Mr. Farshad Shirvani reports

DOUBLEVIEW GOLD CORP. ANNOUNCES FILING OF PRELIMINARY ECONOMIC ASSESSMENT TECHNICAL REPORT FOR THE HAT PROJECT

Doubleview Gold Corp. has filed the independent National Instrument 43-101 technical report, entitled "Preliminary Economic Assessment of the Hat Polymetallic Project, British Columbia, Canada," on SEDAR+. The report can also be viewed on the company's website. The technical report supports the positive preliminary economic assessment (PEA) results for the company's 100-per-cent-owned Hat polymetallic porphyry project, located in northwestern British Columbia, as announced on March 2, 2026, and clarified on March 23, 2026.

The PEA demonstrates robust project economics for the Hat project, including:

NPV (net present value):

• After-tax NPV (5 per cent) of $6.73-billion and IRR (internal rate of return) of 23 per cent at consensus metal prices;
• After-tax NPV (5 per cent) of $13.53-billion and IRR of 39 per cent at spot metal prices.

NPV including scandium and the associated processing circuit:

• After-tax NPV (5 per cent) of $7.27-billion and IRR of 19 per cent at consensus metal prices;
• After-tax NPV (5 per cent) of $14.85-billion and IRR of 32 per cent at spot metal prices.

Three processing scenarios were evaluated -- scenario A1 (A1) a Cu-Au-Ag-Co (copper-gold-silver-cobalt) flotation base case using current testwork recoveries; scenario A2 (A2), the same base case using expected recoveries; and scenario B (B), a Cu-Au-Ag-Co flowsheet with an added hydrometallurgical circuit and scandium recovery circuit, with results indicating the project is financially attractive even without the scandium component.

Highlights:

• Robust project economics: The PEA demonstrates a high-margin operation with an after-tax NPV (5 per cent) of $4.96-billion (A1), $6.73-billion (A2) or $7.27-billion (B), and an IRR of 19 per cent (A1), 23 per cent (A2) or 19 per cent (B) at analyst consensus metal prices. Using a spot price scenario, the project delivers a compelling after-tax NPV (5 per cent) of $11.05-billion (A1), 13.53-billion (A2) or $14.85-billion (B), and an IRR of 34 per cent (A1), 39 per cent (A2) or 32 per cent (B).
• Sensitivity highlight: Project economics show the greatest leverage to overall metal prices, with NPV (5 per cent) ranging from $3.2-billion to $10.2-billion (IRR: 14 per cent to 32 per cent) at plus or minus 20 per cent on all metals; even under additional plus-20-per-cent capex and plus-20-per-cent opex sensitivities, applied on top of a 25-per-cent contingency already embedded in the base case, all scenarios deliver IRRs of 16 per cent or better, and scenario B provides additional scandium oxide upside with NPV (5 per cent) of $6.5-billion to $8.1-billion (IRR: 18 per cent to 20 per cent) at plus or minus 40 per cent metal price.
• Scale and longevity: The mine plan supports a multidecade life of 25 years at a 120,000-tonne-per-day processing rate, underpinned by a resource base of 609 million tonnes (t) at 0.43 per cent copper equivalent (CuEq) in the measured and indicated categories, and 503 million t at 0.41 per cent CuEq in the inferred category.
• High-output production profile B: Envisioned as a conventional large-scale open-pit operation, the project is expected to produce an average of over 74,000 t of copper, 254,000 ounces (oz) of gold, 376,000 oz of silver and 2,700 t of cobalt annually during the first 10 years, with life-of-mine (LOM) average production of 67,600 t Cu, 217,000 oz Au, 348,000 oz Ag, 2,500 t Co and 128 tonnes of scandium oxide per year (Based on publicly reported 2024 North American cobalt mine production of approximately 3,800 to 4,000 tonnes (Natural Resources Canada; U.S. Geological Survey), the projected cobalt output is estimated to represent approximately 69 per cent of current regional mined supply.).
• Strategic importance for critical minerals: The project is positioned as a primary North American source of copper, scandium and cobalt. With approximately 2.42 billion pounds of copper, 80 million pounds of cobalt and 2,415 tonnes of scandium oxide contained in the measured and indicated categories, the project represents an important discovery of critical minerals.
• Stable, supportive jurisdiction: Located in a premier mining district in British Columbia, the project benefits from a stable regulatory environment. The company is committed to engaging with local first nations in a respectful manner and to working toward positive and constructive relationships as the project advances.
• Catalyst for development: The PEA serves as the technical foundation for an immediate transition into a prefeasibility study (PFS), providing a clear road map for early works and permitting activities in 2026 and 2027.

Farshad Shirvani, president and chief executive officer of Doubleview Gold, commented: "The filing of the full PEA technical report solidifies the robust economics outlined in March. With an after-tax NPV (5 per cent) reaching up to $7.27-billion at consensus prices and up to $14.85-billion at spot prices, we believe the Hat project is emerging as a Tier 1 asset. It is a large-scale, long-life polymetallic opportunity in a premier jurisdiction with strong exposure to critical metals, including copper, scandium and cobalt. We look forward to advancing this strategic asset toward prefeasibility while continuing to unlock value from its copper, gold, scandium and cobalt potential."

The company cautions that the PEA is preliminary in nature and includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves. There is no certainty that the PEA will be realized. Mineral resources that are not mineral reserves do not have demonstrated economic viability.

Qualified persons

The technical report was prepared in accordance with National Instrument 43-101, Standards of Disclosure for Mineral Projects. The scientific and technical information contained in this news release has been reviewed and approved by the following qualified persons, each responsible for their respective areas of the technical report:

• Tomasz Wawruch, geology and mineral resource estimate;
• Shervin Teymouri, mining engineering, capital and operating cost estimates, financial analysis;
• Andrew Carter, metallurgical testwork, recovery assumptions and process metallurgy;
• Andre de Ruijter, process design, plant engineering, and process capital and operating costs;
• Franky Li, tailings management and tailings storage facility design;
• Jayesh Rami, site infrastructure, civil works, access roads and supporting facilities.

Doubleview acknowledges that the project is located on the traditional territories of the Tahltan Nation and the Taku River Tlingit First Nation, and recognizes their enduring relationship to and stewardship of the land and waters. Doubleview is committed to respectful, transparent and continuing engagement with first nations and local communities whose territories overlap the project area and access routes, with a focus on protecting water and the environment and advancing responsible development.

Readers are encouraged to review the full technical report on the company's website and on SEDAR+ for complete details, assumptions, risks, sensitivities and qualifications.

About Doubleview Gold Corp.

Doubleview Gold, a mineral resource exploration and development company based in Vancouver, B.C., Canada, is publicly traded on the TSX Venture Exchange, the OTCQB, the Berlin Stock Exchange and the Frankfurt Stock Exchange. Doubleview identifies, acquires and finances precious and base metal exploration projects in North America, particularly in British Columbia. The company increases shareholder value through the acquisition and exploration of quality gold, copper, cobalt, scandium and silver properties -- collectively critical minerals -- and through the application of advanced, state-of-the-art exploration methods. Doubleview's portfolio of strategic properties provides diversification and mitigates investment risk.

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