ASX: LIB  /  Cuyuni Mining District, Guyana  /  UTM Zone 21N

Liberty’s position in the Oko gold district

Two consolidated blocks on the interpreted Oko shear corridor. Oko North abuts G Mining Ventures ground; Oko South covers the interpreted southern continuation, roughly 30km further along trend.

GMIN / G2 GROUND OKO NORTH LIBERTY METALS OKO SOUTH LIBERTY METALS ~5.3km WORKINGS CORRIDOR NEW OKO 60m @ 5.9 g/t GREATER OKO +9Moz Au 15 km ~30 km 248000mE 264000mE 280000mE N 0 5 10 km SCHEMATIC — NOT FOR SURVEY OR TENEMENT DEFINITION

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The workings corridor is the crux

A 5.3km corridor of artisanal workings runs through Oko North and continues into GMIN ground. If mapping places them on the shear, Liberty has a drill target on the boundary of a multi-million-ounce camp.

Legend

Liberty Metals tenure
GMIN / G2 ground
Greenstone terrane
Granite
Interpreted shear corridor
Artisanal workings
Drainage
Granite-greenstone contact

Map layers








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Directly abuts ground held by G2 Goldfields, now GMIN, in proximity to the New Oko Discovery. Carries the reported workings corridor. Held as a 90% interest under option.
Covers the interpreted southern structural continuation, roughly 30km south of the Oko deposits. May capture more granite-greenstone contact.
Oko West and Oko-Ghanie consolidated into a single project of roughly 362km2, holding 7.0Moz Measured and Indicated and 2.3Moz Inferred. In construction, first gold targeted for the second half of 2027.
On G2 ground near the northern boundary of Oko North. Reported intercepts include 60m at 5.9 g/t and 100m at 2.2 g/t. Third-party disclosure, not verified by Liberty or its Competent Person.
Approximately 9.3Moz delineated across the district, substantially all of it within the last five years. Oko West alone carries 4.64Moz in Probable Reserves. None of it sits on Liberty tenure.
Georeferencing of public satellite imagery reports roughly 4km2 of artisanal disturbance along a 5.3km corridor inside Oko North, continuing into GMIN ground. If the workings sit on shear structure, Liberty has a drill target. If they are drainage-hosted alluvial workings fed from elsewhere, the block reverts to adjacency. Mapping now underway is the first work capable of deciding it.

Schematic diagram. Block shapes, geology, drainage and the shear corridor are illustrative, drawn from Figure 1 of the ASX announcement dated 21 August 2026 and from third-party observation. They are not tenement boundaries, not survey data, and must not be used to determine the location or extent of any permit. The workings corridor shown is an unverified third-party georeferencing observation, not company data.

Five years, nothing to 9.3Moz, all of it on neighbouring ground

PRE-2019

Effectively unexplored

First alluvial rush in the 1870s and small historic mines, but the Oko property had never been drilled or modern-explored.

0 Moz defined

2019 – 2020

Soils find Kairuni

Following airborne magnetics, soil sampling outlined a 6km gold-in-soil anomaly. Trenching returned 69m at 5.98 g/t. Workings covered the concession.

Reunion Gold · third-party ground

2022

Oko Main Zone maiden resource

G2 drilled a 2km deformation zone marked by historic pits and shafts. Here the workings did mark the structure.

793kt @ 8.63 g/t Indicated

APR 2025

Oko West Feasibility Study

Probable Reserves of 4.64Moz supporting ~350,000oz a year over 12.3 years. Construction followed; first gold targeted H2 2027.

G Mining Ventures · third-party ground

APR 2026

A major pays a premium to enter

Endeavour Mining took 9.9% of Altair Minerals for A$28.2M at A$0.043, some 40% above the 30-day VWAP. Endeavour has delineated 22.4Moz M&I globally since 2016.

Altair recently reported 10m @ 10.15g/t Au at South Oko

JUL 2026

The camp consolidates

GMIN completed its ~C$3.0B acquisition of G2, combining Oko West and Oko-Ghanie into a single ~362km² project.

7.0Moz M&I · 2.3Moz Inferred

AUG 2026

Liberty starts work

Field teams mobilised across 40 granted permits nine days after the binding option. Mapping underway; ~5,000 soil samples to follow, assayed in-field.

No previous modern exploration and drilling

26 AUG 2026

Guiana Shield geologist joins the board

Travis Schwertfeger appointed Non-Executive Director. Six years leading gold exploration in Guyana, and the man who brought Barrick and Nordgold onto Guyanese ground.

Proven record of attracting non-dilutive funding

NEXT

The resolution point

Mapping places the workings on shear or in drainage. Rock chips test in-situ material. First soil lines are used to produce a coherent anomaly.

Imminent news pipeline

Oko District Status

TSX: GMIN

G Mining Ventures
Resources7.0 Moz M&I
Inferred2.3 Moz
StatusIn construction
First goldH2 2027

Market capitalisation

A$16B

400× Liberty Metals

ASX: ALR

Altair Minerals
ResourcesNone estimated
Program50,000 m
InterestEarning 70%
Strategic holderEndeavour 9.9%

Market capitalisation

A$311M

8× Liberty Metals

ASX: LIB

Liberty Metals
ResourcesNone estimated
Permits40 granted
InterestOption to 90%
Program~5,000 soils

Market capitalisation

A$40M

1/400th of GMIN

Market capitalisations are approximate and as at 28 August 2026; they move daily. GMIN holds the delineated endowment; Altair and Liberty hold exploration ground on which no Mineral Resource has yet been estimated.

The board

In August 2026 Liberty added two directors with direct Guiana Shield experience: one who has explored it, and one who has mined it. Between them they also cover the Birimian belts of West Africa, the same terrane before the Atlantic opened.

Travis Schwertfeger

Non-Executive Director, appointed 26 August 2026

Travis Schwertfeger

A geologist with more than 25 years across gold and copper in South America, Africa, North America and Australia, including seven years with Newmont. He spent six years as Managing Director of Alicanto Minerals leading exploration in Guyana, and founded Many Peaks Minerals in 2021.

Six years operating in Guyana

In-country

Managing Director of Alicanto Minerals, leading exploration across the Arakaka and Ianna projects in the Northwest Mining District. Guyanese permitting, the GGMC, community relations and wet-season logistics are not skills acquired from Perth.

Brought Barrick to Guyanese ground

Rare

A US$10 million earn-in signed with Barrick Gold in March 2016 over Arakaka. Barrick had spent US$7.1 million before withdrawing in 2018. A further earn-in followed with Nordgold in 2019. His framing at the time: the work was funded without diluting shareholders.

Shell to 1.32Moz in four years

Recent

Founded Many Peaks Minerals in 2021, listed 2022, and delivered a maiden resource at Ouarigue in April 2026 of 26.7Mt at 1.54 g/t for 1.32Moz, 83% Measured and Indicated, at a reported discovery cost near A$11.25 an ounce. Same Birimian greenstone, other side of the Atlantic.

A corporate exit on the record

Track record

Director of Exore Resources, acquired by Perseus Mining by scheme of arrangement in 2020 after rapid resource growth at Bagoe in northern Cote d’Ivoire.

Steve Letwin

Non-Executive Director, appointed 5 August 2026

Steve Letwin

President and Chief Executive Officer of IAMGOLD Corporation for a decade, from November 2010 to February 2020, running a dual-listed producer that reached a market capitalisation of roughly C$11.5 billion with four operating mines across three continents.

A decade mining the Guiana Shield

Direct

IAMGOLD operated Rosebel in Suriname throughout his tenure, a mine producing around 337,000 ounces a year from the same Guiana Shield greenstone that underlies Liberty’s ground in Guyana. Very few people have run a producing gold mine on this shield. He is one of them.

Led a C$11.5 billion producer

Scale

Ten years as President and CEO of IAMGOLD, listed on both the TSX and NYSE, with operating mines at Rosebel in Suriname, Essakane in Burkina Faso, Westwood in Canada and an interest in Sadiola in Mali, plus development projects across North America, South America and West Africa.

Birimian on both sides of the Atlantic

Same rocks

Essakane in Burkina Faso sits in the West African Birimian greenstone that formed a single belt with the Guiana Shield before the Atlantic opened. Together with Rosebel, his operating experience spans both halves of the terrane Liberty is exploring.

Discovery converted to reserves

Delivery

Under his leadership Rosebel advanced the adjacent Saramacca discovery from resource to reserve within a year, adding an extra five years of mine life and lifting Saramacca’s Measured and Indicated resources by 72% to 1.2 million ounces.

Honoured by two host governments

Trusted

Awarded the Order of the Yellow Star by Suriname in 2018 and L’Officier de l’Ordre National by Burkina Faso in 2011. In jurisdictions where permitting and community relations decide project timelines, that standing is not decorative.

The evidence

Granted permits, not applications

Strong

Forty granted medium-scale permits across ~180km² in two consolidated blocks. Guyanese permits issue in 1 to 5km² parcels held by private citizens, so a package this size needed agreement across dozens of holders and cannot be assembled quickly.

Proven method, not a proxy

Strong

The district’s largest deposit was found by soil geochemistry. A 2020 soil program outlined the 6km anomaly that became Oko West. Liberty’s 5,000-sample program is the same technique on the same trend.

Systems that continue at depth

Strong

Peer drilling returned 14.3m at 8.2 g/t from 433m downhole, with resource zones open below 350m vertical. Historic mining in the district stopped at 70 to 100m. The shear-hosted style continues far below anything tested by hand.

A credible path to partner funding

Strong

The August 2026 board appointment brings in a director who has twice signed majors, Barrick and Nordgold, onto Guyanese gold ground.

Direct abutment at Oko North

Strong

Oko North shares a boundary with ground formerly held by G2 and now owned by GMIN, close to the New Oko Discovery. The shear corridor is mapped over 15km-plus and peer work indicates the architecture continues north.

The 5.3km workings corridor

Strong

Independent georeferencing of public satellite imagery reports ~5.3km of artisanal disturbance in the northern block, continuing into GMIN ground. Linear workings over that strike suit a structural control better than random alluvial traps.

Oko South continuation

Moderate

The southern block covers what Liberty interprets as the southern continuation of the trend, and may capture more granite-greenstone contact than the northern block.

Important. Nearby discoveries, transactions or interpreted geological similarities are not necessarily indicative of mineralisation within Liberty’s tenure and do not guarantee exploration success. The Project is a greenfields exploration project and no Mineral Resources or Ore Reserves have been estimated on Liberty Metals’ tenure. Refer to the Company’s ASX announcements dated 12 and 21 August 2026. General information only; not investment advice.