Sanmenxia Prefecture City is an aluminium smelter in China. Its listed capacity is 6,843,969 t of alumina/aluminum. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment. By capacity it ranks #3 among 81 aluminium smelters in China. It emits about 9,285,897 t CO₂e a year from Climate TRACE. That is 0.35% of the CO₂e from the 1,485 facilities in China that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 35% below the national median for this sector.

6,843,969t of alumina/aluminum
9,285,897t CO₂e / yr (Climate TRACE)
#47CO₂ rank in China
1.36t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-48193104.

Data status

Known source data

FacilitySanmenxia Prefecture City Climate TRACE
CountryChina Climate TRACE
Coordinates34.36202, 111.1049 Climate TRACE
Sector / subsectoraluminum Climate TRACE
Reported capacity6,843,969 t of alumina/aluminum Climate TRACE
Modelled CO₂e9,285,897 t/yr Climate TRACE

Calculated from the dataset

China rank#47 of 1485 · top 3.2% calculated
Global aluminum rank#4 of 257 · top 1.6% calculated
Climate contextderived from coordinates calculated

Not available

Owner / operatorNot available not in dataset
Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

At 6,843,969 t of alumina/aluminum, Sanmenxia Prefecture City is well above the median aluminium smelter in China (450,000 t of alumina/aluminum). Subsector: aluminum. As aluminium smelter, it requires high process heat (typically 600–900°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 9,285,897 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:

123ktanker trucks of gasoline burned
2.2 milliongasoline cars driven for a year
2.8kwind turbines running for a year

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Carbon cost and Scope 1 emissions

At its reported 9.3M t CO₂e/yr (Scope 1), Sanmenxia Prefecture City carries no domestic carbon price — and as a CBAM-covered product, its 9.3M t at the EU CBAM rate (€75/t) is €700M/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).

9.3M t CO₂e / yrScope 1 emissions
€700M/yrCBAM exposure on EU exports

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 aluminium smelters in China

Baise Prefecture City: 24,364,530 t of alumina/aluminum24.4MBaise Pref…Zhengzhou Prefecture City: 8,897,160 t of alumina/aluminum8.9MZhengzhou …Sanmenxia Prefecture City: 6,843,969 t of alumina/aluminum6.8MSanmenxia …Xinzhou Prefecture City: 6,615,837 t of alumina/aluminum6.6MXinzhou Pr…Zouping, Shandong aluminium plant: 6,400,000 t of alumina/aluminum6.4MZouping, S…Zibo Prefecture City: 5,931,440 t of alumina/aluminum5.9MZibo Prefe…Luliang Prefecture City: 3,878,249 t of alumina/aluminum3.9MLuliang Pr…Guiyang Prefecture City: 3,650,117 t of alumina/aluminum3.7MGuiyang Pr…

Listed capacity (t of alumina/aluminum), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Local climate

Sanmenxia Prefecture City sits in a humid subtropical (dry winter) climate zone (Köppen Cwa), at 34.4°N in the northern hemisphere.

~19°Ctypical annual mean
~27°Ctypical warm-season
Humid subtropical (dry winter): hot summers and mild winters

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
33/100environmental-severity index
25.6°Cseasonal temperature swing
768 kmdistance to coast
LowCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1378 W/m² to ambient — roughly 1.06× 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 #3 largest of 81 aluminium smelters in China by listed capacity (Climate TRACE).

Nearby industrial sites

Location

Coordinates 34.36202, 111.1049. View on OpenStreetMap.

Frequently asked questions

What type of facility is Sanmenxia Prefecture City?

Sanmenxia Prefecture City is a aluminium smelter in China. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment.

What capacity is listed for Sanmenxia Prefecture City?

The open dataset lists 6,843,969 t of alumina/aluminum of capacity for Sanmenxia Prefecture City.

How much CO₂ does Sanmenxia Prefecture City emit?

The page uses about 9,285,897 t CO₂e/year from the open dataset It ranks #47 among facilities in China by estimated CO₂.

Where is Sanmenxia Prefecture City located?

Sanmenxia Prefecture City is in China at approximately 34.36202, 111.1049.

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