Northern Dynasty Minerals Ltd. · TSX:NDM

Northern Dynasty Minerals — Investor Presentation (January 2024)

54 slides from Northern Dynasty Minerals's investor presentation, January 2024

  1. Slide 1: The Pebble Project

    THE PEBBLE PROJECT Helping to Secure America’s Green Future JANUARY 2024 TSX: NDM NYSE American: NAK

  2. Slide 2: Cautionary & Forward Looking Information

    NORTHERN DYNASTY MINERALS LTD. Cautionary & Forward Looking Information PLEASE REVIEW CAREFULLY This presentation includes certain statements that may be deemed "forward-looking statements" under the United States Private Securities Litigation Reform Act of 1995 and under applicable provisions of Ca

  3. Slide 3: Summary: Strong risk/return potential

    NORTHERN DYNASTY MINERALS LTD. Summary: Strong risk/return potential Copper: Pebble: Pebble: AN Important Metal For A U.S.-Based A Path America’s Green Future World Class Resource Forward Transition to Green Energy expected to Largest undeveloped copper/gold deposit Final EIS: no measurable impact o

  4. Slide 4: Copper – An Important Metal for America's Green Future

    NORTHERN DYNASTY MINERALS LTD. PEBBLE COPPER – AN IMPORTANT METAL FOR AMERICA’S GREEN FUTURE TSX: NDM NYSE American: NAK

  5. Slide 5: Significant Deficit Forecast For Copper

    NORTHERN DYNASTY MINERALS LTD. Significant Deficit Forecast For Copper World Refined Copper Usage (1900-2018) 4 Copper Bull-Market now under way1 25,000 Prices expected to be buoyed by supply disruptions and 20,000 plans for “green” economic stimulus Thousand Metric Tonnes 15,000 Global focus on car

  6. Slide 6: Difficulties Facing Future Copper Supply

    NORTHERN DYNASTY MINERALS LTD. DIFFICULTIES FACING FUTURE COPPer SUPPLY DECLINING HEAD GRADES GLOBALLY POLITICAL/SOCIAL INSTABILITY AVERAGE COPPER ORE HEAD GRADES 1 • Panama • Ecuador 1.0 2015 0.9 0.65% 0.8 2025 • Argentina • Peru 0.7 0.53% 0.6 • Chile 0.5 0.4 2000 2005 2010 2015 2020 2025 LACK OF N

  7. Slide 7: Urgent Need for Significant Copper Projects

    NORTHERN DYNASTY MINERALS LTD. URGENT NEED FOR SIGNIFICANT Copper PROJECTS Eric Heimlich, Head of Base Metals Supply, CRU1 said in March 2022: • Miners need to invest > $100 billion over the next 8 years to meet copper demand • - ...have to build 8 projects the size of Escondida (the world's largest

  8. Slide 8: Where Will The U.S. Get Its Copper?

    NORTHERN DYNASTY MINERALS LTD. Where Will The U.S. Get Its Copper? World’s top undeveloped copper projects predominantly located outside of the U.S • 60% of contained copper in top copper projects is foreign based; 40% “held-up” in U.S. permitting Pebble ranks as the largest undeveloped copper proje

  9. Slide 9: A U.S.-Based World Class Resource

    NORTHERN DYNASTY MINERALS LTD. PEBBLE A U.S.-BASED WORLD CLASS RESOURCE TSX: NDM NYSE American: NAK

  10. Slide 10: Pebble: A World Class Mineral Resource

    NORTHERN DYNASTY MINERALS LTD. Pebble A World Class Mineral Resource on good mining ground Resources  6.5 B tonnes of Measured & Indicated  4.5 B tonnes of Inferred Recoverable Metal Measured & Indicated Inferred Copper 53 B lb 23 B lb Gold 54 M oz 28 M oz Molybdenum 2.8 B lb 1.8 B lb Silver 249 M

  11. Slide 11: Untapped Exploration Potential

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Untapped Exploration Potential World’s Most Extensive Mineral System1 A zone of sulphide mineralization is indicated by an induced Induced Polarization polarization chargeability anomaly at least 25 km by 7 km in size has been the principal Sulphides and hydroth

  12. Slide 12: Nature of the deposit provides optionality

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Nature of the deposit provides optionality1 2023 Preliminary Economic Assessment ("PEA") updates cost estimates and financial results for the Proposed Project, defined in the original 2017 permit application and amended in 2019 The Proposed Project (i.e. Permitt

  13. Slide 13: 2023 PEA: Proposed Project

    NORTHERN DYNASTY MINERALS LTD. PEBBLE 2023 PEA: PROPOSED PROJECT Proposed Project • 20-year, 180,000 tons per day open pit operation with conventional processing producing two concentrates • Capable of processing 1.3 billion tons of mineralized material over 20 years of mining at a low strip ratio o

  14. Slide 14: 2023 PEA Production Summary

    NORTHERN DYNASTY MINERALS LTD. PEBBLE 2023 PEA Production Summary1,2 Units Proposed Project Potential Expansions3 Mineralized Material billion tons 1.3 8.6 Copper Equivalent4 % 0.58 0.72 Copper % 0.29 0.39 Year 10 Gold oz/ton 0.009 0.01 Molybdenum ppm 154 208 Silver oz/ton 0.042 0.046 Rhenium ppm 0.

  15. Slide 15: 2023 PEA Proposed Project

    NORTHERN DYNASTY MINERALS LTD. PEBBLE 2023 PEA proposed project1,2 Proposed Project – Description Units Base Case, including Royalties Mining Taxes & Government Royalties US$ M 1,487 Corporate Income Tax US$ M 1,931 Post – Tax Undiscounted Cash Flow US$ M 7,681 Post – Tax NPV at 7%3 US$ M 2,233 Post

  16. Slide 16: Potential Expansion Scenarios

    NORTHERN DYNASTY MINERALS LTD. PEBBLE potential expansion scenarios1,2,3,4 Three potential expansion scenarios were evaluated to test the sensitivity of the project to expansion of the operation and extraction of a greater portion of the resource. The potential expansion scenarios were modeled on th

  17. Slide 17: Secondary Gold Recovery Plant

    NORTHERN DYNASTY MINERALS LTD. PEBBLE secondary gold recovery Plant1,2,3,4 Possible addition of a secondary gold recovery plant in Production Year 5, using the most efficient and permittable lixiviants available at the time any related permitting applications are made We continue to evaluate multipl

  18. Slide 18: Secondary Gold Recovery Plant

    NORTHERN DYNASTY MINERALS LTD. PEBBLE secondary gold recovery Plant1,2,3,4 Possible addition of a secondary gold recovery plant in Production Year 5, using the most efficient and permittable lixiviants available at the time any related permitting applications are made We continue to evaluate multipl

  19. Slide 19: A Path Forward

    NORTHERN DYNASTY MINERALS LTD. PEBBLE A PATH FORWARD TSX: NDM NYSE American: NAK

  20. Slide 20: Still working its way through the permitting process

    NORTHERN DYNASTY MINERALS LTD. PEBBLE STILL working its way through the permitting process Negative Record of Decision (ROD) Issued: November 25, 2020 Public Interest review (PIR) found Pebble to be ‘not in the public interest’ Compensatory mitigation plan (CMP) deemed ‘non-compliant’ ROD and PIR de

  21. Slide 21: Appeal of USACE Record of Decision Remanded

    NORTHERN DYNASTY MINERALS LTD. SE P T E M B E R 2 0 2 3 Appeal of USACE Record of Decision REMANDED Under U.S. regulatory law, permitting decisions for major development projects must be based on an ‘administrative record’ which, in Pebble’s case, includes the Final EIS published by the USACE in Jul

  22. Slide 22: EPA Fails to Follow its own Process

    NORTHERN DYNASTY MINERALS LTD. EPA Fails to Follow its own Process EPA “May Affect” Letter (3a) EPA “Will Affect” Letter (3b) Notice of Intent Environmental to Proceed Protection Agency Environmental CASE Elevation (“EPA”) must notify Protection Agency Review of Corps the U.S. Army Corps (“EPA”) mus

  23. Slide 23: Fundamental Flaws with EPA's Final Determination

    NORTHERN DYNASTY MINERALS LTD. Fundamental FLAWS WITH EPA’s FINAL Determination PLP’s submitted to the EPA (Sept 2022), noting flaws in their veto EPA has not exhausted specific measures during the permitting process to voice and address its concerns before issuing a Section 404(c) veto 404(c) actio

  24. Slide 24: Supreme Court Decided not to hear State appeal

    NORTHERN DYNASTY MINERALS LTD. Supreme Court Decided 1 not to hear State appeal to bypass lower courts Alaska asked the Supreme Court to opine whether it would hear its case against the EPA’s veto of Pebble without going through the Federal District Court system first Is NOT a comment on the merits

  25. Slide 25: NDM secures innovative royalty agreement up to $60 million

    NORTHERN DYNASTY MINERALS LTD. NDM secures innovative royalty agreement up to $60 million on non-core metals The Pebble Project requires time, patience and sufficient liquidity to successfully navigate the established legal process and continue ongoing efforts to work with the people in the region N

  26. Slide 26: Proven Leadership

    NORTHERN DYNASTY MINERALS LTD. SEPTEMBER 2023 PROVEN Leadership Management Board of directors Ronald Thiessen CEO / DIRECTOR Robert Dickinson Chairman Mr. Thiessen, a Chartered Professional Accountant (FPCA, FCA) with more than 25 years of Mr. Dickinson, an economic geologist with more than 40 years

  27. Slide 27: Supportive Shareholder Base

    NORTHERN DYNASTY MINERALS LTD. Supportive Shareholder Base Fully % Ownership2 Issued & Outstanding Options & other1 Diluted 100% INSTITUTIONAL 12.8% 538.5 M 36.7 M 575.2 M 90% 80% Balance Sheet & Trading Liquidity Major Shareholders4 C$18.2M Cash & Cash Equivalents 70% (December 31, 2023) • Kopernik

  28. Slide 28: Summary: Strong risk/return potential

    NORTHERN DYNASTY MINERALS LTD. Summary: Strong risk/return potential Copper: Pebble: Pebble: AN Important Metal For A U.S.-Based A Path America’s Green Future World Class Resource Forward Transition to Green Energy expected to Largest undeveloped copper/gold deposit Final EIS: no measurable impact o

  29. Slide 29: Appendix

    NORTHERN DYNASTY MINERALS LTD. APPENDIX

  30. Slide 30: Final Environmental Impact Statement (EIS)

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Final Environmental Impact Statement (EIS)1 Pebble EIS initiated December 2017; published July 2020 Intensive federal permitting process led by U.S. Army Corps of Engineers under National Environmental Policy Act (NEPA) Eight federal & three state cooperating ag

  31. Slide 31: Pebble Permitting Case: Right-Sized & De-Risked

    NORTHERN DYNASTY MINERALS LTD. Pebble Permitting Case: Right-Sized & De-Risked Permitting case reflects the Company’s efforts to mitigate and minimize risk where reasonably possible Conventional open-pit mine • 20-year operating life • Mining rate: ~70M tons per annum (avg) 180,000 ton-per-day proce

  32. Slide 32: Key Environmental Design Features

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Key Environmental Design Features Robust water management plan Primary Mine Facilities & Local Hydrography • 76 years of weather data Compact project footprint • 0.025% of Bristol Bay watershed • No impact on critical fish habitat • No permanent waste rock piles

  33. Slide 33: Tailings Storage Facilities (TSF)

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Tailings Storage Facilities (TSF) Two separate TSFs to manage bulk/non-PAG (1.0 billion tons) and pyritic/PAG (0.1 billion tons) material Bulk tailings can be stored sub-aerially Flow through main embankment (530 ft high) Lined southern embankment Flattened slop

  34. Slide 34: Final EIS Findings

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Final EIS Findings On subsistence fish & wildlife resources: • “Overall, impacts to fish and wildlife would not be expected to impact harvest levels. Resources would continue to be available because no population level decrease in resources would be anticipated.

  35. Slide 35: Final EIS: No measurable impact on fisheries

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Final EIS No measurable impact on fisheries Based on the Pebble Project design submitted for permitting, and considering all relevant environmental safeguards and mitigations, the USACE found that “impacts to Bristol Bay salmon are not expected to be measurable.

  36. Slide 36: Social integration with Bristol Bay region

    NORTHERN DYNASTY MINERALS LTD. Pebble Social integration with Bristol Bay region Pebble has multiple partnership agreements with Alaska Native landowners/stakeholders in the project area to deliver: • Transportation corridor access to Pebble mine site • Direct financial benefits, contracting and emp

  37. Slide 37: Alaska: A Proven Mining and Resource Development Jurisdiction

    NORTHERN DYNASTY MINERALS LTD. Alaska: A Proven Mining and Resource Development Jurisdiction Established mining industry: • Six operating mines and multiple late-stage development projects • Ranked #11 Globally for Investment Attractiveness by Fraser institute Annual Survey of Mining Companies 2022

  38. Slide 38: Among the World's Greatest Stores of Mineral Wealth

    NORTHERN DYNASTY MINERALS LTD. Pebble Among the World’s Greatest Stores of Mineral Wealth HELPING TO SECURE January 2024 AMERICA’S GREEN FUTURE 38

  39. Slide 39: Pebble Good Mining Ground

    NORTHERN DYNASTY MINERALS LTD. Pebble Good Mining Ground  Pebble Resource Estimate using a 0.3% CuEq cutoff Classification T onnes G rades R ecoverable Metal CuEq Cu Au Ag Mo Re Cu Au Ag Mo Re Million % % g/t g/t ppm ppm B lb M oz M oz B lb Kg Meas ured 527 0.65 0.33 0.35 1.7 178 0.32 3.35 4.58 20.

  40. Slide 40: Plan View and Cross Section

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Plan View and Cross Section The Pebble resource is based on 699 diamond core holes and >59,000 samples. Mineralization extends over a 4km by 3km area East-West Cross Section Through the Approximate Centre of the Resource Looking North A A’ Plan View at the Top S

  41. Slide 41: Proposed Project Mining

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Proposed Project Mining Standard open pit truck/shovel operation • 1.3 billion tons mill feed, 1.4 billion tons total (0.12:1 strip ratio) • 1 year pre-production, 20 years operation • No permanent waste rock facility • PAG waste and tails backfilled to the pit

  42. Slide 42: Metallurgical testwork

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Metallurgical testwork NDM testwork completed from 2004 to 2008 • Focused on flowsheet development • Comminution variability testing $10.5 million on metallurgical testwork from 2008 to 2013 • Managed by PLP • Majority of the testwork completed at SGS Lakefield

  43. Slide 43: Metallurgical recoveries by geometallurgical domain

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Metallurgical recoveries by geometallurgical domain Flotation Recovery to Concentrate Cu Conc Mo Conc Cu Au Ag Mo Supergene Sodic Potassic 74.7 60.4 64.1 51.2 Illite Pyrite 68.1 43.9 64.1 62.6 Hypogene Illite Pyrite 86.4 43.9 64.1 73.2 Sodic Potassic 86.2 60.4 6

  44. Slide 44: Conventional Froth Flotation Proposed Process Flow Sheet

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Conventional Froth Flotation PROPOSED Process Flow Sheet Note: See Disclosures Page 2 HELPING TO SECURE January 2024 AMERICA’S GREEN FUTURE 44

  45. Slide 45: Proposed Mine Site General Layout

    NORTHERN DYNASTY MINERALS LTD. PEBBLE PROPOSED Mine Site General Layout HELPING TO SECURE January 2024 AMERICA’S GREEN FUTURE 45

  46. Slide 46: Earthquake design

    NORTHERN DYNASTY MINERALS LTD. PEBBLE earthquake design Alaska earthquakes • Most active state in the U.S. • Critical design consideration Earthquake design in two steps • Probability based on history • Calculated worst case (maximum credible) Probability • Used USGS data • Based on accelerations du

  47. Slide 47: Earthquake design

    NORTHERN DYNASTY MINERALS LTD. PEBBLE earthquake design Maximum Credible Earthquake (MCE) • Evaluated all potential seismic sources in region • Selected 4 earthquakes 9.2 M Megathrust – 0.16g • Repeat of 1964 event 8.0 M Intraslab – 0.61g • Major event near port site 7.5 M Lake Clark Fault– 0.57g •

  48. Slide 48: Water management

    NORTHERN DYNASTY MINERALS LTD. PEBBLE water management Water management is a key project component • Need to protect salmon spawning habitat • Tailings management safety • Very specific and demanding discharge criteria • Required for process operations Water balance developed using: • 11 years of si

  49. Slide 49: Water Management

    NORTHERN DYNASTY MINERALS LTD. PEBBLE Water Management Water management plan • Designed to manage full range of expected precipitation • Minimize water storage in tailings facilities • Meet or exceed discharge quality criteria Water management facilities • Main Water Management Pond – primary storag

  50. Slide 50: Pebble: Transportation System

    NORTHERN DYNASTY MINERALS LTD. Pebble: Transportation System Access Road – Bridge Crossing North Ferry Terminal Ice Breaking Ferry South Ferry Terminal HELPING TO SECURE January 2024 AMERICA’S GREEN FUTURE 50

  51. Slide 51: Pebble: Concentrate Haulage in Containers

    Pebble: Concentrate Haulage in Containers Amakdedori port Permitting Case Access Corridor Concentrate Container Transfer Bulk container laydown yard Bulk Carrier Container Transfer 51

  52. Slide 52: Proposed Power Supply

    NORTHERN DYNASTY MINERALS LTD. PEBBLE PROPOSED POWER SUPPLY 270 MW natural gas-fired power plant at mine site • Smaller power plant at port site 168 mile pipeline to connect to Kenai Peninsula • Sub-marine crossing of Cook Inlet • Sub-lake crossing of Iliamna Lake Note: See Disclosures Page 2 HELPIN

  53. Slide 53: References & Source Material

    NORTHERN DYNASTY MINERALS LTD. References & Source Material SOURCES FOR SLIDE 25 • TECK: https://www.teck.com/investors/reserves-&-resources/reserves-and-resources • ANGLO AMERICAN: https://www.angloamerican.com/~/media/Files/A/Anglo-American-Group/PLC/investors/annual-reporting/2019/aa-ore-reserves

  54. Slide 54: Thank You

    TSX: NDM NYSE American: NAK Thank You COPPER: A Critical Metal For The U.S. Green Future PEBBLE: Contact Information A U.S.-Based World Class General Office 14th Floor Suite 405, 2525 Gambell Street Resource 1040 W. Georgia Street Anchorage AK 99503 Vancouver, BC Phone: (907) 339-2600 Canada V6E 4H1

Northern Dynasty Minerals — Investor Presentation (January 2024) on 6ix