NexGen EnergyPrefer Sterling in Google
Add sterlingcharts.com as a preferred source so our charts can appear with a preferred badge in Google Top Stories, AI Mode, and AI Overviews.
Register for a premium account to gain access to Sterling AI.
Get StartedThings you can ask Sterling:
| Period | Tonnage (t) | Grade (% U3O8) | Contained (Mlb U3O8) |
|---|---|---|---|
| Measured | 2,183,000 | 4.35 | 209.6 |
| Indicated | 1,572,000 | 1.36 | 47.1 |
| Measured + Indicated | 3,754,000 | 3.1 | 256.7 |
| Inferred | 4,399,000 | 0.83 | 80.7 |
| Period | Date | Status | Notes |
|---|---|---|---|
| Arrow Mineral Resource estimate | Jul 19, 2019 (effective) | Complete (reprinted in 2025 AIF) | Measured 209.6 Mlb + Indicated 47.1 Mlb = 256.7 Mlb U3O8 at 3.10% in 3.754 Mt. Inferred 80.7 Mlb. Not production. |
| Rook I Feasibility Study | Technical report dated Mar 10, 2021 | Filed | NI 43-101 Class 3. Probable Mineral Reserves 239.6 Mlb U3O8 in 4.575 Mt at 2.37%. Mine life 10.7 years. Mill 1,300 t/d. |
| CNSC licence application accepted | September 2023 | Achieved | 2025 AIF: CNSC deemed the licence application sufficient in September 2023. |
| Saskatchewan provincial EA approval | Nov 9, 2023 | Achieved | Ministerial approval under The Environmental Assessment Act of Saskatchewan. Not November 2024. |
| Benefit Agreements with Indigenous Nations | MN-S signed Jun 15, 2023; CRDN, BNDN, BRDN signed prior | Signed | 2025 AIF: Benefit Agreements with Clearwater River Dene Nation, Birch Narrows Dene Nation, Buffalo River Dene Nation, and Metis Nation - Saskatchewan Northern Region 2 / MN-S. |
| Interim Trend Update (pre-production capex) | Aug 1, 2024 | Disclosed | Internally prepared cost-sensitivity report. Pre-production capex approximately C$2.2 billion vs FS approximately C$1.3 billion. Not an updated FS. |
| CNSC Final EIS accepted | Jan 28, 2025 | Achieved | 2025 AIF and YE 2025 MD&A. |
| CNSC Commission Hearing Part 1 | Nov 19, 2025 | Held | Two-part public hearing on the EA and licence to prepare site and construct. |
| CNSC Commission Hearing Part 2 | Feb 9 to 12, 2026 | Held | Saskatoon. Hearing concluded Feb 12, 2026. |
| CNSC EA approval and Licence to Prepare Site and Construct | Announced Mar 5, 2026; licence Mar 4, 2026 to Mar 31, 2036 | Issued | Final federal approval to begin full construction. Does not authorize operation. Financial guarantee C$61.848 million accepted by CNSC. |
| Final Investment Decision | Announced as already made on Mar 5, 2026 | Made (per NexGen PR) | Separate FID calendar date not printed. Mar 5, 2026 release: FID already made; official construction commencing summer 2026. |
| Pre-construction licence conditions cleared | May 22, 2026 | Cleared | Q2 2026 MD&A: CNSC confirmed resolution of all Licence conditions required prior to commencement of construction. |
| Licensed construction commenced | Jun 8, 2026 | Underway | Q2 2026 MD&A: licensed construction activities commenced at Rook I after Q2 2026 site mobilization. |
| Construction duration (company schedule) | 4 years from commencement | Schedule (not a production print) | NexGen Mar 5, 2026 PR. First-production calendar year is not stored. FS years 1-5 average and mill design rates are not stored as production lbs. |
| Licence to operate | Not applied | Future CNSC hearing required | CNSC Mar 5, 2026: the construction licence does not authorize operation of the facility. |
| Period | Pre-production capex (C$ M) | LOM cash opex (C$ per lb U3O8) | Sustaining capital (C$ M) |
|---|---|---|---|
| 2021 FS (Q4 2020 $) | 1,299.9 | 7.58 | 362.4 |
| 2024 Trend Update (Q4 2023 $) | 2,200 | 13.86 | 785 |