# What CBAM data does an Indian cement grinding unit need from its clinker supplier?

Canonical: https://senseible.earth/answers/indian-cement-grinding-unit-cbam-clinker-data

The clinker supplier's verified embedded emissions per tonne, direct and indirect, for the year the clinker was made, plus the installation it came from. Clinker is a precursor for cement, so a grinding unit adds the clinker's emissions to its own grinding electricity and fuel.

## What the grinding unit adds

- Electricity for grinding, since indirect emissions count for cement.
- Any fuel for drying additives.
- Calcined clay bought in, which is also a precursor.

## If the supplier sends nothing

Default values can be used for the clinker as a last resort, but they include a mark-up and usually raise the buyer's cost. Ask before you sign the clinker contract.

## Records to keep

Clinker receipts by supplier, tonnes ground, and cement output by clinker content, for at least six years.

## What Senseible does here

Senseible reads an exporter's fuel and electricity invoices into dated, fingerprinted records that a monitoring plan and a verifier can trace back to source. Senseible does not verify emissions, register operators in the CBAM Registry or file CBAM declarations.

- [Marmara grinding with imported clinker](https://senseible.earth/answers/marmara-grinding-imported-clinker-cbam)
- [Cement figure per tonne of clinker content](https://senseible.earth/answers/cement-exporter-cbam-per-tonne-clinker-content)
- [Precursors bought from several suppliers](https://senseible.earth/answers/cbam-precursor-bought-from-several-suppliers)

Sources: [European Commission, CBAM Guidance No. 5a, cement](https://taxation-customs.ec.europa.eu/document/download/f87a2022-9dcb-45cb-a415-4c460e5ad672_en?filename=Guidance%20No.%205a%20-%20Sector-specific%20guidance%20document%20on%20cement.pdf), [European Commission, CBAM Guidance No. 2, quick guide for non-EU operators (14 August 2026)](https://taxation-customs.ec.europa.eu/document/download/91e1056c-4524-4705-aaa7-e25c1439a87a_en?filename=Guidance%20No.%202%20-%20Quick%20guide%20for%20non-EU%20operators%20on%20CBAM%20implementation.pdf), [European Commission, CBAM Guidance No. 1, introduction to CBAM concepts (definitive period)](https://taxation-customs.ec.europa.eu/document/download/031abf60-21a9-4822-b258-ac8b111d8358_en?filename=Guidance%20No.%201%20-%20Introduction%20to%20CBAM%20concepts.pdf)

Last reviewed 2026-10-23.