Exhibit 99.55

CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS 

FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2025 

(Unaudited)

(Expressed in thousands of United States Dollars)

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

CONDENSED CONSOLIDATED INTERIM STATEMENTS OF FINANCIAL POSITION

(Expressed in thousands of United States dollars)

See note 1 - Nature of Operations and Going Concern

Approved on November 13, 2025 on behalf of the Board of Directors:

The accompanying notes are an integral part of these condensed consolidated interim financial statements.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

CONDENSED CONSOLIDATED INTERIM STATEMENTS OF LOSS AND COMPREHENSIVE LOSS

(Expressed in thousands of United States dollars, except for shares and per share amounts)

The accompanying notes are an integral part of these condensed consolidated interim financial statements

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CASH FLOWS

(Expressed in thousands of United States dollars, except for shares and per share amounts)

The accompanying notes are an integral part of these condensed consolidated interim financial statements.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CHANGES IN EQUITY

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025 AND 2024

(Expressed in thousands of United States dollars, except for shares and per share amounts)

The accompanying notes are an integral part of these condensed consolidated interim financial statements.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

Gunnison Copper Corp. (formerly Excelsior Mining Corp.) (“Gunnison” or the “Company”) was incorporated under the laws of the Province of British Columbia, Canada on June 9, 2005 and trades on the Toronto Stock Exchange under the symbol “GCU”. The address of the Company’s registered office is Suite 2400, 1055 West Georgia Street, Vancouver, BC, Canada V6E 3P3.

The principal business of Gunnison is the acquisition, exploration and development of copper mineral properties and the construction and operation of copper mines in Arizona, USA. The Company is focused on the development of the Gunnison Copper Project which is designed to be a large-scale open pit operation producing finished copper cathodes. In addition, Gunnison is also undertaking leachpad construction to allow for the expansion and restart of the Johnson Camp Mine (“JCM”) in partnership with Nuton LLC (“Nuton”), a Rio Tinto Venture, to demonstrate the use of its sulfide copper heap leaching technology (“Nuton Technologies”). Cash flow generated from the Johnson Camp Mine, after payback of construction and start-up costs, will be used to support the development of the Gunnison project.

Going concern

These consolidated interim financial statements have been prepared on a going-concern basis, which assumes that the Company will be able to realize its assets and liabilities in the normal course of business as they come due in the foreseeable future.

During the nine month period ended September 30, 2025, the Company incurred a net loss of $46,782 that included a non-cash loss on the Triple Flag stream derivative of $24,532. At September 30, 2025, the Company had negative working capital (current assets less current liabilities) of ($81,218) including a cash and cash equivalents balance of $22,757. The working capital includes $71,755 in current liabilities that are funded by Nuton or are deferred revenues that will be settled by the Company by providing mining and processing services to Nuton. The net amount funded by Nuton is only repayable from the sale of copper produced at the Johnson Camp Mine. In addition, working capital includes $7,051 in current liabilities that represents the value of JCM copper deliverable to Triple Flag under the stream agreement. If no copper was produced at the Johnson Camp Mine, the amount deliverable to Triple Flag would also not be payable by the Company. As a result, neither the Nuton nor Triple Flag related working capital amounts can impact the Company’s immediate ability to continue as a going concern. Finally, the Nebari debt of $13,612 and the convertible debentures of $6,178, mature June 30, 2026 and September 30, 2026 respectively (refer to Note 11). Subsequent to the balance sheet date $1,000 in Nebari debt was converted into common shares, reducing the outstanding amount to $12,612 and the Company raised an additional $9,482 (CAD$13,262) via a non-brokered private placement (Note 21).

Pursuant to the Stream Agreement, the Company is required to maintain a leverage ratio of 3.5:1.0. The leverage ratio is calculated as the ratio of indebtedness of the Company to net income (adjusted for certain items). On November 30, 2023, the Company and Triple Flag executed an amendment to the Stream Agreement which suspends the applicability of the leverage until September 30, 2026 (the “Leverage Ratio Grace Period”) to accommodate the extension of the Nebari loan due date.

Nuton and Gunnison will work within the parameters of the Tax Partnership Agreement to potentially allow for a portion of realized cash proceeds from the sale of 48C tax credits to be distributed to Gunnison to retire a significant portion, or all of, the Nebari debt. The receipt of the 48C tax credit is subject to Certification as outlined in IRS Notice 2023-44. There is no certainty that the conditions to the receipt of the 48C tax credit will be satisfied.

While the Company’s current cash flow projections indicate the Company has sufficient cash to fully retire the Nebari debt prior to its maturity date in June 2026, the Company does not currently have sufficient cash to settle the outstanding debentures in cash and fund ongoing operations without the continued support from Nuton or additional equity financing. These conditions represent a material uncertainty that may cast significant doubt about the Company’s ability to continue as a going concern.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

The Company has been successful in obtaining significant equity and other financings since inception and intends to continue financing its future requirements through future mining of the existing JCM pits, equity financing, and the funding provided by Nuton. However, there can be no assurance that the Company will be able to obtain the necessary financing. The Condensed Consolidated Interim Financial Statements do not give effect to adjustments that would be necessary should the Company be unable to continue as a going concern. These adjustments could be material.

The Company prepares the annual consolidated financial statements in accordance with International Financial Reporting Accounting Standards as issued by the International Accounting Standards Board (“IFRS Accounting Standards”). These condensed consolidated interim financial statements have been prepared in accordance with International Accounting Standard 34, Interim Financial Reporting.

These condensed consolidated interim financial statements do not include all the information and note disclosures required by IFRS Accounting Standards for annual financial statements and should be read in conjunction with the annual consolidated financial statements for the year ended December 31, 2024.

The accounting policies applied in the preparation of these condensed interim consolidated financial statements are consistent with those applied and disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2024 except for:

Inventory

Inventories are recorded at the lower of cost and net realizable value (NRV). The average COMEX price for Grade A copper cathode for the reporting month is used to determine the NRV of copper cathode in inventory. The copper cathode held as finished goods at month end is shipped and sold the following month.

Stockpiled ore represents unprocessed ore that has been mined and is available for future processing. Stockpiled ore is measured by estimating the number of tons through physical surveys and contained copper through grade reconciliation via the ore control process.

Heap leach ore inventory represents estimated copper contained in ore that has been placed on the heap leach pad for acid irrigation. When ore is placed on the heap leach pad, an estimate of recoverable pounds is made based on tonnage, grade and estimated recoveries of the ore that was placed on the heap leach pad. The estimated recoverable pounds on the heap leach pad are used to determine inventory cost. The estimated recoverable pounds carried on the heap leach pad are adjusted based on actual recoveries being experienced. Actual and estimated recoveries are measured to the extent possible, using various indicators including but not limited to, leach curve recoveries, assay tests and current trends in the level of pounds carried on the pad.

In-process copper inventory represents copper in solution that is contained within the processing ponds and plant at period end and is currently being converted to copper cathode, the final saleable product. The amount of copper in solution is determined by assay values.

Finished goods inventory is copper cathode that has not yet been sold to the offtaker. Materials and supplies inventories are valued at the lower of weighted average cost and net realizable value, less any allowances for obsolescence. Replacement costs of materials and spare parts are generally used as the best estimate of net realizable value.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

Revenue

The Company’s revenue mainly consists of the sales of copper cathode. The Company follows IFRS 15 - Revenue from Contracts with Customers (“IFRS 15”) to recognize revenue. IFRS 15 establishes a single five-step model framework for determining the nature, amount, timing and uncertainty of revenue and cash flows arising from a contract with a customer. IFRS 15 requires entities to recognize revenue when ‘control’ of goods or services transfers to the customer.

Copper cathode revenue is recognized when control is transferred to the customer. The transfer of control occurs when the copper cathode has been assayed, readied for shipment and the title and risk have passed from the seller to the buyer, upon the delivery of copper cathode to an agreed upon delivery point.

Deferred revenue is recognized as the performance obligation is satisfied under the Nuton Stage 2 Operating Agreement. The performance obligation represents the Company’s obligation to provide mining and processing services. The deferred mine processing service revenue is recognized based on units of production over the expected life of the Nuton Stage 2 Project.

All dollar figures are expressed in United States dollars unless otherwise indicated. Canadian dollars are expressed as “CAD$”.

The preparation of the condensed consolidated financial statements in conformity with IFRS Accounting Standards requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, shareholders’ equity, and the disclosure of contingent assets and liabilities, as at the date of the financial statements, and expenses for the periods reported. A summary of the Company’s critical estimates and judgments is provided in Note 2, Basis of Presentation and Summary of Material Accounting Policies, of the audited consolidated financial statements for the year ended December 31, 2024 and 2023 except for:

Inventory

Management applies significant judgment in developing the cost and NRV of stockpiled ore, copper in solution and heap leach inventory, including assumptions related to estimated recoverable pounds of copper within stockpiled ore and copper in solution inventory, the estimated forecasted copper price per pound, estimated costs of completion and selling expenses.

Revenue

The determination that mining and processing services in relation to the Nuton Stage 2 project are a significant component of the Company’s operation was based on management’s judgement. As a result, management has included this in revenues.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

The summary for inventory as at September 30, 2025, and December 31, 2024 are summarized below.

During the period ended September 30, 2025, the Company recognized a non-cash write-down of inventory to net realizable value of $4,377 for stockpiled ore, copper in solution and finished goods. This write-down is due to higher costs of initial mining and conversion. The write-down is reflected as an increase in cost of goods sold and a reduction in the carrying value of inventory on the balance sheet. The total write-down amount was $5,148, three months ended September 30, 2025 – $4,876.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

As of September 30, 2025, the Company has restricted cash deposits of $10,637 (December 31, 2024 - $10,333) as collateral to secure the issuance of reclamation bonds.

Accounts payable and accrued liabilities include the Company’s current and non-current obligations to suppliers of goods or services acquired on trade credit for goods received or services provided that have been invoiced but not yet paid, not relating to the JCM Mine and Nuton Stage 2 work program. Due to Nuton of $2,154 is for cash and interest earned on collateral paid by Nuton for Gunnison Copper Project environmental bonding.

Accounts payable and accrued liabilities include the Company’s current and non-current obligations to suppliers of goods or services acquired on trade credit for goods received or services provided that have been invoiced but not yet paid, which relate to the JCM Mine operations and Nuton Stage 2 work program.

Johnson Camp Mine – Stage 2

Infrastructure Payment

On May 15, 2024, Nuton elected to proceed to Stage 2 of the existing option agreement. Nuton made a non-refundable $5,000 payment to the Company for the non-exclusive access to existing infrastructure at the Johnson Camp mine for the Stage 2 work program. Nuton is also responsible for funding all of Gunnison’s costs associated with Stage 2. The full Stage 2 work program is anticipated to take up to 73 months, and, if successful, will demonstrate key elements of the Nuton technologies at industrial scale. Stage 2 includes construction of the leachpad and related infrastructure, mining and heap leach processing, refurbishment of the SX/EW plant, and production of finished copper cathode. Nuton, in its sole and absolute discretion may elect to terminate the Option Agreement by providing appropriate notice to the Company in accordance with the terms of the Option Agreement.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

The Company has accounted for the $5,000 as deferred income and will amortize the amount over the 73 months anticipated for the Stage 2 program on a straight-line basis. During the period, the Company recognized income of $205, relating to the amortization of the $5,000 infrastructure access payment received.

Stage 2 Funding

The Company also receives from Nuton quarterly pre-payments based on the approved work program budget for Stage 2. Each time Stage 2 proceeds are received as advances or additional attributable costs are incurred by Nuton directly (Nuton managed costs), a Stage 2 project payable is recognized at fair value, with a residual amount allocable to deferred mine processing service revenue (representing the estimated selling price, including margin for mine processing services relating to the demonstration of Nuton’s technology). The borrowing is subsequently accounted for at fair value through profit and loss. The deferred mine processing service revenue is amortized over the expected payback schedule, based on units of production. Stage 2 construction costs are capitalized to construction in progress and subsequently transferred to the relevant property, plant and equipment category once assets are ready for their intended use. Prior to the amendment effective September 30, 2025 discussed below, Nuton received 100% of the net revenue generated from commercial quantities of copper products produced from JCM as a result of the Stage 2 work program, until recoupment of the Stage 2 work program funding (subject only to payments by the Company owing under any existing royalty or streaming obligations). Once and if the Stage 2 work program funding is repaid, the Company retains any additional copper revenue. The assumptions used in the measurement of the liability are the Johnson Camp Mine life of mine production profile for Stage 2 and the discount rate.

Management and Nuton have agreed that Nuton will fund agreed upon direct and indirect costs of the Company for the Stage 2 Work Program pursuant to an approved by Nuton budget from May 15, 2024 for the duration of the Stage 2 Work Program. This has resulted in a decrease in the general and administrative costs of the company when compared to prior periods.

During the nine months ended September 30, 2025, $123,720 in Stage 2 funding was received. Of these amounts received, $95,007 million was recognized to the Nuton Stage 2 Payable and the residual balance of $28,713 million was allocated to deferred revenue. Management determined the fair value of the Stage 2 project payable at the time of receipt using a discount rate of 17%. Nuton controlled costs of $12,155 were incurred by Nuton for offsite development and assembly of specialized equipment that will be installed at Johnson Camp Mine. The Nuton controlled costs are also recoverable under the terms of the Stage 2 Work Program.

As of September 30, 2025, $1,091 has been recognized on a units of production basis in revenue, representing the value of the mining and processing services provided by the Company to Nuton. For the nine months ended September 30, 2025, a fair value loss was recognized through profit and loss of $9,889 based on the revaluation of the Nuton Stage 2 Payable to fair value at September 30, 2025 ($5,153 for the six months ended June 30, 2025).

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

Effective September 30, 2025 the Company and Nuton signed an amendment to the Operating Agreement which changed the timing of Stage 2 Work Program funding from a gross to net basis.

While Nuton continues to fund 100% of the agreed direct and indirect costs for the Stage 2 Work Program (subject to their election to continue the program), under the revised net funding mechanism, the Company holds and uses 100% of the copper revenue generated (subject only to payments by the Company owing under any existing royalty or streaming obligations) to reduce the agreed upon expenditures on a quarterly basis. In the event expenditures are less than the net copper revenues, the Company is required to repay those amounts on quarterly basis. The timing of these estimated repayments form the basis of measurement of the Nuton Stage 2 Payable subsequent to the contract amendment on Sept 30, 2025. The assumptions used in the measurement of the liability continue to be the Johnson Camp Mine life of mine production profile for Stage 2 and the discount rate.

Management of the Company evaluated the terms of the amendment and determined it to be substantial modification of the existing Operating Agreement and therefore accounted for the change in terms as an extinguishment of the original liabilities and recognition of new financial liabilities. This amendment resulted in a reduction of the fair value of the Nuton Stage 2 payable of $110,237, as a result of the change in timing of cashflows which are now measured based on the net profitability of the Stage 2 Work Program, rather than based on expected total net revenues. The effects of the substantial modification have been allocated to deferred revenue, on the basis of the Company updating the variable cost of operating the Stage 2 Work Program and providing ongoing mining and processing services to Nuton.

GUNNISON COPPER CORP. (Formerly Excelsior Mining Corp.)

NOTES TO THE CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025

(Expressed in thousands of United States dollars)

Gunnison Sulfide Viability – Stage 1

On March 13, 2025, the Company received $3,000 from Nuton for a Stage 1 viability testing program of Nuton Technologies on sulfide mineralization at the Stage 1 Gunnison Program. The Stage 1 Gunnison Program will involve the collection and testing of samples from drill core from the Gunnison Copper Project. The samples will be analyzed by Nuton for the purpose of determining the suitability of the Gunnison Copper Project with Nuton Technologies.

The Company has accounted for the $3,000 as deferred income and will amortize the amount over the 22 months anticipated for the Stage 1 program on a straight-line basis. During the period, the Company recognized income of $939, relating to the amortization of the $3,000 payment received.