How much mine methane comes with coking coal from Karaganda underground mines?
Karaganda coking coal comes from deep underground mines, which release far more methane than open pits. Without mine data, IPCC Tier 1 gives 18 cubic metres per tonne, with a range of 10 to 25, plus about 2.5 after mining. Ask for ventilation measurements.
The default
- Underground mining: 10 to 25 cubic metres per tonne, 18 average (IPCC 2006).
- Post mining: about 2.5 cubic metres per tonne.
- One cubic metre weighs about 0.67 kg.
Measured is better
Gassy mines monitor ventilation air and degasification. A figure from those records is more accurate than the default.
Where it goes
Scope 3 for a steel plant buying the coal. Scope 1 if your group runs the mine, as some integrated steel groups do.
What Senseible does here
Senseible turns supplier invoices into a Scope 3 record with the supplier, quantity and factor behind every figure, so you can see which supplier data is still missing.
Sources: 2006 IPCC Guidelines, Volume 2: Energy, GHG Protocol Corporate Value Chain (Scope 3) Standard
Last reviewed 2026-10-21.