GATEWAY MINING LIMITED — Investor Presentation 2021

Dec 15, 2021

==> picture [961 x 58] intentionally omitted <==

Delivering RESOURCE growth and DISCOVERY success at Gidgee

• Resource recently upgraded to 449,000 ounces

• • Shallow, accessible deposits – predominantly in top 100m • Clear strategy to systematically grow Resources in 2022

Investor Update | December 2021 | Mark Cossom, Managing Director

1

Important Notice and Disclaimer

==> picture [33 x 33] intentionally omitted <==

Forward Looking Statements

• 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.

2

Building the next significant gold camp in WA’s Murchison

==> picture [33 x 33] intentionally omitted <==

TIER-1 LOCATION

ROBUST RESOURCE GROWTH

==> picture [21 x 20] intentionally omitted <==

==> picture [21 x 20] intentionally omitted <==

• Singular focus – 1,000km[2] Gidgee Gold Project, 800km NE of Perth

• Recently delivered 87% increase in Resource to 449,000oz (Indicated and Inferred[1] )

• Maiden Resources for new discoveries at Achilles North/Airport (99,000oz) and Evermore (67,000oz)

• ▪ Strong focus on shallow, oxide mineralisation

==> picture [291 x 247] intentionally omitted <==

STRONG EXPLORATION PIPELINE

SKILLED TEAM

==> picture [21 x 21] intentionally omitted <==

==> picture [21 x 20] intentionally omitted <==

• Clear strategy of evaluating numerous shallow targets with 5km radius of existing deposits

• Focused field programs to advance this strategy

• ▪ Experienced and successful technical team with strong track record

==> picture [286 x 180] intentionally omitted <==

3

1 8,165,000 tonnes @1.7g/t for 449,000 ounces of contained gold. See ASX announcement dated 14 December 2021.

==> picture [961 x 58] intentionally omitted <==

The opportunity

4

Seizing the Opportunity

==> picture [33 x 33] intentionally omitted <==

Gateway Mining is focused on systematic and costeffective exploration aimed at establishing a significant gold Mineral Resource base in one of WA’s emerging goldfields…

5

A Highly Prospective Gold Setting – With Minimal Drilling

==> picture [33 x 33] intentionally omitted <==

• Analogous to several major gold camps in the WA goldfields:

▪ ~9km long major gold-rich shear zone along the western margin of the Granodiorite Dome

• Highly prospective Eastern Margin not explored – Howards/Kashmir

• Majority of previous drilling ineffective:

• Only 10% of drilling >50m depth

▪ Strategy of defining a series of deposits within 5km of each other to establish a critical mass for project development

==> picture [545 x 410] intentionally omitted <==

6

A S stematic A roach y pp

==> picture [33 x 33] intentionally omitted <==

Four-pronged strategy to deliver Resource growth:

1. Extension of existing Resources from 1990’s oxide open pit mining:

• Montague-Boulder –163,000oz Indicated & Inferred

• Whistler –120,000oz Inferred (to be updated 2022)

2. Systematic, disciplined exploration leading to new discoveries:

• Achilles North/Airport – 99,000oz Indicated & Inferred

• Evermore – 67,000oz Inferred

3. Development of next generation of targets:

• Julias, Kashmir, Monarch

4. Inorganic growth through identification of regional opportunities

==> picture [535 x 382] intentionally omitted <==

7

The Pathway to Resource Growth

==> picture [33 x 33] intentionally omitted <==

==> picture [701 x 250] intentionally omitted <==

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

TARGET DRILL RESOURCE MINERAL
GENERATION TESTING DEVELOPMENT RESOURCES
Woodley,
Julias, Montague – Boulder,
Season Well,
Monarch, Whistler,
Whistler Nose, Whistler Upgrade
Plymouth, Evermore,
Rosie East,
Kashmir Achilles North
Hot Diggety, Barrel Maker
12-Month Focus Near-Term Focus Near-Term Focus ✓
----- End of picture text -----

DATA GENERATION

VALUE ADDITION

8

==> picture [961 x 58] intentionally omitted <==

Demonstrated Resource growth

9

Recent 87% Resource Upgrade

==> picture [33 x 33] intentionally omitted <==

==> picture [653 x 466] intentionally omitted <==

10

Montague Resource – Robust Indicated & Inferred Base

==> picture [33 x 33] intentionally omitted <==

==> picture [344 x 228] intentionally omitted <==

==> picture [344 x 234] intentionally omitted <==

▪ 163,000oz Mineral Resource

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

• Located on a granted Mining Lease

• Preliminary metallurgical test work indicates free-milling

characteristics[2]

▪ Further potential for growth within the granodiorite: ▪ 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

11

New Resources – Evermore Discovery

==> picture [371 x 470] intentionally omitted <==

▪ New high-grade discovery in October 2020

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

▪ Similar geology to Montague-Boulder

▪ ~11,200m of RC and diamond drilling completed since discovery

▪ High-grade mineralisation in multiple hosts:

▪ GRC550: 15m @ 3.0g/t Au from 104m and

▪ 10m @ 9.2g/t Au from 140m

▪ GRC630: 7m @ 11.7g/t Au from 97m ▪ GRC651: 12m @ 5.6g/t Au from 78m ▪ GRC566: 8m @ 3.0g/t Au from 92m (Montague Shear) ▪ GRC534: 6m @ 6.1g/t Au from 88m (Montague Shear)

▪ Significant potential for additions in areas of wide-spaced drilling

1 1,319,000t @ 1.6g/t for 67,000oz Inferred. See ASX announcement dated 14 December 2021

==> picture [33 x 33] intentionally omitted <==

12

New Resources – Achilles North/Airport

==> picture [334 x 468] intentionally omitted <==

▪ 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 a granted Mining Lease

▪ Systematically RC drilled 500m along strike from Rosie pit

• Near surface, high-grade oxide results include:

• GRC507: 14m @ 1.0g/t Au from 3m

• GRC733: 11m @ 1.1g/t Au from 2m & 10m @ 1.2g/t Au from 43m

• ▪ GRC735: 5m @ 3.0g/t Au from 107m

• GRC508: 7m @ 2.5g/t Au from 61m & 6m @ 1.5g/t Au from 45m

• GRC446: 21m @ 2.1g/t Au from 32m

• ▪ GRC447: 13m @ 3.4g/t Au from 5m

• ▪ GRC430: 11m @ 3.0g/t Au from 32m

==> picture [33 x 33] intentionally omitted <==

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

13

Resource Additions Create Value Opportunity

==> picture [33 x 33] intentionally omitted <==

• EV$/oz Resources below industry peers

• Major Resource upgrade significantly undervalued

• Increase in overall ounces

• Addition of higher-confidence, high-grade Indicated Resources

▪ Significant re-rate potential

==> picture [568 x 375] intentionally omitted <==

• Sourced from various company presentations and releases available via ASX platform

14

==> picture [961 x 58] intentionally omitted <==

What are the next steps in the strategy?

15

Continuing to Build the Pipeline

==> picture [33 x 33] intentionally omitted <==

==> picture [658 x 469] intentionally omitted <==

16

The Next Generation – Julias

==> picture [33 x 33] intentionally omitted <==

==> picture [333 x 470] intentionally omitted <==

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

▪ Located on a granted Mining lease

▪ Significant widths of oxide gold mineralisation intersected over 1.2km:

13m @ 4.0g/t Au from 30m

▪ GWAC0971:

3m @ 7.2g/t Au from 26m

▪ GWAC0972: ▪ GWAC0974: ▪ GWAC0978:

14m @ 1.1g/t Au from 37m

7m @ 1.6g/t Au from 22m; and

1m @ 8.6g/t Au from 41m

24m @ 1.4g/t Au from 16m

▪ GWAC0965:

▪ Indicates mineralisation joins with Flametree target to south

▪ Julias trend completely open to north-east

▪ RC drilling completed Dec Qtr 2021, results pending

▪ In-fill RC drilling and extensional air-core drilling planned Feb 2022

17

The Next Generation – Kashmir

==> picture [351 x 466] intentionally omitted <==

• Major 2.5km-long gold-in-soil anomaly defined by Gateway 2019-2020

• Directly along strike of 204koz Howards Resource (ASX : HRN)

• Located on unexplored Montague eastern margin

• First-pass wide-spaced RC testing in 2020 intersected high grade gold:

• GRC520: 2m @ 7.9g/t Au from 3m (mafic hosted)

• GRC524: 1m @ 8.8g/t Au from 59m (mafic hosted)

• GRC522: 2m @ 1.6g/t Au from 105m (granodiorite)

• Follow-up RC drilling completed in Dec Qtr 2021, results pending

• Potential to open up the entire 8km long eastern margin

Recent Horizon Gold (ASX : HRN) results*: 77m @ 1.1g/t Au from 64m 65m @ 1.2g/t Au from 0m 28m @ 1.5g/t Au from 102m

==> picture [33 x 33] intentionally omitted <==

*See HRN ASX announcement dated 30 August 2021

18

The Next Generation – Monarch

==> picture [348 x 462] intentionally omitted <==

▪ Major gold-in-soil anomaly defined by Gateway over 5.8km strike

▪ Associated with significant historical workings

• Next to no previous exploration – five shallow (>50m) deep RC

holes in 1985

• Gateway surface rock chip sampling results up to 18.7g/t Au

▪ RC drilling to commence early-2022

• Air-core drilling to extend anomaly south under creek system

==> picture [33 x 33] intentionally omitted <==

19

==> picture [961 x 58] intentionally omitted <==

The Big Picture

20

▪ RC program completed Nov/Dec 2021 – Julias, Kashmir

• Samples submitted, assays pending

• Extensive +3-month RC and air-

core drilling campaign to commence Jan/Feb 2022:

• Whistler Resource upgrade to commence Jan 2022

==> picture [33 x 33] intentionally omitted <==

Near-Term News-flow

==> picture [584 x 417] intentionally omitted <==

21

12-Month Tar et – Bi er Picture g gg

==> picture [33 x 33] intentionally omitted <==

▪ 1 Woodley – Extensive alluvial gold workings, with soil anomaly

▪ 2 Season Well – Interpreted blind granodiorite intrusion

▪ 3 Whistler Nose – Continuation of Whistler mineralisation around granodiorite nose

5 3 6 4 2 1

▪ 4 Rosie East – Extensive zones of granodiorite hosted gold mineralisation

▪ 5 Hot Diggety – Several historic RAB intercepts to be followed up

▪ 6 Barrelmaker – Several historic RAB intercepts to be followed up

22

==> picture [961 x 58] intentionally omitted <==

Summary

23

Cor orate Summar p y

==> picture [33 x 33] intentionally omitted <==

CAPITAL STRUCTURE

ASX Ticker	GML
Shares on issue1	2,240,540,171
Executive Performance Options	32,000,000
Cash balance as at 30 Sept 2021	$1.68M
Capital Raising 1 Nov 20211	$5.72M
Listed Investments as at 30 Sept 2021	$1.80M
Share Price	$0.015
Market Capitalisation	$33.6M

==> picture [399 x 211] intentionally omitted <==

MAJOR SHAREHOLDERS[1]

Harmanis Holdings	12.40%
OMNI GeoX	6.60%
L11 Capital	3.43%
Sharpless Investment	2.09%
Top 20	37.62%
Directors(Directly & Indirectly)	11.09%

BOARD OF DIRECTORS

Trent Franklin Non-Executive Chairman Mark Cossom Managing Director Debbie Fullarton Non-Executive Director Scott Brown Non-Executive Director Kar Chua Company Secretary

1 Does not include 16,036,784 new shares for $272,625 from the 1 November 2021 capital raise subject to approval by shareholders at the EGM scheduled for 16 December 2021

24

Highly Successful and Experienced Leadership Team

==> picture [33 x 33] intentionally omitted <==

Mark Cossom Managing Director

Trent Franklin Non-Exec Chairman

Debbie Fullarton Non-Exec Director

Scott Brown Non-Exec Director

Kar Chua Company Secretary

Peter Langworthy Technical Consultant

• Executive Director since October 2019

• 24-year experienced geologist with a background in gold exploration, mine geology and corporate management

• Former General Manager - Geology & Exploration at Doray Minerals Ltd

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

• Experienced Corporate Advisor holding qualifications in Geology/Geophysics, Finance, Financial Planning and Insurance Broking

• Chartered Accountant with 25 years experience in various senior corporate and financial roles

• Currently Chief Executive Officer for Westgold Ltd

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

• Chartered Accountant with extensive experience in company secretarial & finance roles

• 34-year experienced explorer and project developer

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

• 12 years of exploration and operational experience at WMC

• Former Executive Chairman at Gateway

• Former Technical Director at Talisman Mining Ltd

• Founding Director at Capricorn Metals Ltd

• Founding Director at Northern Star Resources Ltd

==> picture [190 x 443] intentionally omitted <==

25

LOCATION

RESOURCES

GROWTH

SUCCESS

==> picture [21 x 20] intentionally omitted <==

==> picture [21 x 20] intentionally omitted <==

==> picture [21 x 20] intentionally omitted <==

==> picture [21 x 20] intentionally omitted <==

==> picture [33 x 33] intentionally omitted <==

Key Investment Takeways

• Focused gold explorer with significant land-holding in a Tier-1 gold mining district

==> picture [319 x 416] intentionally omitted <==

• Recently upgraded 449,000oz Indicated and Inferred Resource[1]

• Largely shallow (top 100m) with significant oxide

• Significantly undervalued EV$/oz of $54/oz

• Large gold system with clear potential for multiple sizeable deposits

• Clear strategy for building continual Resource growth with 5km radius

• Experienced and successful management team with strong track record

1 8,165,000 tonnes @1.7g/t for 449,000 ounces of contained gold. See ASX announcement dated 14 December 2021.

26

==> picture [961 x 58] intentionally omitted <==

Thank you . Questions.

Investor Update | December 2021 | Mark Cossom, Managing Director

27