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Summary of Material Accounting Policy Information (Tables)
 12 Months Ended
Dec. 31, 2024
Disclosure of Material Accounting Policy Information [Abstract]  
Schedule of Disclosure of the Company's Subsidiaries Details regarding the Company and its principal subsidiaries as of December 31, 2024 are as follows:
EntityProperty/
function		Registered
Functional currency (1)
Aris Mining CorporationCorporateCanadaUSD
Aris Mining Holdings Corp.CorporateCanadaUSD
Aris Mining (Panama) Marmato Inc.CorporatePanamaUSD
Aris Mining Segovia
Segovia OperationsColombiaCOP
Aris Mining Marmato
Marmato MineColombiaCOP
Minerales Andinos de Occidente, S.A.S.
Marmato Zona AltaColombiaCOP
Minera Croesus S.A.S.
Marmato Zona AltaColombiaCOP
MIC Global Mining Ventures S.L.
Soto Norte ProjectSpainUSD
ETK Inc.
Toroparu ProjectGuyanaUSD
(1)“USD” = U.S. dollar; “COP” = Colombian peso.
Schedule of Measurement of Financial Assets and Liabilities
The Company has assessed the classification and measurement of its financial assets and financial liabilities as follows:


Classification category
Cash and cash equivalents
Amortized cost
Trade and other receivables
Amortized cost
Cash in trust
Amortized cost
Other long-term receivables
Amortized cost
Accounts payable and accrued liabilities
Amortized cost
Soto Norte deferred consideration
Amortized cost
DSU liability
FVTPL
PSU liability
FVTPL
Gold Notes
FVTPL
Warrant liabilities
FVTPL
Embedded derivative asset in Senior Notes
FVTPL
Convertible Debentures
FVTPL
Investments and other assets
FVTPL
Other long-term assets
FVTPL
Schedule of Investments in Associates
The Company conducts a portion of its business through investments in joint arrangements and associates.
AssociateLocationOwnership InterestClassification and
accounting method		Mining properties
Seasif Exploration Inc (“Seasif Exploration“)
Canada24.3 %Associate; equity methodMeadowbank Project
Percentage of
ownership		Common
shares		December 31,
2024		December 31,
2023
Soto Norte (a)— %— $— $108,527 
Seasif Exploration (previously Western Atlas) (c)24.3 %29,910,588180 253 
Total$180 $108,780 

The income (loss) from investments in associates during the years ended December 31, 2024 and 2023 comprises:

Year-ended December 31,
20242023
Soto Norte (a)$(2,811)$2,650 
Denarius (b)— (2,463)
Seasif Exploration (previously Western Atlas) (c)(73)(128)
Total$(2,884)$59 
The following table summarizes the change in the carrying amount of the Company’s investment in Soto Norte:
Amount
Investment in associate as of December 31, 2022$100,772 
Company’s share of the income from the associate2,650 
Cash contributions to Soto Norte5,105 
Investment in associate as of December 31, 2023108,527 
Company’s share of the loss from the associate(2,811)
Cash contributions to Soto Norte2,647 
Reclassification of investment (Note 5)(108,363)
Investment in associate as of December 31, 2024$— 
Amount
As at December 31, 2022$51,504 
Interest expense2,246 
Repayment(50,000)
Interest paid(3,750)
As at December 31, 2023$— 
Summarized financial information for the Soto Norte Project during the period in which the Company exercised significant influence, on a 100% basis and reflecting adjustments made by the Company, including fair value adjustments made at the time of acquisition and adjustments for differences in accounting policies, is as follows:

Year-ended December 31,
20242023
Project expenses(13,022)(10,173)
Net (loss) income and comprehensive (loss) income of associate(14,054)13,251 
Company’s equity share of the net (loss) income and comprehensive (loss) income of associate – 20%
$(2,811)$2,650 
The following table summarizes the change in the carrying amount of the Company’s investment in Denarius:

 Common shares
Warrants
  Total
As of December 31, 2022$11,960 $409 $12,369 
Additions1,122 — 1,122 
Company’s share of the loss from the associate(783)— (783)
Equity share of other comprehensive loss600 — 600 
Loss on dilution(1,680)— (1,680)
Loss on derecognition(8,142)— (8,142)
Reclassification of investment(3,077)(409)(3,486)
Investment in Denarius as at December 31, 2023$— $— $— 
Common sharesWarrantsConvertible DebentureTotal
Reclassification of investment$3,077 $409 $— $3,486 
Purchase of Denarius Debenture— — 3,603 3,603 
Change in fair value 919 (160)1,908 2,667 
Other financial asset as at December 31, 2023$3,996 $249 $5,511 $9,756 
Change in fair value895 (98)2,071 2,868 
Other financial asset as at December 31, 2024$4,891 $151 $7,582 $12,624 
The following table summarizes the change in the carrying amount of the Company’s investment in Seasif Exploration:

Amount
As of December 31, 2022$381 
Company’s share of the loss from the associate(128)
As of December 31, 2023$253 
Company’s share of the loss from the associate(73)
Investment in Seasif Exploration as of December 31, 2024$180 
Schedule of Plant and Equipment Useful Life
Depreciation of plant and equipment and other assets is calculated using the straight-line method to allocate their cost to their residual values over the shorter of the life of mine or their estimated useful lives, as follows:
Machinery and equipment
10 years
Transportation equipment
5 years
Office and other equipment
4 to 10 years
Buildings and improvements
20 years
Schedule of Disclosure of Accounting Standard Updates Adjustments
As at December 31, 2023As at January 1, 2023
As previously disclosedAdjustmentAdjusted balancesAs previously disclosedAdjustmentAdjusted balances
Current portion of long-term debt$36,826 $— $36,826 $15,525 $13,181 $28,706 
Current portion of warrant liabilities15,625 10,981 26,606 — 21,794 21,794 
Long-term debt341,005 — 341,005 362,909 (13,181)349,728 
Warrant liabilities10,981 (10,981)— 21,794 (21,794)—