4. Mineral Properties


	At March 31, 2020		At December 31, 2019
Mt Todd, Australia	$	2,146	$	2,146

The Company holds the Guadalupe de los Reyes gold and silver project in Sinaloa, Mexico (“Los Reyes”), which is under an option agreement with Prime Mining Corporation (“Prime Mining”). Prime Mining has a final $1,500 option payment remaining under the option agreement, which is due by October 2021. The $4,500 paid to date under the option agreement eliminated our carrying value in the property and the remaining amount is carried as a deferred option gain. Upon receiving the final option payment, the Company will transfer control of the Los Reyes project to Prime Mining. The Company will retain a capped net smelter return royalty and may assume a partial interest in any underground projects developed at Los Reyes.

Vista holds a net smelter return royalty (“NSR”) on the Awak Mas project in Indonesia. During 2019, Vista and the holder of Awak Mas amended the original royalty agreement to allow the holder or a nominated party to make a $2,400 payment to Vista by April 30, 2020 to cancel a 1% NSR on the first 1,250,000 ounces produced at Awak Mas and a 1.25% NSR on the next 1,250,000 ounces produced. The due date for this payment was subsequently amended to May 8, 2020. On April 29, 2020, the holder provided notice to Vista to exercise the option to cancel the related 1% NSR and 1.25% NSR upon making a $2,400 payment, which is required to be made to the Company by May 8, 2020. Upon receipt of the $2,400 payment, the holder or a nominated party will then have the right to cancel the remaining 1% NSR and 1.25% NSR for an additional payment of $2,500 by April 30, 2021. If the holder does not make the $2,400 payment by May 8, 2020, Vista will retain the full royalty interests.