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High materiality9/10

Martin Marietta to Acquire Lhoist North America for $13.5B, Accretive Scale Expansion

Jun 29, 2026, 7:11 AM EDT2 sourcesAI-analyzed
Why it may matterVerify against the original reporting

Strategic scale expansion with long-lived reserves and synergies supports higher through-cycle earnings; accretive in year one for margins; however near-term dilution and leverage near 3.7x at close introduce some risk that could temper immediate upside.

AI summary

What happened, with direct paths to the underlying reporting

Martin Marietta announced a definitive agreement to buy Lhoist North America for $13.5 billion in cash and MLM stock, creating a leading lime and limestone platform. The deal expands MLM's SOAR 2030 strategy, adds over 2 billion tons of reserves and a broad Sun Belt footprint, and is expected to be earnings- and margin-accretive in the first full year after closing, supported by about $85 million in annual run-rate synergies.

  • Martin Marietta to acquire Lhoist North America for $13.5B in cash and stock.
  • Deal closes in 2H 2026, subject to regulatory approvals.
  • LNA 2025 gross sales $1.8B; Adjusted EBITDA $786M; 20 quarries, 45 terminals.
  • Synergies ~ $85M annual run-rate; accretive to earnings and margins in year one.
  • Leverage around 3.7x at close; target leverage below 2.5x within 24 months.

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