Martin Marietta to combine with Lhoist North America in $13.5 billion deal
Money MovesA building-materials giant buys its way to the top of the U.S. lime market, a critical input for steelmaking
June 29th, 2026: Martin Marietta agrees to combine with Lhoist North AmericaNew here? Follow stories to track developments over time. Create a free account to get updates when stories you care about change.
Overview
Updated Jun 29Lime is the quiet ingredient inside American steel. On June 29, 2026, Martin Marietta agreed to buy Lhoist North America for $13.5 billion, making one company the country's largest producer of it.
The deal trades $7 billion in cash and about $6.5 billion in stock for quarries, kilns, and roughly 2 billion tons of limestone reserves. Lhoist's owners, Belgium's Berghmans family, would walk away with about 15% of Martin Marietta.
Why it matters
Lime is essential to making steel, cement, and clean water. This deal puts the largest U.S. supply of it under one company's control.
Questions about this story
Free account needed to ask — your question is kept and asked for you right after sign-up. Answers are public.
No questions yet — be the first to ask.
Key Indicators
Voices
Curated perspectives — historical figures and your fellow readers.
Play
Exploring all sides of a story is often best achieved with Play.
Higher or Lower
A number from this story, against one from elsewhere in the news — guess which is bigger, then keep the chain going. 5 rounds, 3 strikes; a miss costs a strike and resets your streak.
Keyboard: ↓/L lower · ↑/H higher
0 points — sign up to put that on the leaderboard.
Connections
Sixteen names from the news. Find the four hidden groups of four. Four mistakes max.
Sign up to keep a daily streak — a new puzzle lands every day.
Exit debate?
Your progress in this debate will be lost.
- 1 Two AI personas square off on this story.
- 2 You predict who'll win each round — correct picks earn XP.
- 3 One crossfire question is yours to fire. Pick it carefully.
Couldn't generate a topic
Select Your Champions
Choose one persona for each side of the debate
DEBATE TOPIC
Choose personas with different perspectives for a more dynamic debate.
Select debater for this side:
No debate personas available right now.
Select debater for this side:
No debate personas available right now.
Who's Got This Round?
Make your prediction before the referee scores
The referee scores both sides on
Round Results
Set the Crossfire
Pick the question both personas must answer in the final round
Debate Oracle! You called every round!
Sharp Instincts! You know your debaters!
The Coin Flip Strategist! Perfectly balanced!
The Contrarian! Bold predictions!
Inverse Genius! Try betting the opposite next time!
XP Breakdown
Prediction History
People Involved
Organizations Involved
A Raleigh-based producer of aggregates, cement, and now lime, listed on the New York Stock Exchange.
The North American arm of Lhoist Group, a privately held Belgian lime and minerals company.
Timeline
1889 June 2026
-
Martin Marietta agrees to combine with Lhoist North America
Latest DealMartin Marietta announces a $13.5 billion cash-and-stock agreement, roughly $7 billion cash plus stock, to become the largest U.S. lime producer. Close expected in the second half of 2026, pending regulatory approval.
-
Martin Marietta buys Texas Industries
BackgroundAn earlier acquisition that expanded Martin Marietta's cement and aggregates footprint, part of a long buy-and-build pattern.
-
Lhoist founded in Belgium
BackgroundThe Berghmans family starts a lime business that grows into a global minerals producer across more than 20 countries.
Historical Context
3 moments from history that rhyme with this story — and how they unfolded.
Martin Marietta's failed bid for Vulcan Materials (2011-2012)
Martin Marietta launched a $4.7 billion hostile bid to merge with rival Vulcan Materials, the other U.S. aggregates leader. Vulcan resisted. A Delaware court blocked the move, ruling Martin Marietta had misused confidential information from earlier friendly talks.
The court barred Martin Marietta from pursuing Vulcan for four months, and the bid died.
Martin Marietta turned to friendlier deals instead, buying Texas Industries in 2014 and building scale through agreed acquisitions.
It shows Martin Marietta's appetite for big consolidation and why it now prefers negotiated deals like Lhoist over contested takeovers.
Holcim-Lafarge cement merger (2015)
Switzerland's Holcim and France's Lafarge merged to form the world's largest cement maker, a roughly $40 billion combination. Antitrust regulators in Europe, India, and elsewhere demanded large divestitures before approving.
The companies sold billions in plants and assets across multiple countries to win clearance.
LafargeHolcim became the dominant global building-materials group, proving big mergers in this sector close only after heavy regulatory bargaining.
It previews the kind of antitrust scrutiny and possible asset sales the Martin Marietta-Lhoist deal could face.
Martin Marietta acquires Texas Industries (2014)
Martin Marietta bought Texas Industries in a stock deal worth about $2.7 billion, gaining cement plants and aggregates positions across Texas and California. The deal closed within months.
Martin Marietta added cement capacity and expanded in fast-growing Sun Belt markets.
The acquisition became a template for the company's growth through negotiated purchases of complementary assets.
The Lhoist deal follows the same playbook: buy a complementary materials business to enter a new, higher-margin product line.
