Northern Star Resources Ltd · ASX:NST

Northern Star Resources — Technical Presentation (February 2020)

89 slides from Northern Star Resources's technical presentation, Feb 5, 2020

  1. Slide 1: Kalgoorlie Operations Site Visit Presentation – February 2020

    For personal use only An Australian gold miner - for global investors Kalgoorlie Operations Site Visit Presentation – February 2020

  2. Slide 2: Resources & Reserves and Forward Looking Statements

    Resources & Reserves and Forward Looking Statements Mineral Resources and Ore Reserves For personal use only Other than in relation to Appendices 1, 2 and 3, the Mineral Resources and Ore Reserves information, and exploration results reported in accordance with the 2012 edition of the Joint Ore Rese

  3. Slide 3: Kalgoorlie Operations Mining Overview

    For personal use only Kalgoorlie Operations Mining Overview (Excluding KCGM)

  4. Slide 4: Northern Star Kalgoorlie Operations

    Northern Star Kalgoorlie Operations ▪ FY2020 continues organic production For personal use only growth profile with guidance of 340,000oz – KB PLANT 380,000oz at AISC of A$1,260-A$1,370/oz 2.0Mtpa Processing facility. Free milling & refractory ▪ 5 Operating UG Mines ▪ Kanowna Belle ▪ Millennium ▪ HB

  5. Slide 5: Kanowna Belle

    Kanowna Belle For personal use only ▪ +5Moz orebody A Block ▪ Underground development began in 1995, production in 1998 B Block ▪ Lowest level in the mine is 1.3km below surface Velvet C Block ▪ Production targets ~1Mt per year @ 3.4g/t for 110k oz D Block E Block 30 June 2019 Total Resource 17,766t

  6. Slide 6: Mining Equipment

    Mining Equipment Trucks For personal use only ▪ Rigid Komatsu HD605 modified (KB Only) ▪ Articulated Sandvik TH663 – 63t Payload Loaders ▪ Sandvik 621 - 20t bucket ▪ Sandvik 517 - 17t bucket ▪ Remote capable Long hole Production Drills ▪ Epiroc Simba ME7C / S7D ▪ 76 or 89 mm hole size Development Ju

  7. Slide 7: KB Ore Haulage System

    KB Ore Haulage System For personal use only Main Haulage System: Primary location Articulated Ore pass Rigid ROM 7

  8. Slide 8: Kundana Region - 100% NST & EKJV (51% NST)

    Kundana Region - 100% NST & EKJV (51% NST) For personal use only Arctic / North Pit Millennium Centenary Strzelecki Pope John Xmas/Moonbeam Raleigh Raleigh South Pegasus/Pode Rubicon Hornet 8km 100% NST / 51% NST The Kundana mining area has been in operation for over 30 The current operational mines

  9. Slide 9: Narrow Vein Orebodies

    Narrow Vein Orebodies K2 Lode – Millennium, Pope John, Moonbeam, RHP Strzelecki Lode – Xmas, Raleigh For personal use only 9

  10. Slide 10: Mining Method - Longhole Open Stoping

    Mining Method - Longhole Open Stoping (MIL-PJ-MB) For personal use only 10

  11. Slide 11: Mining Method – Top down with Pastefill

    Mining Method – Top down with Pastefill (RHP-RAL) For personal use only 11

  12. Slide 12: Industry Leading Management of Mining at Depth

    Industry Leading Management of Mining at Depth ▪ Collaboration with For personal use only Western Australian School of Mines in a research project to develop effective and productive single pass ground support systems to ensure delivery of mine plan ▪ Achieved excellent ground support +1.8M Seismic

  13. Slide 13: NSR / NSMS - Delivering Superior Performance

    NSR / NSMS - Delivering Superior Performance Our Underground Mining Services Division (NSMS) is For personal use only implemented and operating at Kalgoorlie Operations Best of both worlds ▪ Geology, mine design & scheduling structured to allow for operational success ▪ Contractor-style productivity

  14. Slide 14: Maximising Quality of Ore - Split Firing

    Maximising Quality of Ore - Split Firing Increases quality of ore by removing For personal use only waste material from development heading as part of the mining cycle SF2 SF1 No impact to advance rates; Kundana achieving and maintaining industry leading physicals Impact of removing 30% waste from a

  15. Slide 15: Maximising Quality of Ore - Reducing Stope Dilution

    Maximising Quality of Ore - Reducing Stope Dilution Reduction in mining dilution through For personal use only ▪ More efficient drill design (zipper vs dice-5), optimised blasting design ▪ Drilling Accuracy (Minnovare Azi-Aligner) ▪ Better support of hanging wall, improved hanging wall protection Im

  16. Slide 16: Moonbeam – Rapid Mine Development

    Moonbeam – Rapid Mine Development For personal use only FY20 Millennium Centenary Pope John Moonbeam Building the ramp to start dewatering 16th June Dewatering complete 11th August Jumbo working in Moonbeam portal Friday 6th September Decline Breakthrough Achieved – 27th January 2020 16

  17. Slide 17: NST Operational Capability Delivers Superior Returns

    NST Operational Capability Delivers Superior Returns Moonbeam established as an additional production centre in FY2020 For personal use only Development and production profile with NST performance Comparable development and production profile at 500m per month per Jumbo at 300m per month per Jumbo D

  18. Slide 18: Kanowna Belle Geology Overview

    For personal use only Kanowna Belle Geology Overview

  19. Slide 19: Kanowna Belle Looking North

    Kanowna Belle Looking North For personal use only SIMs ▪ Kanowna Belle is a 5Moz ore body ▪ Average 4koz per vertical metre with ongoing Lowes drilling and re-interpretation to assist in growth and Velvet expansion ▪ 6 production blocks including Velvet ▪ Multiple lithological settings ▪ 1.3km from

  20. Slide 20: Kanowna Belle Stratigraphy

    Kanowna Belle Stratigraphy Footwall : Golden Valley conglomerate Undeformed, clast supported with minor veining For personal use only Fitzroy Shear zone Cataclasite, mylonite, fault gouge Hanging wall: KB Porphyry Sericite-carbonate-albite altered with disseminated pyrite, sulphide stringers and lat

  21. Slide 21: Development Cycle – Optimising Geological Control

    Development Cycle – Optimising Geological Control 3D Photogrammetry Face Sampling For personal use only Completed for all ore and critical waste headings to optimise geological integrity Completed for all ore headings, or where potential mineralisation is identified Sirovision a 3D image that the ge

  22. Slide 22: Kanowna Belle – In Mine Drilling Q1/Q2

    Kanowna Belle – In Mine Drilling Q1/Q2 Looking N-NE For personal use only ▪ 3 – 4 Rigs drilling Q1 and Q2 ▪ 3 Rigs leading into Q3 ▪ Total metres drilled ▪ Q1 – 44,695m ▪ Q2 – 30,758m ▪ Total of A$13.7M budgeted for drilling at KB this financial year 22 500m

  23. Slide 23: Kanowna Belle – In Mine Exploration

    Kanowna Belle – In Mine Exploration For personal use only Main Exploration focus for FY19-20 B Block – Troy, Hilder, Sims Sims C Block Velvet D Block East SIMs Reed 500m 500m ▪ Hanging wall structures exist throughout the system, and are currently being defined through geological and systematic targ

  24. Slide 24: Sims - Back to Basics - Geology

    Sims - Back to Basics - Geology ▪ Detailed wall and backs mapping of the Sims lodes ▪ Wall sampling – cross-cutting the ore lodes For personal use only Detailed Face/wall/access Mapping ▪ Lithological model update ▪ Sampling perpendicular to the ore body (basket) as well as horizontally ▪ Sirovision

  25. Slide 25: Sims – An Evolving Ore Body

    Sims – An Evolving Ore Body Conglomerate SX Structures For personal use only ▪ Complex Sims lode examples seen in core Old Vs New Grit ▪ Dip of lodes have moved towards ▪ Gold mineralisation hosted in quartz 70 degrees, strike remains similar veining with strong fuchsite alteration and shearing ▪ Di

  26. Slide 26: Velvet - Back to Basics - Geology

    Velvet - Back to Basics - Geology For personal use only ▪ Focus on reinterpretation - to take VM01 back to a geological wireframe and highlight the potential of mineralisation in porphyry in the hanging wall of the main lode ▪ New lodes highlighted and new stopes added 26

  27. Slide 27: Kanowna Belle Highlights FY20 Drilling To Date

    For personal use only Kanowna Belle Highlights FY20 Drilling To Date

  28. Slide 28: Kanowna Belle - A-Block Hanging Wall

    Kanowna Belle - A-Block Hanging Wall ▪ Extensive drill programs June 2019 Model Wireframes For personal use only Visible gold within WTGC19079 (within 1m @ 178g/t) to further identify and understand hangingwall geology and mineralisation LOOKING NORTH-WEST PLAN VIEW 10065mRL 240m November 2019 Model

  29. Slide 29: Kanowna Belle - A & B-Block Highlights FY19/20 Q1 & Q2

    Kanowna Belle - A & B-Block Highlights FY19/20 Q1 & Q2 West Troy GC Troy GC/RSD (Results in TW) (Results in TW) For personal use only KDU5227 3.9m @ 23.3g/t LOWARSD19280 11.8m @ 6.8g/t KDU5313 2.6m @ 25.7g/t TMRSD20002 5.7m @ 12.9g/t Looking N-E Lowes WT Lodes HM Lodes TM Lodes A/B-Block HW GC (Resu

  30. Slide 30: Kanowna Belle - A-Block Hangingwall Updates

    Kanowna Belle - A-Block Hangingwall Updates ▪ Updated mineralisation wireframes focusing more on lithological boundaries and visible, continuous structures For personal use only ▪ Minimising thickness of lodes allowed identification of individual parallel structures ▪ Results to date have shown stro

  31. Slide 31: Kanowna Belle - B/C East

    Kanowna Belle - B/C East ▪ Mineralisation open up dip and to the East, cannot drill this from current development 170m extension of 9830 OD23 will allow a complete drill out of current LE09 interp For personal use only ▪ ▪ Possibility for incremental drilling throughout development, increases drill

  32. Slide 32: Kanowna Belle Sims Ore Lodes

    Kanowna Belle Sims Ore Lodes For personal use only ▪ Clear lithological and structural controls ▪ Gold mineralisation hosted in quartz veining with strong fuchsite alteration and shearing ▪ Clear angled and more discrete structures ▪ Mix of free gold in quartz veins and disseminated gold as small in

  33. Slide 33: Kanowna Belle - Sims Highlights FY19/20 Q1 & Q2

    Kanowna Belle - Sims Highlights FY19/20 Q1 & Q2 C-Block Sims RSD/GC B-Block Sims RSD Contact structures (Results in TW) (Results in TW) For personal use only SMRSD19234 4m @ 22.8g/t KDU5232 0.3m @ 216g/t KDU5343 2.2m @ 81.3g/t KDU5418 6.7m @ 12.8g/t Looking N-E KDU5356 3.3m @ 167g/t TM Lodes SM Lode

  34. Slide 34: Kanowna Belle - Velvet

    Kanowna Belle - Velvet For personal use only Velvet Upper West ▪ Focus for Velvet exploration is to extend main lode up dip Velvet Upper HW / East and down dip and to close the gap with KB VM15 VM10 VM21 VM01 Velvet Lower RE01 Target for 2021 34

  35. Slide 35: Kanowna Belle - Velvet & D-Block Highlights FY19/20 Q1 & Q2

    Kanowna Belle - Velvet & D-Block Highlights FY19/20 Q1 & Q2 Looking North Looking East For personal use only Velvet West GC (Results in TW) KDU5274 5.8m @ 17.2g/t D-Block FW West KDU5271 6.3m @ 21.5g/t (Results in TW) Looking N-E FMGC19444 2.2m @ 33.5g/t KDU5271: Carbonate structures within brecciat

  36. Slide 36: KB Lower - D/E, Sims Extension and Velvet Reed

    KB Lower - D/E, Sims Extension and Velvet Reed For personal use only 36

  37. Slide 37: Kanowna Belle - D Block West Footwall Highlights

    Kanowna Belle - D Block West Footwall Highlights FY19/20 Q1 & Q2 ▪ Strong mineralisation intersected outside of current reserves Looking NE For personal use only PLAN VIEW Mineralisation trends HOLE INTERCEPT outside of reserves 2.2m @ 33.5g/t PLAN VIEW FMGC19444 0.9m @ 14.4g/t LOOKING SOUTH-EAST FM

  38. Slide 38: Kanowna Belle – E Block

    Kanowna Belle – E Block Looking North For personal use only OPEN OPEN OPEN Zena lodes – HW lodes open in all directions, potential extension from D to E block Planned Lowes Deep E/F Block drilling • Potential to add significant mine life to Kanowna Belle on the main Lowes ore body • Mineable interse

  39. Slide 39: Kanowna Belle Regional Geology

    Kanowna Belle Regional Geology For personal use only ▪ Two major splays extend from the Fitzroy Fault within the KB mine; ▪ The Chasers Splay in the south ▪ And the Friday Splay in the north ▪ ~2km of untested ground between KB, Red Hill and BLC ▪ ~1km of untested ground between KB & Consoles ▪ Dril

  40. Slide 40: Kalgoorlie Exploration

    For personal use only Kalgoorlie Exploration

  41. Slide 41: Kalgoorlie Exploration - Opportunity - Strategy - Results

    Kalgoorlie Exploration - Opportunity - Strategy - Results For personal use only Opportunity ▪ Quality (and size) of the ground holding ▪ ~14 Moz production to date ▪ Despite endowment, large tracts of ground lack systematic modern exploration Strategy ▪ Apply a systematic, back-to-basics targeting a

  42. Slide 42: Kalgoorlie Exploration - Opportunity - Strategy - Results

    Kalgoorlie Exploration - Opportunity - Strategy - Results Early stage Opportunity For personal use only ▪ World-class land holding for gold exploration ▪ …with amazingly under explored areas at Carnage, Tindall’s and Golden Eagle Carnage Applying disciplined Strategy to advance targets Carnage Regio

  43. Slide 43: Regional Opportunity

    For personal use only Regional Opportunity

  44. Slide 44: Carbine - Carnage Significant Regional Upside

    Carbine - Carnage Significant Regional Upside Hells Belles For personal use only Seven Seas Blister Dam Kansas Solid Exploration pipeline Bronze John Yellow Belle Highly prospective stratigraphy Red Wedding Hells Belles Italian George Phantom ▪ Bent Tree – Victorious Basalt Carbine Chadwin ▪ Ora Ban

  45. Slide 45: South Kalgoorlie Regional

    South Kalgoorlie Regional Colnago Triumph Early exploration Rapidly For personal use only success feeding approaching mining into district potential decision point Boulder-Lefroy Surface mapping Tindall’s identified near/in- Under-explored mine targets at HBJ region of the Coolgardie Goldfields Samp

  46. Slide 46: Back-to-basics Strategy

    For personal use only Back-to-basics Strategy

  47. Slide 47: Strategic Methodical Exploration

    Strategic Methodical Exploration For personal use only Identify the best opportunities to test Integrated mapping, Geochemistry Targeting prospective corridors geophysics and drilling and fresh rock drill testing Colnago Patchy inherited data St. Helens Fuji W 0-100ppm High resolution 2019 Data 47

  48. Slide 48: Advanced Project Results

    For personal use only Advanced Project Results

  49. Slide 49: Carbine – Near Mine Exploration

    Carbine – Near Mine Exploration Comic Court For personal use only CBRC18250: 29m at 2.4 g/t from 63m Recent discoveries CBRC19269: 3.0m at 7.18 g/t from 114 of new hanging wall Comic Court lodes and mineralised Phantom hanging wall lode 2 structures has OPEN CBDD19249: 4.97m at 46.2 g/t from 152.15m

  50. Slide 50: Carbine - Anthill

    Carbine - Anthill B For personal use only Gabbro A B Anthill Project Growth Potential ▪ The recent strategic tenement swap with HRZ Anthill Resource brought the Anthill project into the NSR portfolio (ex-HRZ) AHDD20148 ▪ Historical drilling was highly concentrated on Volcaniclastic Wacke the core re

  51. Slide 51: Triumph - Geology Host

    Triumph - Geology Host ▪ Coarse differentiated Gabbro/Dolerite about 2 km east For personal use only Triumph of the Boulder-Lefroy Fault Open Pit ▪ Preferentially but not exclusively in a granophyric zone of that sill Argo Underground Mineralisation TRIDD20002A at 304 m ▪ Gold associated with sub-ho

  52. Slide 52: Triumph

    Triumph For personal use only 5m @ 11.3g/t 7m @ 20.5g/t 2m @ 20.1g/t Depth 2 m Previous Intercept NST Intercept 100 m Pending assays 52 Oblique - Looking SW 850 m

  53. Slide 53: Kalgoorlie Exploration - Opportunity - Strategy - Results

    Kalgoorlie Exploration - Opportunity - Strategy - Results • Quality landholding covering the most prospective structural corridors For personal use only of the Kalgoorlie Goldfields • Decisively testing targets with a comprehensive back-to-basics approach • Recent results at Triumph include 34.2m @

  54. Slide 54: Kundana (100% NST) Geology Overview

    For personal use only Kundana (100% NST) Geology Overview

  55. Slide 55: Kundana Regional Overview

    Kundana Regional Overview ▪ The Kundana mining complex was officially opened 10 December 1988 For personal use only ▪ Last financial year (FY18-19) Northern Star drilled over 150,000 m (both underground and surface) across both Kundana and EKJV tenure ▪ Further 150,000 m projected for this financial

  56. Slide 56: Kundana Narrow Vein Main Lodes

    Kundana Narrow Vein Main Lodes Strzelecki Line K2 Line For personal use only 56

  57. Slide 57: Kundana – Hanging wall Lodes

    Kundana – Hanging wall Lodes K2B (upper) Kratos For personal use only Pode Pode Hera RHP Pode PodH development Ares (background) K2B (central) Clio Apollo K2B (lower) Maia Hera Raleigh Hera development Brizo (foreground) Styx Rhea N 250m Pegasus Pode/Hera ore lodes workings ▪ Low angle structures in

  58. Slide 58: Falcon – Maiden Resource

    Falcon – Maiden Resource N RHP development (background) For personal use only Falc4 Falc1 Falc7 Falc5 Falc2 Falc3 Falc8 Falc6 Pegasus 250m Kundana workings Raleigh development (foreground) M16/157 (100%) ▪ Maiden resource released August 2019 ▪ 75,000m of drilling scheduled for FY19-20 140m ▪ Foreca

  59. Slide 59: K2 Stratigraphy

    K2 Stratigraphy For personal use only K2 structure occurs on the unconformity between the Black Flag volcaniclastics and the Victorious basalt . The K2 structure at Kundana hosts economic mineralisation including Millennium, Pope John, Centenary, Moonbeam and RHP 59

  60. Slide 60: Falcon Mineralised Corridor

    Falcon Mineralised Corridor For personal use only R H P R A L The Falcon mineralised corridor occurs internal to the Black Flag volcaniclastics associated with interbedded siltstone and sandstone horizons with multiple repeated surfaces identified to date in drilling. Current mining infrastructure a

  61. Slide 61: Strzelecki Stratigraphy

    Strzelecki Stratigraphy For personal use only Strzelecki structure occurs on the western contact between the Black Flag Volcaniclastics and the Powder Sill gabbro – The Strzelecki structure hosts economic mineralisation at Kundana including Strzelecki, Xmas and Raleigh 61

  62. Slide 62: Overview Kundana (NST 100%)

    Overview Kundana (NST 100%) KUNDANA EKJV For personal use only N NST NST 100% 51% Tenement Boundary Reserve 500m Resource Prospect 62

  63. Slide 63: Kundana 100% NST Resource and Reserves (FY19)

    Kundana 100% NST Resource (FY19) 1.39Moz Kundana 100% NST Reserves (FY19) 588koz For personal use only KUNDANA EKJV N NST NST Pope John 100% 51% Centenary Resource – 187 koz Resource – 154 koz Reserves – 110 koz Millennium Reserves – 72 koz Resource – 122 koz Reserves – 55 koz Moonbeam Resource – 20

  64. Slide 64: Millennium/Pope John - Continuing Current Production

    Millennium/Pope John - Continuing Current Production KUNDANA EKJV For personal use only N NST NST 100% 51% 500m 64

  65. Slide 65: Millennium/Pope John - Continuing Current Production

    Millennium/Pope John - Continuing Current Production PJGC19013 0.36 m (tw) @ 29.9 g/t MILLGC19003 - 4.7m (tw) @ 5.57g/t For personal use only N Centenary Pope John PJRSD19022 0.5 m (tw) @ 29.2 g/t MILLRSD19003 – 1.5m (tw) 21.0 g/t PJRSD19010 0.4m (tw) @ 6.67g/t MILLRSD19013 - 3.9m (tw) 8.84 g/t PJRS

  66. Slide 66: Moonbeam/Xmas – New Production Area

    Moonbeam/Xmas – New Production Area KUNDANA EKJV For personal use only N NST NST 100% 51% 500m 66

  67. Slide 67: Moonbeam/Xmas – New Production Area

    Moonbeam/Xmas – New Production Area N For personal use only Strzelecki Pope John Moonbeam XMRSD19161 0.3 m (tw) @ 25.6 g/t. XMRSD19162 0.6 m (tw) @ 28.7 g/t XMRSD19155 0.1 m (tw) @ 68.3 g/t XMRSD19183 0.2 m (tw) @ 52.5 g/t XMRSD19194 0.1 m (tw) @ 53.7 g/t XMRSD19173 0.2 m (tw) @ 114 g/t 250m 67

  68. Slide 68: Moonbeam/Xmas – New Production Area

    Moonbeam/Xmas – New Production Area ▪ Moonbeam accessed from existing drill drive at Pope John and the recently established Moonbeam portal For personal use only Pope John ▪ Development is currently being established in Moonbeam (K2 N Main Vein) and Xmas (Strzelecki Structure) Strzelecki ▪ FY19-20 y

  69. Slide 69: Xmas – First Ore Development

    Xmas – First Ore Development Oblique view For personal use only northeast Moonbeam Portal N Moonbeam LF6093N_051 -> Non split fire = 228t @ (K2 CMV) 12.4 g/t Au Xmas (Strzelecki Structure) 50m ▪ To reduce dilution of ore and maximise grade, the Kundana operation split-fires development headings wher

  70. Slide 70: Looking Forward – Potential Outside Main Structures

    Looking Forward – Potential Outside Main Structures For personal use only N Pope John KUNDANA EKJV NST NST 100% 51% Looking East Strzelecki N Moonbeam EKJV Xmas NST 50% Strzelecki Moonbeam Prospect ▪ Limited exploration conducted outside of the Strzelecki Barkers and K2 structures on the 100% NSR te

  71. Slide 71: Drill Targeting - 100% NSR ‘Falcon Corridor’

    Drill Targeting - 100% NSR ‘Falcon Corridor’ For personal use only N Prospect Pope John EKJV KUNDANA NST NST 51% 100% Moonbeam Moonbeam Strzelecki Xmas EKJV NST Falcon 50% MBDT20002 from 505 m (visible Raleigh gold intersected at target horizon) Barkers Raleigh 500m 71

  72. Slide 72: Appendix - Drilling Results: Kanowna Belle Drilling Physicals

    ASX Announcement 5 February 2020 APPENDIX 1 - DRILLING RESULTS For personal use only KANOWNA BELLE DRILLING PHYSICALS Hole True East North RL Dip Azi From To DH Width Grade Hole ID Depth Width (MGA) (MGA) (AHD) (degrees) (MGA) (m) (m) (m) g/t Au (m) (m) FMGC19444 363615 6612441 -478 -40 038 19.6 1.2

  73. Slide 73: Appendix - Drilling Results: Kundana Significant Assay Results

    ASX Announcement 5 February 2020 APPENDIX 1 - DRILLING RESULTS For personal use only KUNDANA SIGNIFICANT ASSAY RESULTS Hole True East North RL Azi From To DH Width Grade Hole ID Dip Depth Width (MGA) (MGA) (AHD) (MGA) (m) (m) (m) g/t Au (m) (m) MILLGC19003 330632 6602079 117 31 257 486.5 0 5.57 5.57

  74. Slide 74: Appendix - Drilling Results: Triumph Intercepts

    ASX Announcement 5 February 2020 APPENDIX 1 - DRILLING RESULTS For personal use only PREVIOUSLY RELEASED TRIUMPH INTERCEPTS End of Drill hole Azimuth Downhole Downhole Downhole Grade Drill Hole Easting Northing Dip hole collar RL (degrees, From To Intersection Au (gpt) # (MGA) (MGA) (degrees) depth

  75. Slide 75: Appendix – Table 1: Kanowna Belle Mine Sampling Techniques and Data

    ASX Announcement 5 February 2020 APPENDIX 2 – TABLE 1s For personal use only JORC Code, 2012 Edition – Table 1 Report Kanowna Belle Mine – 5 February 2020 Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria JORC Code explanation Commentary Sam

  76. Slide 76: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code explanation Commentary Sub-sampling If core, whether cut or sawn and whether quarter, half or all core taken.  All diamond core that was half-core sampled was cut longitudinally with an automated core saw

  77. Slide 77: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code explanation Commentary Orientation of Whether the orientation of sampling achieves unbiased sampling of possible structures  All drilling is oriented as close as practical to perpendicular to the target s

  78. Slide 78: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code explanation Commentary  The Kanowna Belle deposit is hosted by sedimentary volcanoclastic and conglomeratic rocks which are separated into hangingwall and footwall sequences by a major, steeply SSE dippin

  79. Slide 79: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code explanation Commentary Relationship These relationships are particularly important in the reporting of Exploration Results.  The orientation of target structures is well known for all in-mine exploration

  80. Slide 80: Appendix – Table 1: Kundana Mine Sampling Techniques and Data

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only JORC Code, 2012 Edition – Table 1 Report Kundana Mine – 5 February 2020 Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria JORC Code Explanation Commentary Sampling N

  81. Slide 81: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Sub-sampling If core, whether cut or sawn and whether quarter, half or all core taken.  All diamond core that was half-core sampled was cut longitudinally with an automated core saw

  82. Slide 82: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Data spacing Data spacing for reporting of Exploration Results.  Drill hole spacing varies across the deposit. For resource targeting drilling spacing was typically a minimum of 80

  83. Slide 83: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary  Pope John is a continuation of the Centenary K2 trend. Starting in the north from the Pope John Fault which separates Pope John and Centenary, offsetting the Pope John K2 lode appr

  84. Slide 84: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Other Other exploration data, if meaningful and material, should be reported including (but not  No other material exploration data has been collected for this drill program. substa

  85. Slide 85: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Drill sample Method of recording and assessing core and chip sample recoveries and results  For diamond drilling the contractors adjust their rate of drilling and method if recovery

  86. Slide 86: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Quality of assay The nature, quality and appropriateness of the assaying and laboratory procedures used  Routine samples are assayed with fire assay. data and and whether the techni

  87. Slide 87: Appendix – Table: Kalgoorlie Regional Exploration

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Audits or The results of any audits or reviews of sampling techniques and data.  No audits or reviews have recently been conducted on sampling techniques, however lab audits are con

  88. Slide 88: Appendix – Table

    ASX Announcement 17 October 2019 APPENDIX 3 – TABLE 1 For personal use only Criteria JORC Code Explanation Commentary Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some

  89. Slide 89: Northern Star Resources Limited – Investor Enquiries

    For personal use only Northern Star Resources Limited ASX Code: NST An Australian mid cap gold miner – for global investors Investor Enquiries: Luke Gleeson, Investor Relations Level 1, 388 Hay Street, Subiaco 6008 Western Australia T: +61 8 6188 2100 E: info@nsrltd.com W: www.nsrltd.com Inventum 3D

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