Altius Minerals Corporation (TSX: ALS) (OTCQX: ATUSF) (“Altius”) is pleased to update its Project Generation (“PG”) business activities and its public junior equities portfolio.

The market value of equities in the portfolio at December 31, 2025 was $49.3 million, compared to $44.0 million at September 30, 2025. Net portfolio investment of approximately $1.3 million was completed during the quarter.

Altius participated in the financing of new private company Centauri Minerals, added to its position in Perseverance Metals Inc. (TSX:V:PMI) and received shares of Altitude Minerals Ltd (ASX: ATT) as consideration for the previously announced vending of the Firenze gold project in Nevada. Altius has retained a 1.5% NSR royalty on the Firenze project, subject to a 0.5% buydown right. Altius also received shares in Eminent Gold Corp. (TSX-V: EMNT) related to a prior period sale of the Celts project. Both the Firenze and Celts projects were generated from Altius’s ongoing exploration alliance with Orogen Royalties Inc. (TSX-V: OGN).

An updated list of the public equity holdings on which we hold royalties has been posted to the Altius website at https://altiusminerals.com/investor-information/junior-equities-portfolio/.

Portfolio Highlights

Altius anticipates another busy exploration year on projects where it has a royalty interest and/or significant equity position in the operator, with more than 75,000 metres of planned, discovery-oriented drilling announced by its various portfolio companies. This is in addition to significant amounts of planned drilling at operating and development stage royalty projects.

As part of its project generation investment mandate, Altius continues to evaluate potential exploration alliances and junior equity investment opportunities that support royalty creation across multiple jurisdictions.

Qualified Person

Lawrence Winter, Ph.D., P.Geo., Vice President, Generative and Technical for Altius, a Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects, is responsible for the scientific and technical data presented herein and has reviewed, prepared and approved this release.

About Altius

Altius’s strategy is to create per share growth through a diversified portfolio of royalty assets that relate to long life, high margin operations. This strategy further provides shareholders with exposures that are well aligned with sustainability-related global growth trends including the electricity generation transition from fossil fuel to renewables, transportation electrification, reduced emissions from steelmaking and increasing agricultural yield requirements. These macro-trends each hold the potential to cause increased demand for many of Altius’s commodity exposures including copper, renewable based electricity, several key battery metals (lithium, nickel and cobalt), clean iron ore, and potash. In addition, Altius runs a successful Project Generation business that originates mineral projects for sale to developers in exchange for equity positions and royalties. Altius has 46,285,577 common shares issued and outstanding that are listed on Canada’s Toronto Stock Exchange. It is a member of both the S&P/TSX Small Cap and S&P/TSX Global Mining Indices.

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