Tonbak Cement Plant — Iran

Tonbak Cement Plant is a cement plant in Iran. Its listed capacity is 2,760,000 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 Kangan Cement Co. By capacity it ranks #7 among 37 cement plants in Iran. It emits about 1,275,583 t CO₂e a year from Climate TRACE. That is 1.0% of the CO₂e from the 126 facilities in Iran that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 28% above the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1897169.

In context: how this facility compares

At 2,760,000 t of cement, Tonbak Cement Plant is well above the median cement plant in Iran (1,460,000 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 1,275,583 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.

Capacity vs largest cement plants in Iran

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

Operator

Operated by Kangan Cement Co.

Local climate

Tonbak Cement Plant sits in a hot desert climate zone (Köppen BWh), at 27.7°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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1244 W/m² to ambient — roughly 0.96× 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 #7 largest of 37 cement plants in Iran by listed capacity (Climate TRACE).

Nearby industrial sites

• IRN-Jam_methanol · Chemical Plant · 600,586 t CO₂
• Hengam Ammonia and Urea Petrochemical Complex · Chemical Plant · 4,591,152 t CO₂
• Marjan Methanol Complex · Chemical Plant · 550,688 t CO₂
• Morvarid Petrochemical Company (5th Olefin complex), Assaluyeh,Bushehr · Petrochemical · 651,742 t CO₂
• Kavian Petrochemical Company (11th Olefin complex), Assaluyeh,Bushehr · Petrochemical · 2,606,969 t CO₂
• Jam Petrochemical Co. (10th Olefin omplex), Assaluyeh,Bushehr · Petrochemical · 1,853,494 t CO₂

Location

Coordinates 27.7397, 52.16773. View on OpenStreetMap.

Frequently asked questions