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ORA BANDA MINING LTD — Investor Presentation 2021
Mar 16, 2021
65475_rns_2021-03-16_540766c9-bde4-476c-8ed1-4b9dfdc8ae80.pdf
Investor Presentation
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AUSTRALIA’S NEWEST GOLD PRODUCER APAC 121 Conference 17 - 19 March 2021
IMPORTANT NOTICE
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No reliance:
This presentation is a document that has been prepared by Ora Banda Mining Limited (“Company”, “OBM” or “Ora Banda”) for the purpose of providing a company and technical overview to interested investors. None of the Company, nor any of its related bodies corporate, their respective directors, partners, employees or advisers or any other person ("Relevant Parties") makes any representations or warranty to, or takes responsibility for, the accuracy, reliability or completeness of the information contained in this document, to the recipient of this document (“Recipient”), and nothing contained in it is, or may be relied upon as, a promise or representation, whether as to the past or future. Recipients of the document must make their own independent investigations, consideration and evaluation. By accepting this document, the Recipient agrees that if it proceeds further with its investigations, consideration or evaluation of investing in the Company, it will make and rely solely upon its own investigations and inquiries, and not upon this document.
Limited disclosure:
The information in this presentation does not purport to be complete, nor does it contain all the information that would be required in a disclosure statement or prospectus prepared in accordance with the Corporations Act 2001 (Cth). It should be read in conjunction with the Company’s other periodic and continuous disclosure announcements lodged with the Australian Securities Exchange, which are available at www.asx.com.au.
Seek your own advice:
This presentation is not a recommendation to acquire Company shares and has been prepared without taking into account the individual objectives, financial situation or needs of interested individuals. Before making an investment decision prospective investors should consider the appropriateness of the information having regard to their own objectives, financial situation and needs and seek appropriate financial, legal, taxation and other appropriate advice. Except to the extent prohibited by law, the Relevant Parties disclaim all liability that may otherwise arise due to any of this information being inaccurate or incomplete. By obtaining this document, the Recipient releases the Relevant Parties from liability to the Recipient for any loss or damage that it may suffer or incur arising directly or indirectly out of or in connection with any use of or reliance on any of this information, whether such liability arises in contract, tort (including negligence) or otherwise.
No offer to acquire Company shares:
This presentation is not, and should not be considered, an invitation to acquire Company shares or any other financial products, and neither this document nor any of its contents will form the basis of any contract or commitment. In particular, this document does not constitute any part of any offer to sell, or the solicitation of an offer to buy, any securities in the United States or to, or for the account or benefit of any ‘US person’ as defined in Regulation S under the U.S. Securities Act of 1993 (“Securities Act”). The Company’s shares have not been, and will not be, registered under the Securities Act or the securities laws of any state or other jurisdiction of the United States, and may not be offered or sold in the United States or to any US person without being so registered or pursuant to an exemption from registration.
Forward-looking statements:
This presentation contains forward-looking statements which may be identified by words such as "believes", "estimates", "expects', "intends", "may", "will", "would", "could", or "should" and other similar words that involve risks and uncertainties. These statements are based on an assessment of present economic and operating conditions, and on a number of assumptions regarding future events and actions that, as at the date of this presentation, are expected to take place.
Such forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties, assumptions and other important factors, many of which are beyond the control of the Company, the Directors and management of the Company. These and other factors could cause actual results to differ materially from those expressed in any forward-looking statements.
The Company has no intention to update or revise forward-looking statements, or to publish prospective financial information in the future, regardless of whether new information, future events or any other factors affect the information contained in this presentation, except where required by law.
The Company cannot and does not give assurances that the results, performance or achievements expressed or implied in the forward-looking statements contained in this presentation will actually occur and investors are cautioned not to place undue reliance on these forward-looking statements.
Competent Person Statements
The information in this presentation that relates to exploration results, and the Riverina, Riverina South, Waihi, Golden Eagle, Sand King, Missouri and Callion Mineral Resources is based on information compiled under the supervision of Mr Andrew Czerw, an employee of Ora Banda Mining Limited, who is a Member of the Australian Institute of Mining and Metallurgy. Mr Czerw has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which 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’. Mr Czerw consents to the inclusion in the report of the matters based on this information in the form and context in which it appears.
Sand King, Missouri, Riverina Riverina South, Waihi, Golden Eagle, and Callion Mineral Resources are reported in accordance with the JORC Code (2012). The Company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements dated 15 December 2016 (Missouri) and 3 January 2017 (Sand King), 2 December 2019 (Riverina), 4 February 2020 (Waihi), 8 April 2020 (Golden Eagle), 15 May 2020 (Callion), 9October 2020 (Riverina South) and restated in market announcement ‘Davyhurst Gold Project - Ore Reserve Update’ dated 26 May 2020. The Company further confirms that all material assumptions and technical parameters underpinning the Mineral Resource estimates in the relevant market announcements continue to apply and have not materially changed.
Mineral Resources other than Sand King, Missouri, Riverina, Riverina South, Waihi, Golden Eagle and Callion, were first reported in accordance with the JORC 2004 code in Swan Gold Mining Limited Prospectus released to the market on 13 February 2013. Mineral Resources other than Sand King, Missouri, Riverina, Riverina South, Waihi, Golden Eagle and Callion have not been updated to comply with JORC Code (2012) on the basis that the information has not materially changed since it was first reported.
The information in this presentation that relates to Ore Reserves is based on information compiled by Mr Geoff Davidson, who is an independent mining engineering consultant, and has sufficient relevant experience to advise Ora Banda Mining Limited on matters relating to mine design, mine scheduling, mining methodology and mining costs. Mr Davidson has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which 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’. Mr Davidson is a Fellow member of the Australasian Institute of Mining and Metallurgy. Mr Davidson is satisfied that the information provided in this statement has been determined to a feasibility level of accuracy, based on the data provided by Ora Banda Mining Limited. Mr Davidson consents to the inclusion in the presentation of the matters based on his information in the form and context in which it appears.
2
INVESTMENT HIGHLIGHTS
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-
Australia’s newest gold producer - first gold poured 7 February 2021
-
Financially robust project[1]
-
5.2 year mine life
-
81kozpa – average annual gold production
-
A$68.8M – average annual free cash flow (at A$2,550/oz gold price)
• Fully funded and debt-free
-
$32.6 million cash and no debt at 31 December 2020
-
$15.0 million facility terms agreed with CBA
-
Operations underpinned by high grade Ore Reserve
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Mining Reserve of 6.1Mt @ 2.4 g/t for 460,000oz Au[2]
-
Pre-Production Construction & Mining Programs Completed
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Two operating mines on line (Riverina Open Pit & Golden Eagle underground)
-
Process plant operational and 1.2Mtpa nameplate performance testing complete
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Continuing to build ore stocks
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Mineral Resource of 24.3Mt @ 2.8g/t for 2.2Moz Au[2]
-
Ongoing exploration program targeting upgrades to Resource classification
OBM’s 1,350km Perth[2] District Scale Landholding
-
Significant regional exploration potential in “District Scale” land holding
- 1,350km[2] of highly prospective greenstone belt with ~200 strike km
-
3 1. Refer to ASX Announcement dated 30 June 2020
2. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
CORPORATE OVERVIEW
Ora Banda Mining (ASX:OBM)
| Share Price_(8 March 2020)_ | A$/share | $0.26 |
|---|---|---|
| Shares on issue | M | 842.2 |
| Options on issue | M | 39.9 |
| Market Capitalisation | A$M | 219.0 |
| Cash_(31 December 2020)_ | A$M | 32.6 |
| Debt_(31 December 2020)_ | A$M | - |
| Enterprise Value | A$M | 186.4 |
Board of Directors
Peter Mansell
Non-executive Chairman
David Quinlivan Managing Director
Keith Jones
- Non-executive Director
Mark Wheatley
Non-executive Director
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Corporate lawyer with over 40 years’ experience
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Currently Non-executive Chairman of Energy Resources of Australia Limited (Rio Tinto)
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Mining engineer with significant mining and executive leadership experience
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• Currently Non-executive Chairman of Silver Lake Resources Limited
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Chartered accountant with 38 years’ industry experience
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Former Chairman of Deloitte Australia and currently Chairman of Coda Minerals Ltd
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Chemical engineer and former investment banker with +30 years in the mining industries
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• Non-executive Chairman of Prospect Resources Ltd
Management
Shareholders
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4.8%
Hawke's Point
25.3% Other Shareholders
46.6% Institutional Shareholders
NPS Mining Alliance
23.2%
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Peter Nicholson*
Chief Executive Officer
Tony Brazier
Chief Financial Officer
Andrew Czerw
GM Resource Development
Brendan Fyfe
General Counsel
Derek Byrne
GM Operations
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Mining engineer with over 25 years of mining, private equity and executive leadership
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• Currently non executive director of Ausenco Ltd
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Chartered accountant and senior finance professional with over 20 years’ experience across a range of industries including mining & metals, oil & gas, infrastructure and manufacturing
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Highly experienced geoscience professional with over 30 years of significant senior management experience in Australia and overseas
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Highly experienced legal professional with over 20 years of significant resource industry experience in Australia and overseas
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Highly experienced mining professional with over 35 years of significant mine leadership experience in both Australia and overseas
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Commencing April 2021
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DAVYHURST GOLD PROJECT
5
COMPELLING FINANCIAL METRICS1
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Recap of Key DFS Metrics
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DFS base case undertaken at A$2,100/oz gold price
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Significant upside to current gold price environment
-
At OBM’s “Base Case” gold price of A$2,100/oz Au, the Davyhurst Gold Project is forecast to deliver:
-
Post-tax free cash flow of A$175 million
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Average annual free cash flow of A$35 million
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Rapid payback of 14 months
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Post-tax NPV6% of A$137 million
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Post-tax IRR of 109% @ A$2,550/oz Au
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Carried forward tax losses of A$281 million (30 June 2020):
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Increases free cash flow in the early years
| Key DFS Outcomes | Unit | Base Case | Spot Case |
|---|---|---|---|
| Gold price | A$/oz | 2,100 | 2,550 |
| Gold produced (LOM) | Koz | 418 | |
| Gold produced (annual average – LOM) | Koz/yr | 81 | |
| Gold head grade (LOM, Ore Reserve) | g/t Au | 2.4 | |
| Gold recovery (LOM) | % | 90.3 | |
| Pre-production capital cost (including contingencies) | A$M | 45.1 | |
| Project payback | Months | 14 | 7 |
| All-in sustaining costs (AISC) (LOM) | A$/oz | 1,566 | 1,578 |
| Cash costs (C1) (LOM) | A$/oz | 1,427 | |
| Project free cashflow (post-tax) | A$M | 174.6 | 357.8 |
| Post-tax NPV (6% discount rate) | A$M | 137.4 | 290.7 |
| Post-tax IRR | % | 109.3 | 237.8 |
| Operating Costs | LOM (A$/t) | LOM (A$/oz) | |
| Mining(including road haulage & ROM loading) | 74.0 | 1,082 | |
| Processing | 20.1 | 293 | |
| Site General & Administration | 3.5 | 51 | |
| Cash costs (C1) | 97.6 | 1,427 | |
| Royalties | 3.6 | 53 | |
| Sustaining capital | 0.2 | 3 | |
| Corporate & exploration(including tenement rents & rates) | 5.8 | 84 | |
| AISC | 107.2 | 1,566 |
6 1. Refer to ASX Announcement dated 30 June 2020
CAPITAL PROGRAM COMPLETED WITHIN BUDGET
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Recap of Capital Works Program
• Processing plant
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direct procurement and remedial site works program to enable the processing plant to operate at its nameplate 1.2 Mtpa capacity
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indirect costs including off site project management, engineering design and temporary site facilities
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Infrastructure:
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Davyhurst camp upgrade & Riverina camp installation
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Installation of LNG facilities and new power station
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Communications upgrade
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Maintenance of site roadways
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Process and potable water bore field upgrades
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Tailings storage facility works
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First fills and spares
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Procurement, delivery and site storage of first fills including grinding media and initial plant chemicals (cyanide, lime, caustic, oxygen LPG).
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Procurement, delivery and site storage of critical operational and rotable spares for the processing plant
| Pre-Production Capital Costs | DFS A$M |
28 Feb A$M |
Forecast A$M |
|---|---|---|---|
| Processing plant – direct costs | 8.7 | 7.6 | 8.7 |
| Processing plant – indirect costs | 2.6 | 3.7 | 3.7 |
| Infrastructure / Miscellaneous Sustaining Capital | 10.4 | 9.0 | 9.0 |
| First fills, spare parts | 2.1 | 1.6 | 2.2 |
| Development capital expenditure | 23.8 | 21.9 | 23.6 |
| Pre-production mining costs | 19.3 | 20.6 | 20.6 |
| Pre-production capital cost | 43.1 | 42.5 | 44.2 |
| Contingency (processing plant & infrastructure) | 2.0 | 0.9 | |
| Total pre-production capital costs | 45.1 | 42.5 | 45.1 |
-
Mining
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Open Pit – all works associate with establishing site infrastructure at Riverina, mobilising of earthmoving fleet, clearing of the open pit, waste dump and other mine site areas, haul road construction and open pit mining activities through to 31 January 2021.
-
Underground - all works associate with establishing site infrastructure at Golden Eagle, mobilising of mining fleet, dewatering the underground workings, rehabilitation of all underground working areas and underground mining activities through to 31 January 2021
7
PRODUCER WITH NEAR TERM +80KOZPA TARGET1
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Current Operational Status
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81koz average annual gold production
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Production target of 481koz over current 5.2 year mine life
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Project works delivered on schedule and within budget:
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Riverina O/P & Golden Eagle U/G operational
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process plant operational and 1.2Mtpa nameplate capacity performance test criteria met
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first gold poured Q1, 2021
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currently in process plant ramp up period
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full process plant throughput rate scheduled from April 2021
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ANNUAL ORE TONNAGE & ORE GRADE MINED BY PIT
1400 3
2.58 2.53
2.44
1200
2.5
2.21
2.02
1000 1.95
2
800
1.5
600
1
400
0.5
200
0 0
2020 2021 2022 2023 2024 2025
Riverina Missouri Sand King Waihi
Callion Golden Eagle Grade
Thousands
Ore Tonnage (t)
Ore Grade (g/t Au)
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planning for commencement of mining operations at Missouri in progress
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Multiple production sources underpin long-life operation at Davyhurst
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Six deposits contribute to the current 5.2-year mine plan, all within 50km of Davyhurst plant
Near Term / Near Mine Opportunities
- Potential open pit extensions and strong underground Mineral Resources of 0.5 Moz Au[2] (3.7 Mt @ 4.4 g/t Au) provides opportunity for near term mine-life extensions beyond current designs
| Deposit | Mineral Resource1 | Mining Reserve1 |
|---|---|---|
| Riverina | 3.7 Mt @ 2.7 g/t for 322 koz | 1.4 Mt @ 1.8 g/t for 81 koz |
| Sand King | 2.5 Mt @ 3.5 g/t for 286 koz | 1.3 Mt @ 2.6 g/t for 110 koz |
| Missouri | 2.1 Mt @ 3.4 g/t for 227 koz | 1.5 Mt @ 2.6 g/t for 130 koz |
| Waihi | 2.5 Mt @ 2.6 g/t for 206 koz | 1.5 Mt @ 2.3 g/t for 110 koz |
| Callion | 0.7 Mt @ 4.9 g/t for 107 koz | 0.24 Mt @ 2.6 g/t for 21 koz |
| Golden Eagle | 0.4 Mt @ 3.9 g/t for 49 koz | 0.13 Mt @ 3.8 g/t for 16 koz |
| TOTAL 11.9 Mt @ 3.1 g/t for 1.2 Moz 6.1 Mt @ 2.4 g/t for 460 koz |
1. Refer to ASX Announcement dated 30 June 2020
- 8 2. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
LONG TERM INFRASTRUCTURE IN PLACE
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Significant infrastructure in place to support current and future operations includes:
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administration, technical services and emergency response buildings at Davyhurst
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– site offices with associated outbuildings and infrastructure at Riverina and Golden Eagle
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extensive core shed and sample facilities
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– primary communications facilities to all operating areas
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two camps
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172 person camp at Davyhurst (with approval to expand to 250 rooms)
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64 person camp at Riverina
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extensive haul road network
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2 airstrips (Callion and Riverina)
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licensed process & potable water bore fields with associated pipe networks:
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process water (55 l/s)
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potable water (5 l/s)
-
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1.2Mtpa CIL process plant with associated maintenance workshops, storage facilities and tailings storage facility at Davyhurst
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Ongoing optimisation investigations and trade-off studies in progress
1.2Mtpa Davyhurst Processing Plant Control Room
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MINE DEVELOPMENT PROGRAM
10
SIX KEY DEPOSITS UNDERPIN MINE PRODUCTION1
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1. Riverina (Open Pit & Underground) – 44km from Davyhurst
-
Resource 3.7 Mt @ 2.7 g/t for 322 koz1 - Open Pit (3.0 Mt @ 1.9 g/t for 183 koz) + Underground (0.7 Mt @ 5.9 g/t for 139 koz)
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• Ore Reserve 1.4 Mt @ 1.8 g/t for 81 koz2 • Mineralisation remains open at depth, along strike and down plunge
2. Golden Eagle (Underground) – 2km from Davyhurst
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Resource 0.4 Mt @ 3.9 g/t for 49 koz1
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Ore Reserve 0.1 Mt @ 3.8 g/t for 16 koz2
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Substantial development complete (mine developed to 150m vertical depth)
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• Down plunge drilling confirms mineralisation is open
3. Missouri (Open Pit & Underground) - 37 km from Davyhurst
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Resource 2.1 Mt @ 3.4 g/t for 227 koz1
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Ore Reserve 1.5 Mt @ 2.6 g/t for 130 koz1
4. Sand King (Open Pit & Underground ) - 37 km from Davyhurst
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Resource 2.5 Mt @ 3.5 g/t for 286 koz1
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• Ore Reserve 1.3 Mt @ 2.6 g/t for 110 koz1
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Underground potential remains below pits
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5. Waihi (Open Pit & Underground) - 3 km from Davyhurst
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Resource 2.5 Mt @ 2.6 g/t for 206 koz1
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Open Pit (2.1 Mt @ 2.4 g/t for 159 koz) + Underground (0.4 Mt @ 3.8 g/t for 47 koz)
-
• Ore Reserve 1.5 Mt @ 2.3 g/t for 110 koz1
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Underground potential remains below pits
6. Callion (Open Pit & Underground) - 14 km from Davyhurst
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Resource 0.7 Mt @ 4.9 g/t for 107 koz1
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Ore Reserve 0.2 Mt @ 2.6 g/t for 21 koz[1]
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High grade underground potential
11 1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
SIX KEY DEPOSITS UNDERPIN MINE PRODUCTION
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Mine plan based on Ore Reserve of 6.1Mt @ 2.4g/t Au for 460koz Au[1]
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Conventional approach to mining method and schedule
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Mining of the five open pits and one underground area is scheduled to be carried out in phases to optimise cash flow over the 5+ year life of the project:
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First phase of mining involves Riverina open pit and Golden Eagle underground.
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Preliminary planning to commence mining operations in the Siberia area at Missouri open pit is currently in progress
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Mining at Sand King open pit is scheduled to follow mining at Missouri
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ANNUAL ORE TONNAGE & ORE GRADE MINED BY PIT
1400 3
2.58 2.53
2.44
1200
2.5
2.21
2.02
1000 1.95
2
800
1.5
600
1
400
0.5
200
0 0
2020 2021 2022 2023 2024 2025
Riverina Missouri Sand King Waihi Callion Golden Eagle Grade
Thousands
Ore Tonnage (t)
Ore Grade (g/t Au)
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Subsequent mining will then involve successive cutbacks at Riverina, Waihi and Callion
-
Ongoing resource definition drilling programs, focussing on near mine infill drilling that will seek to upgrade existing resources
12 1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details. Refer to ASX Announcement dated 30 June 2020. The above table contains rounding adjustments
RIVERINA OPEN PIT MINING OPERATIONS
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13
GOLDEN EAGLE UNDERGROUND OPERATIONS
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14
PROCESS PLANT IN OPERATION
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15
– INFRASTRUCTURE LNG FACILITY
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16
– INFRASTRUCTURE RIVERINA CAMP
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17
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RESOURCE DEFINITION AND EXPLORATION
18
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Resource Definition
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- RIVERINA SOUTH AN ADVANCED NEAR MINE PROSPECT
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Riverina South & UG Prospects – Adjoins & Below Riverina Open Pit
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Confirmed extension to Riverina Main Lode mineralisation, remains open along strike to the south and at depth
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Maiden resource estimate of 650kt @ 2.1 g/t for 43koz announced
-
Recent Open Pit Results[1][[1]]
Recent Underground Results[[1]]
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10.0m @ 10.8 g/t from 80m (including 6.0m @ 17.3 g/t)
-
• 8.0m @ 9.9 g/t from 69m (including 6.0m @ 13.0 g/t) • 8.0m @ 7.7 g/t from 16m (including 4.0m @ 14.5 g/t) • 13.0m @ 4.59 g/t from 63m (Including 3.0m @ 10.1 g/t) • 13.0m @ 3.23 g/t from 37m (Including 2.0m @ 15.8 g/t)
-
14.0m @ 6.6 g/t from 148m (including 10.0m @ 9.0 g/t)
-
6.0m @ 10.1 g/t from 96m (hanging wall lode)
-
2.0m @ 10.9 g/t from 126m
-
4.0m @ 5.2 g/t from 88m
-
13.0m @ 3.8 g/t from 5m
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1. Refer to ASX announcements dated 8 March 2021, 10 August 2020 and 9 April 2020. For further drilling details refer to the OBM website at www.orabandamining.com.au
19
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– EXPLORATION POTENTIAL MULTIPLE REGIONAL PROSPECTS
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Regional Exploration
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Large landholding covering 1,350km[2] and many kms of prospective strike Tenement consolidation occurred in 2007, but no coherent exploration effort undertaken as yet High priority targets include well-defined but poorly-tested prospect-scale gold occurrences Exploration drilling recommenced in January. Multiple (100+) drill ready regional targets identified
Recent Exploration Results[1]
Drilling Programs in Progress FY21 Aircore Drilling – 18,000m
Young Australian
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4.0m @ 6.18 g/t from 36.0m • Mulline Trend – Young Australia, Sunraysia
-
• 4.0m @10.78 g/t from 44.0m • Santalum • 4.0m @3.82 g/t from 137.0m • Sky Flame Prospect • South Pole • 2.0m @ 19.22 g/t from 58.0m • Ida Gem • 9.0m @ 5.53 g/t from 64.0m; including 7.0m @ 6.9g/t • 3.0m @ 8.19 g/t from 80.0m RC Drilling – 10,000m
-
• 5.0m @ 2.01 g/t from 98.0m • Mulline North • 1.0m @ 9.15 g/t from 72.0m • Palmerston East • Callion Cross
-
Mt Ida Project • Riverina North
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• 5.0m @ 4.45 g/t from 23m • Dave Lode
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• 6.0m @ 5.0g/t g/t from 69m • 5..0m @ 3.20 g/t from 76.0m
20
1. Refer to ASX announcement dated 20 May 2020 for further information. For further drilling details refer to the OBM website at www.orabandamining.com.au
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Regional Exploration
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– EXPLORATION POTENTIAL MULTIPLE REGIONAL PROSPECTS
TARGETS - Exploration & Resource Development
-
“Target Support” defines current understanding and confidence in the target
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“Prospectivity” defines the potential of the target
-
Size of the bubble represents the potential size of the target (larger bubble = larger potential ounces)
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21
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APPENDICES
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1 RIVERINA
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Riverina - Open Pit & Underground
Riverina
Isometric view looking north-west
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Resource 3.7 Mt @ 2.7 g/t for 322 koz1
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Open Pit 3.0 Mt @ 1.9 g/t for 183 koz
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Underground 0.7 Mt @ 5.9 g/t for 139 koz
-
Ore Reserve 1.4 Mt @ 1.8 g/t for 81 koz2
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Located 48 km from Davyhurst Process Plant
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Considerable scope to grow resource and reserve base
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Underground mining evaluation study in progress
-
Confirmed extension to Riverina Main Lode mineralisation at Riverina South (immediately south of the current pit), remains open along strike to the south and at depth
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Riverina open pit and preliminary underground mine deign
Showing design pit, mineralisation wireframes, historical underground mine voids
1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
2. Refer to ASX announcement dated 2 December 2019 for further information. For further drilling details refer to the OBM website at www.orabandamining.com.au
23
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2 GOLDEN EAGLE
Golden Eagle - Underground
• Resource 0.4 Mt @ 3.9 g/t for 49 koz1 Golden Eagle Long Section
• Ore Reserve 0.1 Mt @ 3.8 g/t for 16 koz2
•
Located 2 km from Davyhurst Process Plant
•
Substantial development complete (mine
developed to 150m vertical depth)
•
Down plunge drilling confirms mineralisation is
open
•
Significant resource definition drilling program
planned from underground locations to
upgrade Inferred Resource
1.
Mine Development
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2. Refer to ASX announcement dated 8 April 2020. For further drilling details refer to the OBM website at www.orabandamining.com.au
1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
24
3 MISSOURI
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Missouri
Missouri - Open Pit & Underground
Isometric view looking north-west
• Resource 2.1 Mt @ 3.4 g/t for 227 koz1
-
Ore Reserve 1.5 Mt @ 2.6 g/t for 130 koz2
-
Located 37 km from Davyhurst Process Plant
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Missouri Mine Design
Showing pit design & mineralisation wireframes Isometric view looking north-west
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2. Refer to ASX announcement dated 15 December 2016. For further drilling details refer to the OBM website at www.orabandamining.com.au
1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
25
4 SAND KING
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Sand King - Open Pit & Underground
• Resource 2.5 Mt @ 3.5 g/t for 286 koz1
• Ore Reserve 1.3 Mt @ 2.6 g/t for 110 koz2
Sand King Mine Design
Showing pit design & mineralisation wireframes
Isometric view looking north-west
-
Located 37 km from Davyhurst Process Plant
-
Underground potential remains below pits
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----- Start of picture text -----
AU Grade (g/t)
2.0 to 3.0
3.0 to 4.0
> = 4.0
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Sand King Long Section Showing pit design resource blocks Long Section view looking north-east
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1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments. 2. Refer to ASX announcement dated 3 January 2017. For further drilling details refer to the OBM website at www.orabandamining.com.au
26
5 WAIHI
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Waihi - Open Pit & Underground
-
Resource 2.5 Mt @ 2.6 g/t for 206 koz1
-
Open Pit 2.1 Mt @ 2.4 g/t for 159 koz
-
Underground 0.4 Mt @ 3.8 g/t for 47 koz
-
Ore Reserve 1.5 Mt @ 2.3 g/t for 110 koz2
-
Located 3 km from Davyhurst Process Plant
-
Underground potential remains below pits
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----- Start of picture text -----
AU Grade (g/t)
0.7 to 1.0
1.0 to 2.0
2.0 to 3.0
3.0 to 4.0
> = 4.0
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2. Refer to ASX announcement dated 30 June 2020. For further drilling details refer to the OBM website at www.orabandamining.com.au
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1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments.
27
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6 CALLION
Callion - Open Pit & Underground
• Resource 0.7 Mt @ 4.9 g/t for 107 koz1
• Ore Reserve 0.2 Mt @ 2.6 g/t for 21 koz [2]
•
Located 14 km from Davyhurst Process Plant
•
High grade underground potential
1.
Mine Development
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1. Refer to Appendix A & B - Mineral Reserve and Mining Resource Statement for further details The above statement may contain rounding adjustments. 2. Refer to ASX announcement dated 30 June 2020. For further drilling details refer to the OBM website at www.orabandamining.com.au
28
– APPENDIX A ORE RESERVE TABLE
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| PROJECT | PROVED | PROVED | PROBABLE | PROBABLE | TOTAL MATERIAL | TOTAL MATERIAL | TOTAL MATERIAL |
|---|---|---|---|---|---|---|---|
| ('000t) | (g/t Au) | ('000t) | (g/t Au) | ('000t) | (g/t Au) | ('000oz.) | |
| Sand King | - | - | 1,300 | 2.6 | 1,300 | 2.6 | 110 |
| Missouri | - | - | 1,500 | 2.6 | 1,500 | 2.6 | 130 |
| Riverina Open Pit | - | - | 1,400 | 1.8 | 1,400 | 1.8 | 81 |
| Golden Eagle | - | - | 130 | 3.8 | 130 | 3.8 | 16 |
| Waihi | - | - | 1,500 | 2.3 | 1,500 | 2.3 | 110 |
| Callion | - | - | 240 | 2.6 | 240 | 2.6 | 21 |
| TOTAL | - | - | 6,100 | 2.4 | 6,100 | 2.4 | 460 |
Notes
1. The table contains rounding adjustments to two significant figures and does not total exactly.
2. This Ore Reserve was estimated from practical mining envelopes and the application of modifying factors for mining dilution and ore loss.
3. For the open pit Ore Reserve dilution skins were applied to the undiluted LUC Mineral Resource estimate at zero grade. The in-pit global dilution is estimated to be 29% at Sand King, 43% at Missouri, 22% at Riverina, 13% at Waihi and 23% at Callion all of which were applied at zero grade. The lower dilution at Riverina, Waihi and Callion reflecting the softer lode boundary and allows for inherent dilution within the lode wireframe. All Inferred Mineral Resources were considered as waste at zero grade.
4. The Open Pit Ore Reserve was estimated using incremental cut-off grades specific to location and weathering classification. They range from 0.54 g/t to 0.69 g/t Au and are based on a price of A$2100 per ounce and include ore transport, processing, site overheads and selling costs and allow for process recovery specific to the location and domain and which range from 85% (Sand King fresh ore) to 95%.
5. Approximately 100,000 t at 1.8 g/t at Riverina was downgraded from Proved to Probable due to uncertainty at the time surrounding metallurgical recovery. Subsequent test work estimated the Riverina recoveries to be 90.1%, 97.6% and 94.3% for oxide, transition and fresh, respectively.
6. The underground Ore Reserve was estimated from practical mining envelopes derived from expanded wireframes to allow for unplanned dilution. A miscellaneous unplanned dilution factor of 5% at zero grade was also included. The global dilution factor was estimated to be 32% with an average grade of 0.77 g/t Au.
7. The underground Ore Reserve was estimated using stoping cut-off of 2.7 g/t Au which allows for ore drive development, stoping and downstream costs such as ore haulage, processing, site overheads and selling costs. An incremental cut-off grade of 0.7 g/t Au was applied to ore drive development and considers downstream costs only. Cut-off grades were derived from a base price of A$2100 per ounce and allow for an assumed process recovery of 92%. Subsequent test work estimated the Golden Eagle fresh recovery to be 90.6%
29
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– APPENDIX B MINERAL RESOURCE TABLE
| PROJECT | Cut-Off | ('000t) (g/t Au) MEASURED |
('000t) (g/t Au) MEASURED |
INDICATED | INDICATED | INFE | RRED | ('000t) (g/t Au) ('000oz.) TOTAL MATERIAL |
('000t) (g/t Au) ('000oz.) TOTAL MATERIAL |
('000t) (g/t Au) ('000oz.) TOTAL MATERIAL |
|---|---|---|---|---|---|---|---|---|---|---|
| (g/t Au) | ('000t) | (g/t Au) | ('000t) | (g/t Au) | ('000t) | (g/t Au) | ||||
| GOLDEN EAGLE | 2.0 | - | - | 247 | 4.1 | 146 | 3.4 | 393 | 3.9 | 49 |
| LIGHTS OF ISRAEL | 3.0 | - | - | 74 | 4.3 | 180 | 4.2 | 254 | 4.2 | 34 |
| MAKAI SHOOT | 1.0 | - | - | 1,985 | 2.0 | 153 | 1.7 | 2,138 | 2.0 | 137 |
| Open Pit | 0.5 | - | - | 1,948 | 2.4 | 131 | 2.9 | 2,079 | 2.4 | 159 |
| WAIHI Underground | 2.0 | - | - | 188 | 3.7 | 195 | 4.0 | 383 | 3.8 | 47 |
| TOTAL | - | - | 2,136 | 2.5 | 326 | 3.5 | 2,462 | 2.6 | 206 | |
| Central Davyhurst Subtotal | - | - | 4,442 | 2.4 | 805 | 3.3 | 5,247 | 2.5 427 |
||
| LADY GLADYS | 1.0 | - | - | 1,858 | 1.9 | 190 | 2.4 | 2,048 | 1.9 | 125 |
| Open Pit | 0.5 | 116 | 1.8 | 2,694 | 1.8 | 183 | 3.0 | 2,993 | 1.9 | 183 |
| RIVERINA AREA Underground | 2.0 | - | - | 226 | 5.7 | 502 | 6.1 | 728 | 5.9 | 139 |
| TOTAL | 116 | 1.8 | 2,843 | 1.8 | 685 | 5.3 | 3,721 | 2.7 | 322 | |
| Open Pit | 0.5 | 523 | 1.8 | 523 | 1.8 | 30 | ||||
| RIVERINA SOUTH Underground | 2.0 |
122 | 3.3 | 122 | 3.3 | 13 | ||||
| TOTAL | 645 | 2.1 | 645 | 2.1 | 43 | |||||
| FOREHAND | 1.0 | - | - | 386 | 1.7 | 436 | 1.9 | 822 | 1.8 | 48 |
| SILVER TONGUE | 1.0 | - | - | 155 | 2.7 | 19 | 1.3 | 174 | 2.5 | 14 |
| SUNRAYSIA | 1.0 | - | - | 175 | 2.1 | 318 | 2.0 | 493 | 2.0 | 32 |
| Riverina-Mulline Subtotal | 116 | 1.8 | 5,494 | 1.9 | 2,293 | 3.0 | 7,903 | 2.3 583 |
||
| Open Pit | - | - | 1,252 | 3.4 | 128 | 3.3 | 1,380 | 3.4 | 150 | |
| SAND KING Underground | 0.5 | - | - | 438 | 3.7 | 698 | 3.8 | 1,136 | 3.7 | 136 |
| TOTAL | 2.0 | - | - | 1,690 | 3.5 | 826 | 3.7 | 2,516 | 3.5 | 286 |
| Open Pit | - | - | 1,460 | 3.4 | 17 | 3.5 | 1,477 | 3.4 | 160 | |
| MISSOURI Underground | 0.5 | - | - | 364 | 3.4 | 258 | 3.4 | 622 | 3.4 | 68 |
| TOTAL | 2.0 | - | - | 1,824 | 3.4 | 275 | 3.4 | 2,099 | 3.4 | 227 |
| PALMERSTON / CAMPERDOWN | 1.0 | - | - | 118 | 2.3 | 174 | 2.4 | 292 | 2.4 | 23 |
| BEWICK MOREING | 1.0 | - | - | - | - | 50 | 2.3 | 50 | 2.3 | 4 |
| BLACK RABBIT | 1.0 | - | - | - | - | 434 | 3.5 | 434 | 3.5 | 49 |
| THIEL WELL | - | - | - | - | 18 | 6.0 | 18 | 6.0 | 3 | |
| Siberia Subtotal | - | - | 3,632 | 3.4 | 1,777 | 3.5 | 5,409 | 3.4 592 |
||
| Open Pit | 0.5 | - | - | 241 | 3.7 | 28 | 1.6 | 269 | 3.5 | 30 |
| Callion Underground | 2.0 | - | - | 255 | 6.0 | 156 | 5.5 | 411 | 5.8 | 77 |
| TOTAL | - - |
496 4.9 |
184 | 4.9 | 680 4.9 107 |
|||||
| Callion Subtotal | - | - | 496 | 4.9 | 184 | 4.9 | 680 | 4.9 | 107 | |
| FEDERAL FLAG | 1.0 | 32 | 2 | 112 | 1.8 | 238 | 2.5 | 382 | 2.3 | 28 |
| SALMON GUMS | 1.0 | - | - | 199 | 2.8 | 108 | 2.9 | 307 | 2.8 | 28 |
| WALHALLA | 1.0 | - | - | 448 | 1.8 | 216 | 1.4 | 664 | 1.7 | 36 |
| WALHALLA NORTH | 1.0 | - | - | 94 | 2.4 | 13 | 3.0 | 107 | 2.5 | 9 |
| MT BANJO | 1.0 | - | - | 109 | 2.3 | 126 | 1.4 | 235 | 1.8 | 14 |
| MACEDON | 1.0 | - | - | - | - | 186 | 1.8 | 186 | 1.8 | 11 |
| Walhalla Subtotal | 32 | 2.0 | 962 | 2.1 | 887 | 2.0 | 1,881 | 2.1 125 |
||
| IGUANA | 1.0 | - | - | 690 | 2.1 | 2,032 | 2.0 | 2,722 | 2.0 | 175 |
| LIZARD | 1.0 | 106 | 4 | 75 | 3.7 | 13 | 2.8 | 194 | 3.8 | 24 |
| Lady Ida Subtotal | 106 | 4.0 | 765 , |
2.3 | 2,045 , |
2.0 | 2,916 , |
2.1 199 |
||
| Davyhurst Total | 300 | 2.7 | 15,800 | 2.5 | 8,000 | 2.8 | 24,000 | 2.6 | 2,030 |
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MEASURED INDICATED INFERRED TOTAL MATERIAL
PROJECT
Cut-Off ('000t) (g/t Au) ('000t) (g/t Au) ('000t) (g/t Au) ('000t) (g/t Au) ('000oz.)
BALDOCK - - - 136 18.6 0 0.0 136 18.6 81
METEOR - - - - - 143 9.3 143 9.3 43
WHINNEN - - - - - 39 13.3 39 13.3 17
Mount Ida Total - - 140 18.6 180 10.2 320 13.8 140
Combined Total 300 2.7 15,900 2.6 8,200 3.0 24,300 2.8 2,170
----- End of picture text -----
Notes:
1. The Missouri, Sand King, Riverina, Riverina South, Waihi, Callion & Golden Eagle Mineral Resources have been updated in accordance with all relevant aspects of the JORC code 2012, and initially released to the market on 15 December 2016 & 26 May 2020 (Missouri), 3 January 2017 & 26 May 2020 (Sand King), 2 December 2019 & 26 May 2020 (Riverina), 4 February 2020 (Waihi), 15 May 2020 & 29 June 2020 (Callion) & 8 April 2020 (Golden Eagle) and 9 October 2020 (Riverina South). 2. All Mineral Resources listed above, with the exception of the Missouri, Sand King, Riverina, Riverina South, Waihi, Callion & Golden Eagle Mineral Resources, were prepared previously and first disclosed under the JORC Code 2004 (refer Swan Gold Mining Limited Prospectus released to the market on 13 February 2013). These Mineral Resources have not been updated in accordance with JORC Code 2012 on the basis that the information has not materially changed since it was first reported. 3. The Riverina, Riverina South, Waihi, Sand King, Missouri and Callion Open Pit Mineral Resource Estimates are reported within a A$2,400/oz pit shell above 0.5g/t. The Riverina, Waihi, Sand King, Missouri, Callion and Golden Eagle Underground Mineral Resource Estimates are reported from material outside a A$2,400 pit shell and above 2.0 g/t. 4. The values in the above table have been rounded.
30
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31