Where is the iron, paradox?
Buffs bog iron smelters and reduces tool consumption for lumbermills because if you played any country outside of Europe, you know what happens.
Iron smelter: 0.4 coal turns into 0.5 iron also removed max profit limit so that ai on automation wouldn’t close these buildings down.
Lumber mills: 0.3 tools into 1 lumber
If this is not enough I might also add a building boosting iron rgos in Australia. Largest iron ore deposits in the world and it has… 8, 8 iron rgo locations.