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2026-11-06
◂ Monitor TSO ASX

Tesoro Gold Limited

PFS Developer · Gold · CL Rating locked: sign in to view v8.1 · tso-20261030t220329-full
Last 2026-11-06
A$0.74
1D
—
1M
—
YTD
—
1Y
—
Upside
Locked: sign in to view
Mkt cap
A$133M
EV
A$124.1M
Cash
A$9.3M
Debt
A$0
3 newer ASX announcements not yet reflected in this valuation

Portfolio detail

Assets

1 assets

Core asset

El Zorro Gold Project (Ternera deposit)

CL

PFS Developer90.63% ownedGold

Ternera single open pit: maiden 1.28Moz Ore Reserve (Sep 2026), DFS due by end CY2026, EIA submission Q1 2027, FID targeted Q1 2027, first gold CY2029. Tesoro holds 95% of Tesoro Mining Chile (Inversiones Marlin 5% free-carried), which holds 95.4% of El Zorro SCM (Wanaco SpA 4.6%, fully diluting); effective 90.63%, rising to 95.4% if the Marlin purchase completes after the December 2026 EGM.

Developer · PFS developer
Study
PFS (Ore Reserve modifying factors)
Post-tax NPV (study prices, attributable)
US$900.9md
NPV restated at our deck (attributable)
Locked
IRR
57%s
Initial capex (100%)
US$276.5ms
Capital intensity
US$3,023/(oz/yr)d
LoM AISC
A$2,208/ozs
Mine life
13.0 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$994M5% discount
IRR57%Published return
Initial capexUS$276.5MPublished capital estimate
Operating cost1,538USD/oz
NPVUS$663M7.5% discount
IRR51%Published return
Initial capexUS$248MPublished capital estimate
Operating cost1,216USD/oz

Post-tax, real, US$3,500/oz gold, 100% project basis, PFS +/-25% (financial outcomes +/-35%).

Post-tax, US$2,750/oz, scoping +/-35% (superseded).

Resources & reserves7
TypeCategoryQuantityGradeContained mineralsDate
Mineral ResourceMeasured2.4 Mt1.24 g/t AuGold2026-08-27
Mineral ResourceIndicated37.9 Mt1.13 g/t AuGold2026-08-27
Mineral ResourceInferred11.3 Mt0.98 g/t AuGold2026-08-27
Mineral ResourceTotal51.6 Mt1.10 g/t AuGold2026-08-27
Ore ReserveProved2.8 Mt1.05 g/t AuGold2026-09-16
Ore ReserveProbable40.1 Mt0.92 g/t AuGold2026-09-16
Ore ReserveTotal42.8 Mt0.93 g/t AuGold2026-09-16
Tenements3
ez_exploitationGranted— None · No expiry supplied
ez_explorationRenewal Pending— None · No expiry supplied
ez_relinquishedRelinquished2,700 ha · No expiry supplied
Milestones5
  1. Maiden Ore Reserve declared

    Achieved · High materiality

  2. Definitive Feasibility Study completion

    Pending · High materiality

  3. EIA, sectorial permits and closure plan submitted

    Pending · High materiality

  4. Final investment decision (first guided end CY2026, now Q1 2027)

    Delayed · High materiality

  5. Target first gold

    Pending · High materiality

Permits & approvals4
PermitJurisdictionStatusExpiryCritical path
Mining tenure for the reserveChileGranted—No
Environmental qualification (RCA) via EIA to the SEIAChile (SEA, Atacama)Required—Yes
Sectorial environmental permits (PAS) and closure planChileRequired—Yes
21MW grid connection authorisation (SUCTD) with Coordinador Electrico NacionalChilePending—Yes
Economic studies2
StudyStageStatusDateSummary
Expanded and upgraded open pit scoping studyScoping StudySuperseded2025-09-1140.7Mt at 1.02g/t, 1.26Moz recovered, US$248m upfront capital, AISC US$1,216/oz, post-tax NPV7.5 US$663m at US$2,750/oz (Indicated and Inferred).
PFS-level Ore Reserve modifying-factor studyPFSCurrent2026-09-18Reserve-only schedule of ~1.19Moz recovered over Y2-Y16 at 3.0Mtpa; pre-production capital US$276.5m (US$52.2m vendor lease), opex US$42.77/t, AISC US$1,572/oz, post-tax NPV5 US$994m, IRR 57%, payback 17 months at US$3,500/oz.

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