|Transported by||Molten Channel|
In the very early game, Molten Iron is produced by smelting Metal Scrap recycled from the Abandoned Communications Station with Coal in a Blast Furnace. Once the Metal Scrap supply has been exhausted and Iron Ore is being mined, it is produced by smelting Iron Ore with Coal.
Upon unlocking the Blast Furnace II, Molten Iron can be made from Iron Ore Crushed at a higher efficiency with the added requirement of Limestone. At endgame, Molten Iron is generally produced using using Graphite in place of Coal and with the addition of Water to reduce the amount of Slag and Exhaust byproducts produced.