Producer
Eco Material Technologies (now CRH)
North America's leading supplementary cementitious material (SCM) supplier; acquired by CRH plc for $2.1 billion in July 2025 (completed September 2025). In 2024, processed 6.2 million short tons of fresh fly ash/bottom ash and 467,806 tons of harvested legacy ash from legacy coal ash ponds, operating at 125+ sites across 42 states and serving 5,000+ customer locations. Pioneer in commercializing harvested legacy ash — Eco Material's Plant Bowen project in Georgia targets 600,000 t/yr from a 9-million-ton deposit for 15 years. The $2.1B acquisition price signals that fly ash supply control is a structural moat for global building materials companies.
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Goods downstream
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Facilities
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Stories
What they make
1 input Eco Material Technologies (now CRH) supplies
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Where they make it
2 facilities
Eco Material North Dakota Ash Harvest →
USNorth Dakota · chemical_plant
North Dakota coal ash impoundments — Eco Material outlined 18M ton+ potential from North Dakota ash harvests (Concrete Products, January 2024). North Dakota lignite coal plants generate very high volumes of fly ash at Minnkota Power's Milton Young Station and Basin Electric's plants.
Eco Material Plant Bowen Legacy Ash Harvest (Georgia) →
USBartow County, Georgia · chemical_plant
Legacy ash harvesting project at Georgia Power's Plant Bowen (Bartow County, GA) — the US's largest coal plant by generation. Eco Material targets 600,000 t/yr of processed fly ash from a 9-million-ton deposit for 15 years. This is the largest single fly ash harvesting project in the US and a proof-of-concept for commercializing the 1.3 billion tons of ponded ash in US impoundments.
What else they do
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Fly Ash Marketing (Fresh)
60%Legacy Ash Harvesting
22%SCM Blending & Distribution
18%
Intelligence
What's known
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Did you know2024
Eco Material Technologies sits at a paradoxical intersection of climate policy and concrete supply chain: fly ash is the primary low-carbon cement replacement in North American concrete, reducing embodied carbon by 15-40%. But fly ash is a coal combustion byproduct — every coal plant retirement (accelerated under IRA clean electricity incentives) removes a fly ash supply node. The faster the US retires coal, the tighter fly ash supply gets, which forces concrete makers back toward 100% Portland cement, which is more carbon-intensive. Eco Material's legacy ash harvesting business (pulling ash from abandoned coal ponds) exists precisely to bridge this gap — the climate transition ironically created demand for a company that cleans up coal pollution while making clean concrete.
Eco Material Technologies ↗Origin2023
Eco Material Technologies was built by consolidating regional fly ash marketing firms — businesses that act as intermediaries between coal-fired power plants (ash generators) and concrete producers (ash consumers). The model dates to the 1980s when the EPA began classifying fly ash as a "beneficial use" material rather than hazardous waste, creating a commercial market. Eco Material grew to become North America's largest SCM supplier and was acquired by CRH plc for $2.1 billion in 2025, integrating it into the world's largest building materials company.
Eco Material Technologies ↗