PAYMENT ON ACCOUNT OF ROYALTY. The Lessee shall pay on account of royalty —
(a) four provisional royalty payments in respect of royalty payable under subclause 2(4) for the three month periods ending 31st March, 30th June, 30th September and 31st December in each royalty year, each of which payments shall be made no later than 23rd March, 23rd May, 23rd September and 23rd December respectively in each royalty year, the amount of each payment being equal to the royalty as estimated by the Lessee to be payable under subclause 2(4) for the preceding three month periods ending 31st December, 31st March, 30th June and 30th September respectively. In the 1985 royalty year the first provisional royalty payment shall be paid no later than 14 days after the commencement date. Each of the first four provisional payments shall be $22.7 million;
(b) where the sum of the four provisional payments referred to in paragraph (a) of this subclause 2A(2) in respect of the royalty year is less than 90% of the assessment under subclauses 2(11), 2(12) and 2(13) of royalty payable, additional royalty shall be paid of an amount calculated by applying a rate of interest equal to the accumulation rate to the difference between the sum of the four provisional royalty payments in respect of the royalty year and the assessment under subclauses 2(11), 2(12) and 2(13) of royalty payable in respect of the royalty year, and this lease shall apply to and in relation to that additional royalty (except for the purpose of making a calculation under this subclause 2A(2)) as if the additional royalty was assessed under subclauses 2(11), 2(12) and 2(13), but such additional royalty shall not be payable in respect of the 1985 royalty year. For the purpose of the 1986 royalty year the relevant comparison shall be between the sum of the two provisional payments due no later than 23rd September and 23rd December 1986 and 45% of the assessment of royalty payable under subclauses 2(11), 2(12) and 2(13);
(c) the Minister may, in his discretion, if he is satisfied that the liability to pay additional royalty under paragraph (b) of this subclause 2A(2) was not brought about by an attempt on the part of the Lessee to avoid the payment of royalty, remit additional royalty payable under that subparagraph, or any part of that additional royalty, and on his so doing the liability to pay the additional royalty or part of the additional royalty, as the case may be, shall cease; and
(d) at the time of making a statement under subclause 2(5) i...
