A lot of the coal used in Swedish metal-working (up to relatively late, but I don't actually have dates, here, gut feel is 18050s) was charcoal, rather than min

A lot of the coal used in Swedish metal-working (up to relatively late, but I don't actually have dates, here, gut feel is 18050s) was charcoal, rather than mined coal. With quite advanced cooperatives[1] producing the charcoal for the mining/refining cooperatives[1]. [1] Somewhat loose translation of "kolare" and "bergslag", here.