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Denison Mines Reports 24% Completion at Phoenix Uranium Mine

Summarized from Earnings

Denison Mines reached 24% total completion at its Phoenix ISR uranium project after one full quarter of large-scale construction activity.

Denison Mines Reports 24% Completion at Phoenix Uranium Mine

Denison Mines Corp. disclosed its third-quarter 2026 financial and operational results on Tuesday, highlighting significant early progress at its Phoenix in-situ recovery uranium mine in Canada. The Toronto-based company, which trades on both the TSX and NYSE American exchanges, said the project reached 24% total completion following the first full quarter of full-scale construction.

The Phoenix ISR project represents a critical milestone for Denison as it advances toward becoming a uranium producer. In-situ recovery mining, which extracts uranium by circulating a solution through an underground ore body, is considered a lower-cost and lower-disturbance method compared with conventional open-pit or underground mining approaches.

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The quarterly update accompanied the company's filing of its Condensed Consolidated Financial Statements and Management's Discussion and Analysis covering both the three-month and nine-month periods ended September 30, 2026. The filings provide investors with a detailed look at construction spending, operational timelines, and the company's broader portfolio of uranium assets in the Athabasca Basin region of Saskatchewan.

Denison's progress comes amid sustained institutional and market interest in uranium, driven by growing demand for nuclear energy as governments and utilities pursue low-carbon power generation strategies. The Phoenix project's advancement positions Denison among a narrow group of junior uranium developers actively moving toward production-stage operations.

Continue reading at Earnings for the full financial statements and MD&A disclosures.

Frequently Asked Questions

Q.What is the Phoenix ISR uranium mine?

The Phoenix ISR project is Denison Mines' in-situ recovery uranium mine currently under full-scale construction. In-situ recovery extracts uranium by circulating a solution through an underground ore body.

Q.How far along is construction at the Phoenix uranium mine?

As of the end of Q3 2026, the Phoenix mine had reached 24% total completion, achieved after the first full quarter of full-scale construction activity.

Q.Where is Denison Mines listed and where is it based?

Denison Mines Corp. is headquartered in Toronto and trades on both the Toronto Stock Exchange under the symbol DML and the NYSE American exchange under the symbol DNN.

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