Mine / resource · Argentina

Olaroz

ProducingVerified 24 Oct 2026As of 24 Oct 2026
Owner
Sales de Jujuy JV: Rio Tinto 66.5%, Toyota Tsusho 25%, JEMSE 8.5%
Listed via
RIO
Product
Brine
Deposit type
Brine
Capacity
Stage 1 17.5 kt LCE/yr; Stage 2 adds 25 kt for 42.5 ktpa LCE total in 2030
≈ 42.5 kt LCE/yr (nameplate)
Location
-23.45°, -66.70°
Source
Filing used for verification

Q3 2026 output was hit by planned annual maintenance and lower lithium concentration in the ponds after weather events.

Ownership structure

Effective economic interest of listed owners · As of 24 Oct 2026
Rio TintoRIO66.5%Other / unlisted33.5%OlarozMine / resource

Attributable capacity

Listed ownerStakekt LCE/yr
Rio Tinto RIO66.5%≈28

Structure: Sales de Jujuy JV: Rio Tinto 66.5%, Toyota Tsusho 25%, JEMSE 8.5%. 33.5% is held by unlisted or untracked owners.

Value chain

Owners, buyers and the refineries on Li3atlas they feed · As of 24 Oct 2026
Listed ownersRio TintoRIO · 66.5%
Mine / resourceOlarozStage 1 17.5 kt LCE/yr; Stage 2 adds 25 kt for 42.5 ktpa LCE total in 2030

Resource and mine life

As of 24 Oct 2026
Resource
19.7 Mt LCE
Reserve
2.7 Mt LCE
Grade
490 mg/l Li (brine)
As of
30 Jun 2025

Milestones

As of 24 Oct 2026

Upcoming (1)

  • 2030Olaroz Stage 2: total capacity 42.5 ktpa LCEExpansion · source

Country risk · Argentina

Policy risk: Medium As of 24 Oct 2026
Royalty
Provincial royalty capped at 3% at the mine mouth; Catamarca and Salta have legislated up to 5%

RIGI investment regime covers lithium and cuts the effective tax rate (Fundar model for a Salta project: 42.8% to 30.4%). source

Change history

Approved changes with their source · As of 24 Oct 2026
DateFieldChangeSource
24 Oct 2026Resource / reservenew: resource 19.7 Mt LCE · reserve 2.7 Mt LCE · 490 mg/l Li (brine) · as of 2025-06-30Rio Tinto Notice to ASX: Initial reporting of lithium Mineral Resources and Ore Reserves (4 Dec 2025)
24 Oct 2026Capacity~42.5 kt LCE → Stage 1 17.5 kt LCE/yr; Stage 2 adds 25 kt for 42.5 ktpa LCE total in 2030Rio Tinto Notice to ASX: Initial reporting of lithium Mineral Resources and Ore Reserves (4 Dec 2025)
24 Oct 2026NotesStage 2 ramping. → Q3 2026 output was hit by planned annual maintenance and lower lithium concentration in the ponds after weather events.Rio Tinto Third Quarter Operations Review 2026 (ASX, 14 Oct 2026)
24 Oct 2026Stakenew: RIO: 66.5%Rio Tinto Third Quarter Operations Review 2026 (ASX, 14 Oct 2026)
24 Oct 2026VerifiedValues confirmedRio Tinto Third Quarter Operations Review 2026 (ASX, 14 Oct 2026)
24 Oct 2026Milestonenew: 2030 · Olaroz Stage 2: total capacity 42.5 ktpa LCE Expansion ExpectedRio Tinto Notice to ASX: Initial reporting of lithium Mineral Resources and Ore Reserves (4 Dec 2025)
24 Oct 2026OwnerRio Tinto (ex-Arcadium) → Sales de Jujuy JV: Rio Tinto 66.5%, Toyota Tsusho 25%, JEMSE 8.5%Rio Tinto Notice to ASX: Initial reporting of lithium Mineral Resources and Ore Reserves (4 Dec 2025)

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