GATEWAY MINING LIMITED — AGM Information 2022

Nov 22, 2022

1

==> picture [394 x 541] intentionally omitted <==

Gearing up for our next leg of growth

Montague Gold Project North Murchison, WA

Annual General Meeting | November 2022 Mark Cossom, Managing Director

Important Information and Disclaimer Forward Looking Statements 2

• This presentation has been prepared by Gateway Mining Ltd (GML). The information contained in this presentation is a professional opinion only and is given in good faith. Certain information in this document has been derived from third parties and through Gateway Mining has no reason to believe that it is not accurate, reliable or complete, it has not been independently audited or verified by GML.

• This presentation is in summary form and does not purport to be all inclusive or complete. Recipients should conduct their own investigations and perform their own analysis in order to satisfy themselves as to the accuracy and the completeness of the information, statements and opinions contained.

• This is for information purposes only. Neither this nor the information contained in it constitutes an offer, invitation, solicitation or recommendation in relation to the purchase or sale of GML shares in any jurisdiction. This does not constitute investment advice and has been prepared without taking into account the recipient’s investment objectives, financial circumstances or particular needs and the opinions and recommendations in this presentation are not intended to represent recommendations of particular investments to particular persons. Recipients should seek professional advice when deciding if an investment is appropriate. All securities transactions involve risks, which include (among others) the risk of adverse or unanticipated market, financial or political developments.

• To the fullest extent permitted by law, GML, its officers, employees, related bodies corporate, agents and advisors do not make any representations or warranty, express or implied, as to the currency, accuracy, reliability or completeness of any information, statements, opinions, estimated, forecasts or other representations contained in this presentation. No responsibility for any errors or omissions from this arising out of negligence or otherwise is accepted.

• Any forward looking statements included in this document involve subjective judgment and analysis and are subject to uncertainties, risks and contingencies, many of which are outside the control of, and may be unknown to, GML. In particular, they speak only as of the date of this document, they assume the success of GML’s strategies, and they are subject to significant regulatory business, competitive and economic uncertainties and risks. Actual events may vary materially from the forward-looking statements and the assumptions on which the forward-looking statements are based. Recipients of this document are cautioned to not place undue reliance on such forward-looking statements.

Competent Person Statement

• The information in this presentation that relates to Exploration Results and Mineral Resources has been extracted from various GML ASX announcements and are available to view on the GML website at www.gatewaymining.com.au or through the ASX website at www.asx.com.au (using ticker code “GML”)

• GML confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

Exploration Targets Cautionary Statement

• This presentation may comment on and discuss Gateway Mining Limited’s exploration in terms of target size and type. The information relating to Exploration Targets should not be misunderstood or misconstrued as an estimate of Mineral Resources or Ore Reserves. The potential quantity and quality of material discussed as Exploration Targets is conceptual in nature since there has been insufficient work completed to define them as Mineral Resources or Ore Reserves. It is uncertain if further exploration work will result in the determination of a Mineral Resource or Ore Reserve.

• Any Exploration Targets referred to in this presentation are not Mineral Resources. The Potential quantity and grade of the Exploration targets are conceptual in nature and there has been insufficient exploration to determine a Mineral Resource. There is no certainty that additional exploration work will result in the estimation and reporting of Mineral Resources.

Building a Significant Gold Company in the North Murchison 3

TIER-1 LOCATION ▪ 1,000km[2] Montague Gold Project, 800km NE of Perth ▪ ROBUST Project Mineral Resource totaling 526,000oz (Indicated and Inferred[1] )[2] RESOURCE ▪ Part of a significant gold endowed system – large-scale targets

RECENT ▪ Julias deposit – 77,000oz added from a new discovery EXPLORATION SUCCESS ▪ Three new deposits discovered in two years ▪ Large-scale Achilles East granitoid-hosted gold zone MAJOR

DISCOVERY ▪ 4km long Caledonian-Montague Shear target FOCUS ▪ Conceptual targeting exercise underway ▪ Experienced and successful technical team with strong track record CORPORATE STRENGTH ▪ Recent board progression to drive next phase of growth ▪ Supportive top-20 shareholders

TIER-1 LOCATION

==> picture [240 x 416] intentionally omitted <==

1 10,073,000 tonnes @1.6g/t for 526,000 ounces of contained gold. See ASX announcement dated 27 September 2022 2 507,00ozs attributable GML – 9,596,000t @ 1.6g/t for 507,000 ounces of contained gold. See ASX announcement dated 27 September 2022

Corporate Summary 4

Debbie Fullarton Non-Executive Chair BOARD OF DIRECTORS	Debbie Fullarton Non-Executive Chair BOARD OF DIRECTORS
Debbie Fullarton
Mark Cossom	Managing Director
Trent Franklin	Non-Executive Director
Peter Lester	Non-Executive Director
Scott Brown	Non-Executive Director
Kar Chua	Company Secretary

CAPITAL STRUCTURE
ASX Ticker		GML
Shares on issue		226,010,961
Executive Performance Options		3,300,000
Cash balance as at 30 Sep 2022		$1.80M
Listed Investments as at 30 Sep 2022*		$1.34M
Share Price		$0.06
Market Capitalisation		$13.56M
Enterprise Value		$10.42M

MAJOR SHAREHOLDERS
Harmanis Holdings		12.29%
OMNI GeoX		6.75%
L11 Capital		3.40%
Enable Investment		2.55%
Top 20		41.93%
Directors(Directly & Indirectly)		12.76 %

• Includes: 116,798,363 shares in DiscovEx Resources Ltd (ASX: DCX ) 20,000,000 shares in Strickland Metals Ltd (ASX: STK* )

Highly Successful and Experienced Leadership Team ▪ Executive Director since October 2019 5 ▪ Mark Cossom Geologist with +25-years experience in gold exploration, mine operations and corporate management ▪ Managing Director Former General Manager - Geology & Exploration at Doray Minerals Ltd

• Former Principal Geologist (SE Asia) at Harmony Gold Ltd

• Chartered Accountant with +30 years experience in various senior corporate and financial roles

Debbie Fullarton Non-Exec Chair

• Former Chief Executive Officer of Westgold Ltd

• Former Director of Auris Minerals Ltd

• Director of De Beers Australia Exploration Ltd

• Experienced Corporate Advisor holding qualifications in Geology and Finance

Trent Franklin Non-Exec Director

• Managing Director of Enrizen Financial Group

• Non-Executive Director of Strickland Metals Ltd

• Former Director of the Australian Olympic Committee Inc. and Australian Water Polo Inc.

• Mining Engineer with +40 years experience in various senior operational and corporate roles with Newcrest Mining Ltd, Oxiana/OZ Ltd and Citadel Resources Group Ltd

Peter Lester Non-Exec Director

• Former Non-Executive Chair of Doray Minerals Ltd

• Non-Executive Chair Helix Resources Ltd and Aurora Energy Metals Ltd

Scott Brown Non-Exec Director

• Company Director with +25 years of broad experience in both the public and private sector

• +35-year experienced explorer and project developer

• Led the highly successful exploration team at nickel producer Jubilee Mines Ltd

Peter Langworthy Technical Consultant

• Former Technical Director of Talisman Mining Ltd

• Founding Director of Capricorn Metals Ltd

• Founding Director of Northern Star Resources Ltd

==> picture [139 x 399] intentionally omitted <==

Tier 1-Location Great address, prime position for consolidation 6

==> picture [260 x 344] intentionally omitted <==

Demonstrated Resource Growth Building a strategic base through discovery 7

==> picture [520 x 408] intentionally omitted <==

▪ Over 70% Resources located within upper 100m – shallow, high-grade ounces

• Includes high-grade Indicated Resource of 142,000oz at 2.1g/t[1]

• Maiden Resources for Julias (77koz), Evermore (67koz) and Achilles North/Airport (99koz) discoveries delivered in 2022

• Substantial scope for further growth

1 2,148,000 tonnes @ 2.1g/t for 142,000 ounces of contained gold. See ASX announcement dated 27 September 2022.

Step-Change Discovery Focus Taking Montague to the next level 8

==> picture [519 x 408] intentionally omitted <==

==> picture [282 x 358] intentionally omitted <==

Achilles East Large-scale potential next to 99,000oz Achilles Resource 9

▪ New zone – over 150m wide, 600m along strike and open

▪ Broad scale mineralisation in granodiorite

▪ Significant new RC intercepts:

• GRC945: 12m @ 5.6g/t Au from 56m

• GRC941: 18m @ 2.0g/t Au from 31m within 30m @ 1.3g/t Au from 31m

• GRC931: 14m @ 1.6g/t Au from 68m within 63m @ 0.6g/t Au from 21m

• GRC929: 22m @ 1.0g/t Au from 115m within 54m @ 0.5g/t from 112m

• Corresponding to significant historic RC intercepts

• WRC012: 147m @ 0.4g/t Au from 21m

• AGRC001: 120m @ 0.4g/t Au from 80m

• WRC011: 47m @ 0.7g/t Au from 76m

• Clear geophysical anomaly in granodiorite over 4km long

▪ Reminder of large-scale prospectivity

==> picture [358 x 503] intentionally omitted <==

Caledonian-Evermore Corridor Major mineralised shear only tested to 250m 10

• Major shear zone host to three historic pits and +230,000oz gold Resources over +4km

• First primary-zone drilling below Caledonian

  • GRRC1005: 13m @ 1.4g/t Au from 101m

• Deepest hole only 250m below surface

▪ GDD023: 3.2m @ 5.0g/t Au

• GRRC912: 18m @ 0.5g/t Au from 106m

▪ Same style mineralisation as Montague-Boulder

▪ Open to the north of Evermore

==> picture [884 x 243] intentionally omitted <==

Building our Pipeline Looking to move the needle 11

▪ 1,000km[2] of under-explored, mineralised Gum Creek Greenstone Belt

▪ Focusing on step-change additions to the current Resources

▪ Model Earth consultants retained for conceptual targeting study

▪ Building on increased understanding of last two years

• Current air-core program testing new gold prospects

▪ Expanded use of fine fraction soil geochemistry

• Major field programs for 2023

==> picture [355 x 503] intentionally omitted <==

Julias – Flametree Another new shallow, oxide gold discovery 12

• Shallow, oxide gold trend first drilled by Gateway in 2008

• 77,000oz initial Mineral Resource (58,000oz attributable GML)[1]

• Located on granted Mining Lease

• Julias RC results confirm solid mineralisation over 500m:

• GRC796: 11m @ 6.0g/t Au from 58m

• GRC760: 13m @ 3.2g/t Au from 67m

• GRC763: 10m @ 3.0g/t Au from 38m, and

2m @ 2.4g/t Au from 60m

• Continued potential to extend the initial Resource

• Significant widths of oxide gold mineralisation intersected for over 700m south: ▪ GWAC1034: 4m @ 8.3g/t Au from 56m

• GWAC0965: 24m @ 1.4g/t Au from 16m

• GWAC1023: 5m @ 1.9g/t Au from 36m

• Emerging as a significant new oxide gold corridor at Montague

==> picture [365 x 515] intentionally omitted <==

----- Start of picture text -----

12
----- End of picture text -----

1 Julias located on M57/427 which is owned 75% GML 25% Red 5 Ltd

Montague-Boulder Deposit Robust Indicated and Inferred Base 13

▪ 163,000oz Mineral Resource

▪ Includes high-grade 67,000oz @ 4.0g/t Au Indicated[1]

▪ Located on granted Mining Lease

• Recent drilling continuing to extend shallow mineralisation: ▪ GRC895: 4m @ 8.7g/t Au from 14m, and

▪ GRC873: 4m @ 2.3g/t Au from 5m

• Further potential for growth within the granodiorite:

  • GRC873: 5m @ 3.6g/t Au from 139m

  • GRC583: 5m @ 2.7g/t Au from 115m (Granodiorite host)

  • ▪ GRC696: 7m @ 3.0g/t Au from 84m (Granodiorite host)

• 1 522,000t @ 4.0g/t for 67,000oz Indicated; 1,556,000t @ 1.2g/t for 96,000oz Inferred. See ASX announcement dated 14 December 2021 2 See ASX Release dated 28 April 2021

==> picture [484 x 511] intentionally omitted <==

Evermore Deposit Emerging shallow discovery with substantial upside 14

==> picture [416 x 397] intentionally omitted <==

▪ New discovery in October 2020

▪ Maiden Inferred Mineral Resource 67,000oz[1]

▪ Similar geology to Montague-Boulder

▪ Located between Montague-Boulder and Whistler (120,000oz[2] ) ▪ Dec 2021 RC drilling has opened the northern strike extensions

▪ Drilling within the granodiorite “nose” toward Whistler:

▪ GRC717: 21m @ 1.7g/t Au from 132m including 2m @ 9.3g/t Au ▪ Potential to extend known mineralisation and join together

1 1,319,000t @ 1.6g/t for 67,000oz Inferred. See ASX announcement dated 14 December 2021 2 1,700,000t @ 2.2g/t for 120,000oz Inferred. See ASX announcement dated 3 October 2019

Achilles/Airport Deposit Extensive oxide gold zone – still open 15

▪ Oxide gold discovery made by Gateway in 2019

▪ Shallow 99,000oz Resource, including 221,000t @ 2.0g/t for 14,000oz Indicated[1]

• Located on granted Mining Lease

▪ Systematically RC drilled +500m along strike from Rosie pit

▪ Recent near surface, high-grade oxide results outside of Resource:

▪ GRC924: 9m @ 1.0g/t Au from 9m; and

7m @ 2.2g/t Au from 59m

▪ GRC923: 6m @ 1.0g/t Au from 14m; and

7m @ 1.0g/t Au from 24m

▪ Part of an emerging large gold corridor

1 221,000t @ 2.0g/t for 14,000oz Indicated, 1,847,000t @ 1.4g/t for 85,000oz Inferred. See ASX announcement dated 14 December 2021

==> picture [366 x 516] intentionally omitted <==

Summary 16

Key Investment Takeaways 17

LOCATION ▪ Focused gold explorer in a Tier-1 district FOCUSED ON ▪ Over 60,000m of drilling in 2022 and beyond to expand the RESOURCE current 526koz Resource[1] GROWTH SHALLOW ▪ Large under-explored gold system with clear potential for OUNCES, multiple sizeable deposits BIG SYSTEM SUCCESS ▪ Experienced and successful board and management team with strong track record and diverse skill set

==> picture [213 x 279] intentionally omitted <==

1 10,073,000 tonnes @1.6g/t for 526,000 ounces of contained gold. 507,000 ounces attributable GML. See ASX announcement dated 27 September 2022.

17

18

==> picture [153 x 213] intentionally omitted <==

==> picture [393 x 541] intentionally omitted <==

Thank You

Annual General Meeting | November 2022 Mark Cossom, Managing Director