Martin Marietta to Acquire Lhoist North America for $13.5 Billion
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Jun 29 2026
0mins
Source: seekingalpha
- Large Transaction Size: Martin Marietta has agreed to acquire Lhoist North America in a cash-and-stock deal valued at approximately $13.5 billion, significantly expanding its footprint in lime and industrial minerals, with the transaction expected to close in the second half of 2026 pending regulatory approvals.
- Market Leadership: This acquisition will position Martin Marietta as the largest producer of lime products in the U.S., with Lhoist North America holding over 2 billion tons of limestone reserves, estimated to support more than 200 years of production, catering to the growing demand for infrastructure and industrial applications.
- Financial Impact: Lhoist North America generated about $1.8 billion in gross sales and $786 million in adjusted EBITDA in 2025, and Martin Marietta anticipates achieving approximately $85 million in annual cost synergies from the acquisition, enhancing profitability and margins.
- Strategic Significance: The CEO of Martin Marietta described the deal as a key step in the company's long-term strategy to expand its higher-margin specialties business, addressing the sustained demand driven by U.S. infrastructure investment and industrial expansion.
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Analyst Views on MLM
Wall Street analysts forecast MLM stock price to rise
11 Analyst Rating
9 Buy
2 Hold
0 Sell
Strong Buy
Current: 605.300
Low
605.00
Averages
693.20
High
758.00
Current: 605.300
Low
605.00
Averages
693.20
High
758.00
About MLM
Martin Marietta Materials, Inc. is a supplier of aggregates and other building materials. The Company provides magnesia and dolomitic lime products used globally in environmental, industrial, agricultural, and other specialty applications. It supplies aggregates (crushed stone, sand and gravel) through its network of approximately 400 quarries, mines, and distribution yards in 28 states, Canada and The Bahamas. It also provides other building materials, namely, cement, ready mixed concrete, asphalt, and paving services. Its heavy-side building materials are used in infrastructure, nonresidential and residential construction projects. Its Aggregates are also used in agricultural, utility, and environmental applications and as railroad ballast. The Company operates through two segments, which include East Group and West Group. The East Group comprises the East and Southwest divisions. The West Group comprises the Central and West divisions.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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