# Raw coal - Stage 2 (technology)

internal name `coal-mk02` · tier 2 (Logistic science pack, [tier 2](https://factorio.kalzumeus.com/tier/2.md))
HTML page: https://factorio.kalzumeus.com/tech/coal-mk02/

## Cost

160 units of (1 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 2 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 3 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 60 s each.

## Requires (2)

- [Raw coal - Stage 1](https://factorio.kalzumeus.com/tech/coal-mk01.md)
- [Logistic science pack](https://factorio.kalzumeus.com/tech/logistic-science-pack.md)

## Leads to (1)

- [Raw coal - Stage 3](https://factorio.kalzumeus.com/tech/coal-mk03.md)

## Unlocks (2 recipes)

### Coarse coal (`coarse-coal`)

- 2 s · tier 2
- Ingredients: 2 × [Crushed coal](https://factorio.kalzumeus.com/item/crushed-coal.md)
- Results: 1 × [Coarse coal](https://factorio.kalzumeus.com/item/coarse-coal.md), 4 × [Coal](https://factorio.kalzumeus.com/item/coal.md), 0.3 × [Coal dust](https://factorio.kalzumeus.com/item/coal-dust.md) (30% chance)
- Made in: Automated screener MK 01, Automated screener MK 02, Automated screener MK 03, Automated screener MK 04
- Unlocked by: [Raw coal - Stage 2](https://factorio.kalzumeus.com/tech/coal-mk02.md)

### Coal (`coarse-coal-to-coal`)

- 3 s · tier 2
- Ingredients: 3 × [Coarse coal](https://factorio.kalzumeus.com/item/coarse-coal.md)
- Results: 4 × [Coal](https://factorio.kalzumeus.com/item/coal.md)
- Made in: Secondary crusher MK 01, Secondary crusher MK 02, Secondary crusher MK 03, Secondary crusher MK 04
- Unlocked by: [Raw coal - Stage 2](https://factorio.kalzumeus.com/tech/coal-mk02.md)