GIBB RIVER DIAMONDS LIMITED — AGM Information 2021

Nov 11, 2021

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AGM Presentation 12 November 2021

Edjudina Gold – 100% Iroquois Zn-Pb – 20% Free Carry Highland Plains Phosphate – 100% Ellendale Diamonds – Option Sale Pending All Projects in Western Australia or NT

GIB is an ASX Listed, Multi-commodity Exploration and Development Company

ASX Code: GIB

Total Shares on Issue Market Capitalisation	211,509,445
(undiluted at $0.08 per share)	$16.9 M
Cash on Hand (31 Sept)	$2.09 M
Due March 2022	$1.0 M
Due March 2023	$4.0 M
(Both payments contingent on
Ellendale Option)

Share Price History 12 Months

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Major Shareholders	Shares	% of Capital
Jim Richards	41,683,592	19.7
Other Directors	9,273,888	4.4
Total	1,483 Shareholders

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Neta Lodes Gold Discovery, Edjudina, Western Australia

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Board of Directors & Management

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Mr. Jim Richards BSc Hons (Geology), Executive Chairman

27 years experience in mining and exploration

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Non-Executive Director & Company Secretary Grant Mooney

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Non-Executive

Director Tom Reddicliffe

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Exploration Manager Michael Denny

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Summary of GIB Projects & Interests

1. Edjudina Gold Project, Eastern Goldfields, WA

GIB 100%

• Six drilling campaigns since project acquisition in July 2020

• Discovery of the Neta Lodes Prospect includes 36m at 3.97g/t from 4m

• Mining Lease applied for over Neta Lodes

2. Iroquois Zn-Pb Discovery, WA

STK JV, GIB 20% Free-carry to BFS

• Assays for STK hole IQRC001 include 5m @ 2.9% Zn + Pb from 23m 22m @ 2.2% Zn + Pb from 37m 23m @ 5.5% Zn + Pb from 108m (further new drill hole assays pending)

3. Ellendale Diamond Project

GIB 100% with BDM Option to Purchase 100%

• March 2021 GIB entered into a staged two year Option with Burgundy Diamond Mines (BDM) which gives BDM the right to purchase 100% of the Ellendale Diamond Project

• Total transaction is $6.7 million in cash, 16 million BDM shares, and a 1.5% gross revenue royalty. $1.7m and 4 million BDM shares have already been received

• 4. Highland Plains Phosphate Project, NT GIB 100%

• Total JORC (2004) compliant Inferred Resource: 53 million tonnes at 16% P2O5

• 5. Shares in Accelerate Resources Limited (ASX: AX8)

GIB 100%

• GIB owns 3 million shares in AX8 (last traded at 4.9 cents per share)

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Edjudina Gold Project – GIB 100% Eastern Goldfields, Western Australia

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• Shallow/outcropping gold lodes

• Discovery of Neta Lodes prospect includes 36m @ 3.97g/t. Numerous high grade intersections

• Gawler and Perseverance both indicate excellent grades

• Multiple parallel lines of nearly continuous historic gold workings over 13km

• Historic production figures for the Edjudina field are 39,476 ounces of gold at a grade of 41.0g/t,

• Active haul road runs through the tenement to the Carosue Dam mill complex 45km to the south west

• Mining Lease application over Neta Lodes

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Edjudina Gold Project – Discovery at Neta Lodes

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GIB Discovery at Neta Lodes

36m at 3.97g/t from 4m 18m at 3.10g/t from 28m 24m at 1.44g/t from surface 8m at 2.91g/t from 26m 14m at 1.20g/t from 1m 21m at 1.74g/t from 38m 1m at 35.0g/t from 7m 29m at 0.86g/t from surface

• mineralisation is soft argillic and hematite/limonite altered phyllite, no sulphides

• 5 phases of drilling have extended Neta Lodes

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Edjudina Gold Project Neta Lodes Discovery

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Drilling at Neta Lodes Discovery

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Carlsen Lode: outcrop in artisanal workings 1m @ 5.95 g/t

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Neta Lodes – Cross Sections, Hinge Target

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Edjudina Neta Long Section: Higher Grade Core

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Edjudina Gold Project – Lookahead

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Edjudina Gold Project: some of the historic gold workings which extend for over 13km of strike

Upcoming Activity – Focused on Discovery:

• Aircore drilling Ace of Hearts Cover Target (underway)

• Drill Hinge Target at Neta Lodes

• Step-out and infill drilling at Neta, Perseverance and Gawler Prospects

• Ongoing metallurgical testing

• Continue exploration of multiple parallel lines of nearly continuous historic gold workings over 13km

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Iroquois Zn-Pb Project, Earaheedy Basin, WA STK 80%; GIB 20% Free-carry to BFS

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• The Iroquois Zn-Pb discovery is located along strike from Rumble Resources Limited’s Chinook Zinclead Project

• Assays for STK hole IQRC001:

5m @ 2.9% Zn + Pb from 23m

22m @ 2.2% Zn + Pb from 37m

23m @ 5.5% Zn + Pb from 108m

• Further assays pending

• Drilling ongoing

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Iroquois Zn-Pb Project, Earaheedy Basin, WA

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Iroquois Zn-Pb Project, Earaheedy Basin, WA

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IQRC 001 (137-138m) Galena and sphalerite mineralisation assayed 8.9% Zn & 12.7% Pb

• Assays are pending from 3 RC holes

• Up to a further 8 x RC holes are underway*

Information regarding the Iroquois Project is from Strickland Metals Limited ASX Announcements 13

Ellendale Diamond Project, Kimberley, WA GIB 100% with BDM Option to purchase 100%

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Ellendale Diamond Project – Extensive historical Mining Activities

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Ellendale Diamond Project Option

• In March 2021 GIB entered into a staged two year Option with Burgundy Diamond Mines (BDM) which gives BDM the right to purchase 100% of the Ellendale Diamond Project (BDM’s election)

• Total transaction is $6.7 million in cash, 16 million BDM shares, and a 1.5% gross revenue royalty

• First Payment of $1.7m and 4 million BDM shares have already been received. Two further staged payments are required to proceed with the transaction and are at Burgundy’s election

Second Payment: March 2022, BDM to pay GIB A$1 million in cash and issue to GIB 5 million fully paid ordinary shares in BDM

Third Payment: March 2023 BDM to pay GIB A$4 million in cash and issue to GIB 7 million fully paid ordinary shares in BDM. This payment exercises the Option

BDM will also pay GIB a 1.5% gross revenue royalty on the diamonds obtained from the tenements, including during the Option period

BDM plans are well advanced at Ellendale and a ‘state-of-the-art’ mobile bulk sampling plant is completed and scheduled for delivery to WA in the December 2021 quarter (STK Quarterly Sept 2021)

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Highland Plains Phosphate Project - GIB 100%

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• JORC (2004) Inferred Resource: 53 million tonnes at 16% P O with a 10% 2 5

• P O 2 5 cut

• The Western Mine Target Zone (WMTZ) is shallower and has a higher grade JORC Inferred Resource of 14 million tonnes at 20% P2O5 with a 15% P2O5 cut (a sub-set of the total resource)

• NAIF funding potential

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Disclaimer

This presentation is an overview of the Company prepared with good intention. It is not a prospectus and offers no securities for subscription or sale in any jurisdiction, nor a securities recommendation. All information necessary for investment decisions is not contained herein and investors are encouraged to conduct their own research of Gibb River Diamonds Limited in conjunction with legal, tax, business and financial consultation.

Gibb River Diamonds Limited, its directors, officers, employees and agents disclaim liability for any loss or damage suffered by reliance on information contained in this report when making investment decisions. In addition, no express or implied representation or warranty is given in relation to the completeness and sufficiency of the information, opinions or beliefs contained in this document or any other written or oral information made or to be made available to any interested party or its advisors.

This presentation may refer to the intention of Gibb River Diamonds Limited but it does in no way intend to forecast forward looking statements or future matters for the purposes of the Corporations Act or any other law. Future events are subject to risks and uncertainties, and as such results, performance and achievements may in fact differ from those referred to in this presentation.

With the exception of fraud, no liability is accepted for any loss, cost or damage suffered or incurred by the reliance on the sufficiency or completeness of the information, opinions or beliefs contained forthwith.

Research, evaluation and analysis of the business, data and property are encouraged before making financial investments. Any estimates, projections or opinions contained herein may involve subjective judgment, analysis and interpretation, and satisfaction of ones own decisions should be undertaken.

We caution you not to place undue reliance on our forward-looking statements, which speak only as of the date of this presentation, and we undertake no obligation to update this information.

The information in this presentation that relates to Exploration Results, Exploration Targets, Mineral Resources or Ore Reserves is based on information compiled by Mr Jim Richards who is a Member of The Australasian Institute of Mining and Metallurgy. Mr Richards is a Director of Gibb River Diamonds Limited. Mr Richards has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Exploration Targets, Mineral Resources and Ore Reserves. Mr Richards has consented to the inclusion in this presentation of the matters based on information in the form and context in which it appears.

The Company is not aware of any new information or data that materially affects the information included in the previous announcement (JORC 2012) have not materially changed.

The Information in this report that relates to Highland Plains Mineral Resources is based on information compiled by Mr Jim Richards who is a member of the Australasian Institute of Mining and Metallurgy. Mr Richards is an employee of GIB and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as a competent Person as defined in the December 2004 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Richards consents to the inclusion in this report of the Information, in the form and context in which it appears.

AThe Company is not aware of any new information or data that materially affects the information included in the previous announcement (JORC 2004) and that all of the previous assumptions and technical parameters underpinning the estimates in the previous announcement/year have not materially changed.

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For further information Contact:

Jim Richards Executive Chairman T +61 8 9422 9500 E info@gibbriverdiamonds.com 1/16 Ord Street, West Perth, WA 6005 gibbriverdiamonds.com

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ASX Code: GIB

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