Ore Refinery
An Ore Refinery is an industry which can be used to convert raw ores such as iron ore into usable metal ingots such as iron ingots, which can then be used by Forgers or in production industries to make a variety of items.
The following research has been carried out into upgrade costs for this industry;
lv 2: 5 granite, 1 plank,1 slate, 7 iron ingots - holds 60 commodities
lv 3: 5