Slide 1: Turquoise Ridge
Turquoise Ridge September 22, 2022
Slide 2: Cautionary Statement on Forward-Looking Information
Cautionary Statement on Forward-Looking Information Certain information contained or incorporated by reference in this presentation, including any information as to our strategy, projects, plans or future financial or operating performance, constitutes “forward-looking statements”. All statements, o
Slide 3: Turquoise Ridge Complex
Turquoise Ridge Complex A historic mine and mill combined in the joint venture into a Tier Onei operation i A Tier One Gold Asset is an asset with a reserve potential to deliver a minimum 10-year life, annual production of at least 500,000 ounces of gold and total cash costs per ounce over the mine
Slide 4: Investing in TR Underground Advancements
Investing in TR Underground Advancements #3 Shaft1 24ft diameter, 3,245ft deep 2280 skip station 1/3 reduction in haul distances Facilitates 5-year ramp up Inactive Getchell Open Pit #2 Shaft #1 Shaft (Intake) (Exhaust) #3 Shaft (Intake) South Zone North Zone COR Ventilation Reversal Third 1,500hp m
Slide 5: Upgraded Underground Fleet
Upgraded Underground Fleet TH545i Underground Haul Truck +50% capacity over AD30 LH514 Loader with 11yd Bucket +83% bucket factor over R1600 DS311 with Resin Injection Installs corrosion resistant resin grouted rebar ground support Complements swellex fleet DS422i Double Boom Jumbo +15% productivity
Slide 6: Moving Forward on Increasing Production
Moving Forward on Increasing Production Benefits of Bulk Mining PDH Increased production efficiency Lower mining cost per tonne SZ Reduced development per tonne HGB Opportunities for paste backfill SRM HGB 3650 open stope CIE MBD Areas identified as long hole FED stoping zones where ground condition
Slide 7: Focus on Processing Debottlenecking
Focus on Processing Debottlenecking Increasing Production Increasing underground tonnage at a slightly lower grade requires higher processing tonnage to maintain ounce flow Higher tonnage has pushed the autoclave facility to discover throughput bottlenecks Autoclave tonnage run rate is up 30% but ha
Slide 8: Project 1: Tailings Discharge Line Upgrades
Project 1: Tailings Discharge Line Upgrades Project Background Upgrade the carbon-in-leach (CIL) tailings discharge line and pump motors to increase discharge capacity rates Replace the old tailings line with a new 24” high density polyethylene (HDPE) line with a higher- pressure rating Upgraded ass
Slide 9: Project 2: Thickener Retrofit Upgrade
Project 2: Thickener Retrofit Upgrade Project Background Thickener underflow density or the % solids in the autoclave feed has a direct impact on autoclave throughput and revenue. Retrofit of the thickener feedwell and motor drive will provide: Previous Thickener Increase % solids in the underflow,
Slide 10: Project 3: CIL Screening Upgrades
Project 3: CIL Screening Upgrades Project Background Mitigate the CIL circuit bottleneck by increasing the capacity Tank #6 of the screens with greater operational flexibility. Replace the current Kambalda and Derrick screens with newer technology Kemix screens to handle pulp with high viscosities a
Slide 11: TRUG Extending Mineralization to the South and close to Third Shaft
TRUG Extending Mineralization to the South and close to Third Shaft V N Inactive Getchell Open Pit #2 Shaft #1 Shaft (Intake) (Exhaust) #3 Shaft BBT CORRIDOR (Intake) TUM-21169i 13.3m @ 13.37 g/t South Zone North Zone TSM-22004i 17.53m @ 10.39 g/t P&P Reserves 2250 Station Plan View M&I Resources In
Slide 12: TRUG New Drilling Close to Third Shaft
TRUG New Drilling Close to Third Shaft 2250 Station 3D View Looking NW 2 Shaft 1 Shaft Near mine growth tested adjacent to the Third Shaft 3 Shaft 2250 Station 2250 Station LEGEND 2021 Growth Drilling Life Of Mine (LOM) 3 Shaft Existing Infrastructure 3 Shaft 2 Shaft 1 Shaft 0 200 400 600 meters
Slide 13: TRUG New Drilling Close to Third Shaft
TRUG New Drilling Close to Third Shaft 2250 Station (252.1 – 253.6m) @ 9.9 g/t (253.6 - 255.1m) @ 18.9 g/t 3 Shaft (255.1 – 256.6m) @ 36.3 g/t (256.6 – 258.2m) @ 23.6 g/t (258.2 – 259.1m) @ 32.0 g/t 0 200 400 600 meters i Refer to Appendix A for additional details including assay results for signifi
Slide 14: TRUG Extending Mineralization to the South
TRUG Extending Mineralization to the South BBT CORRIDOR Located approx. 300m south of the current TRUG mine workings Accessible to the UG, with development planned to support exploration drilling TSM-22004i 17.53 m @ 10.39 g/t TSM-22004 (Au results from 478-485m) Geologically similar to TRUG: 5.3 g/
Slide 15: Technical Information
Technical Information The scientific and technical information contained in this presentation has been reviewed and approved by Craig Fiddes, SME-RM, Manager – Resource Modeling, Nevada Gold Mines; John Steele, CIM, Metallurgy, Engineering and Capital Projects Executive; Rodney Quick, MSc, Pr.Sci.Na
Slide 16: Appendix A – Turquoise Ridge Significant Intercepts
Appendix A – Turquoise Ridge Significant Interceptsi i. All intercepts calculated using a 3.4 g/t Au cutoff and are Select Drill Results from 2021 and 2022 uncapped; minimum intercept width is 1m; internal dilution is less than 20% total width Core Drill Holeii Azimuth Dip Interval (m) Width (m)iii
Slide 17: Endnotes
Endnotes 1. Refer to the Technical Report on the Turquoise Ridge Complex, dated March 25, 2020, and filed on SEDAR at www.sedar.com and EDGAR at www.sec.gov on March 25, 2020.