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10. Hillgrove Advances Payable
12 Months Ended
Dec. 31, 2020
Debt Disclosure [Abstract]  
Hillgrove Advances Payable

On November 7, 2014, the Company entered into an advance and concentrate processing agreement with Hillgrove Mines Pty Ltd of Australia (Hillgrove) in which the Company was advanced funds from Hillgrove to build facilities to process Hillgrove antimony concentrate. The Company has not processed Hillgrove concentrate for the past three years. The agreement requires the Company to pay the advance balance after Hillgrove issues a stop notice. Payments would begin 90 days after the stop notice issue date and be made in six equal and quarterly installments. The balance of the advance liability due to Hillgrove was $1,134,221 at both December 31, 2020 and 2019. Hillgrove was acquired by Red River Resources LTD (“Red River”) during 2019. Although the Company has not received a stop notice through the date these financial statements were issued, management has determined that one is likely forthcoming in 2021. Based on management’s assessment of likelihood and the payment terms of the agreement, $378,074 of the balance is classified as current as of December 31, 2020 and 2019.