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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) | Jun. 30, 2023 | Dec. 31, 2022
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Income Tax Disclosure [Abstract] |  |
Deferred tax liabilities |  |
Deferred tax assets: |  |
Exploration costs | 1,722,956 | 1,787,571
PRC tax losses | 12,246,329 | 12,211,867
US federal net operating loss | 1,556,642 | 1,336,405
Total deferred tax assets | 15,525,927 | 15,335,843
Valuation allowance | (10,237,172) | (10,016,934)
Net deferred tax asset | $ 5,288,755 | $ 5,318,909

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