mineral · input
Crushed limestone, granite, or trap rock comprising 93-95% of asphalt pavement by weight; quarried domestically; US market dominated by three companies controlling 50% of 1.55B metric ton annual output
4
Source countries
5
Companies
1
Goods affected
0
Claims on record
What depends on it
1 essential American goods rely on crushed stone aggregate somewhere upstream in their supply chain.
Where it comes from
Share of global supply, by country.
| Country | Share of supply |
|---|---|
| CNChina | 50% |
| USUnited States | 25% |
| INIndia | 8% |
| IEIreland | 1% |
Who makes it
5 companies produce crushed stone aggregate.
US's largest crushed stone producer; operates 300+ quarries, mines, and distribution facilities; supplies aggregates for asphalt, concrete, and railroad ballast; top-ranked by USGS in crushed stone production
US's second-largest crushed stone and aggregate producer; major supplier of limestone, granite, and sand/gravel for road paving and construction across eastern and central US
North American subsidiary of CRH plc; operates 1,300+ aggregate, asphalt, concrete, and paving locations across US and Canada; third-largest US aggregate producer
CRH plc (Dublin Ireland; NYSE: CRH — relocated NYSE primary listing from London 2023; formerly LSE primary; ~$35B revenue) is the world's largest building materials company by market capitalization and the #3 US crushed stone/aggregate producer through its Oldcastle Materials subsidiary. CRH's US aggregates business (Oldcastle) operates ~280 quarries across the US with particular strength in the US Southeast, Ohio River Valley, and Pacific Northwest. CRH/Oldcastle holds approximately 11-14% of US crushed stone market. CRH's Ireland headquarters and global scale make it the only non-US headquartered company in the US aggregate oligopoly. CRH has pursued an aggressive US acquisition strategy — purchasing Lane Industries, Pennsy Supply, and dozens of regional quarry operators over 30 years — making its US aggregate portfolio the product of hundreds of acquisitions rather than organic growth.
World's second-largest cement producer by capacity (~274 Mt/yr). Record performance 2024. Divested US cement operations in 2024 (spun off as "Amrize"). Operates in 60+ countries with vertically integrated quarrying through distribution.
