MARTIN MARIETTA MATERIALS INC (MLM)

Martin Marietta Materials, Inc. is a North Carolina-based natural resource building materials company formed in 1993 as successor to Lockheed Martin's materials group, publicly traded since a 1994 IPO. The Company operates through two primary business lines: Building Materials, reported across East Group and West Group segments organized by geography, and Magnesia Specialties, reported as a separate segment. The Building Materials business supplies aggregates (crushed stone, sand and gravel) through roughly 390 quarries, mines and distribution yards across 28 states, Canada and The Bahamas, with aggregates generating 76% of total reportable segment gross profit in 2024; it also includes cement production at a single Midlothian, Texas facility with 2.4 million tons annual clinker capacity, 72 ready mixed concrete plants in Arizona and Texas, 38 asphalt plants across Arizona, California, Colorado and Minnesota, and paving services in California and Colorado.

These products serve infrastructure, nonresidential and residential construction, with 37% of 2024 aggregates shipments tied to public infrastructure projects; the ten largest revenue states, including Texas, North Carolina and Colorado, generated 81% of 2024 Building Materials revenue. The Magnesia Specialties segment produces magnesia-based chemical products (59% of 2024 segment revenue) for industrial, agricultural and environmental uses from its Manistee, Michigan plant, and dolomitic lime (40% of revenue) primarily for the steel industry from its Woodville, Ohio facility, with products shipped domestically and internationally. The Company has completed over 100 acquisitions since its IPO; notable 2024 transactions include the January acquisition of Albert Frei & Sons in Colorado, the February divestiture of its South Texas cement and related ready mixed concrete operations to CRH Americas Materials for $2.1 billion (yielding a $1.3 billion pretax gain), the April acquisition of 20 aggregates operations across five southeastern states from Blue Water Industries for $2.05 billion, and additional bolt-on aggregates acquisitions in South Florida, Southern California and West Texas during the second half of the year.

Aggregates reserves average more than 85 years at 2024 production levels, and the Company operates 14 active underground aggregates mines, the most of any U.S. operator, supported by a distribution network of 78 yards utilizing trucks, rail and waterborne vessels. Competitors among top U.S. aggregates producers include CEMEX, Heidelberg Materials, Knife River, Summit Materials and Vulcan Materials. The Company's operations are subject to extensive environmental, mining, health and safety regulation, with direct environmental compliance costs of approximately $58 million in 2024, and it maintains formal governance oversight of sustainability and climate-related risks, including transition risks tied to GHG regulation and physical risks from severe weather affecting its predominantly outdoor operations.