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DENISON MINES CORP.

For the period ended Dec 31, 2023. Filed Mar 28, 2024.

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About this filing

The yearly report of certain Canadian companies, filed under a joint US and Canadian system. It is the main yearly account these companies give US investors, largely as filed in Canada.

FY2023 · Filed Mar 28, 2024

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DNN$2.19+6.3%Stored close · as of Nov 6, 2026
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Contents

EX-99.1 · Athabasca Exploration: Sampling, Analysis and Data Verification

Athabasca Exploration: Sampling, Analysis and Data Verification

Unless otherwise specifically disclosed herein, the following describes the procedures and protocols for all Athabasca exploration programs operated by Denison in reference to drill hole surveying, downhole radiometric surveying, core logging, core sampling, sample preparation methods, analytical procedures, Quality Assurance and Quality Control (“QAQC”) and data verification. For Sampling, Analysis and Data Verification procedures employed by other operators, past or present, on projects in which Denison holds an ownership interest, refer to those project sections within the AIF, specifically for McClean Lake, Midwest and Waterbury Lake.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.