Martin Marietta Materials Inc. (NYSE: MLM) announced Thursday the completion of its acquisition of Lhoist North America Inc., a subsidiary of the Lhoist Group.
The deal expands Martin Marietta’s limestone reserves by more than 2 billion tons, reinforcing its position as a supplier of aggregates, lime, and limestone products across 29 U.S. states, Canada, and The Bahamas. Lhoist North America produces high calcium lime, dolomitic lime, and industrial mineral products, serving steel manufacturing, infrastructure, heavy nonresidential construction, and environmental solutions sectors.
Ward Nye, Chair, President and CEO of Martin Marietta, said the transaction advances the company’s SOAR 2030 strategic objectives by strengthening its Specialties platform and enhancing the quality, scale, and resilience of its business.
The financial terms of the acquisition were not disclosed. Martin Marietta plans to provide updated full-year 2026 revenue and Adjusted EBITDA guidance when it releases its third-quarter financial results.
