Daily Mining Update highlights notable mining and natural-resource company developments reported over the last 24–48 hours, with a focus on publicly traded issuers and material project updates.
Key stories (last 24–48 hours)
Cameco & Orano to acquire TEPCO’s 5% interest in Cigar Lake (uranium)
- Cameco and Orano Canada reached an agreement with TEPCO Resources to acquire TEPCO’s 5% participating interest in the Cigar Lake Joint Venture. (Cameco)
- On closing, Cameco’s ownership is expected to increase to 57.418% (from 54.547%), and Orano’s to 42.582% (from 40.453%). (Cameco)
- Cameco said its purchase cost is approximately C$115.75 million (subject to closing adjustments), with closing expected in Q3 2026 (subject to regulatory approvals and other conditions). (Cameco)
IAMGOLD updates consolidated Mineral Resource estimate for Côté Gold (gold)
- IAMGOLD announced an updated NI 43-101 Mineral Resource estimate for the Côté Gold Mine (Ontario), consolidating the Côté and Gosselin zones into a single model with updated economic assumptions. (TMX Newsfile)
- On a 100% basis, IAMGOLD reported Measured & Indicated Mineral Resources of 20.3 Moz gold and Inferred Mineral Resources of 3.5 Moz gold (effective date March 31, 2026). (TMX Newsfile)
- The company said an updated Côté Gold Technical Report and updated mine plan are expected in Q4 2026. (TMX Newsfile)
Radisson reports new O’Brien Gold drill results from a previously under-drilled gap (gold exploration)
- Radisson Mining Resources reported new assay results from two pilot holes and wedge branches targeting the “Trend 1–Trend 2 Gap” at its 100%-owned O’Brien Gold Project in Québec. (MarketScreener (Newsfile))
- Highlights cited in the release include 7.57 g/t Au over 9.7 m (including 52.75 g/t Au over 1.1 m) in hole OB-26-387W2 and 3.43 g/t Au over 13.4 m in OB-26-386W1 (including several 1 m intervals between ~8–10 g/t Au). (MarketScreener (Newsfile))
- The company described the results as part of an ongoing 140,000 m step-out drill program and said additional results are expected shortly. (MarketScreener (Newsfile))
enCore Energy reports Alta Mesa East drilling supports potential ISR expansion (uranium)
- enCore Energy said initial exploration drilling at its Alta Mesa East property confirmed uranium mineralization extending more than 3,700 feet east of the nearest wellfield. (Morningstar (PR Newswire))
- The release reported results from an initial 17 holes, with 10 holes mineralized and six holes ranging from 0.351 to 2.297 grade-thickness (GT), noting that GT > 0.3 is considered suitable for inclusion in a wellfield. (Morningstar (PR Newswire))
- enCore said the work is intended to outline mineralization and guide permitting and expansion of in-situ recovery (ISR) operations into Alta Mesa East from existing Alta Mesa operations. (Morningstar (PR Newswire))
Trilogy Metals extends targeted closing date for U.S. strategic equity investment (critical minerals)
- Trilogy Metals said it and the U.S. Department of War agreed to extend the targeted closing date for a previously announced strategic equity investment from May 31, 2026 to July 31, 2026. (PR Newswire)
- The release references a proposed investment amount of US$35.6 million and noted the U.S. Government completed its Foreign Ownership, Control or Influence (FOCI) risk assessment of Trilogy Metals. (PR Newswire)
Appia closes share exchange related to Ultra Rare Earth structure (rare earths)
- Appia Rare Earths & Uranium said it completed a share exchange agreement dated May 21, 2026 involving Ultra Rare Earth entities, resulting in Appia holding a 25% equity interest in Ultra Rare Earth Inc. (Ultra USA). (TMX Newsfile)
- The company said Ultra USA is solely responsible for completing the prefeasibility study (PFS) on the Ultra IAC Project, and described changing geopolitical considerations as a driver of the transaction. (TMX Newsfile)
Disclaimer: This article is for informational purposes only and is not financial advice.
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