# Martin Marietta to buy Lhoist North America in $13.5 billion deal

Martin Marietta Materials Inc. agreed to acquire Lhoist North America for $13.5 billion, funded with $7 billion cash and $6.5 billion in shares. The deal was announced on June 29, 2026.

- Type: Acquisition
- Announced: 2026-06-29
- Where: United States
- Value: $13.5B
- Status: announced
- Products: limestone, building materials
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [Lhoist North America](https://endata.com/companies/15710.md) (target)
- [Lhoist Group](https://endata.com/companies/15711.md) (partner)
- [Lhoist Group](https://endata.com/companies/15711.md) (target)
- [Martin Marietta Materials](https://endata.com/companies/25131.md) (acquirer)
- [Financière de Gestions Internationales](https://endata.com/companies/92826.md) (investor)

## Sources

- [reuters.com](https://www.reuters.com/legal/transactional/martin-marietta-combine-with-lhoist-north-america-135-billion-deal-wsj-reports-2026-06-29/), 2026-06-29: "Martin Marietta to fund the deal with $7 billion cash and $6.5 billion in shares"
- [bloomberg.com](https://www.bloomberg.com/news/articles/2026-06-29/martin-marietta-to-buy-lhoist-north-america-for-13-5-billion), 2026-06-29: "Martin Marietta Materials Inc. agreed to combine with building materials supplier Lhoist North America in a transaction valued at $13.5 billion, including debt."
- [barchart.com](https://www.barchart.com/press-releases/3030657/martin-marietta-to-combine-with-lhoist-north-america-in-13-5-billion-transaction), 2026-06-29: "This transaction represents another transformational milestone for Martin Marietta and directly advances our SOAR 2030 objective to expand our complementary, upstream Specialties segment in lime and other industrial minerals."
- [ir.martinmarietta.com](https://ir.martinmarietta.com/news-releases/news-release-details/martin-marietta-combine-lhoist-north-america-135-billion), 2026-06-29: "This transaction represents another transformational milestone for Martin Marietta and directly advances our SOAR 2030 objective to expand our complementary, upstream Specialties segment in lime and other industrial minerals."
- [globalcement.com](https://www.globalcement.com/news/20933-martin-marietta-materials-to-combine-with-lhoist-in-us-13bn-deal), 2026-06-30: "This transaction represents another transformational milestone for Martin Marietta and directly advances our SOAR 2030 objective to expand our Specialties segment in lime and other industrial minerals."
- [cemnet.com](https://www.cemnet.com/News/story/181611/martin-marietta-to-acquire-lhoist-north-america-for-us-13-5bn.html), 2026-07-01: "This transaction marks a transformational milestone that advances the company's SOAR 2030 objective to expand its upstream specialties segment."
- [mining-outlook.com](https://www.mining-outlook.com/commodities/aggregates-mining-sector/lhoist-and-martin-marietta-combine-north-american-mining-and-materials-portfolio), 2026-07-03: "This combination is a milestone in our Group's history."
- [agg-net.com](https://www.agg-net.com/news/martin-marietta-get-green-light-to-combine-with-lhoist), 2026-08-10: "This combination is a milestone in our Group's history."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.