San Antonio Cement Plant — United States
Cement Plant in United States. Approximate location 29.5479, -98.41888.
Cement PlantUnited StatesCO₂ estimate (modelled)
San Antonio Cement Plant is a cement plant in United States. Its listed capacity is 900,000 t of cement. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length. It is operated by Capitol Aggregates Inc. By capacity it ranks #19 among 32 cement plants in United States. It emits about 280,062 t CO₂e a year from Climate TRACE. That is 0.05% of the CO₂e from the 1,910 facilities in United States that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 14% below the national median for this sector.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-42547088.
Data status
Known source data
Calculated from the dataset
Not available
Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.
Similar facilities by modelled emissions
- Huaxin Tanga Cement Plant · 280,264 t CO₂e/yr · Tanzania
- Hima Cement Plant · 279,831 t CO₂e/yr · Uganda
- Illinois LaSalle Cement Plant · 280,531 t CO₂e/yr · United States
- Mindouli Cement Plant · 280,568 t CO₂e/yr · Congo
- Joliette Cement Plant · 281,008 t CO₂e/yr · Canada
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
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In context: how this facility compares
At 900,000 t of cement, San Antonio Cement Plant is below the median cement plant in United States (1,180,000 t of cement). Subsector: cement. As cement plant, it requires high process heat (typically 800–1400°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 280,062 t CO₂e a year looks like
This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:
Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.
Carbon cost and Scope 1 emissions
At its reported 280k t CO₂e/yr (Scope 1), San Antonio Cement Plant carries no domestic carbon price — and as a CBAM-covered product, its 280k t at the EU CBAM rate (€75/t) is €21.1M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).
Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.
Capacity vs largest cement plants in United States
Listed capacity (t of cement), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Operator
Operated by Capitol Aggregates Inc.
Local climate
San Antonio Cement Plant sits in a humid subtropical climate zone (Köppen Cfa), at 29.5°N in the northern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1297 W/m² to ambient — roughly 1.00× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby sites
The #19 largest of 32 cement plants in United States by listed capacity (Climate TRACE).
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Location
Coordinates 29.5479, -98.41888. View on OpenStreetMap.
Frequently asked questions
What type of facility is San Antonio Cement Plant?
San Antonio Cement Plant is a cement plant in United States. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.
What capacity is listed for San Antonio Cement Plant?
The open dataset lists 900,000 t of cement of capacity for San Antonio Cement Plant.
How much CO₂ does San Antonio Cement Plant emit?
The page uses about 280,062 t CO₂e/year from the open dataset It ranks #382 among facilities in United States by estimated CO₂.
Where is San Antonio Cement Plant located?
San Antonio Cement Plant is in United States at approximately 29.5479, -98.41888.
Who operates San Antonio Cement Plant?
The operator recorded in the open dataset is Capitol Aggregates Inc.