Section 12: Control of production of ore containing tin.

(1) No person may in any one period of three of successive months ending on the 31st day of March, the 30th day of June, the 30th day of September or the 31st day of December in any one year remove from the ground ore containing tin which if converted into tin concentrates of shipping grade would be in excess of the amount of tin concentrates of shipping grade which may be produced under a licence in force issued to that person under subsection (1) of section 5.
(2) Any person who removes from the ground any ore containing tin which if converted into tin concentrates of shipping grade would be in excess of the amount for which such a licence has been issued or without such a licence as aforesaid shall be guilty of an offence under this Act.