Northern Star Resources Ltd · ASX:NST
Northern Star Resources — Technical Presentation (February 2019)
102 slides from Northern Star Resources's technical presentation, Feb 5, 2019
Slide 1: Kalgoorlie Operations Site Visit Presentation
For personal use only Kalgoorlie Operations Site Visit Presentation February 2019
Slide 2: Competent person statements and forward looking statements
Competent person statements and forward looking statements Competent Persons Statements The information in this announcement that relates to exploration results, data quality and geological interpretations for the Company’s Australian Project areas is based on information compiled by Michael Mulrone
Slide 3: Kalgoorlie Operations Mining Overview
For personal use only KALGOORLIE OPERATIONS MINING OVERVIEW
Slide 4: Northern Star Kalgoorlie Operations
Northern Star Kalgoorlie Operations For personal use only Operational Profile 5 Operating UG Mines ▪ Kanowna Belle ▪ Millennium ▪ HBJ ▪ Raleigh (51% NST) ▪ Rubicon-Hornet-Pegasus (51% NST) ▪ 2 Processing Facilities ▪ Kanowna Belle – 2Mtpa ▪ Jubilee – 1.2Mtpa 4
Slide 5: Kanowna Belle Underground
For personal use only Kanowna Belle Underground
Slide 6: Kanowna Belle – Pit & Portal
Kanowna Belle – Pit & Portal For personal use only 6
Slide 7: Kanowna Belle – Overview
Kanowna Belle – Overview Underground development began in For personal use only 1995, production in 1998 Lowest level in the mine is 1.3km below surface Kanowna Belle (KB) has been a +100kozpa for the past 25 years Decline dimensions – 6.0m x 6.5m – Decline grade 1:8 to 10 010mL, 1:7 remainder Level
Slide 8: KB Reserve Long Section
KB Reserve Long Section For personal use only 8
Slide 9: KB Mining Method
KB Mining Method Longhole Open Stoping For personal use only Stope: Large hole between drives for production 1 .Development 30m sub-levels 15-20m strike 5-20m wide 102mm holes 2. Drilling- Up/ Down holes Multi-lift stopes in upper mine Single lift stopes in lower mine – 10 000t - 15 000t 3. Blasting
Slide 10: KB Mining Equipment
KB Mining Equipment Rigid Frame Trucks For personal use only 3x new units arriving over coming months Komatsu HD605 being modified for UG now Loaded with a Plate Feeder at 9620 level Articulated Trucks 7x units, dropping to 3 when rigids are commissioned Pay load of 65t Sandvik TH663 10
Slide 11: KB Mining Equipment
KB Mining Equipment Loaders For personal use only 1x Sandvik 621 – 20t bucket 3x Sandvik 517 – Bucket load of 14 t – 2x remote capable Long hole Production Drill Simba E7 – 102 mm Development Jumbos 2 x Sandvik HD421 (Twin booms) 11
Slide 12: KB Stope Remote Bogging
KB Stope Remote Bogging For personal use only Laser Barriers Remote PC Loader Safe Parking location Remote Antenna (Yargi) 12
Slide 13: KB Ore Haulage System
KB Ore Haulage System For personal use only Main Haulage System: 13 Primary location Articulated Ore pass Rigid ROM
Slide 14: KB Ore Haulage System
KB Ore Haulage System For personal use only 9740 RL 9680 RL 9620 Plate Feeder Mid way down the mine Remote operated 9620 RL Feeds by strokes into Rigid haul trucks Articulated trucks or boggers feed the passes 14
Slide 15: Kanowna Belle – Paste Fill
Kanowna Belle – Paste Fill Wet Paste Fill For personal use only Uses dewatered tailings as a high density fill Allows for delivery to stopes by pipe Advantages of Wet Paste Fill Trucks not required Safer Easier Cheaper Tighter filling of stopes No segregation problems Improved cement control mixed o
Slide 16: Kundana – Millennium (100% NST) and EKJV (51% NST)
For personal use only Kundana – Millennium (100% NST) and EKJV (51% NST)
Slide 17: Kundana Mines (Millennium, Raleigh, Rubicon, Hornet & Pegasus)
Kundana Mines (Millennium, Raleigh, Rubicon, Hornet & Pegasus) Kundana - Major Gold Deposits The Kundana mining area has been in operation For personal use only North Pit for over 30 years (100% NST) Millennium The current operational mines are Millennium (100% NST) Centenary (100% NST) (100% NST),
Slide 18: Raleigh (EKJV 51% NST)
Raleigh (EKJV 51% NST) Raleigh Decline For personal use only development commenced in December 2004 Raleigh first production in February 2006 Over 1M ounces mined from underground Lowest level in the mine is 730m below surface 18
Slide 19: Rubicon – Hornet – Pegasus (EKJV 51% NST)
Rubicon – Hornet – Pegasus (EKJV 51% NST) For personal use only Rubicon-Hornet Decline development commenced in February 2011. First production stoping in February 2012 Pegasus Link Decline commenced in April 2014. First production stoping in February 2015 Lowest level in the mine is 690m below surf
Slide 20: Millennium/Centenary/Pope John
Millennium/Centenary/Pope John For personal use only Millennium Centenary Pope John Millennium Decline development commenced in August 2016, first production stoping in September 2017 Lowest level in the mine is 540m below surface 20
Slide 21: Narrow Vein Orebodies
Narrow Vein Orebodies K2 Lode – Millennium, Rubicon – Hornet – Pegasus Strzelecki Lode - Raleigh For personal use only 21
Slide 22: Development Cycle
Development Cycle Completed for all ore headings, or where For personal use only potential mineralisation is identified Samples are broken up into several ‘domains’ which are used to make a 3D grade model to predict future PHOTO GRAMMETRY development and stope grades Requires: - Full ground support
Slide 23: Photogrammetry
Photogrammetry To this… 5945 N face #31 4 photos are required to For personal use only Raw photo create a 3D image of a Faulting face. As well as the CMV boundaries pink control points, ore drive bore directions are sprayed up on the drive wall Ore drive From this… directions From this… Shears Once
Slide 24: Production Cycle – Top-down with Paste Fill
Production Cycle – Top-down with Paste Fill For personal use only 24
Slide 25: Production Cycle – Bottom-up with Rock Fill
Production Cycle – Bottom-up with Rock Fill For personal use only 25
Slide 26: Drill & Blast Design
Drill & Blast Design Firing 1 Firing 2 Result For personal use only 26
Slide 27: Production Cycle – Stope Reconciliation
Production Cycle – Stope Reconciliation LONG SECTION 6005-590 PLAN SECTION For personal use only HANGINGWALL Lower Parallel Fault UNDERBREAK UNDERBREAK UNDERBREAK FOOTWALL RESERVE GRADE CONTROL OVERBREAK AS MINED 27
Slide 28: Production Cycle – Paste Fill, Paste Barricade
Production Cycle – Paste Fill, Paste Barricade For personal use only 28
Slide 29: South Kalgoorlie – HBJ Underground
For personal use only South Kalgoorlie – HBJ Underground
Slide 30: HBJ Underground
HBJ Underground For personal use only 30 ## Refer to Listing Rule 5.23 Disclosure on slide 2
Slide 31: Northern Star Mining Services
For personal use only Northern Star Mining Services
Slide 32: NSMS Division, an integral piece of premium underground capability
NSMS Division, an integral piece of premium underground capability Underground Mining Services Division is effectively an “In-house” mining contractor, we do not follow a For personal use only traditional owner-miner model This division helps to insulate Northern Star from industry wide cost inflati
Slide 33: Value of NSMS to NST
Value of NSMS to NST Simplifies running the overall business: Allows technical teams to focus on mine life, mine design & scheduling For personal use only NSMS focuses on operational execution; optimising people and equipment Reduced cost, equal or better productivities compared to an underground co
Slide 34: NSMS Moving forward, our preparedness
NSMS Moving forward, our preparedness NSMS is a premium service provider paralleled to best underground For personal use only pure play contracting businesses that delivers key benefits of Safety, Quality, Productivity, Cost Lean and efficient at capital employed, fleet utilisation, inventory manage
Slide 35: Geology Overview – Kanowna Belle
For personal use only GEOLOGY OVERVIEW KANOWNA BELLE
Slide 36: Kanowna Belle
Kanowna Belle Kanowna Belle is a +5Moz orebody For personal use only Looking North Average 4koz per vertical metre with ongoing exploration from 10360mRL A to E block Mining fronts distributed across KB orebody’s in a mix of in- 9985mRL situ Lowes style mineralisation and virgin lodes 9860mRL KB in
Slide 37: Kanowna Belle Current Resource & Reserve statement
Kanowna Belle Current Resource & Reserve statement Kanowna Belle MY18 Reserves and Resources## For personal use only KB PIT 33.6 119.5 153Koz A BLOCK 86.4 104.0 190Koz B BLOCK 50.5 66.9 117Koz C BLOCK 134.3 166.5 301Koz D BLOCK 128.2 94.8 223Koz E BLOCK 78.7 500.9 579Koz V BLOCK 104.5 49.6 154Koz 0
Slide 38: KB – Regional Geological setting
KB – Regional Geological setting For personal use only Archean Yilgarn craton Eastern Goldfields Kalgoorlie Terrane - Norseman-Wiluna Greenstone Belt Boorara Domain 38
Slide 39: Kanowna Belle – Deposit Geology
Kanowna Belle – Deposit Geology Mineralisation on two main lode orientations; Fitzroy Parallel (Lowes) and Kanowna Belle simplified cross-section shows location of the Kanowna Belle porphyry on the hanging wall of the Fitzroy Structure For personal use only crosscutting high grade lodes (Sims, Troy
Slide 40: Kanowna Belle – Deposit Geology
Kanowna Belle – Deposit Geology For personal use only Velvet Link 6 blocks (including Velvet) 1.3km from surface and open Mineralisation drilled and open 400m below current infrastructure Velvet sits 600m to the West and 700m below surface Bulk of mineralisation within porphyry and grit along the Fi
Slide 41: Kanowna Belle – where has the growth come from?
Kanowna Belle – where has the growth come from? When NST took ownership in 2014 KB was due to close due to a declining reserve life due to a lack of investment into exploration For personal use only Since 2014 under NST ownership KB has experienced year on year growth in Reserve and Resources driven
Slide 42: Kanowna Belle – The Opportunity
Kanowna Belle – The Opportunity For personal use only Sims C- Block Velvet Xena Velvet Link FY18 Reserves and Non Reserve stopes Kanowna long section looking grid north showing drill intercepts over Stopes mined to date 3g/t, key areas of focus and opportunities for growth Lowes and Velvet mineralis
Slide 43: Kanowna Belle – D/E Block Porphyry Xenoliths
Kanowna Belle – D/E Block Porphyry Xenoliths Current Modelled 4 parallel For personal use only KDU4636 –6.4m @ 14.1g/t (90.2gm) lodes in Hanging wall to KDU4634 –12.9m @ 4.4g/t (61.7gm), 14.7m @ 4.2g/t (56.8gm) Lowes KDU4635 – 7m @ 5.8g/t (40.6gm) Orientation is oblique to and KDU4734 – 10.2m @ 3.1g
Slide 44: Kanowna Belle – Velvet Link
Kanowna Belle – Velvet Link Ore grade drill intercepts in the KDU4573– 14.2m @ 22.4g/t (318gm) +800m window between 6Moz For personal use only KDU4778 – 9.9m @ 13.7g/t (135.63gm) KDU4777 – 9.2m @ 14.4g/t (132.48gm), 3m @ Kanowna Belle system and the 6Moz 23.65 (70.95gm) 0.4Moz Velvet deposit KDU4313
Slide 45: Kanowna Belle – Hanging Wall Parallel and Oblique lodes
Kanowna Belle – Hanging Wall Parallel and Oblique lodes Hanging wall mineralisation Cross section looking West . Continue to return strong results in Lowes parallel lodes and the oblique systems (Troy, For personal use only ? Sims etc) stepping out into the hanging wall ? Hanging wall offers high gr
Slide 46: Kanowna Belle – Room for more
Kanowna Belle – Room for more Recent drilling confirms historical mineralisation on Lowes/Fitzroy to the For personal use only KDU4654 11.12m @ 7.1g/t (78gm) DHW east Establish drill position to test for SE plunging shoots from edge of Known ore body East of KB on Fitzroy Fault remains untested at d
Slide 47: Regional Exploration Update
For personal use only REGIONAL EXPLORATION UPDATE
Slide 48: Kundana Region Overview
Kundana Region Overview For personal use only The Kundana mining complex was officially opened 10 December 1988 Northern Star has drilled over 60,000m (underground and surface) YTD across Kundana and EKJV Focus areas are the K2, PODE, RMV and all HW lodes associated with gold mineralisation FY2019 m
Slide 49: Kundana
For personal use only Kundana
Slide 50: Kundana – NST 100% Overview
Kundana – NST 100% Overview KUNDANA EKJV For personal use only NST 100% NST 51% POPE JOHN FAULT LUCIFER FAULT Tenement Boundary Reserve Resource EVN 500M Prospect 50
Slide 51: Millennium and Pope John
Millennium and Pope John For personal use only MILLENNIUM CENTENARY POPE JOHN PJRSD18049 MILLGC18130 1.02m @ 21.2g/t 4.35m @ 9.2g/t MILLGC18028 6.14m @ 9.1g/t MILLGC18026 8.41m @ 5.5g/t PJRSD18032 MILLGC18135 0.66m @ 14.8 g/t 5.8m @ 12.2g/t MILLGC18134 PJRSD18051 3.2m @ 4.1g/t 1.8m @ 16.2g/t MILLRSD
Slide 52: Xmas Link Drive – Next Production Centre
Xmas Link Drive – Next Production Centre For personal use only N Xmas (Strzelecki) Lode 180 m Pope John Xmas Link Drive (actual) Xmas Link Drive (design) 52
Slide 53: Strzelecki and Moonbeam
Strzelecki and Moonbeam CHDD18009 MBDD18026 0.3m @ 61.1 g/t 0.9m @ 19.5 g/t MBDD18003 For personal use only 1.6m @ 28.8g/t CHDD18004 0.3m @ 146 g/t CHDD18013 MBDD18007 0.81m @ 42.4 g/t 1.8m @ 23.8 g/t CHDD18016b 0.94m @ 19.9g/t MBDD18008 1.1m @ 69.0 g/t CHDD18017 0.95m @ 10.9g/t MBDD18031 1.9m @ 18.
Slide 54: EKJV (51% NST)
For personal use only EKJV (51% NST)
Slide 55: Kundana – EKJV Overview
Kundana – EKJV Overview Kundana EKJV For personal use only NST 100% NST 51% KURRAWANG STARTREK PEGASUS RUBICON HORNET Tenement Boundary EVN Reserve Resource NN Prospect 500M 55
Slide 56: EKJV – RHP Drilling Snapshot
EKJV – RHP Drilling Snapshot PEGASUS RUBICON HORNET For personal use only RUBGC18076 2.5 m @ 5.8 g/t PEGRSD18152 (Polaris) 0.3 m @ 73.2 g/t N PEGRT18304 RUBGC18077 0.8 m @ 37.5 g/t 1.7 m @ 10.8 g/t (K2E) PEGRT18221 0.3 m @ 45.7 g/t PEGRT18220 0.4 m @ 29.3 g/t PEGRT18385 2.2 m @ 6.8 g/t PEGRT18224 0.
Slide 57: PODE – A Growing Success Story
PODE – A Growing Success Story PODE N For personal use only PEGGC18325 2.6m @ 13.1 g/t PEGGC18319 1.9m @ 34.6 g/t PEGRSD18353 1.0 m @ 5.99 g/t PEGRT18387 3.2 m @ 5.9 g/t PEGRSD18355 1.3 m @ 6.96 g/t PEGRSD18360 0.3 m @ 9.9 g/t 500M 57
Slide 58: Raleigh South – Developing South to Sadler
Raleigh South – Developing South to Sadler For personal use only N RALEIGH RALEIGH STH SADLER SADRSD18004 RRDD18003 RALRT18302 0.15m @ 9.9g/t 0.8m @ 56.5g/t 0.21m @ 35.9g/t RDCD18014 0.6m 9.1g/t RALRT18303 0.77m 13.6g/t SADRSD18001 RALRT18305 0.12m @ 20.2g/t 0.69m @ 22.6g/t RALRT18301 0.65m @ 20.4g/
Slide 59: Raleigh South to Golden Hind Exploration
Raleigh South to Golden Hind Exploration For personal use only RALEIGH STH SIR WALTER GOLDEN HIND N SWCD18016 1.5m @ 1.8g/t RRCD18016 SWCD18012 0.3 @ 6.1g/t 0.5m @ 12.3 g/t RRDD18024 0.5m @ 13.1g/t RRCD18014 0.6m @ 9.1g/t SWCD18018 5.3m @ 21.5g/t RRDD18023 Incl. 0.3m @ 134.g/t 1.1m @ 38.9g/t SWCD180
Slide 60: South Kalgoorlie
For personal use only South Kalgoorlie
Slide 61: SKO – HBJ Geology Background
SKO – HBJ Geology Background For personal use only N Mutooroo NOZ COZ SOZ South Jubilee Shear hosted (Boulder Lefroy) mineralisation associated with porphyry Intrusive and low strain regions along the shear Mineralised zones are separated specially into 5 areas Multiple parallel lodes associated wit
Slide 62: HBJ UG - Limited Drill Density
HBJ UG - Limited Drill Density Mutooroo NOZ COZ SOZ South Jubilee For personal use only 4500m RD Open History Limited drill density below current mining areas No Drill drive development, previous drilling restricted to decline and development Limited drilling beyond existing mining fronts Limited ex
Slide 63: HBJ UG - Drilling Results
HBJ UG - Drilling Results Mutooroo MUTOORO NOZ NOZ COZ COZSOZ SOZ JUBILEE South JUBILEE O For personal use only North NOZ B-Block RSD – True Widths HBJUG0576 – 4.3 m @ 4.6 g/t HBJUG0584 – 4.7 m @ 2.8 g/t HBJUG0588 – 2.4 m @ 8.1 g/t HBJUG0591 – 3.7 m @ 3.6 g/t HBJUG0594 – 3.8 m @ 10.4 g/t HBJUG0595 –
Slide 64: Kalgoorlie Regional
For personal use only Kalgoorlie Regional
Slide 65: Kalgoorlie Regional
Kalgoorlie Regional Over 2,000km2 of exploration For personal use only Ol’ Rowley (Carbine Hangingwall) and freehold tenure Ariel Largest landholder in the (Velvet Analogue) Kalgoorlie region Based around large historic and current production centres Covers all the major structural corridors of the
Slide 66: Kanowna Belle - Ariel
Kanowna Belle - Ariel For personal use only Porphyry-Mafic Complex Mafic Mafic Dacite ARIEL PINK FLOYD ~30m wide zone of elevated gold grades (final assays pending) Target intrusive Golden Valley Conglomerate Late Basin Panglo Polymictic Kanowna Belle Sandstones Conglomerate Velvet Kanowna Belle Low
Slide 67: Kanowna Belle - Ariel Drilling
Kanowna Belle - Ariel Drilling Recent drilling of historic For personal use only Mafic GVD137 ARRC18005 9m @ 4.7g/t anomaly 12m @ 4.3g/t Significant intersections Dacite within, and on contacts, of Untested ARRC18006 felsic intrusive(s) 1m @ 6.9g/t Mineralisation is open in all directions KDD10_03 N
Slide 68: SKO – Exploring in the heart of the Goldfields
SKO – Exploring in the heart of the Goldfields Over 1,000km2 of exploration For personal use only and freehold tenure Extensive production history Fragmented ownership dating back to 1980’s Contains strike continuation of Boulder-Lefroy fault system – key to the Golden Mile Plus all the major struct
Slide 69: SKO Regional – Just the Beginning
SKO Regional – Just the Beginning Tornado For personal use only (Zuleika Shear Splay) TODD18162 15.0m @ 1.0 g/t Glasswing 26.2m @ 1.6 g/t XGRC18005 11.3m @ 0.8g/t 21.0m @ 2.3g/t Incl. 3.0m @ 7.6g/t Samphire SPDD17001 2.0m @ 43.8g/t 0.4m @ 24.8g/t 3.3m @ 4.4g/t SPDD17002 1.9m @ 5.3g/t 0.35m @ 17.6g/t
Slide 70: Samphire
Samphire For personal use only Untested 200 m 200 m Untested Current Pit = 1.7 km Samphire pit, 8km west of HBJ Mill Mined 124,000 ozs at 2.33 g/t in oxide ore only, mining concluded in 1996 Gold is hosted in sub-vertical quartz veins within the Samphire dolerite 0.7 m @ 3.0 g/t 0.6 m @ 7.0 g/t 1.0
Slide 71: Tornado
Tornado For personal use only 8 m @ 1.38 g/t 18 m @ 2.03 g/t 14 m @ 1.3 g/t 15 m @ 1.0 g/t TODD18162 26.2 m @ 1.6 g/t 11.3 m @ 0.8 g/t First follow up of RAB historic anomaly 1.9 m @ 1.8 g/t TODD18162 drilled beneath known surface mineralisation Two broad mineralised zones intersected Follow up dril
Slide 72: Carbine Regional Exploration
Carbine Regional Exploration For personal use only Existing Resources 72
Slide 73: Carbine Trend
Carbine Trend For personal use only Comic Court CBRC18250 - 10m at 3.0 g/t from 47m Recent drilling at Carbine has 29m at 2.4 g/t from 63m CBRC18249 - 4m at 2.9 g/t from 100m significantly improved our understanding of the geology and structural controls on mineralisation Phantom Hanging Wall Lode C
Slide 74: Northern Star Resources
For personal use only Northern Star Resources An Australian Mid Cap Global gold miner – Growing Against the Tide Contact Details: Luke Gleeson – Investor Relations +61 8 6188 2100 Email – info@nsrltd.com Website – www.nsrltd.com 74
Slide 75: Appendix A – Drill Results
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 APPENDIX A – DRILL RESULTS Table 1 - Ariel Significant Intersections ARIEL SIGNIFICANT INTERSECTIONS For personal use only End of Azimuth Downhole Downhole Downhole Au Est True Drill Hole Easting Northing Drill hole collar Dip hole (degrees, From To Intersection (g
Slide 76: EKJV Significant Intersections
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 EKJV SIGNIFICANT INTERSECTIONS Azimuth End of Downhole Downhole Downhole Au Est True Drill Hole Easting Northing Drill hole collar Dip (degrees, hole depth From To Intersection (gpt) Thickness # (Mine Grid) (Mine Grid) RL (MGA) (degrees) Mine Grid) (m) (m) (m) (m)
Slide 77: Appendix B – JORC Code 2012 Table 1 Reports
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 APPENDIX B – JORC CODE 2012 – TABLE 1 REPORTS Kanowna Belle (including Velvet) - Exploration Drill Results – February 2019 For personal use only JORC Code, 2012 Edition – Table 1 Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeedi
Slide 78: JORC Table 1 – Kanowna Belle
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) Geology logging is qualitative in nature with visual estimates made of mineralization percentages for core. For personal use only ph
Slide 79: JORC Table 1 – Kanowna Belle
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Documentation of primary data, data entry procedures, data verification, data storage All data are stored and validated within the site Acquire database. Data import into the database is controlled by For personal use only
Slide 80: JORC Table 1 – Kanowna Belle
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary A review of sampling techniques, assay results and data usage was conducted internally by the Companies’ For personal use only Principal Resource Geologist during 2015 with no material issues found. Section 2 Reporting of E
Slide 81: JORC Table 1 – Kanowna Belle
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Drill hole Information A summary of all information material to the understanding of the exploration results Summary information is presented in the accompanying table. For personal use only including a tabulation of the fo
Slide 82: Ariel – JORC Code Table 1 Report
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Ariel – February 2019 JORC Code, 2012 Edition – Table 1 Report For personal use only Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria JORC Code explanation Commentary Nature and quality of sampling (e.g. c
Slide 83: JORC Table 1 – Ariel
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary If core, whether cut or sawn and whether quarter, half or all core taken. All regolith diamond core is fully sampled down to a depth where the core has been deemed competent enough For personal use only to be sawn. All fres
Slide 84: JORC Table 1 – Ariel
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), A planned hole is pegged using a hand-held GPS by the geologist. For personal use only trenches, mine workings and other locations u
Slide 85: JORC Table 1 – Ariel
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary The security of the tenure held at the time of reporting along with any known No known impediments exist, and the tenement is in good standing For personal use only impediments to obtaining a license to operate in the area.
Slide 86: JORC Table 1 – Ariel
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Other exploration data, if meaningful and material, should be reported including (but All material exploration data has been reported within the report body, including gold assays performed on For personal use only not limi
Slide 87: JORC Table 1 – Millennium and Pope John
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) All logging is quantitative where possible and qualitative elsewhere. A photograph is taken of every core tray. For personal use onl
Slide 88: JORC Table 1 – Millennium and Pope John
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Upon hole completion, all Northern Star commissioned holes were Gyroscopic surveyed, taking survey readings For personal use only every 5m for improved spatial accuracy in a true north grid. Before this, final downhole surv
Slide 89: JORC Table 1 – Millennium and Pope John
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary (Centenary shale) and intermediate volcanoclastics (Spargoville Formation). The K2E structure is present along the For personal use only contact between the Victorious Basalt and Centenary shale. Drill hole Information A su
Slide 90: EKJV, Raleigh South, Pegasus Pode, Sir Walter – JORC Table 1
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 EKJV, Raleigh South, Pegasus Pode, Sir Walter – February 2019 JORC Code, 2012 Edition – Table 1 Report For personal use only Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.) Criteria JORC Code explanation Commentar
Slide 91: JORC Table 1 – EKJV
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Measures taken to ensure that the sampling is representative of the in-situ material Sample preparation was conducted at Bureau Veritas Kalgoorlie. For personal use only collected, including for instance results for field d
Slide 92: JORC Table 1 – EKJV
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Whether the data spacing and distribution is sufficient to establish the degree of The data spacing and distribution is considered sufficient to support the Resource and Reserve estimates. For personal use only geological a
Slide 93: JORC Table 1 – EKJV
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary K2-style mineralisation (Pegasus, Rubicon, Hornet) consists of narrow vein deposits hosted by shear zones located For personal use only along steeply-dipping overturned lithological contacts. The K2 structure is present alo
Slide 94: South Kalgoorlie Operations – JORC Table 1
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary density, groundwater, geotechnical and rock characteristics; potential deleterious or For personal use only contaminating substances. Further work The nature and scale of planned further work (e.g. tests for lateral extensi
Slide 95: JORC Table 1 – South Kalgoorlie
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary geology, veining, alteration, mineralisation and structure. Core has been logged in enough detail to allow for the For personal use only relevant mineral resource estimation techniques to be employed. Surface core is photog
Slide 96: JORC Table 1 – South Kalgoorlie
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Ongoing production data generally confirms the validity of prior sampling and assaying of the mined deposits to For personal use only within acceptable limits of accuracy. Verification of sampling and The verification of si
Slide 97: JORC Table 1 – South Kalgoorlie
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Section 2 Reporting of Exploration Results (Criteria listed in the preceding section also apply to this section.) For personal use only Criteria JORC Code explanation Commentary Mineral tenement and land Type, reference name/number, location and ownership including
Slide 98: JORC Table 1 – South Kalgoorlie
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary The HBJ orebodies form part of a gold mineralised system along the Boulder-Lefroy shear zone that is over 4 km long For personal use only and includes the Celebration, Mutooroo, HBJ and Golden Hope open pit and underground
Slide 99: Carbine – JORC Code Table 1 Report
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Diagrams clearly highlighting the areas of possible extensions, including the main Diagrams in the release. For personal use only geological interpretations and future drilling areas, provided this information is not commer
Slide 100: JORC Table 1 – Carbine
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet All RC samples are split using a rig-mounted cone splitter to collect a one metre sample 3-4 kg in size. Moisture For personal use only
Slide 101: JORC Table 1 – Carbine
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code explanation Commentary Orientation of data in Whether the orientation of sampling achieves unbiased sampling of possible structures All drilling is oriented as close as practical to perpendicular to the target structures. For personal use only re
Slide 102: JORC Table 1 – Carbine
ASX ANNOUNCEMENT – 5 FEBRUARY 2019 Criteria JORC Code Explanation Commentary Drill hole Information A summary of all information material to the understanding of the exploration results Refer to the various tables in the body of this report. For personal use only including a tabulation of the follow
Northern Star Resources — Technical Presentation (February 2019) on 6ix