position, other than as discussed in this section.

Many of the applicable requirements of environmental laws are satisfied by procedures that the Company adopts as best business practices in the ordinary course of its operations. For example, plant equipment that is used to crush aggregates products may, in the ordinary course of operations, have an attached water spray bar that is used to clean the stone. The water spray bar also serves as a dust control mechanism that complies with applicable environmental laws. Moreover, the Company does not separate the portion of the cost, depreciation, and other financial information relating to the water spray bar that is attributable only to environmental purposes, as such an allocation would be arbitrary. The incremental portion of such operating costs that is attributable to environmental compliance rather than best operating practices is impractical to quantify. Accordingly, the Company expenses costs in that category when incurred as operating expenses.

As is the case with others in the cement industry, the Company’s cement operations produce varying quantities of cement kiln dust (CKD). This production by-product consists of fine-grained, solid, highly alkaline material removed from cement kiln exhaust gas by air pollution control devices. Since much of the CKD is unreacted raw materials, it is generally permissible to recycle the CKD back into the production process, and large amounts often are treated in such manner. CKD that is not returned to the production process or sold as a product itself is disposed in landfills. CKD is currently exempted from federal hazardous waste regulations under Subtitle C of the Resource Conservation and Recovery Act.

The environmental accruals recorded by the Company are based on internal studies of the required remediation costs and estimates of potential costs that arise from time to time under federal, state and/or local environmental protection laws. Many of these laws and their attendant regulations are complex, and are subject to challenges and new interpretations by regulators and the courts. In addition, new laws are also adopted from time to time. It is often difficult to accurately and fully quantify the costs to comply with new rules until it is determined to which type of operations they will apply and the manner in which they will be implemented is more accurately defined. This process typically takes years to finalize, and the rules often change significantly from the time they are proposed to the time they are final. The Company typically has several appropriate alternatives available to satisfy compliance requirements, which could range from nominal costs to some alternatives that may be satisfied in conjunction with equipment replacement or expansion that also benefits operating efficiencies or capacities and carry significantly higher costs.

Management believes that its current accrual for environmental costs is reasonable, although those amounts may increase or decrease depending on the impact of applicable rules as they are finalized or amended from time to time and changes in facts and circumstances. The Company believes that its operations and facilities, both owned or leased, are in substantial compliance with applicable laws and regulations and that any noncompliance is not likely to have a material adverse effect on the Company’s operations or financial condition. See “Legal Proceedings” under Item 3 of this Form 10-K, “Note O: Commitments and Contingencies” of the “Notes to Financial Statements” of the Company’s consolidated financial statements included under Item 8, “Financial Statements and Supplemental Data,” of this Form 10-K, and the “Environmental Regulation and Litigation” section included under Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of this Form 10-K. However, future events, such as changes in or modified interpretations of existing laws and regulations or enforcement policies, or further investigation or evaluation of the potential health hazards of certain products or business activities, may give rise to additional compliance and other costs that could have a material adverse effect on the Company.

In general, mining, production and distribution facilities for aggregates, cement, ready mixed concrete, and asphalt must comply with air quality, water quality, and other environmental regulations, zoning and special use permitting requirements, applicable mining regulations, and federal health and safety requirements. As the Company locates and acquires new production and distribution facilities, the Company works closely with local authorities during the zoning and permitting processes to design new quarries, mines, production and distribution facilities in such a way as to minimize disturbances. The Company frequently acquires large tracts of land so that quarry, mine, production and distribution facilities can be situated at a substantial distance from surrounding property owners. Also, in certain markets the Company’s ability to transport material by rail and water allows it to locate its facilities further away from residential areas. The Company has established policies designed to minimize disturbances to surrounding property owners from its operations.

As is the case with other similarly situated companies, some of the Company’s products contain varying amounts of crystalline silica, a common mineral also known as quartz. Excessive, prolonged inhalation of very small-sized particles of crystalline silica has been associated with lung diseases, including silicosis, and several scientific organizations and some states, such as California, have reported that crystalline silica can cause lung cancer. The Mine Safety and Health Administration (MSHA) and the Occupational Safety and Health Administration (OSHA) have established occupational thresholds for crystalline silica exposure as respirable dust. The Company monitors occupational exposures at its facilities and implements dust control procedures and/or makes available appropriate respiratory protective equipment to maintain the occupational exposures at or below the required levels. The Company, through safety information sheets and other means, also communicates appropriate warnings and cautions its employees and customers about the risks associated with excessive, prolonged inhalation of mineral dust in general and crystalline silica in particular.

The Company is generally required by state or local laws or pursuant to the terms of an applicable lease to reclaim quarry sites after use. Future reclamation costs are estimated using statutory reclamation requirements and management’s experience and knowledge in the industry, and are discounted to their present value using a credit-adjusted, risk-free interest rate. The future reclamation costs are not offset by potential recoveries. For additional information regarding compliance with legal requirements, see “Note O: Commitments and Contingencies” of the “Notes to Financial Statements” of the Company’s consolidated financial statements included in Item 8, “Financial Statements and Supplemental Data,” of this Form 10-K. The Company performs activities on an ongoing basis, as an integral part of the normal quarrying process, that may reduce the ultimate reclamation obligations. For example, the perimeter and interior walls of an open pit quarry are sloped and benched as they are developed to prevent erosion and provide stabilization. This sloping and benching meets both safety regulations required by MSHA for ongoing operations as well as final reclamation requirements. Therefore, these types of activities are included in normal operating costs and are not a part of the asset retirement obligation. Historically, the

Company has not incurred substantial reclamation costs in connection with the closing of quarries. Reclaimed quarry sites owned by the Company are from time to time available for sale, typically for commercial development or use as reservoirs, or have been converted for recreational use by the local community.

We have identified certain risks and opportunities below with respect to the physical impacts of climate change and the transition to a low carbon economy.

Policy and Regulatory Matters A number of governmental bodies, including the U.S. Congress and various U.S. states, have proposed, enacted or are contemplating legislative and regulatory changes to mitigate or address the potential impacts of climate change, including provisions for greenhouse gas (GHG) emissions reporting or reductions, the use of alternative fuels, carbon credits (such as a "cap and trade" system) and a carbon tax. For example, in the United States, the United States Environmental Protection Agency (USEPA) promulgated a rule mandating that sources considered to be large emitters of GHGs report those emissions. The manufacturing operations of the Company’s Magnesia Specialties business release carbon dioxide, methane and nitrous oxides during the production of lime, magnesium oxide and hydroxide products. The Company’s two magnesia-based chemicals facilities, as well as its two cement plants in Texas and two newly-acquired cement plants in California, file annual reports of their GHG emissions in accordance with the USEPA reporting rule. The primary operations of the Company, however, including its aggregates, ready mixed concrete and asphalt and paving product lines, are not so-called “major” sources of GHG emissions subject to the USEPA reporting rule. In fact, most of the GHG emissions from aggregates plant operations are tailpipe emissions from mobile sources, such as heavy construction and earth-moving equipment.

In 2010, the USEPA also issued a GHG emissions permitting rule, referred to as the “Tailoring Rule,” which may require some industrial facilities to obtain permits for GHG emissions under the U.S. Clean Air Act’s Prevention of Significant Deterioration (PSD) and Title V operating permit programs. The U.S. Supreme Court ruled in June 2014 that the USEPA exceeded its statutory authority in issuing the Tailoring Rule but upheld the Best Available Control Technology (BACT) requirements for GHGs emitted by sources already subject to PSD or Title V permitting requirements for other pollutants. The Company’s cement plants, as well as its Magnesia Specialties plants, hold Title V Permits, and each (other than the Redding, California cement plant and the Manistee, Michigan facility) is also subject to PSD requirements. With the change of the U.S. presidential administration in 2021, it is currently unclear whether the USEPA will proceed with revisions of the Tailoring Rule or proceed otherwise. It is also unknown how the USEPA may revise BACT requirements. In fact, although several large-scale projects for carbon capture are in the development phase, no technologies or methods of operation for reducing or capturing GHGs have yet been proven successful in large scale applications, other than improvements in fuel efficiency. Thus, if future modifications to our facilities require PSD review for other pollutants, GHG BACT requirements could be triggered and may require significant additional costs. However, it is currently impossible to estimate the cost of any such future requirements.

U.S. President Biden also has taken a number of steps to make climate change a central focus of his administration, including issuing a pair of executive orders and a presidential memorandum making climate change central to U.S. policy and setting out several administrative priorities and undertakings. President Biden reentered the Paris Agreement in January 2021 and later announced the United States’ reduction commitments under the Paris Agreement, including a 50% to 52% economy-wide reduction in net GHG emissions from 2005 levels by 2030. More recently, President Biden set out a pact with 103 countries and jurisdictions, known as the Global Methane Pledge, to reduce global methane emissions by 30% from 2020 levels by the end of the decade. In November 2021, President Biden signed into law the Infrastructure Investment and Jobs Act (the “IIJ Act”), which provides billions of dollars in new funding for public transit and clean energy projects intended, in part, to address climate change, including road, bridge and other major infrastructure projects. In addition, the currently-proposed Build Back Better bill (the “BBB bill”) calls for significant U.S. government investments in the commercialization and scale-up of energy and climate technologies, as well as tax credits for businesses that invest in clean energy. Although it is still too early to determine the actions the federal government will ultimately take to implement these orders, commitments and laws, or the full scope, timing or ramifications of such measures, it is clear that the current administration intends and has already begun to make a significant and sweeping push on the climate front and, like other signatories to the Paris Agreement, intends to pursue a goal of a Net Zero GHG by 2050. These measures, combined with Democratic control of both chambers of the 117^th U.S. Congress, also suggest that additional executive and/or legislative action is reasonably likely, although the timing and scope of such action is unclear. It also seems probable that the USEPA and other agencies will use their rule-making authority and procurement decisions to further address climate change. Various states where the Company has operations have enacted or are considering climate change initiatives as well, and the Company may be subject to state regulations in addition to any federal laws and rules that are passed. The Company’s cement plants in California have not taken part in the auctions because the state previously allocated emission rights free of charge to the cement industry, which

have been sufficient for operations to date. The Company will continue to monitor the cap-and-trade program closely as part of its production planning to assess the impact of potentially stricter requirements in the future and/or the need to purchase rights to emit GHGs in California.

If and when the USEPA issues new regulations and/or Congress passes additional legislation restricting GHGs emissions, the Woodville, Ohio and Manistee, Michigan Magnesia Specialties operations, as well as the Company’s cement plants in Texas and California, which release CO₂ in certain of their processes and use carbon-based fuels for power equipment, kilns and the Company’s mobile fleet, will likely be subject to any new requirements. The Company anticipates that any increased operating costs or taxes relating to GHG emission limitations at the Woodville or cement facilities would be passed on to customers. The magnesium oxide products produced at the Manistee operation, however, compete against other products that, due to the form and/or structure of the source material, require less energy in the calcination process, resulting in the generation of fewer GHGs per ton of production. Due to GHG emissions requirements, the Manistee facility may be required to absorb additional costs, including for taxes or capital investments in order to maintain competitive pricing in that market. In addition, the cement produced by the Company’s cement plants, like other U.S. operators, is subject to strict limits set by the U.S. Department of Transportation (USDOT) and other agencies, including those relating to “clinker substitution”, or the replacement of ground clinker in cement with alternate materials such as pozzolan, slag and fly ash, which has implications for the Company’s fuel use and efforts to reduce GHG emissions from its cement operations. For example, various industry associations are engaged in an effort to ask the USDOT and other agencies to revise their standards allowing for greater rates of clinker substitution, similar to the rates currently permitted for European cement producers. If higher rates of substitution and blending are, in fact, permitted in the future, the result is likely to be both reduced clinker and power consumption in cement production, which would, in turn, reduce GHGs emitted in connection with each ton of cement produced in the United States.

In light of the various regulatory uncertainties, the Company at this time cannot reasonably predict what the costs of any future compliance requirements may be. Nonetheless, the Company does not believe it will have a material adverse effect on the financial condition or results of the operations of either the Magnesia Specialties business or Building Materials business. The Company’s four cement plants, like those of other cement operators, require combustion of significant amounts of fuel to generate high kiln temperatures and creates carbon dioxide as a product of the calcination process, which is an unavoidable step in making cement clinker. Accordingly, the Company continues to closely monitor GHG regulations and legislation and its potential impact on the Company’s cement business, financial condition and product demand. The Company does not currently expect the impact to the cement business to be material to the Company.

Physical Impacts In addition to impacts from increased regulation, climate change may result in physical and financial impacts that could have adverse effects on the Company’s operations or financial condition. Physical impacts may include disruptions in production and/or regional supply or product distribution networks due to major storm events, shifts in regional rainfall and temperature patterns and intensities, as well as flooding from sea level changes. In addition, production and shipment levels for the Building Materials business correlate with general construction activity, which occurs outdoors and, as a result, is affected by erratic weather patterns, seasonal changes and other unusual or unexpected weather-related conditions, which can significantly affect that business. Excessive rainfall and other severe weather jeopardize production, shipments and profitability in all markets served by the Company. In addition, climate and inclement weather can reduce the useful life of an asset. In particular, the Company’s operations in the southeastern and Gulf Coast regions of the United States and The Bahamas are at risk for hurricane activity, most notably in August, September and October. The last few years brought an unprecedented amount of precipitation to the United States and particularly to Texas and the southeastern United States, notably the Carolinas, Florida and Georgia, where it impacted the Company’s facilities. In California and Arizona, continuing drought has led to water use restrictions in numerous water districts, and insufficient supply of water for our operations in those areas could impact production.

Other Transition Risks and Opportunities The Company’s businesses also are dependent on reliable sources of electricity and fuels. The Company could incur increased costs or disruptions in its operations if climate change regulation or severe weather impacts the price or availability of electricity or fuels or other materials used in its operations. These and other climate-related risks, such as a downturn in the construction sector due to harsh weather, high precipitation or other changes in weather, also could impact the Company’s customers, which could lead to reduced demand for the Company’s products. The Company may not be able to pass on to its customers all the costs relating to these risks.

Notwithstanding the foregoing risks and uncertainties relating to climate change, there may also be opportunities for the Company to increase its business or revenues, both in terms of the physical impacts of climate change and market opportunities associated with the transition to a low carbon economy. For example, warm and/or moderate temperatures in March and November allow the construction season to start earlier and end later, respectively, which could have meaningful positive impacts on the Company’s first- and fourth-quarter results, respectively. From a regulatory standpoint, as noted

above, the recently-passed IIJ Act provides billions of dollars in new funding for roads, bridge and other major infrastructure projects. This may result in new public transit and clean energy projects that address climate change. In addition, the Company’s magnesium hydroxide products are used to increase fuel efficiency in various industries, including both coal- and gas-fired electricity generation, which has a direct impact on reducing energy use and GHG emissions by more GHG-intense companies. Finally, the desire for sustainable building solutions has led to greater recognition of the benefits of concrete construction in the effort to move to a circular economy thorough innovative products, longevity and recyclability, and increased demand for green construction projects would have a direct impact on the Company’s cement and concrete business.

Organization and Governance The Company’s Board of Directors plays an essential role in determining strategic priorities and considers sustainability issues an integral part of its business oversight. The Company established an Ethics, Environment, Safety and Health (EESH) Committee in 1994, which today meets at least three times annually and receives reports directly from management relating to environmental, safety, ethics and other sustainability matters, including GHG and climate matters. The EESH Committee reports to the full Board, and number of other Board committees have overlapping responsibility for sustainability matters. Management receives at least quarterly updates from operating personnel directly responsible for compliance relating to EESH matters. The Company’s sustainability function is led by a Head of Sustainability, who reports to the Executive Vice President and General Counsel on climate and other sustainability matters. The Company believes the above approach has been effective in integrating sustainability as a core element of its corporate governance.

In an effort to mitigate the risks to the Company associated with GHG emissions while ensuring and improving financial sustainability, the Company has adopted a corporate-wide management strategy that has resulted in multiple operating initiatives to implement or evaluate GHG reduction processes and technologies that also improve operational efficiencies, including: using alternative fuels such as biodiesel; reducing overall fuel use by converting from quarry trucks to conveyor belt systems; right-sizing quarry trucks to marry the appropriately sized truck with the size of production to reduce the number of required trips; replacing older railcars with more efficient, high-capacity models that reduce the number of required trips; adding rail capacity in lieu of truck movements; and installing state-of-the-art emissions control equipment at one of the Company’s magnesia plants and tire processing systems for fuel, as well as a larger natural gas line, at one of the Company’s cement plants. The Company’s Midlothian cement plant has been recognized by the USEPA as a high-performing, energy-efficient facility following investments in innovative air pollution control technologies and usage of alternative fuels.

The Company owns approximately 170,000 acres of land, the vast majority of which is used in connection with active facilities. The Company regularly reviews its land holdings to determine their highest and best use based on its management expertise, and sell or develop for sale surplus property. Land holdings that do not have economically recoverable reserves for current or future mining or are otherwise not in locations that complement the Company’s operating facilities are considered as candidates for sale.

As of January 31, 2022, the Company has approximately 10,000 employees, of which approximately 7,600 are hourly employees and approximately 2,400 are salaried employees. Approximately 1,400 hourly employees (14% of the Company’s employees) are represented by labor unions, representing 19% of the Building Materials business’ hourly employees and 100% of the Magnesia Specialties segment’s hourly employees. The Company’s principal union contracts for the Magnesia Specialties business cover employees at the Manistee, Michigan, magnesia-based chemicals plant and the Woodville, Ohio, lime plant. The Woodville and Manistee collective bargaining agreements expire June 2022 and August 2027, respectively. The Company believes it has good relations with its employees, including its unionized workforce. While the Company’s management does not expect material difficulties in renewing these labor contracts, there can be no assurance that a successor agreement will be reached at any of these locations.

Management believes the Company’s success depends on its ability to attract, develop and retain key personnel. None of Martin Marietta’s accomplishments are possible without its employees; the people who both drive the work and are most affected by it. These individuals are the heart of Martin Marietta. The Company’s management oversees various employee initiatives to foster and improve its employees and the Management Development and Compensation Committee regularly reviews the compensation program to achieve those objectives. In 2020, the Company also launched an Inclusion and Engagement Task Force, comprised of employees with diverse race, gender, background and experience, which is focused on hiring, developing, and retaining diverse employees to strengthen our talent pipeline and increase employee engagement and retention.

Health and safety in the workplace is one of the Company’s core values. The Guardian Angel safety program provides that every employee has the right, and the obligation, to stop any unsafe condition and that zero safety incidents is achievable. It includes the concept that every employee acts as a wingman for other employees, to observe and act on any situation that potentially creates unsafe circumstances. The companywide safety performance, inclusive of its more recently acquired operations, delivered better than world-class safety levels in 2021, the fifth consecutive year for the Company’s lost-time incident rate.

The COVID-19 pandemic has underscored the importance of keeping the Company’s employees safe and healthy. In response to the pandemic, the Company has taken actions aligned with the Centers for Disease Control and Prevention to implement robust protocols to protect its workforce so that they can safely perform their jobs.

In 2019, the Company established a new employer brand — ONE — that reflects the thoughts, feelings and hearts of employees at every level of Martin Marietta. This included a standard approach to safety mentoring that ensures every employee has the knowledge and resources needed to complete their work safely and efficiently. The Company also established a World Class Task Force, whose mission is to improve Martin Marietta and is fostering a level of communication never before seen at the Company. In 2020, the Company launched an Inclusion and Engagement Steering Committee, comprised of diverse employees across the Company. The Company has taken these steps to better allow it to grow responsibly and encourage employee engagement.

The Company maintains an internet address at www.martinmarietta.com. The Company makes available free of charge through its internet website its Annual Report on Form 10‑K, Quarterly Reports on Form 10‑Q, Current Reports on Form 8‑K, and amendments to those reports, if any, filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (Exchange Act). You can access the Company’s filings with the SEC through the SEC website at www.sec.gov or through our website, and the Company strongly encourages you to do so. Martin Marietta routinely posts information that may be important to investors on our website at www.ir.martinmarietta.com, and we use this website address as a means of disclosing material information to the public in a broad, non-exclusionary manner for purposes of the SEC’s Regulation Fair Disclosure (Reg FD). The contents of our website are not incorporated by reference in this Form 10-K and shall not be deemed “filed” under the Securities Exchange Act of 1934, as amended. The Company undertakes no obligation to update any statements herein for revisions or changes after the filing date of this Form 10-K other than as required by law.

The Company has adopted a Code of Ethical Business Conduct that applies to all of its Board of Directors, officers and employees. The Company’s code of ethics is available on the Company’s website at www.martinmarietta.com. The Company will disclose on its internet website any waivers of or amendments to its code of ethics as it applies to its directors and executive officers.

The Company has adopted a set of Corporate Governance Guidelines to address matters of fundamental importance relating to the corporate governance of the Company, including director qualifications and responsibilities, responsibilities of key board committees, director compensation and similar matters. Each of the Audit Committee, the Management Development and Compensation Committee, and the Nominating and Corporate Governance Committee of the Board of Directors has adopted a written charter addressing various matters of importance relating to each committee, including the committee’s purposes and responsibilities, an annual performance evaluation of each committee and similar matters. These Corporate Governance Guidelines, and the charters of each of these committees, are available on the Company’s website at www.martinmarietta.com.

The Company’s Chief Executive Officer and Chief Financial Officer are required to file with the SEC each quarter and each year certifications regarding the quality of the Company’s public disclosure of its financial condition. The annual certifications are included as exhibits to this Form 10‑K. The Company’s Chief Executive Officer is also required to certify to the New York Stock Exchange each year that he is not aware of any violation by the Company of the New York Stock Exchange corporate governance listing standards.

An investment in Martin Marietta common stock or debt securities involves risks and uncertainties. You should consider the following factors carefully, in addition to the other information contained in this Form 10-K, before deciding to purchase or otherwise trade the Company’s securities.

This Form 10-K and other written reports and oral statements made from time to time by the Company contain statements that, to the extent they are not recitations of historical fact, constitute forward-looking statements within the meaning of federal securities law. Investors are cautioned that all forward-looking statements involve risks and uncertainties, and are based on assumptions that the Company believes in good faith are reasonable, but which may be materially different from actual results. Investors can identify these statements by the fact that they do not relate only to historic or current facts. The words “may,” “will,” “could,” “should,” “anticipate,” “believe,” “estimate,” “expect,” “forecast,” “intend,” “outlook,” “plan,” “project,” “scheduled,” and similar expressions in connection with future events or future operating or financial performance are intended to identify forward-looking statements. Any or all of the Company’s forward-looking statements in this Form 10‑K and in other publications may turn out to be wrong.

Statements and assumptions on future revenues, income and cash flows, performance, economic trends, the outcome of litigation, regulatory compliance, and environmental remediation cost estimates are examples of forward-looking statements. Numerous factors, including potentially the risk factors described in this section, could affect our forward-looking statements and actual performance.

Investors are also cautioned that it is not possible to predict or identify all such factors. Consequently, the reader should not consider any such list to be a complete statement of all potential risks or uncertainties. Other factors besides those listed may also adversely affect the Company and may be material to the Company. The Company has listed the known material risks it considers relevant in evaluating the Company and its operations. The forward-looking statements in this document are intended to be subject to the safe harbor protection provided by Section 27A of the Securities Act of 1933 and Section 21E of the Exchange Act. These forward-looking statements are made as of the date hereof based on management’s current expectations, and the Company does not undertake an obligation to update such statements, whether as a result of new information, future events, or otherwise, other than as required by law.

For a discussion identifying some important factors that could cause actual results to vary materially from those anticipated in the forward-looking statements, see the factors listed below, along with the discussion of “Competition” under Item 1 of this Form 10-K, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under Item 7 of this Form 10-K, and “Note A: Accounting Policies” and “Note O: Commitments and Contingencies” of the “Notes to Financial Statements” of the Company’s consolidated financial statements included under Item 8, “Financial Statements and Supplemental Data,” of this Form 10-K.

Our business is cyclical and depends on activity within the construction industry

Economic and political uncertainty can impede growth in the markets in which we operate. Demand for our products, particularly in the private nonresidential and residential construction markets, could decline if companies and consumers are unable to obtain credit for construction projects or if an economic slowdown causes delays or cancellations of capital projects. State and federal budget issues may also hurt the funding available for infrastructure spending. The lack of available credit may limit the ability of states to issue bonds to finance construction projects. As a result of these issues, several of our top revenue-generating states, from time to time, stop bidding or slow bid projects in their transportation departments.

We sell most of our aggregates (our primary business) and our cement products to the construction industry and, therefore, our results depend on that industry’s strength. Since our businesses depend on construction spending, which can be cyclical, our profits are sensitive to national, regional and local economic conditions and the intensity of the underlying spending on aggregates and cement products. Construction spending is affected by economic conditions, changes in interest rates, demographic and population shifts, and changes in construction spending by federal, state and local governments. If economic conditions change, a recession in the construction industry may occur and affect the demand for our products. The recession of the late 2000s and early 2010s (the Great Recession) was an example, and our shipment volumes were significantly reduced. Construction spending can also be disrupted by terrorist activity and armed conflicts.

While our business operations cover a wide geographic area, our earnings depend on the strength of the local economies in which we operate because of the high cost to transport our products relative to their selling price. If economic conditions and construction spending decline significantly in one or more areas, particularly in the Building Materials business’ top five revenue-generating states of Texas, Colorado, North Carolina, Georgia and Minnesota, our profitability will decrease. We experienced this situation during the Great Recession.

The Great Recession resulted in large declines in shipments of aggregates products in our industry. Subsequent to the Great Recession and until the impact from COVID-19 beginning in the first quarter of 2020, we experienced slow-but-steady construction growth that coincided with the longest economic recovery in United States history.

While historical spending on public infrastructure projects has been, comparatively, more stable as governmental appropriations and expenditures are typically less interest rate-sensitive than private sector spending, we experienced a slight retraction in aggregates shipments to the infrastructure market after uncertainty regarding the passage of the Highway and Transportation Funding Act of 2014. Contractors were not able to get any certainty on the availability of federal infrastructure funding until late 2015 with the enactment of the Fixing America’s Surface Transportation (FAST) Act. We expect that the passage of the Infrastructure Investment and Jobs Act (the IIJ Act) should provide funding visibility for the foreseeable future.

Our Building Materials business is seasonal and subject to the weather, which can significantly impact operations

Since the heavy-side construction business is conducted outdoors, erratic weather patterns, seasonal changes and other weather-related conditions affect our business. Adverse weather conditions, including hurricanes and tropical storms, cold weather, snow, heavy or sustained rainfall, wildfires and earthquakes, reduce construction activity, restrict the demand for our products and impede our ability to efficiently transport material. Adverse weather conditions also increase our costs and reduce our production output as a result of power loss, needed plant and equipment repairs, time required to remove water from flooded operations and similar events. Severe drought conditions can restrict available water supplies and restrict production. Production and shipment levels of the Building Materials business’ products follow activity in the construction industry, which typically are strongest in the spring, summer and fall. Because of the weather’s effect on the construction industry’s activity, the production and shipment levels for the Company’s Building Materials business, including all of its aggregates-related downstream operations, vary by quarter. The second and third quarters are generally subject to heavy precipitation, and thus are more profitable if precipitation is lighter, while the first and fourth quarters are subject to the impacts of winter weather, and thus are generally the least profitable and are more profitable if the impact of winter weather is less. The Company’s operations in the southeastern and Gulf Coast regions of the United States and The Bahamas are at risk for hurricane activity, most notably in August, September and October. The Company’s California operations are at risk for wildfire activity and water use restrictions given ongoing severe drought conditions.

Our businesses could be adversely affected by the ongoing COVID-19 pandemic, or any other outbreak of disease, epidemic or pandemic, or similar public health threat, or fear of such an event and its related economic and societal response

Our businesses could be negatively impacted by the widespread outbreak of an illness or other communicable disease, or any other public health crisis that results in economic and trade disruptions. In or around December 2019, COVID-19 was initially reported. Four months later, in March 2020, the World Health Organization declared it a global pandemic. The proliferation of COVID-19 cases in the United States, and the extent that geography of outbreaks primarily matches the regions in which the Company’s Building Materials business principally operates, can negatively impact economic activity, consumer confidence and discretionary spending, and overall market conditions. Further, COVID-19 could continue to negatively affect the health of our employees, employee productivity, customer purchasing patterns and fulfillment of purchase orders, availability of supplies, pricing for raw materials, and the ability to transport materials via the Company’s distribution network. While our operations have been designated as “essential” under applicable government orders otherwise restricting business activities to prevent further outbreak of COVID-19, and accordingly have been permitted to continue to operate, the Company continues to actively monitor the situation and may take further actions that alter its business operations including any that may be required by federal, state or local authorities or that the Company determines are in the best interests of its employees, customers, suppliers, vendors, communities and other stakeholders. Demand for aggregates products, particularly in the infrastructure construction market, is affected by federal, state and local budget and deficit issues. Remote working trends are reducing miles driven, which can have a negative impact on various revenue streams that fund roadway projects. Further, delays or cancellations of projects in the nonresidential and residential construction markets, which combined accounted for 61% of aggregates shipments for the year ended December 31, 2021, could occur if companies and consumers are unable to obtain financing for construction projects or if consumer confidence continues to be eroded by economic uncertainty.

Our Building Materials business depends on the availability of quality aggregates reserves or deposits and our ability to mine them economically

Our challenge is to find quality aggregates deposits that we can mine economically, with appropriate permits, near either growing markets or long-haul transportation corridors that economically serve applicable markets. As communities have grown, they have settled in and around attractive quarrying locations and have imposed restrictions on mining. We try to meet this challenge by identifying and permitting sites prior to economic expansion, buying more land around our existing quarries to increase our mineral reserves, developing underground mines and developing a distribution network that transports aggregates products by various methods, including rail and water. While our distribution network allows us to transport our products longer distances than would normally be considered economical, we can give no assurances that we will be successful at this strategy.

Our businesses have many competitors, some of whom are bigger and have more resources than we do. Some of our competitors operate on a worldwide basis. Our results are affected by the number of competitors in a market, the production capacity that a particular market can accommodate, the pricing practices of other competitors and the entry of new competitors in a market. We also face competition for some of our products from alternative products. For example, our Magnesia Specialties business may compete with other chemical products that could be used instead of our magnesia-based products. As other examples, our aggregates, ready mixed concrete, and asphalt and paving businesses may compete with recycled asphalt and concrete products that could be used in certain applications instead of new products and our cement operations may compete with international competitors who are importing products into the United States from jurisdictions with lower production and regulatory costs.

Our future growth may depend in part on acquiring other businesses in our industry, and we may acquire businesses by paying all or in part with shares of our common stock

We expect to continue to grow, in part, by acquiring other businesses. In the past, we have made acquisitions to strengthen our existing locations, expand our operations and enter new geographic markets. We will continue to pursue selective acquisitions, joint ventures or other business arrangements we believe will help our Company grow. However, the continued

success of our acquisition program will depend on our ability to find and buy other attractive businesses at an appropriate price and our ability to integrate acquired businesses into our existing operations. We cannot assume there will continue to be attractive acquisition opportunities for sale at reasonable prices that we can successfully integrate into our operations.

We may decide to pay all or part of the purchase price of any future acquisition with shares of our common stock. We may also use our stock to make strategic investments in other companies to complement and expand our operations. If we use our common stock in this way, the ownership interests of our existing shareholders at that time will be diluted and the price of our stock could decline. We operate our businesses with the objective of maximizing long-term shareholder return.

Our integration of the acquisition or business combination with other businesses may not be as successful as projected

We have a successful history of business combinations and integration of these businesses into our heritage operations. However, in connection with the integration of any other business that we acquire, there is a risk that we will not be able to achieve such integration in a successful manner or on the time schedule we have projected or in a way that will achieve the level of synergies, cost savings or operating efficiencies we forecast from the acquisition.

Any other significant business acquisition or combination we might choose to undertake may require that we devote significant management attention and resources to preparing for and then integrating our business practices and operations. Based on our history, we believe we would be successful in this integration process. Nevertheless, we may fail to realize some of the anticipated benefits of any potential acquisition or other business combination that we pursue in the future if the integration process takes longer than expected or is more costly than expected. Potential difficulties we may encounter in the integration process include:

In pursuing our business strategy, we conduct discussions, evaluate opportunities and enter into acquisition agreements. Acquisitions involve significant challenges and risks, including risks that:

If our cement or Magnesia Specialties businesses becomes capacity-constrained, we may be unable to timely satisfy the demand for some of our products, and any resulting changes in customers would introduce volatility to the earnings of these segments. We can address capacity needs by enhancing our manufacturing productivity, increasing the operational availability of equipment, reducing machinery down time and extending machinery useful life. Future demand for our products may require us to expand our manufacturing capacity further, particularly through the purchase of additional manufacturing equipment. However, we may not be able to increase our capacity in time to satisfy increases in demand that may occur from time to time. Capacity constraints may prevent us from satisfying customer orders and result in a loss of sales to competitors that are not capacity-constrained. In addition, we may suffer excess capacity if we increase our capacity to meet actual or anticipated demand and that demand decreases or does not materialize. While we are permitted to expand production by up to 0.8 million additional tons at our Midlothian cement plant, it could take us a significant period of time before such production expansion could come to fruition.

Our cement business could suffer if cement imports from other countries significantly increase or are sold in the United States in violation of U.S. fair trade laws

In the past, the cement industry has obtained antidumping orders imposing duties on imports of cement and clinker from other countries that violated U.S. fair trade laws. Currently, an antidumping order against cement and clinker from Japan is set to expire but is under review for extension by the Federal Trade Commission. As has always been the case, cement operators with import facilities can purchase cement from other countries, such as those in Latin America and Asia, which could compete with domestic producers. In addition, if environmental regulations increase the costs of domestic producers compared to foreign producers that are not subject to similar regulations, imported cement could achieve a significant cost advantage over domestically produced cement. An influx of cement or clinker products from countries not subject to antidumping orders, or sales of imported cement or clinker in violation of U.S. fair trade laws, could adversely affect our cement product line.

Changes in legal requirements and governmental policies concerning zoning, land use, the environment, health and safety and other areas of the law, as well as litigation relating to these matters, affect our businesses. Our operations expose us to the risk of material environmental liabilities

Many federal, state and local laws and regulations relating to zoning, land use, air emissions (including carbon dioxide and other GHGs), water use, allocation and discharges, waste management, noise and dust control, mining, land reclamation and other environmental, health and safety matters govern our operations. Some of our operations require permits, which may impose additional operating standards, and are subject to modification, renewal and revocation. Certain of our operations may from time to time involve the use of substances that are classified as toxic or hazardous within the meaning of these laws and regulations. Despite our extensive efforts to remain in strict compliance at all times with all applicable laws and regulations, the risk of liabilities, particularly environmental liabilities, is inherent in the operation of our businesses. These potential liabilities could result in material costs, including fines or personal injury or damages claims, which could have an adverse impact on our operations and profitability.

Future events, including changes in existing laws or regulations or enforcement policies, or further investigation or evaluation of the potential health hazards of some of our products or business activities may result in additional or unanticipated compliance and other costs. We could be required to invest in preventive or remedial action, like pollution control facilities, which could be substantial or which could result in restrictions on our operations or delays in obtaining required permits or other approvals.

Our operations are subject to manufacturing, operating and handling risks associated with the products we produce and the products we use in our operations, including the related storage and transportation of raw materials, explosives, products, hazardous substances and wastes. We are exposed to hazards including storage tank leaks, explosions, discharges or releases of hazardous substances, exposure to dust, and the operation of mobile equipment and manufacturing machinery.

These risks can subject us to potentially significant liabilities relating to personal injury or death, or property damage, and may result in civil or criminal penalties, which could hurt our productivity or profitability. For example, from time to time we investigate and remediate environmental contamination relating to our prior or current operations, as well as operations we

have acquired from others, and in some cases we have been or could be named as a defendant in litigation brought by governmental agencies or private parties to investigate or clean-up such contamination.

We are involved from time to time in litigation and claims arising from our operations. While we do not believe the outcome of pending or threatened litigation will have a material adverse effect on our operations or our financial condition, an unexpected and material adverse outcome in a pending or future legal action could potentially have a negative effect on our Company.

Climate change and related legislation or regulations may adversely impact our business, including potential physical and financial impacts

A number of governmental bodies, including the U.S. Congress and various U.S. states, have proposed, enacted or are contemplating legislative and regulatory changes to mitigate or address the potential impacts of climate change, including provisions for GHG emissions reductions or the use of alternative fuels, carbon credits (such as a "cap and trade" system) and a carbon tax. For example, in the United States, the USEPA promulgated a mandatory reporting rule covering GHG emissions from sources considered to be large emitters. The USEPA has also promulgated a GHG emissions permitting rule, referred to as the Tailoring Rule, which may require some industrial facilities to obtain operating permits for GHG emissions under the U.S. Clean Air Act. Although the U.S. Supreme Court subsequently ruled in June 2014 that the USEPA exceeded its statutory authority in issuing the Tailoring Rule but upheld the BACT requirements for GHGs emitted by sources that already require Title V operating permits or are subject to PSD requirements for other pollutants. With the change of the U.S. presidential administration in 2021, it is currently unclear whether the USEPA will proceed with revisions of the Tailoring Rule or proceed in a different direction, nor is it known how the USEPA may revise the BACT requirements. If future modifications to our Magnesia Specialties or cement facilities require PSD review for other pollutants, GHG permitting requirements may also be triggered, which could require us to incur significant additional costs. It is not possible, however, to estimate the cost of any future requirements at this time.

U.S. President Biden also has taken a number of steps to make climate change a central focus of his administration, including issuing a pair of executive orders and a presidential memorandum making climate change central to U.S. Policy and setting out several administrative priorities and undertakings. President Biden reentered the Paris Agreement in January 2021 and later announced the United States’ reduction commitments under the Paris Agreement, including a 50% to 52% economy-wide reduction in net GHG emissions from 2005 levels by 2030. More recently, President Biden set out a pact with 103 countries and jurisdictions, known as the Global Methane Pledge, to reduce global methane emissions by 30% from 2020 levels by the end of the decade. In November 2021, President signed into law the IIJ Act, which provides billions of dollars in new funding for public transit and clean energy projects intended, in part, to address climate change, including road, bridge and other major infrastructure projects. In addition, the currently-proposed Build Back Better bill calls for significant U.S. government investments in the commercialization and scale-up of energy and climate technologies, as well as tax credits for businesses that invest in clean energy. Although it is still too early to determine the actions the federal government will ultimately take to implement these orders, commitments and laws, or the full scope, timing or ramifications of such measures, it is clear that the administration intends and has begun to make a significant and sweeping push on the climate front and, like other signatories to the Paris Agreement, intends to pursue a goal of a Net Zero GHG by 2050. These measures, combined with Democratic control of both chambers of the U.S. Congress, also suggest that additional executive and/or legislative action is likely, although the timing and scope of such action is unclear. Additionally, it seems probable that the USEPA and other agencies will use their rule-making authority and procurement decisions to further address climate change. Various states where we have operations have enacted or are considering climate change initiatives as well, and we may be subject to state regulations in addition to any federal laws and rules that are passed. For example, California has had a cap-and-trade program for emissions rights since 2012. In light of the various regulatory uncertainties, we cannot at this time reasonably predict what the costs of any future compliance requirements may be, but we do not believe it will have a material adverse effect on the financial condition or results of the operations of either the Magnesia Specialties business or Building Materials business. We continue to monitor GHG regulations and legislation and its potential impact on our cement business, financial condition and product demand.

Although our aggregates, ready mixed concrete and asphalt and paving operations are not so-called “major” sources of GHG emissions subject to the USEPA reporting rule, any additional regulatory restrictions on emissions of GHGs imposed by the USEPA will likely impact our magnesia-based chemicals operations in Woodville, Ohio, and Manistee, Michigan, as well as our two cement plants in Texas and our two cement plants in California, each of which currently file annual reports of GHG emissions as required by the USEPA reporting rule. However, it is currently impossible to estimate the cost of any such future requirements at this time. In addition, we may not be able to recover any increased operating costs, taxes or capital investments (other than with respect to any carbon reduction or capture technologies) relating to GHG emission limitations at those plants from our customers in order to remain competitive in pricing in the relevant markets.

In addition to impacts from increased GHG and other climate-related regulation, climate change may result in physical and financial impacts that could have adverse effects on our operations or financial condition. Given the nature of our operations, physical impacts may include disruptions in production and/or regional supply or product distribution networks due to major storm events, shifts in regional rainfall and temperature patterns and intensities, as well as flooding from sea level changes. In addition, production and shipment levels for the Building Materials business correlate with general construction activity, most of which occurs outdoors and, as a result, is affected by erratic weather patterns, seasonal changes and other unusual or unexpected weather-related conditions, which can significantly affect that business. Excessive rainfall and other severe weather events also jeopardize production, shipments and profitability in all markets served by our operations. In particular, our operations in the southeastern and Gulf Coast regions of the United States and The Bahamas are at risk for hurricane activity, most notably in August, September and October. In addition, our California operations are at risk for wildfires, which is exacerbated by prolonged drought, which may also result in water restrictions. Increased intensity and frequency of extreme weather events have been linked to climate change, and further global warming may increase the risk of adverse weather conditions. Climate and inclement weather can also reduce the useful life of an asset.

Our businesses also are dependent on reliable sources of electricity and fuels. We could incur increased costs or disruptions in our operations if climate change legislation and regulation or severe weather impacts the price or availability of purchased electricity or fuels or other materials used in our operations. These and other climate-related risks, such as a downturn in the construction sector due to harsh weather, high precipitation or other changes in weather, could impact our customers, which could lead to reduced demand for our products. We may not be able to pass on to our customers all the costs related to mitigating these risks.

The overall impacts of climate change on our operations and the Company are highly uncertain and difficult to estimate. However, climate change legislation and regulation concerning GHGs could have a material adverse effect on our future financial position, results of operations or cash flows.

Our business is dependent on funding from a combination of federal, state and local sources

Our products are used in public infrastructure projects, which include the construction, maintenance and improvement of highways, streets, roads, bridges, schools and similar projects. Accordingly, our business is dependent on the level of federal, state, and local spending on these projects. The visibility into future federal infrastructure funding was clarified and stabilized to some extent in 2015 with the passage of the Fixing America’s Surface Transportation, or FAST Act, which reauthorized federal highway and transportation funding programs. Further clarification was provided with the passage of the $1 trillion IIJ Act in November 2021, which contains a five-year surface transportation reauthorization plus $110 billion in new funding for roads, bridges and other hard infrastructure projects. At the federal level, we expect to see stable infrastructure spending in 2022, with more meaningful impact from the IIJ Act beginning in 2023. Further, we continue to expect to see increased infrastructure spending at the state and local levels in 2022, aided by $10 billion for state departments of transportation provided by the December 2020 federal stimulus package as well as $14 billion of approved ballot initiatives. We cannot be assured, however, of the amount and timing of appropriations for spending on infrastructure projects.

Our operations are highly dependent upon the interest rate-sensitive construction and steelmaking industries. Therefore, our business in these industries may decline if interest rates rise and costs increase.

Notably, demand in the residential construction market in which we sell our aggregates products is affected by interest rates which are currently at historically low levels. There can be no assurance, however, that interest rates will not increase in the future, affecting our business in an adverse manner. The residential construction market accounted for 25% of our organic aggregates shipments in 2021.

Aside from these inherent risks from within our operations, our earnings are also affected by changes in short-term interest rates. However, rising interest rates are not necessarily predictive of weaker operating results.

Rising interest rates could also result in disruptions in the credit markets, which could affect our business, as described in greater detail under “Disruptions in the credit markets could affect our business” below.

A number of factors may increase our future effective income tax rate, including:

Any significant increase in our future effective income tax rate could reduce net earnings and free cash flow for future periods.

Labor unions represent approximately 14% of the hourly employees of our Building Materials business and all of the hourly employees of our Magnesia Specialties business. Our collective bargaining agreements for employees of our Magnesia Specialties business at the Woodville, Ohio, lime plant and the Manistee, Michigan magnesia chemicals plant expire in and June 2022 and August 2027, respectively.

Disputes with our trade unions, or the inability to renew our labor agreements, could lead to strikes or other actions that could disrupt our businesses, raise costs and reduce revenues and earnings from the affected locations.

We depend on the recruitment and retention of qualified personnel, and our failure to attract and retain such personnel could adversely affect our business.

Our success depends to a significant degree upon the continued services of, and on our ability to attract and retain, our key personnel and executive officers, including qualified management, technical, marketing and sales, and support personnel. Competition for such personnel is intense, and we may not be successful in attracting or retaining such qualified personnel, which could negatively affect our business. In addition, because of our reliance on our senior management team, the unanticipated departure of any key member of our management team could have an adverse effect on our business. Our future success depends, in part, on our ability to identify and develop or recruit talent to succeed our senior management and other key positions throughout the organization. If we fail to identify and develop or recruit successors, we are at risk of being harmed by the departures of these key employees. Effective succession planning is also important to our long-term success. Failure to ensure effective transfer of knowledge and smooth transitions involving key employees could hinder our strategic planning and execution.

Investment returns on our pension assets may be lower than expected, or interest rates may decline, requiring us to make significant additional cash contributions to our benefit plans.

A portion of our current and former employees have accrued benefits under our defined benefit pension plans. Requirements for funding our pension plan liabilities are based on a number of actuarial assumptions, including the expected rate of return on our plan assets and the discount rate applied to our pension plan obligations. Fluctuations in equity market returns and changes in long-term interest rates could increase our costs under our defined benefit pension plans and may significantly affect future contribution requirements. It is unknown what the actual investment return on our pension assets will be in future years and what interest rates may be at any given point in time. We cannot therefore provide any assurance of what our actual pension plan costs will be in the future, or whether we will be required under applicable law to make future material plan contributions.

The property and machinery needed to produce our products are very expensive. Therefore, we require large amounts of cash to operate our businesses. We believe that our cash on hand, along with our projected operating cash flows and our available financing resources, is adequate to support our anticipated operating and capital needs. Our ability to generate sufficient cash flow depends on future performance, which will be subject to general economic conditions, industry cycles and financial, business and other factors affecting our operations, many of which are beyond our control. If we are unable to generate sufficient cash to operate our business, we may be required, among other things, to reduce or delay planned capital or operating expenditures.

Our earnings are affected by the application of accounting standards and our critical accounting policies, which involve subjective judgments and estimates by our management. Our estimates and assumptions could be wrong

The accounting standards we use in preparing our financial statements are often complex and require that we make significant estimates and assumptions in interpreting and applying those standards. These estimates and assumptions involve matters that are inherently uncertain and require our subjective and complex judgments. If we used different estimates and assumptions or used different ways to determine these estimates, our financial results could differ.

The accounting standards we apply in preparing our financial statements are reviewed by regulatory bodies and are periodically changed. New or revised accounting standards could, either positively or negatively, affect results reported for periods after adoption of the standards as compared to the prior periods, or require retrospective application changing results reported for prior periods. We urge you to read about our accounting policies in Note A: Accounting Policies of our Consolidated financial statements included under Item 8, “Financial Statements and Supplementary Data,” of this Form 10-K.

Reports from the Public Company Accounting Oversight Board’s (PCAOB) inspections of public accounting firms continue to outline findings and recommendations which could require these firms to perform additional work as part of their financial statement audits. Our costs to respond to these additional requirements may increase.

Impairment charges could have a material adverse effect on the Company’s financial results

Goodwill and other acquired intangible assets expected to contribute indefinitely to our cash flows are not amortized, but must be evaluated for impairment by management at least annually. If the carrying value exceeds the implied fair value of goodwill, the goodwill is considered impaired and is reduced to fair value via a non-cash charge to earnings. If the carrying value of an indefinite-lived intangible asset is greater than its fair value, the intangible asset is considered impaired and is reduced to fair value via a non-cash charge to earnings. Future events may occur that would adversely affect the fair value of our goodwill or other acquired intangible assets and require impairment charges. Such events may include, but are not limited to, lower than forecasted revenues, actual new construction and repair and remodel growth rates that fall below our assumptions, actions of key customers, increases in discount rates, continued economic uncertainty, higher levels of unemployment, weak consumer confidence, lower levels of discretionary consumer spending, a decrease in royalty rates and a decline in the trading price of our common stock. We continue to evaluate the impact of economic and other developments to assess whether impairment indicators are present. Accordingly, we may be required to perform impairment tests based on changes in the economic environment and other factors, and these tests could result in impairment charges in the future.

We have considered the current economic environment and its potential impact to our business. Demand for aggregates products, particularly in the infrastructure construction market, have historically been negatively affected by federal and state budget challenges and the uncertainty over future highway funding levels. Further, delays or cancellations to capital

projects in the nonresidential and residential construction markets could occur if companies and consumers are unable to obtain financing for construction projects or if consumer confidence is eroded by economic uncertainty.

A recessionary construction economy can also increase the likelihood we will not be able to collect on all of our accounts receivable with our customers. We are protected in part, however, by payment bonds posted by many of our customers or end-users as well as state lien rights. Nevertheless, we may experience a delay in payment from some of our customers during a construction downturn, which would negatively affect operating cash flows. Historically, our bad debt write-offs have not been significant to our operating results, and we believe our allowance for doubtful accounts is adequate.

The credit environment could impact our ability to borrow money in the future. Additional financing or refinancing might not be available and, if available, may not be at economically favorable terms. Further, an increase in leverage could lead to deterioration in our credit ratings. A reduction in our credit ratings, regardless of the cause, could also limit our ability to obtain additional financing and/or increase our cost of obtaining financing. There is no guarantee we will be able to access the capital markets at financially economical interest rates, which could negatively affect our business.

We may be required to obtain financing in order to fund certain strategic acquisitions, if they arise, or to refinance our outstanding debt. It is possible a large strategic acquisition would require that we issue new equity and debt securities in order to maintain our investment-grade credit rating and could result in a ratings downgrade notwithstanding our issuance of equity securities to fund the transaction. We are also exposed to risks from tightening credit markets, through the interest payable on any variable-rate debt, including the interest cost on future borrowings under our credit facilities. While management believes our credit ratings will remain at a composite investment-grade level, we cannot be assured these ratings will remain at those levels. Also, while we believe the Company will continue to have adequate credit available to meet its needs, there can be no assurance of that.

Our Magnesia Specialties business faces currency risks from its overseas activities

Our Magnesia Specialties business sells some of its products outside the United States. Therefore, the operations of the Magnesia Specialties business are affected from time to time by the fluctuating values of the currency exchange rates of the countries in which it does business in relation to the value of the U.S. Dollar. The business tries to mitigate the short-term effects of currency exchange rates by primarily denominating sales in the U.S. Dollar. This still leaves the business subject to certain risks, depending on the strength of the U.S. Dollar.

Unexpected equipment failures, catastrophic events and scheduled maintenance may lead to production curtailments or shutdowns

Our manufacturing processes are dependent upon critical pieces of equipment, such as our kilns and finishing mills. This equipment, on occasion, may be out of service as a result of planned maintenance, failures or damage during accidents. In addition to equipment failures, our facilities are also subject to the risk of catastrophic loss due to unanticipated events such as fires, explosions or violent weather conditions. We have one- to two-week scheduled outages at least once a year to refurbish our cement and dolomitic lime production facilities. In 2021, the cement and Magnesia Specialties operations incurred shutdown costs of $23.6 million and $5.5 million, respectively. Any significant interruption in production capability may require us to make significant capital expenditures to remedy problems or damage as well as cause us to lose revenue due to lost production time.

Our paving operations face challenges when our contracts have penalties for late completion. In some instances, including many of our fixed-price contracts, we guarantee project completion by a certain date. If we subsequently fail to complete the project as scheduled, we may be held responsible for costs resulting from the delay, generally in the form of contractually agreed-upon liquidated damages. Under these circumstances, the total project cost could exceed our original estimate, and we could experience a loss of profit or a loss on the project. In our paving operations, we also have fixed-price and fixed-unit-price contracts where our profits can be adversely affected by a number of factors beyond our control, which can cause our actual costs to materially exceed the costs estimated at the time of our original bid. These same issues and risks can also impact some of our contracts in our asphalt and ready mixed concrete operations. These risks are somewhat mitigated by the fact that a majority of our road paving contracts are projects that are short in duration.

Our ready mixed concrete and asphalt and paving product lines have lower profit margins and operating results can be more volatile

Our ready mixed concrete and asphalt and paving operations typically generate lower profit margins than our aggregates and cement operations due to potentially volatile input costs, highly competitive market dynamics, and lower barriers to entry. Therefore, if we expand these operations, our consolidated gross margin would likely be adversely affected. Our overall ready mixed concrete and asphalt and paving operations’ gross margin was 10.5% for 2021 and 10.9% for 2020.

Short supplies and high costs of fuel, energy and raw materials affect our businesses

Our businesses require a continued supply of diesel fuel, natural gas, coal, petroleum coke and other energy. The financial results of these businesses have historically been affected by the short supply or high costs of these fuels and energy. Changes in energy costs also affect the prices that we pay for related supplies, including explosives, conveyor belting and tires. While we can contract for some fuels and sources of energy, such as fixed-price supply contracts for coal and petroleum coke, significant increases in costs or reduced availability of these items have and may in the future reduce our financial results. Moreover, fluctuations in the supply and costs of these fuels and energy can make planning for our businesses more difficult. Because of the fluctuating trends in diesel fuel prices, we may enter into fixed-price fuel agreements from time to time for a portion of our diesel fuel to reduce our diesel fuel price risk.

Our Magnesia Specialties business has fixed-price agreements for approximately 64% of its 2022 coal, natural gas, and petroleum coke needs. The cement operations have fixed-price agreements for a portion of their 2022 coal and natural gas needs.

Cement production requires large amounts of energy, including electricity and fossil fuels. Energy costs represented approximately 23% of the 2021 direct production costs of our cement operations. Therefore, the cost of energy is one of our largest expenses. Prices for energy are subject to market forces largely beyond our control and can be quite volatile. Price increases that we are unable to pass through in the form of price increases for our products, or disruption of the uninterrupted supply of fuel and electricity, could adversely affect us. Accordingly, volatility in energy costs can adversely affect the financial results of our cement operations.

Similarly, our ready mixed concrete and asphalt and paving operations also require a continued supply of liquid asphalt and cement, which serve as key raw materials in the production of hot mix asphalt and ready mixed concrete, respectively. Some of these raw materials we produce internally, but most are purchased from third parties. These purchased raw materials are subject to potential supply constraints and significant price fluctuations, which are beyond our control. The financial results of our ready mixed concrete and asphalt and paving operations have been affected by the short supply or high costs of these raw materials. We generally see frequent volatility in the costs for these raw materials.

Cement competition is often based primarily on price, which is highly sensitive to changes in supply and demand. Prices may fluctuate significantly in response to relatively minor changes in supply and demand, general economic conditions and other market conditions, which we cannot control. When cement producers increase production capacity or more cement is imported into the market, an oversupply of cement in the market may occur if supply exceeds demand. In that case, cement prices generally decline. We cannot be assured that prices for our cement products sold will not decline in the future or that such decline will not have a material adverse effect on our cement product line.

Our Magnesia Specialties business depends in part on the steel industry and the supply of reasonably priced fuels

Our Magnesia Specialties business sells some of its products to companies in the steel industry. While we have reduced this risk over the last few years, this business is still dependent, in part, on the strength of the cyclical steel industry. The Magnesia Specialties business also requires significant amounts of natural gas, coal and petroleum coke, and financial results are negatively affected by increases in fuel prices or shortages.

We are dependent on information technology and our systems and infrastructure face certain risks, including cybersecurity risks and data leakage risks

The Company’s operations rely on the secure processing, storage and transmission of confidential, sensitive, proprietary and other types of information relating to its business operations, as well as confidential and sensitive information about its customers and employees maintained in the Company’s computer systems and networks, certain products and services and in the computer systems and networks of its third-party vendors. Cyber threats are rapidly evolving as data thieves and hackers have become increasingly sophisticated and carry out direct large-scale, complex automated attacks against a company or through vendor software supply chain compromises. In particular, the Company is increasingly relying on its IT infrastructure to support its operations as it manages the impact of COVID-19, including supporting remote-work protocols in regions impacted by the spread of COVID-19, which can increase cyber risks. The Company is not able to anticipate or prevent all such attacks and could be held liable for any resulting material security breach or data loss. In addition, it is not always possible to deter misconduct by employees or third-party vendors.

Breaches of the Company’s technology systems, or those of the Company’s vendors and customers, whether from circumvention of security systems, denial-of service attacks or other cyber-attacks, hacking, “phishing” attacks, computer viruses, ransomware or malware, employee or insider error, malfeasance, social engineering, vendor software supply chain compromises, physical breaches or other actions, have and may result in manipulation or corruption of sensitive data, material interruptions or malfunctions in the Company’s or such vendors’ and customers’ websites, applications, data processing and certain products and services, or disruption of other business operations. Furthermore, any such breaches could compromise the confidentiality and integrity of material information held by the Company (including information about the Company’s business, employees or customers), as well as sensitive personally identifiable information, the disclosure of which could lead to identity theft. Breaches of the Company’s products that rely on technology and internet connectivity can expose the Company to product and other liability risk and reputational harm. Measures that the Company takes to avoid, detect, mitigate or recover from material incidents, may be insufficient, circumvented, or may become ineffective.

The Company has invested and continues to invest in risk management and information security and data privacy measures in order to protect its systems and data, including employee training, organizational investments, incident response plans, table top exercises and technical defenses. The cost and operational consequences of implementing, maintaining and enhancing further data or system protection measures could increase significantly to overcome increasingly intense, complex and sophisticated global cyber threats. Despite the Company’s best efforts, it is not fully insulated from data breaches and system disruptions. Recent well-publicized security breaches at other companies have led to enhanced government and regulatory scrutiny of the measures taken by companies to protect against cyber-attacks, and may in the future result in heightened cybersecurity requirements, including additional regulatory expectations for oversight of vendors and service providers. 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 the Company’s systems, products and services or those of the Company’s third parties could cause the Company 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 the Company’s customers’ information or financial losses that are either not insured against or not fully covered through any insurance maintained by the Company. 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 the Company’s business, operating results and financial condition.

The California Consumer Privacy Act of 2018 (CCPA), which came into effect in January 2020, provides, among other things, a new private right of action for data breaches, requires companies that process information on California residents to make new disclosures to consumers about their data collection, use and sharing practices, and provides consumers with additional rights. The California Privacy Rights and Enforcement Act, which will become effective on January 1, 2023, amends and expands the CCPA, creating new industry requirements, consumer privacy rights and enforcement mechanisms. Similarly, to conduct certain of its operations, the Company moves data across national borders, and consequently is subject to a variety of continuously evolving and developing laws and regulations in the United States and abroad regarding privacy, data protection and data security. The scope of the laws that may be applicable to the Company is often uncertain and may be conflicting, particularly with respect to foreign laws. For example, the European Union’s General Data Protection Regulation

(GDPR), which became effective in May 2018, greatly increased the jurisdictional reach of European Union law and added a broad array of requirements for handling personal data, including the public disclosure of significant data breaches. The Company's reputation and brand and its ability to attract new customers could also be adversely impacted if the Company fails, or is perceived to have failed, to properly respond to security breaches of its or third party’s information technology systems. Such failure to properly respond could also result in similar exposure to liability.

All of these evolving compliance and operational requirements impose significant costs that are likely to increase over time. Privacy laws that may be implemented in the future will continue to require changes to certain business practices, thereby increasing costs, or may result in negative publicity, require significant management time and attention, and may subject the Company to remedies that may harm its business, including fines or demands or orders that the Company modify or cease existing business practices.

Delays or interruptions in shipping products of our businesses could affect our operations

Transportation logistics play an important role in allowing us to supply products to our customers, whether by truck, rail or water. We also rely heavily on third-party truck and rail transportation to ship coal, natural gas and other fuels to our plants. Any significant delays, disruptions or the non-availability of our transportation support system could negatively affect our operations. Transportation operations are subject to capacity constraints, high fuel costs and various hazards, including extreme weather conditions and slowdowns due to labor strikes and other work stoppages. In Texas, we compete for third-party trucking services with operations in the oil and gas fields, which can significantly constrain the availability of those services to us. If there are material changes in the availability or cost of transportation services, we may not be able to arrange alternative and timely means to transport our products or fuels at a reasonable cost, which could lead to interruptions or slowdowns in our businesses or increases in our costs.

The availability of railcars can also affect our ability to transport our products. Railcars can be used to transport many different types of products across all of our segments. If owners sell or lease railcars for use in other industries, we may not have enough railcars to transport our products.

We have long-term agreements with shipping companies to provide ships to transport our aggregates products from our Bahamas and Nova Scotia operations to various coastal ports. These contracts have varying expiration dates ranging from 2023 to 2027 and generally contain renewal options. Our inability to renew these agreements or enter into new ones with other shipping companies could affect our ability to transport our products.

Some of our products are distributed by barges along rivers in Ohio and West Virginia. We may experience, to a lesser degree, risks associated with distributing our products by barges, including significant delays, disruptions or the non-availability of our barge transportation system that could negatively affect our operations, water levels that could affect our ability to transport our products by barge, and barges that may not be available in quantities that we might need from time to time to support our operations.

Our articles of incorporation and bylaws and North Carolina law may inhibit a change in control that you may favor

Our restated articles of incorporation and restated bylaws and North Carolina law contain provisions that may delay, deter or inhibit a future acquisition of us not approved by our Board of Directors. This could occur even if our shareholders are offered an attractive value for their shares or if many or even a majority of our shareholders believe the takeover is in their best interest. These provisions are intended to encourage any person interested in acquiring us to negotiate with and obtain the approval of our Board of Directors in connection with the transaction. Provisions that could delay, deter, or inhibit a future acquisition include the following:

Additionally, the occurrence of certain change-of-control events could result in an event of default under certain of our existing or future debt instruments.

There are no unresolved written comments that were received from the staff of the SEC one hundred and eighty (180) days or more before the end of our fiscal year relating to our periodic or current reports under the Exchange Act.

As of December 31, 2021, the Company processed or shipped aggregates from 267 quarries and underground mines in 28 states, Canada and The Bahamas. No individual quarry or mine is material to the Company’s business or financial condition. The Company’s aggregates reserves, on average, represent approximately 78 years at current production levels. However, certain locations may be subject to more limited reserves and may not be able to expand. As of December 31, 2021, the Company also operated 84 aggregates distribution yards. In total, aggregates locations, including quarries, underground mines and distribution terminals, are in 28 states and of which 161 are located on land owned by the Company free of major encumbrances, 65 are on land owned in part and leased in part, and 111 are on leased land, and 14 are on facilities neither owned nor leased, where raw materials are removed under an agreement. In addition, as of December 31, 2021, the Company processed and shipped ready mixed concrete and asphalt products from 185 properties in seven states, of which 137 are located on land owned by the Company free of major encumbrances, 4 are on land owned in part and leased in part, 4 are at facilities neither owned nor leased and 40 are on leased land.

An overview of the Company’s quarrying and mining operations is included in “Business—Building Materials Business” and “Business—Environmental and Governmental Regulations,” included in Item 1 “Business” of this Form 10-K, which is incorporated herein by reference. The following map presents the locations of these quarries and underground mines, including the limestone reserves adjacent to the two California cement plants that are classified as held for sale:

The rules of the Securities and Exchange Commission provide for the reporting by categorization of the Company’s resources and reserves for the production of aggregates. Aggregates resources represent concentrations or occurrences of material of economic interest in or on the Earth's crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction. The level of aggregates resources is a reasonable estimate, taking into account relevant factors such

as cut-off grade, likely mining dimensions, location or continuity, that, with the assumed and justifiable technical and economic conditions, is likely to, in whole or in part, become economically extractable. Measured aggregates resources is that part of aggregates resources for which quantity and grade are estimated on the basis of conclusive geological evidence and sampling in sufficient detail to support detailed extraction planning and final evaluation of the economic viability of the deposit to be quarried or mined. Indicated aggregates resources is that part of aggregates resources for which quantity and grade are estimated on the basis of adequate geological evidence and sampling in sufficient detail to support mine planning and evaluation of the economic viability of the deposit of the material to be quarried or mined, which is at a lower level of confidence than measured aggregates resources. Inferred aggregates resources is that part of aggregates resources for which quantity and grade are estimated on the basis of limited geological evidence and sampling, where the level of uncertainty is too high to apply relevant technical and economic factors likely to influence the prospects of economic extraction in a manner useful for evaluation of economic viability of a deposit. The Company has no inferred resources as of December 31, 2021. Aggregates reserves is an estimate of tonnage and grade of indicated or measured aggregates resources that in the opinion of qualified personnel can be economically extracted and includes diluting materials and allowances for mining losses.

The Company uses various exploratory drilling methods, depending on the type of aggregates, to estimate aggregates reserves that are economically mineable. The extent of drilling varies depending on the complexity of the mineral deposit and whether the location is a potential new site (greensite), an existing location, or a potential acquisition. More extensive drilling is performed for potential greensites and acquisitions, and, in rare cases, the Company may rely on existing geological data or results of prior drilling by reputable third parties. Subsequent to drilling, selected drill samples are tested by an accredited laboratory for soundness, abrasion resistance, and other physical properties relevant to the aggregates industry. If the reserves meet the Company’s standards and are economically mineable, they are either leased or purchased. Once in operation, routine quality control testing is performed to ensure the quality grade of aggregate continues to meet specifications.

The Company estimates proven and probable aggregates reserves based on the results of drilling and testing completed by or under the supervision of qualified persons. Proven reserves are the portion of mineral deposits for which quantity and quality are estimated on the basis of conclusive geologic evidence and sampling using closely spaced drill data. Proven reserves have a certainty of 85% to 90%. Probable reserves are estimated utilizing fewer drill holes but geologic evidence and sampling is considered adequate for determining quality and quantity. The degree of certainty for probable reserves is 70% to 75%. In addition to reserves, the Company estimates resources for mineral deposits demonstrating reasonable prospects of being economically mineable in the future.

In determining the amount of reserves, evaluations are completed by or under the supervision of qualified Company personnel using industry best practices and internal controls defined by the Company. Reserve estimates represent net tons after consideration of applicable losses incurred during mining and plant processing. The Company’s policy is to exclude from reserve estimates the portions of a mineral deposit that are not available due to property boundaries, set-backs, and plant configurations, as deemed appropriate when estimating reserves. The Company uses the same methods of analysis to evaluate and estimate the amount of its aggregates reserves used in the cement manufacturing process for its cement operations as it does for its aggregates operations. For additional information on the Company’s assessment of reserves, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Other Financial Information - Critical Accounting Policies and Estimates - Property, Plant and Equipment” included under Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of this Form 10-K. While the mineral reserve and resource classification categories (proven and probable) identify relative confidence of reserve estimates, there is inherent risk associated with such estimates. The Company bases estimates on the information known at the time of determination and regularly reevaluates reserves whenever new information indicates a material change in reserves at one of the Company’s sites.

In general, quarry and mining facilities must comply with air quality, water quality, and noise regulations, zoning and special-use permitting requirements, applicable mining regulations, and federal health and safety requirements. As new quarry and mining sites are located and acquired, the Company works closely with local authorities during the zoning and permitting processes to design new quarries and mines in such a way as to minimize disturbances. The Company frequently acquires large tracts of land so that quarry, mine, and production facilities can be situated substantial distances from surrounding property owners.

Set forth in the tables below are the Company’s estimates as of December 31, 2021 of proven and probable reserves of aggregates (crushed stone and sand and gravel) and measured, indicated and inferred aggregates resources (exclusive of proven and probable reserves), shown on a geographic division basis. The East Division includes Alabama, Florida, Georgia,

Maryland, North Carolina, Pennsylvania, South Carolina, Tennessee, Virginia, Canada and The Bahamas. The Central Division includes Indiana, Iowa, Kansas, Kentucky, Minnesota, Missouri, Nebraska, Ohio and West Virginia. The Southwest Division includes Arkansas, Louisiana, Oklahoma and Texas. The West Division includes Arizona, California, Colorado, Utah, Washington and Wyoming. The amount shown reflects a reasonable and justifiable price for salable product as of December 31, 2021 with respect to each division. The tables also present the Company’s total annual production for the last three years, shown on a product line-by-product line basis. The Company’s estimate of aggregates reserves and aggregates resources shown in the tables below include reserves and resources that would be devoted for use in the Company’s cement product line and Magnesia Specialties business. The amounts included in the tables differ from the carrying value of the reserves on the consolidated balance sheet, as the tables reflect the current market value of the extractable reserves using a reasonable and justifiable price, while the balance sheet reflects the historical cost of acquiring the reserves.

Summary Mineral Resources At End of Fiscal Year Ended December 31, 2021 Based on Price¹
	Measured Mineral Resources			Indicated Mineral Resources			Measured + Indicated Mineral Resources			Inferred Mineral Resources
	Amount ($ in millions)		Grades/Qualities	Amount ($ in millions)		Grades/Qualities	Amount ($ in millions)		Grades/Qualities	Amount ($ in millions)		Grades/Qualities
Crushed Stone
East Division	$	2,258.4	Crushed Stone	$	478.7	Crushed Stone	$	2,737.1	Crushed Stone	$	—	Crushed Stone
Central Division		—	Crushed Stone		320.0	Crushed Stone		320.0	Crushed Stone		—	Crushed Stone
Southwest Division		—	Crushed Stone		—	Crushed Stone		—	Crushed Stone		—	Crushed Stone
West Division		982.5	Crushed Stone		2,693.7	Crushed Stone		3,676.2	Crushed Stone		—	Crushed Stone
Total crushed stone	$	3,240.9		$	3,492.4		$	6,733.3		$	—
Sand and Gravel
East Division	$	—	Sand & Gravel	$	—	Sand & Gravel	$	—	Sand & Gravel	$	—	Sand & Gravel
Central Division		11.8	Sand & Gravel		380.7	Sand & Gravel		392.5	Sand & Gravel		—	Sand & Gravel
Southwest Division		—	Sand & Gravel		—	Sand & Gravel		—	Sand & Gravel		—	Sand & Gravel
West Division		809.0	Sand & Gravel		1,935.7	Sand & Gravel		2,744.7	Sand & Gravel		—	Sand & Gravel
Total sand and gravel	$	820.8		$	2,316.4		$	3,137.2		$	—

Summary Mineral Reserves At End of Fiscal Year Ended December 31, 2021 Based on Price^1,2
	Proven Mineral Reserves			Probable Mineral Reserves			Total Mineral Reserves
	Amount ($ in millions)		Grades/Qualities	Amount ($ in millions)		Grades/Qualities	Amount ($ in millions)		Grades/Qualities
Crushed Stone
East Division	$	73,072.4	Crushed Stone	$	57,544.9	Crushed Stone	$	130,617.3	Crushed Stone
Central Division		21,263.7	Crushed Stone		20,003.5	Crushed Stone		41,267.2	Crushed Stone
Southwest Division		24,029.3	Crushed Stone		18,029.6	Crushed Stone		42,058.9	Crushed Stone
West Division		4,295.8	Crushed Stone		6,915.5	Crushed Stone		11,211.3	Crushed Stone
Total crushed stone	$	122,661.2		$	102,493.5		$	225,154.7
Sand and Gravel
East Division	$	697.7	Sand and Gravel	$	1,180.8	Sand and Gravel	$	1,878.5	Sand and Gravel
Central Division		2,539.8	Sand and Gravel		755.5	Sand and Gravel		3,295.3	Sand and Gravel
Southwest Division		752.8	Sand and Gravel		1,143.7	Sand and Gravel		1,896.5	Sand and Gravel
West Division		2,421.4	Sand and Gravel		600.8	Sand and Gravel		3,022.2	Sand and Gravel
Total sand and gravel	$	6,411.7		$	3,680.8		$	10,092.5

	Total Annual Production (tons in millions) For year ended December 31
	2021		2020		2019
Aggregates		199.6		191.2		194.1
Cement limestone		5.4		5.1		5.4
Magnesia Specialties limestone		3.0		2.8		3.4
Total		208.0		199.1		202.9

As of December 31, 2021, the Company, through its subsidiaries, processed or shipped cement from 20 properties in four states, of which 9 are located on land owned by the Company free of major encumbrances, 1 is on land that is owned in part and leased in part and 10 is on leased land. The Company’s cement operations have production facilities located at four sites: Midlothian, Texas, south of Dallas/Fort Worth; Hunter, Texas, north of San Antonio; Redding, California; and Tehachapi, California. Redding and Tehachapi were acquired on October 1, 2021 in connection with the Lehigh Hanson West Region acquisition and are classified as held for sale as of December 31, 2021. The following table summarizes certain information about the Company’s cement manufacturing facilities at December 31, 2021:

Plant	Rated Annual Productive Capacity-Tons of Clinker (in millions)		Manufacturing Process	Service Date	Internally Estimated Reserves—Years
Midlothian, TX		2.4	Dry	2001		60
Hunter, TX		2.1	Dry	2013, 1981		140
Tehachapi, CA		0.9	Dry	2018, 1990, 1908		30
Redding, CA		0.6	Dry	1980, 1961		12
Total		6.0

Reserves identified with the facilities shown above are contained on approximately 3,020 acres of land owned by the Company. As of December 31, 2021, the Company estimated its total proven and probable limestone reserves on such land to be approximately 733 million tons, which are included in the Summary of Mineral Reserves table.

The Company’s cement manufacturing facilities include kilns, crushers, pre-heaters/calciners, coolers, finish mills and other equipment used to process limestone and other raw materials into cement, as well as equipment used to extract and transport the limestone from the adjacent quarries. These cement manufacturing facilities are served by rail and truck.

As of December 31, 2021, the Company, through its subsidiaries, also operated, directly or through third parties, 16 cement distribution terminals.

The Magnesia Specialties business currently operates major manufacturing facilities in Manistee, Michigan, and Woodville, Ohio. Both of these facilities are owned.

The Company’s principal corporate office, which it leases, is located in Raleigh, North Carolina. The Company owns and leases various administrative offices for its five operating business segments.

The Company’s principal properties, which are of varying ages and are of different construction types, are believed to be generally in good condition, are generally well maintained, and are generally suitable and adequate for the purposes for which they are used.

During 2021, the principal properties of the aggregates operations were believed to be utilized at average productive capacities of approximately 75% and were capable of supporting a higher level of market demand. The Company adjusts its production schedules to meet volume demand for its products.

During 2021, the Texas cement plants operated on average at 76% utilization. The Portland Cement Association (PCA) has projected that Texas cement consumption will increase 3.3% in 2022 from 2021. The cement business’ leadership, in collaboration with the aggregates and ready mixed concrete teams, have developed strategic plans regarding interplant efficiencies, as well as tactical plans addressing plant utilization and efficiency.

The Company’s Magnesia Specialties business expects future organic earnings growth to result from increased pricing, rationalization of the current assets and portfolio and/or further cost reductions. In the current operating environment, where steel utilization is between 80% and 85%, any unplanned change in costs or customers introduces volatility to the earnings of the Magnesia Specialties segment. The dolomitic lime business of the Magnesia Specialties segment operated at 83% utilization in 2021

From time to time claims of various types are asserted against the Company arising out of its operations in the normal course of business, including claims relating to land use and permits, safety, health, and environmental matters (such as noise abatement, blasting, vibrations, air emissions, and water discharges). Such matters are subject to many uncertainties, and it is not possible to determine the probable outcome of, or the amount of liability, if any, from, these matters. In the opinion of management of the Company (which opinion is based in part upon consideration of the opinion of counsel), based upon currently-available facts, it is remote that the ultimate outcome of any litigation and other proceedings will have a material adverse effect on the overall results of the Company's operations, its cash flows, or its financial condition. However, management cannot assure that an adverse outcome in any of such litigation would not have a material adverse effect on the Company or its operating segments.

The Company was not required to pay any penalties in 2021 for failure to disclose certain “reportable transactions” under Section 6707A of the Internal Revenue Code.

The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K (17 CFR 229.104) is included in Exhibit 95 to this Form 10-K.

The following sets forth certain information regarding the executive officers of Martin Marietta as of February 22, 2022:

Name	Age	Present Position	Year Assumed Present Position	Other Positions and Other Business Experience Within the Last Five Years
C. Howard Nye	59	Chairman of the Board;	2014
		Chief Executive Officer;	2010
		President;	2006
		President of Aggregates	2010
		Business;
		Chairman of Magnesia	2007
		Specialties Business
James A. J. Nickolas	51	Senior Vice President, Chief Financial Officer	2017	Principal Accounting Officer (March- May 2019); Head, Corporate Development and Caterpillar Ventures, Caterpillar Inc. (January-July 2017)
Roselyn R. Bar	63	Executive Vice President;	2015
		General Counsel;	2001
		Corporate Secretary	1997
Robert J. Cardin	58	Senior Vice President; Controller, and Chief Accounting Officer	2019	Vice President and Corporate Controller (March-May 2019); Chief Accounting Officer, SWM International (2013-2019)
Craig M. LaTorre	54	Senior Vice President, Chief Human Resource Officer	2019	Vice President, Human Resources (July 2018-March 2019); Senior Vice President and Chief Human Resources Officer (2013-2018), Andeavor (formerly known as Tesoro Corporation)
John P. Mohr	57	Senior Vice President,	2017	Vice President, Information Services (2015-2017)
		Chief Information Officer	2015
Michael J. Petro	38	Senior Vice President, Strategy & Development	2021	Vice President, Strategy and Development (2018-2021); Director, Strategy and Development (2015-2018)

Part II ♦ Item 5 – Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

ITEM 5 – MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

The Company’s common stock, $0.01 par value, is traded on the New York Stock Exchange (NYSE) (Symbol: MLM). There were 761 holders of record of the Company’s common stock as of February 15, 2022.

The following graph and accompanying table compare the five-year cumulative total return from December 31, 2016 to December 31, 2021 for (a) the Company’s common stock, (b) the Standard & Poor’s 500 Composite Stock Index, and (c) the Standard & Poor’s 500 Materials Index.

Part II ♦ Item 5 – Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs⁽¹⁾		Maximum Number of Shares that May Yet be Purchased Under the Plans or Programs
October 1, 2021 — October 31, 2021		—	$	—		—		13,520,952
November 1, 2021 — November 30, 2021		—	$	—		—		13,520,952
December 1, 2021 — December 31, 2021		—	$	—		—		13,520,952
Total		—	$	—		—		13,520,952

Part II ♦ Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations

ITEM 7 – MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Martin Marietta Materials, Inc. (the Company or Martin Marietta) is a natural resource-based building materials company, with 2021 total revenues of $5.41 billion and net earnings from continuing operations attributable to Martin Marietta of $702.0 million. These results were achieved by supplying aggregates (crushed stone, sand and gravel) through its network of approximately 350 quarries, mines and distribution yards in 28 states, Canada and The Bahamas. Martin Marietta also provides cement and downstream products, namely ready mixed concrete, asphalt and paving services, in certain markets where the Company has a leading aggregates position. Specifically, the Company has two cement plants in Texas and ready mixed concrete and asphalt operations in Arizona, California, Colorado, Minnesota, Texas and Wyoming. Paving services are in California and Colorado. The Company also has two cement plants, cement distribution terminals and ready mixed concrete operations in California that are classified as assets held for sale and reported as discontinued operations as of December 31, 2021. The Company’s heavy-side building materials are used in infrastructure, nonresidential and residential construction projects. Aggregates are also used in agricultural, utility and environmental applications and as railroad ballast. The aggregates, cement, ready mixed concrete, asphalt and paving product lines are reported collectively as the “Building Materials” business.

As more fully discussed in the Consolidated Strategic Objectives section, geography is critically important for the Building Materials business. The Company conducts its Building Materials business through two reportable segments, organized by geography: East Group and West Group. The East Group consists of the East and Central divisions. The West Group is comprised of the Southwest and West divisions.

The East Group provides aggregates and asphalt products. The West Group provides aggregates, cement and downstream products and services. Further, the following five states accounted for 68% of the Building Materials business 2021 total revenues: Texas, Colorado, North Carolina, Georgia and Minnesota.

Part II ♦ Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations

The Company operates a Magnesia Specialties business with production facilities in Michigan and Ohio. The Magnesia Specialties business produces magnesia-based chemicals products used in industrial, agricultural and environmental applications. It also produces dolomitic lime sold primarily to customers for steel production and soil stabilization. Magnesia Specialties’ products are shipped to customers worldwide.

The Company’s strategic planning process, or Strategic Operating Analysis and Review (SOAR), provides the framework for execution of Martin Marietta’s long-term strategic plan. Guided by this framework and considering the cyclicality of the Building Materials business, the Company determines capital allocation priorities to maximize long-term shareholder value creation. The Company’s strategy includes ongoing evaluation of aggregates-led opportunities of scale in new domestic markets (i.e., platform acquisitions), expansion through acquisitions that complement existing operations (i.e., bolt-on acquisitions) and divestitures of assets that are not consistent with stated strategic goals. To that effect, the Company invested $3.1 billion in acquisitions during 2021, the largest of which was completed on October 1, 2021, providing platform positions for future growth in California and Arizona. The Company finances such opportunities with the goal of preserving its financial flexibility by having a leverage ratio (consolidated debt-to-consolidated earnings before interest, taxes, depreciation and amortization, or EBITDA) within a range of 2.0 times to 2.5 times within a reasonable period of time following the completion of a debt-financed transaction.

The Company, by purposeful design, will continue to be an aggregates-led business (aggregates product gross profit represented 67% of 2021 total consolidated product and services gross profit) that focuses on markets with strong, underlying growth fundamentals where it can sustain or achieve a leading market position. As part of its long-term strategic plan, the Company may also pursue strategic cement and targeted downstream opportunities. For Martin Marietta, strategic cement and targeted downstream operations are located in vertically-integrated markets where the Company has, or envisions, a clear path toward a leading aggregates position.

Generally, the Company’s building materials products are both sourced and sold locally. As a result, geography is critically important when assessing market attractiveness and growth opportunities. Attractive geographies generally exhibit (a) population growth and/or population density, both of which are drivers of heavy-side building materials consumption; (b) business and employment diversity, drivers of greater economic stability; and (c) a superior state financial position, a driver of public infrastructure investment.

In order to assess population growth and density, the Company focuses on the megaregions of the United States. Megaregions are large networks of metropolitan population centers covering thousands of square miles. According to America 2050, a planning and policy program of the Regional Plan Association, a majority of the nation’s population and economic growth through 2050 will occur in 11 megaregions. The Company has a meaningful presence in ten of the megaregions. As evidence of the successful execution of SOAR, the Company’s leading positions in the Texas Triangle, Colorado’s Front Range, northern and southern California and Arizona’s Sun Corridor megaregions, its growth platform in the southern portion of the Northeast megaregion and its enhanced position in the Piedmont Atlantic megaregion, primarily in the Atlanta area, are the results of acquisitions since 2011. The Company has a legacy presence in the southeastern portion of the Great Lakes megaregion, encompassing operations in Indiana and Ohio. The megaregions and the Company’s key states are more fully discussed in the Building Materials Business’ Key Considerations section.

Part II ♦ Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations

North Carolina		56-1848578
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)
4123 Parklake Avenue, Raleigh, North Carolina		27612
(Address of principal executive offices)		(Zip Code)

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock (par value $.01 per share)		MLM		New York Stock Exchange

Class		Outstanding at February 15, 2022
Common Stock, $.01 par value per share		62,394,593 shares

Document		Parts Into Which Incorporated
Proxy Statement for the Annual Meeting of Shareholders to be held May 12, 2022 (Proxy Statement)		Part III

PART I		1

ITEM 1.	BUSINESS	1

ITEM 1A.	RISK FACTORS	12

ITEM 1B.	UNRESOLVED STAFF COMMENTS	25

ITEM 2.	PROPERTIES	25

ITEM 3.	LEGAL PROCEEDINGS	30

ITEM 4.	MINE SAFETY DISCLOSURES	30

INFORMATION ABOUT OUR EXECUTIVE OFFICERS		31

PART II		32

ITEM 5.	MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES	32

ITEM 6.	RESERVED	33

ITEM 7.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	34

ITEM 7A.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	69

ITEM 8.	FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA	70

ITEM 9.	CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE	115

ITEM 9A.	CONTROLS AND PROCEDURES	115

ITEM 9B.	OTHER INFORMATION	116

ITEM 9C.	DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS	116


PART III		117

ITEM 10.	DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE	117

ITEM 11.	EXECUTIVE COMPENSATION	117

ITEM 12.	SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS	117

ITEM 13.	CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE	117

ITEM 14.	PRINCIPAL ACCOUNTANT FEES AND SERVICES	117

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

PART IV		118

ITEM 15.	EXHIBITS AND FINANCIAL STATEMENT SCHEDULES	118

ITEM 16.	FORM 10-K SUMMARY	124

SIGNATURES		125