v3.25.3

Environmental Protection Agency (“EPA”) Settlement Agreement and Water Treatment Liabilities (Details Narrative) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Payments for deposits				$ 19,000,000
Monthly fee				20,000		$ 20,000
Restricted cash	$ 4,475,000	$ 2,975,000	$ 4,475,000	2,975,000	$ 4,475,000	4,475,000
Accretion expense on liability		453,580	$ 508,712	1,289,442	$ 1,441,373
Environment protection agency cost recovery liability, net of discount		9,838,671		9,838,671
Interest payable		156,743		156,743
Monthly installments		100,000		100,000
Monthly costs water treatment charges				100,000
Prepaid expense	100,000					100,000
Third Party [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Repayments of First Mortgage Bond				2,975,000
EPA Settlement Agreement Amendment [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Payments to EPA	3,000,000
Repayments of First Mortgage Bond	$ 14,000,000
Repayments of Lines of Credit						4,475,000
EPA Settlement Agreement Amendment [Member] \| Payment Bond One [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Repayments of First Mortgage Bond						$ 9,999,000
EPA Settlement Agreement Amendment [Member] \| Payment Bond Two [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Repayments of First Mortgage Bond				$ 4,001,000

Environment protection agency cost recovery liability long term net discount.

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Monthly installments.

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Payments to EPA.

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Amount of amortization expense attributable to debt issuance costs.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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The amount of cash paid for deposits on goods and services during the period; excludes time deposits and deposits with other institutions, which pertain to financial service entities.

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Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.

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The cash outflow from the repayment of a long-term debt instrument issued, secured by a first mortgage deed of trust, containing a pledge of real property. The lender has the highest claim on the property in case of default.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Cost incurred related to water production and may include cost of treatment plants, pumps, pipes and reservoir, purchased water, power and pump taxes as well as the cost of reducing water leakage.

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Bunker Hill Mining Corp. 10-Q