Meridian Mining Plc · TSX:MNO
Meridian Mining — Meridian Mining UK Societas — Technical Presentation (November 2022)
54 slides from Meridian Mining's technical presentation, November 2022
Slide 1: Effect of angled drilling and unsampled core on defining high grade gold overprint at Cabaçal
Technical Presentation: Effect of angled drilling and unsampled core on defining high grade gold overprint at Cabaçal MNO Technical Presentation, November 2022 meridianmining.co
Slide 2: otherwise acquire, any securities of Meridian Mining UK Societas (“Meridian”), nor shall it or
This presentation does not constitute or form a part of, and should not be construed as an offer, solicitation or invitation to subscribe for, underwrite or otherwise acquire, any securities of Meridian Mining UK Societas (“Meridian”), nor shall it or any part of it form the basis of or be relied on
Slide 3: Technical Presentation, November 2022 meridianmining.co
Technical Presentation, November 2022 meridianmining.co
Slide 4: Technical Presentation, November 2022 Meridian Mining UK S | 4
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Slide 5: High grade gold drill intercepts
CBDS27616 31.05 - 31.50 @ 48.7 g/t Au CBDS27613 - 29.0-30.0m @ 1.9g/t Au CBDS27628 - 37.53 - 37.95 m @ 6.1 g/t Au CBDS27632 - 39.88 - 40.45 m @ 37.3 g/t Au Technical Presentation, November 2022 Meridian Mining UK S | 5
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Slide 8: Cross-section and map Schematic Structural Section
• • • • Cross-section and map Schematic Structural Section Technical Presentation, November 2022 Meridian Mining UK S | 8
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Slide 10: Technical Presentation, November 2022 meridianmining.co
Technical Presentation, November 2022 meridianmining.co
Slide 11: Technical Presentation, November 2022 Meridian Mining UK S | 11
Technical Presentation, November 2022 Meridian Mining UK S | 11
Slide 12: TAC Footwall
TAC Footwall Technical Presentation, November 2022 Meridian Mining UK S | 12
Slide 13: TAC Footwall historical sample limit contour
TAC Footwall Contour of the top of the historical sample limit Technical Presentation, November 2022 Meridian Mining UK S | 13
Slide 14: CD-045
CD-045 Technical Presentation, November 2022 Meridian Mining UK S | 14
Slide 15: Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM meridianmining.co
Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM meridianmining.co
Slide 16: Cabaçal Mineral Resource
Cabaçal Mineral Resource - cog 0.5g/t AuEq Category Mt Au g/t Cu % Ag g/t AuEq g/t Au Mozs Cu Kt Ag Mozs AuEq Mozs Indicated 34.5 0.90 0.41 1.8 1.41 1.0 132.9 2.0 1.6 Inferred 5.6 1.15 0.27 1.2 1.45 0.2 15.2 0.2 0.3 Note 1 See News Release dated 26th September Technical Presentation, October 2022 TS
Slide 17: Block model at 0.5g/t AuEq cut-off
7 8 3 4 6 Block model @ 0.5g/t AuEq Cut-off 2 5 Ind - 34.5Mt - 1.6 Moz AuEq @ 1.4g/t AuEq 1 Inf - 5.6Mt - 0.3Moz AuEq @ 1.5g/t AuEq 8’ 4’ 7’ 3’ 6’ 2’ 5’ 1’ Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Mining UK S | 17
Slide 18: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Mining UK S | 18
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Slide 20: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 21: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 22: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 24: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 25: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Mining UK S | 25
Slide 26: Block model at 0.5g/t AuEq cut-off
A’ Block model @ 0.5g/t AuEq Cut-off B’ Ind - 34.5Mt - 1.6 Moz AuEq @ 1.4g/t AuEq C’ Inf - 5.6Mt - 0.3Moz AuEq @ 1.5g/t AuEq D’ A E’ F’ B G’ H’ C I’ J’ D K’ L’ E M’ F N’ O’P’ G Q’ R’ H S’ I J K L M N O P Q R S Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Min
Slide 27: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 31: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 45: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
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Slide 46: Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM meridianmining.co
Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM meridianmining.co
Slide 47: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
1 See News Release: 26th September 2022 Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Mining UK S | 47
Slide 48: TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM
1 See News Release: 26th September 2022 Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Mining UK S | 48
Slide 49: Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM meridianmining.co
Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM meridianmining.co
Slide 50: Metallurgical Highlights
METALLURGICAL METALURGICAL HIGHLIGHTS HIGHLIGHTS Top Tier Metal Recoveries High Quality Copper Concentrate - up to 29% Course Grind ~200 microns Simple Floatation - 65% Chalcopyrite Low Bond Work Index - 11.2 Copper Recovery Gold Recovery Low Abrasion Index - 0.28 Non-Acid Generating Tailings +94% +
Slide 51: Copper and gold recoveries
+94% Copper Recoveries Copper recovery exceeds 90% from 0.1% to >3% Cu head grade While copper recovery declines with head grade the slope is very moderate Consideration will therefore be given to the viability of processing lower grade mineralization Historic plant data fits the trend +87% Gold Rec
Slide 52: 25-29% Copper Concentrate
25-29% Copper Concentrate Copper concentrate grade correlates well to Sulphur : Copper feed grade ratio Concentrate grades varied up to 30% Cu with average mineralization expected to yield 25 – 29% Cu concentrate grade Copper concentrate grades can be managed to requirements with modest impact to re
Slide 53: Simple Flow Sheet Clean Cu/Au/Ag Concentrates
Simple Flow Sheet Clean Cu/Au/Ag Concentrates Minimal Recirculation Au/Ag Dore 29% Cu 94% Technical Presentation, October 2022 TSX: MNO / OTCQB: MRRDF / Frankfurt: 2MM Meridian Mining UK S | 53
Slide 54: Technical Presentation, November 2022 meridianmining.co
Phone: +1 778 715 6410 Corporate Address: Chief Executive Officer Executive Chairman Email: info@meridianmining.net.br 6th Floor, 65 Gresham Street, London EC2V 7NQ United Kingdom Technical Presentation, November 2022 meridianmining.co
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