Raising or lowering taxes is up to the Department of Finance. It might be able to give you information about that. I have no idea what impact it might have.
In reply to your third question about what are called inputs, there are several analyses, some of which were done by the World Health Organization, to develop a protocol on illicit trade in tobacco. The conclusions are that other than leaf tobacco there are no inputs, no precursors, that are unique to tobacco manufacturing. It would be very difficult to have measures that would make it so that only licensed tobacco manufacturers could get them.