Gem Diamonds Limited · LSE:GEMD
Gem Diamonds — Corporate Update (March 2025)
17 slides from Gem Diamonds's corporate update, Mar 13, 2025
Slide 1: Letšeng Revised Mine Plan & Revolving Credit Facilities
GEM DIAMONDS LETŠENG REVISED MINE PLAN & REVOLVING CREDIT FACILITIES 3 December 3 December 2024 2024
Slide 2: Disclaimer
DISCLAIMER This presentation is confidential and is being made only to, and is only directed at, persons to whom this presentation may lawfully be communicated (“relevant persons”). Any person who is not a relevant person should not act or rely on this presentation or any of its contents. Informatio
Slide 3: Contents
CONTENTS • Letšeng's revised long-term mine plan • Letšeng 2025 guidance • Revolving credit facilities • Diamond market update 3
Slide 4: 4
4
Slide 5: Existing Long-Term Mine Plan
EXISTING LONG-TERM MINE PLAN Peak waste 21.2 Mtpa Peak waste 21Mtpa Existing long-term mine plan based on 2024 Resource & Reserve Statement The final cutback in the Satellite pit (SC6W) has been under review since mid-2023 to: • significantly reduce overall waste volumes • assess technical and econo
Slide 6: Revised Final Cutback Design (SC6W)
REVISED FINAL CUTBACK DESIGN (SC6W) • Re-designed steeper slope in competent basalt hard-rock. • External geotechnical experts completed: – a steeper overall pit and inter-ramp slope stability analysis; and – a high-wall lateral support and 5-tier rockfall & slope instability mitigation plan designe
Slide 7: Revised Final Cutback Design (SC6W)
REVISED FINAL CUTBACK DESIGN (SC6W) – The steeper SC6W will be mined from within the current SC5W cutback with supported high benches – SC6W kimberlite (ore) remains on the current slope angle design – Potential to steepen the kimberlite slopes to access additional ore with little or no further wast
Slide 8: Revised Long-Term Mine Plan
REVISED LONG-TERM MINE PLAN • Significantly reduced peak annual waste mining from 21.2 million tonnes to 10.5 million tonnes – SC6W from 15.0 million tonnes to 3.8 million tonnes • Total ore tonnes treated maintained at 5.1 million tonnes per annum – SC6W ore tonnes ramping up to 2.5 million tonnes
Slide 9: Long-Term Mine Plan - Comparison
LONG-TERM MINE PLAN- COMPARISON 9
Slide 10: Opportunities & 2025 Outlook
OPPORTUNITIES & 2025 OUTLOOK General • In-sourcing of processing activities effective 1 December 2024 Satellite Pit • Commence waste stripping of the newly designed SC6W cutback in H2 2025 • Opportunity to redesign kimberlite (ore) slopes to access additional ore at little to no further waste stripp
Slide 11: Letšeng 2025 Guidance
LETŠENG 2025 GUIDANCE 2025 Guidance Waste stripped (Mt) 5-6 Ore treated (Mt) 4.9 - 5.0 Satellite pipe ore contribution¹ (Mt) 0.7 - 0.8 Carats recovered (Kct) 84 - 88 Carats sold (Kct) 82 - 86 Direct cash costs (before waste) per tonne treated² (Maloti) 235 - 242 Operating costs per tonne treated³ (M
Slide 12: Revolving Credit Facilities
REVOLVING CREDIT FACILITIES • Current revolving credit facilities: – Letšeng M750.0 million (US$41.7 million) - no drawdown at end November 2024 – Corporate office US$30.0 million - US$6.0 million drawn down at end November 2024 • Due to expire on 21 December 2024 • Facility extension concluded: – 2
Slide 13: Diamond Market Update
DIAMOND MARKET UPDATE SIGNIFICANT PRESSURE ON THE DIAMOND MARKET CONTINUED IN 2024 GLOBAL ECONOMIC BACKDROP DIAMOND MARKET • Global economic growth of between • Significant pressure on rough and 2.6% and 3.2% forecast for 2024 polished diamond prices • Russian / Ukraine war continues • Major players
Slide 14: Contact Us
CONTACT US Gem Diamonds Limited Kiki Constantopoulos, Company Secretary IR@gemdiamonds.com Celicourt Communications Mark Antelme / Felicity Winkles T: +44 (0)207 777 6424 14
Slide 15: Letšeng LoM Mining Schedule
LETŠENG LOM MINING SCHEDULE * Ore tonnes in this presentation are represented as wet tonnes (moisture content at 9%). Ore tonnes in the table above are recorded as dry to align with the 2024 Resource and Reserve Statement. Dry to wet tonnes conversion: dry tonnes / 0.91 15
Slide 16: Letšeng Mine Production
LETSENG MINE PRODUCTION LOM Summary Schedule —_Units Total 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039) Plant Schedule ‘Treated Tonnes - Dry* Mt 66.2 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 1.27 \Main Pipe Ore Mt 55.9 3.8 4.6 4.6 4.6 4.0 3.0 2.4 2.4 2.4
Slide 17: Gem Diamonds Limited
GEM aVENES 2nd Floor, Coastal Building, Wickham’s Cay II, PO Box 2221, Road Town, Tortola, British Virgin Islands, Registration number: 669758 GEM DIAMONDS LIMITED www.gemdiamonds.com