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2026-11-06
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Ioneer Ltd

DFS Unfunded Developer · Lithium · Others · US Rating locked: sign in to view v8.1 · inr-20261104t223125-full
Last 2026-11-06
A$0.095
1D
—
1M
—
YTD
—
1Y
—
Upside
Locked: sign in to view
Mkt cap
A$293.4M
EV
A$215.8M
Cash
US$54.5M
Debt
US$0

Portfolio detail

Assets

1 assets

Core asset

Rhyolite Ridge lithium-boron project

US

DFS Unfunded Developer100% ownedLithiumOthers

DFS update (Oct 2025) and Ore Reserve complete; federal permit granted and under appeal; funding and FID pending

Developer · DFS unfunded developer
Study
DFS update, 1.5-day leach (Oct 2025)
Post-tax NPV (study prices, attributable)
US$2.2bd
NPV restated at our deck (attributable)
Locked
IRR
1,800.0%
Initial capex (100%)
US$1.7b
Capital intensity
US$82,510/(t/yr)d
LoM AISC
A$10,170/t
Mine life
77.0 yrs

Project location

Approximate location

Loading location…

© OpenStreetMap contributors. Basemap imagery © Esri (Maxar, Earthstar Geographics). Dated overlays contain modified Copernicus Sentinel data. Visible surface changes do not establish production or completion.

Published study economicsIssuer or study metrics
NPVUS$2.2K8% discount
IRR18%Published return
Initial capexUS$1.7KPublished capital estimate
Operating cost6,712USD/t
NPVUS$2.3K8% discount
IRR23.2%Published return

After-tax unlevered NPV at 8% real, LOM average AISC net of boric acid credit per t LCE; Years 1-25 LiOH US$23,040/t and boric acid US$1,296/t; NPV and capex in US$ millions

After-tax levered NPV at 8% real including the DOE loan terms (US$996m facility, undrawn)

Resources & reserves4
TypeCategoryQuantityGradeContained mineralsDate
Mineral Resourcemeasured_and_indicated440.3 MtLi2CO3 0.76 wt%; H3BO3 2.87 wt%Lithium · Others2025-10-29
Mineral Resourceinferred108.3 MtLi2CO3 0.70 wt%; H3BO3 1.93 wt%Lithium · Others2025-10-29
Ore Reserveproved91.6 MtLi2CO3 0.84 wt%; H3BO3 3.69 wt%Lithium · Others2025-10-29
Ore Reserveprobable173.9 MtLi2CO3 0.73 wt%; H3BO3 2.52 wt%Lithium · Others2025-10-29
Milestones4
  1. Strategic partnering process (minority sell-down) expected to conclude

    Pending · High materiality

  2. Ninth Circuit decision on the BLM Plan of Operations appeal

    Pending · High materiality

  3. Final investment decision once equity and debt are in place

    Pending · High materiality

  4. First production (company target 2029; analyst base case later)

    Pending · High materiality

Permits & approvals3
PermitJurisdictionStatusExpiryCritical path
BLM Record of Decision and Plan of Operations approval (NEPA)US federal (BLM)Granted—Yes
Nevada air quality and water pollution control permitsNevada (US)Granted—No
Permits for the extended LOM quarry (needed before the later mine plan)Nevada (US)Pending—No
Economic studies2
StudyStageStatusDateSummary
Further Leach Optimisation (1.5-day leach) DFS update with updated Ore ReserveDFSCurrent2025-10-29After-tax unlevered NPV8 real US$2,237.3m, IRR 18.0%, initial capex US$1,683.2m (AACE Class 2, -10%/+15%), LOM 77 years, 265.5 Mt processed at 3.4 Mtpa, LiOH US$23,040/t and boric acid US$1,296/t.
Two-day leach update (August 2025 case)DFSSuperseded2025-09-03Superseded by the October 2025 case: NPV8 US$1,888m, LOM 82 years, capex US$1,667.9m.

d derivedr our researchg guidances study forecastm daily marketNo marker: as reported— / NM missing or not meaningful (hover for why)