; and (B) make the claim or site null and void by operation of law. (2) Effect Forfeiture under paragraph (1) shall not relieve any person of any obligation under this Act and applicable regulations, including reclamation, and other applicable law. (b) Relinquishment (1) In general A claim holder deciding not to pursue mineral activities on a mining claim, millsite, or tunnel site, may relinquish the claim or site by notifying the Secretary of the intent to relinquish the claim or site. (2) Effect A claim holder relinquishing a claim, millsite, or tunnel site under paragraph (1) shall be responsible for any obligation under this Act and applicable regulations, including reclamation, and other applicable law. (c) Use of mining claim (1) In general The continued use, occupancy, and retention of any mining claim, millsite, or tunnel site subject to this Act shall be exclusively for mineral activities as authorized under this Act. (2) Failure to use for mineral activities If the claim holder cannot demonstrate to the Secretary that the mining claim, millsite, or tunnel site has been used exclusively for mineral activities, the Secretary shall declare the claim, millsite, or tunnel site null and void. II Royalties 201. Royalty (a) In general Subject to subsection (c) and section 202, production of all locatable minerals from any mining claim located under the general mining laws and maintained in compliance with this Act shall be subject to a royalty established by the Secretary by regulation of not less than 2 percent, and not more than 5 percent, of the gross income from mining for production of all locatable minerals. (b) Royalty Rate The regulation shall establish a reasonable royalty rate for each locatable mineral subject to a royalty under this section that may vary based on the locatable mineral concerned. (c) No Royalty for Federal Land Subject to Existing Permit No royalty under subsection (a) shall be required for production on Federal land that— (1) is subject to an approved plan of operations or an