any royalty payments attributable to production during the first 12 calendar months after the effective date of this Act shall be payable at the expiration of such 12-month period. 108. Existing production (a) In general The claim holder of a mining claim located or converted under this Act for which mineral activities have commenced under an approved plan of operations as of the effective date of this Act shall have the exclusive right of possession and use of the land subject to such mining claim for mineral activities, including the right of ingress and egress to such land for mineral activities, subject to the rights of the United States under this Act and other applicable Federal law. (b) Termination The rights of the claim holder under subsection (a) shall terminate upon completion of mineral activities on such land to the satisfaction of the Secretary. 109. Hardrock mining claim maintenance fee (a) Fee (1) In general (A) Required fees (i) In general Except as provided in section 2511(e)(2) of the Energy Policy Act of 1992 ( 30 U.S.C. 242(e)(2) ) and as otherwise provided in this Act, for each unpatented mining claim, millsite, or tunnel site on Federal land, whether located before or on the effective date of this Act, each such claimant shall pay to the Secretary, on or before September 1 of each year, a claim maintenance fee of $200 per claim to hold such unpatented mining claim, millsite, or tunnel site for the assessment year beginning at noon the following day. (ii) Fee in place of assessment work A claim maintenance fee paid under clause (i) shall be in lieu of the assessment work requirement in the Mining Law of 1872 ( 30 U.S.C. 28 et seq. ) and the related filing requirements in sections 314(a) and (c) of the Federal Land Policy and Management Act of 1976 ( 43 U.S.C. 1744(a) and (c)). (B) Fee adjustments Any adjustment to a fee under this subsection made under section 502 shall begin to apply in the first assessment year which begins after the adjustment is made. (C) Exception for small miners