31.3. An operator may deduct, from its duties otherwise payable under section 5 for a particular fiscal year that begins after 31 December 2013, an amount equal to the lesser of(1) the amount by which the operator’s mining tax on its annual profit for the particular fiscal year, determined under any of sections 29.1 to 29.3, exceeds its minimum mining tax for the fiscal year, determined under section 30.1; and
(2) the cumulative balance on account of the operator’s minimum mining tax at the end of the particular fiscal year.
In the formula in the second paragraph,(1) A is the operator’s minimum mining tax for the preceding fiscal year, determined under section 30.1; and
(2) B is the operator’s mining tax on its annual profit for the preceding fiscal year, determined under any of sections 29.1 to 29.3.