# How does a Sivakasi match unit work out the carbon footprint of its matchboxes?

Canonical: https://senseible.earth/answers/sivakasi-match-unit-carbon-footprint

Most of the footprint sits in materials, not energy: wood or paper splints, board for boxes, wax and the head chemicals. Weigh each per thousand boxes and apply material factors, then add the unit's electricity and any diesel. Manual units use little power.

## Per thousand boxes

- Splints: wood or wax-coated paper, by weight.
- Box board and printed labels.
- Paraffin wax and head composition chemicals.

## Energy

Electricity for mechanised lines and drying, plus any genset diesel, divided by output.

## What Senseible does here

Senseible turns your fuel, power and material invoices into a dated, sourced activity record, the starting point for a per-unit footprint.

- [Candle footprint per kg](https://senseible.earth/answers/candle-carbon-footprint-per-kg)
- [What to send a buyer for a PCF](https://senseible.earth/answers/buyer-asked-for-product-carbon-footprint-what-to-send)

Sources: [ISO 14067:2018, carbon footprint of products (iso.org)](https://www.iso.org), [GHG Protocol Corporate Standard](https://ghgprotocol.org/corporate-standard)

Last reviewed 2026-10-22.