# What carbon figure should a Philippine rebar mill use for the billets it imports?

Canonical: https://senseible.earth/answers/philippine-rolling-mill-imported-billets-carbon

Ask the billet supplier for CO2 per tonne for the route and year; billets from blast furnace plants carry much more than billets from scrap based electric furnaces. Multiply by tonnes imported as Scope 3, Category 1. Your reheating furnace fuel is Scope 1 and mill power is Scope 2.

## Billet route

- Blast furnace and converter billets: high per tonne.
- Scrap based electric furnace billets: much lower.
- DRI based electric furnace billets: in between, depending on fuel.

## Your own share

Reheating fuel and rolling power are usually small next to the billet. Getting the billet figure right matters most.

## Records

Bills of lading with tonnes and supplier, the supplier's figure, and your fuel and power bills.

## What Senseible does here

Senseible reads coal, coke, gas, electricity and freight invoices into a dated, fingerprinted record per site, so each figure in a CBAM or buyer response can be traced back to the documents behind it.

- [Selling billets to rerollers](https://senseible.earth/answers/iskenderun-mill-selling-billets-to-rerollers-data)
- [Blast furnace vs EAF vs DRI](https://senseible.earth/answers/cbam-cost-blast-furnace-vs-eaf-vs-dri-steel)
- [Philippines grid factor](https://senseible.earth/answers/philippines-grid-emission-factor-by-grid)

Sources: [GHG Protocol Corporate Value Chain (Scope 3) Standard](https://ghgprotocol.org/corporate-value-chain-scope-3-standard), [worldsteel, CO2 data collection methodology (worldsteel.org)](https://worldsteel.org)

Last reviewed 2026-10-21.