To revise the taxation of “non-ferrous” mines (including new copper and other mineral mines in the Upper Peninsula). The bill is part of a package that would exempt these mines from property, income, sales and use taxes, and instead levy a “severance tax” on them based on the amount of material extracted. Various credits would be allowed against pre-operational start-up costs, including regulatory compliance costs. Most of the tax revenue would go to the local government, but some would go to a new state “rural development fund”.