Martin Marietta Acquisition of Lhoist North America

Martin Marietta Materials (NYSE: MLM) said in a press release on June 29, 2026, that its acquisition of Lhoist North America will expand its limestone and minerals business, drawing investor attention to the deal’s size and regulatory-approval risks.

Deal Terms and Strategic Outlook

Martin Marietta will acquire all equity interests in Lhoist North America under a Securities Sale Agreement dated June 27, 2026, as disclosed in its Form 8-K. The transaction values Lhoist North America at approximately $13.5 billion, including debt. Consideration consists of $7.0 billion in cash, subject to customary purchase-price adjustments, and $6.5 billion in Martin Marietta common stock, with the stock portion valued using the 15-day volume-weighted average price before signing.

Lhoist North America operates 20 quarries and production facilities and 45 distribution terminals producing hi-calcium lime, dolomitic lime, and related industrial minerals for steel, infrastructure, environmental, and agricultural markets. For the twelve months ended December 31, 2025, Lhoist North America generated $1.8 billion in gross sales and $786 million of Adjusted EBITDA, a proxy for operating profit. The company holds more than 2 billion tons of high-quality limestone reserves, positioned in high-growth Sun Belt metropolitan corridors, with a reserve life spanning multiple centuries.

The deal implies a valuation of roughly 15 times Adjusted EBITDA for the year ended 2025, explicitly incorporating estimated run-rate cost synergies of about $85 million annually. Martin Marietta expects to close the transaction in the second half of 2026, subject to regulatory approvals and customary closing conditions.

The combined net leverage ratio is projected at about 3.7 times at closing, with plans to reduce leverage below 2.5 times within 24 months through free cash flow generation. The Berghmans family, controlling Lhoist Group, is expected to hold roughly 15% of Martin Marietta on a fully diluted basis and will have the right to appoint one director and one board observer after closing.

The transaction’s structure, combining a significant cash payment with substantial share issuance, reshapes Martin Marietta’s near-term funding and capital allocation. Management bases the purchase case on integration savings and free cash flow to meet leverage targets, making the pace of integration a key factor in the deal’s financial logic.

Martin Marietta emphasizes Lhoist North America’s operating footprint and long-lived reserves as the strategic rationale. The quarry and terminal network supplies materials critical for infrastructure and industrial customers. The reserve position in faster-growing metropolitan corridors supports long-term demand, underpinning the valuation and expected margin improvement.

Regulatory approvals remain a gating factor for the closing timetable. The company’s leverage reduction plan depends on post-close cash generation and successful integration.