The Company incurred a net loss of $17,405 for the year ended June 30, 2025 (2024 - $11,435) and had an accumulated deficit of $179,317 as of June 30, 2025. As a development stage issuer, the Company has not yet commenced its mining operations and accordingly does not generate any revenue. The Company does not have sufficient cash on hand to fund planned operations as well as the construction necessary for mine development for the next twelve months. The Company is dependent on its ability to raise capital to fund future exploration and working capital requirements. These conditions and events raise substantial doubt about the Company’s ability to continue as a going concern.

In response to these conditions and events, the Company plans to obtain additional financing. As discussed in Note 17, on July 18, 2025, the Company closed a public offering which resulted in net proceeds of approximately $41,762 after deducting placement agent fees and discounts. Subject to the conditions discussed in Note 10a, NioCorp expects to have access to up to $46,917 in net proceeds from the Standby Equity Purchase Agreement, dated January 26, 2023 (the “Yorkville Equity Facility Financing Agreement”), between the Company and YA II PN, Ltd., an investment fund managed by Yorkville Advisors Global, LP (“Yorkville”), through April 1, 2026. In addition, the Company may pursue additional sources of financing, and while it has been successful in doing so in the past, there can be no assurance it will be able to do so in the future. Other than the potential issuance of Common Shares under the Yorkville Equity Facility Financing Agreement, the Company did not have any further funding commitments or arrangements

for additional financing as of June 30, 2025. The Company’s plans to obtain additional financing have not been finalized, are subject to market conditions, and are not within the Company’s control and therefore cannot be deemed probable. Further, the Company will be required to raise additional funds for the construction and commencement of operations. As a result, the Company has concluded that management’s plans do not alleviate substantial doubt about the Company’s ability to continue as a going concern.