NexMetals Mining Corp.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and

Shareholders of NexMetals Mining Corp.

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of NexMetals Mining Corp. (Formerly Premium Resources Ltd.) (the “Company”) as at December 31, 2025 and 2024, and the related consolidated statements of operations and comprehensive loss, changes in shareholders’ equity (deficiency), and cash flows for each of the years in the two-year period ended December 31, 2025, and the related notes (collectively referred to as the “consolidated financial statements”).

In our opinion, the consolidated financial statements present fairly, in all material respects, the consolidated financial position of the Company as at December 31, 2025 and 2024, and the results of its consolidated operations and its consolidated cash flows for each of the years in the two-year period ended December 31, 2025 in conformity with accounting principles generally accepted in the United States of America.

Material Uncertainty Related to Going Concern

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the consolidated financial statements, the Company has incurred recurring net losses and has not generated profitable operations from its resource activities. Which raises substantial doubt about its ability to continue as a going concern. Management’s plans in regard to these matters are also described in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Going Concern

Critical Audit Matter Description

As described in Note 1, the Company, being in the exploration stage, is subject to risks and challenges similar to companies in a comparable stage. These risks include the challenges of securing adequate capital for exploration and operational risks inherent in the mining industry, and global economic and metal price volatility and there is no assurance management will be successful in its endeavors. The ability of the Company to continue operations as a going concern is ultimately dependent upon achieving profitable operations and its ability to obtain adequate financing. To date, the Company has not generated profitable operations from its resource activities and will need to invest additional funds in carrying out its planned exploration and operational activities. Management has prepared future cash flow forecasts, which involves judgement and estimation of key variables, such as planned financing and capital and operational expenditures. Future economic conditions and effects of key events subsequent to the year end, such as debt and equity financing, also impacted management’s judgements and estimates. We identified the Company’s ability to continue as a going concern as a critical audit matter because auditing the Company’s going concern assessment is complex and involves a high degree of auditor judgment to assess the reasonableness of the cash flow forecasts, planned refinancing actions and other assumptions used in the Company’s going concern analysis. The Company’s ability to execute the planned refinancing actions are especially judgmental given that the global financial markets and economic conditions have been, volatile. This matter is also described in the “Material Uncertainty Related to Going Concern” section of our report.

Audit Response

We responded to this matter by performing procedures over management’s assessment of the Company’s ability to continue as a going concern. Our audit work in relation to this included, but was not restricted to, the following:

Valuation of the units issued for debt settlement

Critical Audit Matter Description

As described in Note 10, on March 18, 2025, the Company closed the debt settlement through the issuance of units in full satisfaction of the term loan previously advanced by the Company. Each settlement unit consists of one common share of the Company and one common share purchase warrant of the Company. The units had a four month hold period and the common share purchase warrants included an acceleration feature. It required management judgements and estimates to fair value the units. We identified the valuation of the units issued for debt settlement as a critical audit matter because auditing the fair value of the units is complex and involves a high degree of auditor judgment.

Audit Response

We responded to this matter by performing audit procedures over the valuation of the units issued for debt settlement. Our audit work in relation to this included, but was not restricted to, the following:

We have served as the Company’s auditor since 2022.

Chartered Professional Accountants

Licensed Public Accountants

Ottawa, Canada

March 13, 2026

PCAOB ID: 1930