C. Howard Nye
Chairman of the Board, President and Chief Executive Officer at Martin Marietta Materials
Thank you, Jacklyn. Good morning, and thank you all for joining today's teleconference. Over the years, the disciplined execution of our proven strategic operating analysis and review or store plan has significantly transformed our company by providing Martin Marietta with a coast-to-coast footprint with the majority of our products and services going to areas exhibiting the highest-growth potential by demonstrating our ability to manage through uncontrollable circumstances.
By adhering to our value over volume approach to meet customers' needs without discounting the value of our own assets and generating a higher return on those assets and by showing the resiliency of our business model no matter the macroeconomic backdrop. As a result, our business is superbly positioned for near, medium and long-term success. 2024 was no exception to those themes as we once again delivered record aggregates financial performance and successfully completed nearly $6 billion of portfolio-enhancing transactions.
Operationally, our team successfully managed many exogenous factors, including persistent inclement weather, tighter than expected monetary policy and related modest private construction slowdown. The team's steadfast commitment to managing what they could control, namely commercial excellence, cost management and portfolio optimization enabled the 4th-quarter delivery of record profits, margin expansion and record cash-flow from operations.
Before discussing our full-year results and 2025 outlook, I'll highlight a few notable takeaways from 2024's 4th-quarter. First, with. With the weather better cooperating in 4th-quarter, earnings growth and margin expansion resumed, evidenced by a record 4th-quarter consolidated gross profit of $489 million, consolidated adjusted EBITDA of $545 million, reflecting an increase of 8% and consolidated adjusted EBITDA margin of 33%, an improvement of 210 basis-points.
Pricing gains more than offset the impact of inventory management efforts, driving 4th-quarter record aggregates gross profit per ton of $7.92, an increase of 12% and aggregates gross margin of 33%, an improvement of 120 basis-points. In addition to our impressive financial results, we successfully completed three aggregates bolt-on acquisitions in Southwest Florida, Southern California and West Texas, all of which are attractive identified geographies.
Our full-year results were notable given the year's extreme weather and a difficult macro-economy. Despite these headwinds, we established new aggregates and magnesia Specialties records, specifically, aggregates revenues and gross profit both increased 5% to $4.5 billion and $1.4 billion, respectively. Aggregates gross profit per ton increased over 9% to $7.58.
Magnesia Specialties revenues increased 2% to $320 million and Magnesia Specialties gross profit increased 10% to $107 million. Martin Mariotta's safety and enterprise excellence culture have long underpinned our financial results. I'm pleased to report we achieved our best full-year safety incident rates in our company's history, inclusive of our newly-acquired businesses. Notably, this marks our eighth consecutive year of a world-class lost-time instant rate and fourth consecutive year of world-class total injury incident rate.
2024 surpassed 2021 as our most active M&A year ever with nearly $4 billion of aggregates-led acquisitions and over $2 billion of non-core asset divestitures. We selectively pruned cyclical and non-strategic cement and concrete operations and redeployed the proceeds into pure aggregate assets in attractive markets, adding nearly 1 billion tons of aggregate reserves to our footprint. These proactive portfolio actions created a more durable business, increased the gross profit contribution from our core aggregates product-line and enhanced our margin profile, all while maintaining a strong balance sheet for continued acquisitive growth.
Looking ahead, we expect the Reshape portfolio, together with our 4th-quarter results will provide a solid foundation for profitable growth in 2025 and beyond. Specifically, our full-year 2025 aggregate shipment guidance of 4% Growth at the midpoint assumes that strong infrastructure and data center demand, a full-year of 2024 acquisition contributions and normalized weather patterns will all more than offset the slowdown in private construction, which is primarily interest-rate driven. Our full-year 2025 pricing guidance of 6.5% growth at the midpoint, while lower than the last three years of double-digit growth remains notably higher than the long-term industry average of 3% to 4%. These revenue drivers, combined with moderating cost inflation, contributions from our cement and downstream businesses, Magnesia Specialties and the full-year of contributions from our 2024 acquisitions underpin our 2025 full-year adjusted EBITDA guidance of $2.25 billion at the midpoint, a 9% improvement compared with prior year. Moving now to-end markets, we'll start with infrastructure, our most aggregates-intensive and often countercyclical end-market. Both building and maintaining our nation's heavy infrastructure remains a bipartisan national strategic priority. Three years into the five-year Infrastructure and Investment and Jobs Act or IIJA, nearly 70% of highway and bridge funds remain to be invested, indicating robust multi-year tailwinds. Importantly, according to the American Road and Transportation Builders Association or, public highway, payment and street construction is expected to continue to grow, reaching $128.4 billion in 2025 compared with $119.1 billion in 2024, an 8% increase. Notably, based on recent state and government contract awards, ARPA's 2025 transportation construction market outlook shows Texas, Florida, North Carolina and South Carolina, Keymart and Marietta States are among the largest markets expected to show growth. Thank you. Moving now to non-residential construction. Artificial intelligence or AI continues to drive unprecedented demand for digital and energy infrastructure as evidenced by recent announcements from Microsoft and the new administration in Washington. Microsoft expects to invest $80 billion in fiscal 2025 on the construction of data centers that can handle AI workloads with over half of that spend in the United States. Moreover, the new administration recently-announced Stargate, which aims to simplify permitting and significantly boost data center construction in the US through a massive investment of up to $500 billion. The build-out is already underway with the data center in, Texas that Martin Marriott is supplying from its December acquisition of Janes Gravel Company. Moreover, Dodge Construction Networks warehouse where footage starts for the 12 months ended November 2024 inflected positively for the first time since December 2022 and Martin Marietta was recently awarded the material supply for two large Amazon warehouse projects in North Texas and Fort Myers, Florida, respectively. Shifting to residential activity, affordability and availability remain key issues impacting single-family demand. Neither is expected to resolve in the near-term given the higher for longer interest-rate environment. Relative to the availability issue alone, realtor.com recently estimated that the US housing market is underserved by approximately 7 million homes. That said, when single-family residential construction inevitably rebounds, Martin Marietta's leading positions in key Sunbelt MSAs provide attractive opportunities to capitalize on structurally underbuilt markets with pent-up demand. In summary, record state and federal investments, reshoring, the artificial intelligence infrastructure build-out and the long-awaited single-family housing recovery should provide multiyear shipment stability and provide a healthy pricing environment for years to come. I'll now turn the call over to Jim to discuss our full-year financial results and liquidity. Jim?