This article has evidence gaps. Read the research notes before relying on its conclusions.
Research cutoff: · Updated:A construction material with a separate industrial geography
Iran's cement industry serves domestic building activity and export markets. The US Geological Survey identifies Iraq, Kuwait and Afghanistan among destinations for Iranian cement and clinker. These are related products, but their production and trade figures should remain separate: clinker is an intermediate material, while finished cement results from further grinding and blending. s1 s2
This distinction matters when reading industry announcements. A clinker shipment represents a different processing stage from a cement shipment. Combining their tonnages without specifying the measure can obscure what factories actually manufacture and sell.
[s1] [s2]From raw materials to cement
The International Organization for Standardization describes cement manufacture as raw-material and fuel preparation, clinker production through high-temperature processing, and the grinding and blending of clinker with other constituents. Its process inventory includes gypsum, limestone, slag and other materials as possible inputs at the cement-grinding stage; the combination depends on the product. s2
A useful assessment therefore asks where an operation sits in this chain. Kiln production and cement grinding have different inputs and emissions boundaries. An increase in finished cement cannot, by itself, establish an equivalent increase in domestic clinker production.
[s2]The principal cement manufacturing stages
Arrows describe material processing. This generic manufacturing sequence does not document the equipment or product mix of any particular Iranian factory.
[s2]Iran · gregorian
Data, units and methodology
Transcribed from the USGS Iran 2024 report's Production table, row 'Cement, hydraulic'. The table presents calendar-year columns and states that values are reported unless otherwise marked. These cells carry no estimate marker. Output is a production flow, not capacity, clinker output, consumption or exports. No conversion from Iranian reporting years has been performed.
| Reporting period | Hydraulic cement (metric tonnes) |
|---|---|
| 2020 | 68,300,000 observed — Reported without an estimate marker.[s1] |
| 2021 | 62,700,000 observed — Reported without an estimate marker.[s1] |
| 2022 | 64,200,000 observed — Reported without an estimate marker.[s1] |
| 2023 | 71,400,000 observed — Reported without an estimate marker.[s1] |
| 2024 | 70,700,000 observed — Reported without an estimate marker.[s1] |
The USGS source was inspected through extensive indexed source extracts; direct page retrieval repeatedly timed out.
The source table states that information was available through February 3, 2026; its publication date was not established.
This five-year release does not satisfy the intended fifteen-year coverage.
Earlier vintages have not been reconciled, and no claim is made that every historical revision has been identified.
Why energy efficiency is only part of the emissions question
Cement's direct carbon emissions have two distinct origins: fuel combustion and the chemical decomposition of carbonate raw materials during calcination. Electricity generation and transport can add emissions outside those direct process boundaries. Improving energy supply therefore addresses only part of the manufacturing footprint. s2
IRENA identifies reducing clinker use and changing energy inputs among approaches to cement decarbonization. These are technological pathways, not evidence that Iranian producers have implemented them at a documented scale. s3
The practical conclusion is to read production, trade and environmental performance together, while keeping their definitions separate. National output establishes industrial scale; it does not establish plant efficiency, product quality or environmental compliance.
[s2] [s3]Sources & research notes
- [s1] Iran — 2024 Report and Production tableU.S. Geological Survey, National Minerals Information Center · 2024 Report: Commodity Review—Cement; Production table, Cement, hydraulic, 2020–2024 · Accessed 2026-10-27
- [s2] ISO 19694-3:2023 — Stationary source emissions: Determination of greenhouse gas emissions in energy-intensive industries — Part 3: Cement industryInternational Organization for Standardization · Introduction 0.1–0.2; Table 1 · Accessed 2026-10-27
- [s3] Decarbonising hard-to-abate sectors with renewables — CementInternational Renewable Energy Agency · Cement sector overview and emissions-reduction pathways · Accessed 2026-10-27
limitations
- This is a supported draft rather than a publication-complete account of the industry.
- Some evidence was available only as indexed extracts, explicitly identified in source records.
- Research occurred one day after the cutoff. Undated live pages could not be conclusively reconstructed as they stood on the cutoff date.
unverified items
- Current plant ownership, regional production distribution and operational disruptions.
- Plant-level emissions, fuel mix, product standards and implementation of decarbonization measures.
- Availability of a newer comparable national production release before the cutoff.
data gaps
- Comparable observations for 2012–2019 and 2025–2026 were not verified.
- No reconciled annual clinker, consumption, export or emissions series was established.
coverage period
Annual cement output: 2020–2024; generic manufacturing and emissions context.