ORBMINCO LIMITED — Investor Presentation 2021

Aug 1, 2021

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Ni-Cu-PGE + Gold Projects

Investor Presentation August 2021

Kevin Seymour Managing Director

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ASX : WML – August 2021

IMPORTANT INFORMATION

DISCLAIMER

This presentation doesn’t include all the information on Woomera Mining Limited and should not be used in isolation as a guide to investing in the Company. Any potential investor should also refer to the Woomera Mining Limited’s Annual Reports, filings and ASX releases and take independent professional advice before considering investing in the Company. For further information about Woomera Mining Limited, visit the website at www.woomeramining.com.au

COMPETENT PERSONS STATEMENT

The exploration results reported herein, insofar as they relate to mineralisation, are based on information compiled by Mr Kevin Seymour. Mr Seymour is a Member of the Australasian Institute of Mining and Metallurgy who has over thirtyfive years of experience in the field of activity being reported. Mr Seymour has sufficient experience which is relevant to the styles of mineralisation and types of deposit under consideration and to the activity that he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ relating to the reporting of Exploration Results. Mr Seymour consents to the inclusion in the report of matters based on his information in the form and context in which it appears.

FORWARD LOOKING STATEMENTS

Certain statements in this document are or maybe “forward-looking statements” and represent Woomera’s intentions, projections, expectations or beliefs concerning among other things, future exploration activities. The projections, estimates and beliefs contained in such forward looking statements necessarily involve known and unknown risks, uncertainties and other factors, many of which are beyond the control of Woomera, and which may cause Woomera’s actual performance in future periods to differ materially from any express or implied estimates or projections. Nothing in this document is a promise or representation as to the future. Statements or assumptions in this document as to future matters may prove to be incorrect and differences may be material. Woomera does not make any representation or warranty as to the accuracy of such statements or assumptions.

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ASX : WML – August 2021

WOOMERA MINING LIMITED – CORPORATE SNAPSHOT

ASX: WML

Share Price (30 July 2021): $0.024 per share Shares on Issue: 500 million Options: 224 million Market Capitalisation: $12.0 million Cash (30 Jun 2021): $2.5 million Debt (30 Jun 2021): Nil Enterprise Value: $9.5 million

Major Shareholders

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David Lindh, NED, 6.79%
Ian Gordon, NED, 0.49%
David Richards, NED, 0.29%
Kevin Seymour, MD, 1.18%
Other
Shareholders,
91.25%
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Share Price History

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$0.04 30.0
New Board & Management
$0.04
25.0
$0.03
20.0
$0.03
$0.02 15.0
$0.02
10.0
$0.01
5.0
$0.01
$0.00 -
01/2020 04/2020 07/2020 10/2020 01/2021 04/2021 07/2021
Nickel and Gold Price Performance
Nickel (lhs) Gold (rhs)
9.0 3000
2500
6.0 2000
1500
3.0 1000
500
0.0 0
1/12/2019 1/03/2020 1/06/2020 1/09/2020 1/12/2020 1/03/2021 1/06/2021
Share price (A4/sh) Volume (millions)
A$/oz Au
US$/per lbs Ni
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ASX : WML – August 2021

WOOMERA MINING LIMITED – NEW LEADERSHIP

Experienced, well credentialled Board with strong history of exploration, development and production success

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Kevin Seymour

Managing Director

Ian Gordon

Non-Executive Chair

David Richards

Non-Executive Director

David Lindh

Non-Executive Director

• +35 years (Geologist)

• Formerly General Manager - Exploration at Ramelius Resources (ASX:RMS)

• Led discovery teams for Lady Ida (Kalgoorlie) and Eridanus (Mt Magnet), in WA

• +25 years (Mining Executive)

• Non-Exec. Director Dreadnought Resources (ASX:DRE)

• Formerly MD at Ramelius Resources (ASX:RMS) and Flinders Mines (ASX:FMS)

• +40 years (Geologist)

• Technical Director – Liontown Resources (ASX:LTR)

• Led discovery teams for Vera-Nancy /Pajingo (Qld) and the Kathleen Valley Lithium Deposit in WA

• +40 years (Lawyer)

• Chairman NuCannCo Science

• Formerly Chairman Centrex Metals (ASX:CXM) etc

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ASX : WML – August 2021

EXPLORATION FOCUS – Gold + Base Metals Projects

• Yilgarn Craton - Mt Venn JV (Au + Ni-Cu-PGE) Project – 80% Woomera Mining (WML) / 20% Cazaly Resources

• Musgrave Province – Musgrave (Ni-Cu-Co) Project – 100% WML

• Gawler Craton - Labyrinth (Cu-Au) Project – 100% WML

• Exploring three world-class nickel, copper and gold provinces

• Excellent access to rail and road infrastructure

• Low-risk, investor-friendly mining jurisdictions

Pipeline of targets over multiple projects

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ASX : WML – August 2021

MT VENN JV PROJECT - Gold + Ni–Cu-PGE

• Mt Venn JV Project – 80% Woomera Mining / 20% Cazaly Resources

• 366km[2 ] granted tenure

• 125km north-east of Laverton with good access off the Great Central Road

• 40km west of 6Moz Gruyere Gold Mine

• Within trucking distance of eight neighbouring gold

• processing plants

• Pipeline of nickel and gold targets

• Twenty five Reverse Circulation (RC) holes drilled into Three Bears during May and June for an aggregate 4,366m and 40 Aircore holes drilled for an advance of 1,457m

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ASX : WML – August 2021

THREE BEARS PROSPECT – RESOURCE POTENTIAL

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Plan view Au gram x metre long-section – showing predicted high grade shoots

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ASX : WML – August 2021

THREE BEARS PROSPECT – RESOURCE POTENTIAL

• Three Bears is defined by anomalous (>100ppb Au) Aircore mineralisation over 7km strike

• Deeper RC drilling (Mama Bear) has tested only 600m strike

• Mineralisation remains open along strike and down plunge

• Mama Bear intersections include[(1)] :

• 13m at 0.6 g/t Au from 24m in MVRC026, including 3m at 1.2 g/t Au from 31m

• 27m at 0.4 g/t Au from 88m in MVRC028, including 3m at 1.3 g/t Au from 95m

• 39m at 0.4 g/t Au from 50m in MVRC029, including 5m @ 1.0 g/t Au from 79m

• 49m at 0.3 g/t Au from 54m in MVRC031, including 4m at 1.0 g/t Au from 55m

• 37m at 0.4 g/t Au from 65m in MVRC032, including 6m at 1.3 g/t Au from 101m

• 50m at 0.3 g/t Au from 46m in MVRC034, including 3m at 1.3 g/t Au from 53m and

• 8m at 0.6 g/t Au from 146m in MVRC039, including 1m at 1.9 g/t Au from 150m

(1). Woomera Mining; 2021: June Quarterly Report, dated 23 July 2021. Assays rounded to one decimal place. Historical assays previously reported by Cazaly Resources (ASX: CAZ) in 2017, see their ASX Releases dated 27/2/2017 and 31/10/2017

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ASX : WML – August 2021

THREE BEARS PROSPECT – RESOURCE POTENTIAL

• Broad anomalous gold intersections at Mama Bear remain open at depth

• Indicate a large, north plunging, alteration / mineralisation system

• Strong biotite alteration + pyr-pyo-cpy sulphides

• RC drilling confirms shallow 20 - 30[0] east dip

• Significant (80m) horizontal thicknesses identified

• Phase #1 RC and Aircore drilling completed, however:

• Awaiting RC results from the Baby Bear and Papa Bear Lodes

• Awaiting results from Aircore traverses across the granite-greenstone contact

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ASX : WML – August 2021

MT CUMMING PROSPECT – MAGMATIC MASSIVE SULPHIDE NI-CU-PGE POTENTIAL

• Three Ni-Cu-Au-PGE massive sulphide prospective intrusions identified

• Mt Warren Sill extends over 5km x 2km

• Similar size and geometry (folded “eye”) to IGO’s Nova-Bollinger Ni-Cu Mine

• Two undrilled EM anomalies – EM#1 and 2

• PGE mineralisation mapped over 2km strike

• Rock chips up to 226 ppb Pt + Pd[(2)]

• Mt Cornell Sill extends over 5km x 3km

• Two undrilled EM anomalies – EM#3 and 6

• Up to 3.2% Cu and 8.2 g/t Au in rock chip sampling coincident with Anomaly 3[(1)]

• Strong Pt-in-soil anomalism (up to 27ppb) coincident with Anomaly 4[(2)]

• Au-Pt soil anomalism coincident with Anomaly 5

Copper workings – gossanous siliceous-ironstone

• Anomaly 6 – no previous soil sampling

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• Mt Cumming Sill extends over 5km x 1km

• One undrilled EM anomaly – EM#5

• Coincident Au-Pt-Cr soil anomalies

• (1). Elmina NL;1995 -1998: Annual Technical Reports for the years ending 1995-1998 - WAMEX Open File Reports A051251+ A058034

(2). Helix Resources; 2000 - 2002: Jutson Rocks Annual Technical Reports for the years ending 2000 - 2002 – WAMEX Open File Reports A064707 + A064708 + A066357

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Airborne Versatile-Time Domain Electromagnetic Survey Image

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ASX : WML – August 2021

MT CUMMING PROSPECT – MAGMATIC MASSIVE SULPHIDE NI-CU-PGE POTENTIAL

• Five conductors confirmed - additional ground EM planned with drilling scheduled later this quarter, once heritage surveys finalised

• 8-10 RC holes planned (3,000 - 4,000m) Mt Warren Sill

Mt Cornell Sill

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ASX : WML – August 2021

JUTSON DOME PROSPECT – KOMATIITIC MASSIVE NI SULPHIDE POTENTIAL

• Untested basal komatiitic ultramafic flows

identified at Mt Venn’s Jutson Dome, with stratigraphy and dimensions analogous to the Kambalda Dome:

• 51Mt at 3.1% Ni mined from the Kambalda region to 2020[(1)]

• Jutson Dome covers +25km[2] of highly prospective stratigraphy

• Anomalous nickel in soils >1000ppm Ni, never drilled

• 3m at 0.7% Ni in historical costean[(2)] , never drilled

• WML planning MLEM and deeper drilling at Jutson Dome

• Two new VTEM conductors modelled along strike from Great Boulder Resources Ltd’s[(3)] (ASX:GBR) and Ausgold Ltd’s[(4) ] (ASX:AUC) Winchester Prospect:

• Winchester confirms semi-massive sulphides in the district with intersections up to 21m at 0.63% Cu + 0.2% Ni

• WML planning FLEM and RC drilling to test the conductors

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(1). Source Portergeo.com.au

(2). Kennecott Exploration Australia Pty Ltd (1971): Throssell One and Two . WAMEX Open File report A06944

(3). See Great Boulder Resources - ASX Release RIU Presentation dated February 2021

(4). See Ausgold Limited - ASX Release Corporate RIU Presentation dated February 2021

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ASX : WML – August 2021

MUSGRAVE PROVINCE – MAGMATIC MASSIVE SULPHIDE NI-CU-PGE PROVINCE

• Musgrave Province is highly prospective for magmatic Ni-CuPGE discoveries

• Fractionated Giles Complex rocks, including gabbro, that host OZL’s Nebo-Babel Ni-Cu deposits in the western Musgrave extend into Woomera’s Musgrave Project

• Prospective Giles Complex rocks confirmed in three holes and mapped by GSSA* along the western tenement boundary

• Historical assays up to 19m at 0.2% Ni[(1)] at Cavanagh (Area #2) confirm ultramafic cumulates (prospective for PGE rich magmatic massive sulphide deposits) from 8m depth

• Magnetic variability makes it difficult to map the Giles Complex rocks vs Amata Dolerite

• First test - over 30km[2] to be explored with auger/mini-RAB drilling to map the extent of Giles Complex rocks over Cavanagh + Areas #1, #2 and #3, ahead of MLEM surveys later this year

• Reprocessing Cavanagh ground EM also underway, to refine conductors and prioritise drill targets, for testing in 2022

• (1). CRA (1997): EL2020 Mt Howe Project – Exploration Report 23518. South Australian DME Open File Exploration Report . * Geological Survey of South Australia

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ASX : WML – August 2021

EXPLORATION TIMELINE – 2021 & 2022

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RC Drilling Mt Cumming Complex

Heritage Surveys + Ground EM Mt Cumming Complex

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Ground EM + Auger Drilling Musgrave Project

Infill + Extension RC Drilling* Three Bears

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RC Drilling Musgrave Project

* contingent on final results from Phase#1 Drilling

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ASX : WML – August 2021

WOOMERA MINING LIMITED – INVESTMENT CASE

• Focussed on large, highly prospective, under-explored land positions

• World-class mineral provinces

• Investor-friendly mining jurisdictions

• Close to established infrastructure

• Targeting Au + Ni-Cu-PGE deposits

• Multiple projects to maintain news flow

• Multiple auger soil + EM surveys planned

• Multiple drill targets identified

• Under “New Management”

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ASX : WML – August 2021

THANK YOU

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ASX : WML – August 2021