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INTEREST IN OTHER ENTITIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Interest In Other Entities |
Significant subsidiaries, associates and joint operations |
|  |  |  | December |  | December |  | Fiscal |  |
|  | Place |  | 31, 2020 |  | 31, 2019 |  | 2020 |  |
|  | Of |  | Ownership |  | Ownership |  | Participating |  | Accounting
|  | Business |  | Interest (1) |  | Interest (1) |  | Interest (2) |  | Method
Subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denison Mines Inc. |  |  | Canada |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | N/A |  |  |  | Consolidation |
Denison AB Holdings Corp. |  |  | Canada |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | N/A |  |  |  | Consolidation |
Denison Waterbury Corp |  |  | Canada |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | N/A |  |  |  | Consolidation |
9373721 Canada Inc. |  |  | Canada |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | N/A |  |  |  | Consolidation |
Denison Mines (Bermuda) I Ltd |  |  | Bermuda |  |  |  | 100.00 | % |  |  | 100.00 | % |  |  | N/A |  |  |  | Consolidation |
Joint Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Waterbury Lake Uranium Corp |  |  | Canada |  |  |  | 60.00 | % |  |  | 60.00 | % |  |  | 100 | % |  |  | Voting Share (3) |
Waterbury Lake Uranium LP |  |  | Canada |  |  |  | 66.90 | % |  |  | 66.57 | % |  |  | 100 | % |  |  | Voting Share (3) |
Key Contractual Arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wheeler River Joint Venture |  |  | Canada |  |  |  | 90.00 | % |  |  | 90.00 | % |  |  | 90.00 | % |  |  | Denison Share (3) |
Midwest Joint Venture |  |  | Canada |  |  |  | 25.17 | % |  |  | 25.17 | % |  |  | 25.17 | % |  |  | Denison Share (3) |
Mann Lake Joint Venture |  |  | Canada |  |  |  | 30.00 | % |  |  | 30.00 | % |  |  | N/A (4) |  |  |  | Denison Share (3) |
Wolly Joint Venture |  |  | Canada |  |  |  | 21.89 | % |  |  | 21.89 | % |  |  | N/A (4) |  |  |  | Denison Share (3) |
McClean Lake Joint Venture |  |  | Canada |  |  |  | 22.50 | % |  |  | 22.50 | % |  |  | 22.50 | % |  |  | Denison Share (3) |
(1) | Ownership Interest represents Denison’s percentage equity / voting interest in the entity or contractual arrangement;
(2) | Participating interest represents Denison’s percentage funding contribution to the particular joint operation or contractual arrangement. This percentage can differ from ownership interest in instances where other parties to the arrangement have carried interests, they are earning-in to the arrangement, or they are diluting their interest in the arrangement (provided the arrangement has dilution provisions therein);
(3) | Denison Share is where Denison accounts for its share of assets, liabilities, revenues and expenses in accordance with the specific terms within the contractual arrangement. – this can be by using either its ownership interest (i.e. Voting Share) or its participating interest (i.e. Funding Share), depending on the arrangement terms. The Voting Share and Funding Share approaches produce the same accounting result when the Company’s ownership interest and participating interests are equal;
(4) | The participating interest for 2020 for these arrangements is shown as Not Applicable as there were no approved spending programs carried out during fiscal 2020.

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