Mine / resource · Canada

Galaxy (James Bay)

DevelopmentNot yet verifiedAs of 25 Oct 2026
Owner
Rio Tinto 100% (ex-Arcadium / Allkem / Galaxy Lithium (Canada) Inc.)
Listed via
RIO
Product
Spodumene
Deposit type
Spodumene
Capacity
Probable Ore Reserve 37.3 Mt @ 1.27% Li2O; Mineral Resource (excl. Reserves) 74.0 Mt @ 1.25% Li2O (30 Jun 2025, 100% basis); no capacity stated in Rio filings
Location
52.23°, -77.07°

Eeyou Istchee James Bay, Québec, near km 381 of the Billy-Diamond Highway, ~10 km south of the Eastmain River. Location = mine-site coordinates (NAD83) from the federal environmental assessment report (Impact Assessment Agency of Canada) and the UTM centre (18N 358,891 E / 5,789,180 N) in the James

Ownership structure

Effective economic interest of listed owners · As of 25 Oct 2026
Rio TintoRIO100%Galaxy (James Bay)Mine / resource

Structure: Rio Tinto 100% (ex-Arcadium / Allkem / Galaxy Lithium (Canada) Inc.).

Value chain

Owners, buyers and the refineries on Li3atlas they feed · As of 25 Oct 2026
Listed ownersRio TintoRIO · 100%
Mine / resourceGalaxy (James Bay)Probable Ore Reserve 37.3 Mt @ 1.27% Li2O; Mineral Resource (excl. Reserves) 74.0 Mt @ 1.25% Li2O (30 Jun 2025, 100% basis); no capacity stated in Rio filings

Country risk · Canada

Policy risk: Low As of 24 Oct 2026

Change history

Approved changes with their source · As of 25 Oct 2026
DateFieldChangeSource
25 Oct 2026Notesnew: Added to Li3atlas: Galaxy (James Bay)Rio Tinto Notice to ASX: Initial reporting of lithium Mineral Resources and Ore Reserves (4 Dec 2025)

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