Kalgoorlie Operations Welcome to Kundana Resources & Reserves - - PowerPoint PPT Presentation

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Kalgoorlie Operations Welcome to Kundana Resources & Reserves - - PowerPoint PPT Presentation

Kalgoorlie Operations Welcome to Kundana Resources & Reserves and Forward Looking Statements Mineral Resources and Ore Reserves The Mineral Resources and Ore Reserves information, and exploration results reported in accordance with the 2012


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Kalgoorlie Operations

Welcome to Kundana

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Resources & Reserves and Forward Looking Statements

Mineral Resources and Ore Reserves The Mineral Resources and Ore Reserves information, and exploration results reported in accordance with the 2012 edition of the Joint Ore Reserves Committee’s Australasian Code for Reporting of Mineral Resources and Ore Reserves ("JORC Code") in this presentation for all the Company’s projects is extracted from the reports entitled “Resource and Reserve Update” dated 1 August 2019 and “Kalgoorlie Operations Site Tour Presentation” dated 5 February 2019, available at www.nsrltd.com and www.asx.com. For the purposes of ASX Listing Rule 5.23, Northern Star confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. Northern Star confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement. The information in this announcement relating to the Pogo mine's mineral resources for the period before 16 October 2018 is reported in accordance with the requirements applying to foreign estimates in the ASX Listing Rules and, as such, is not reported in accordance with the JORC Code. The information is extracted from the ASX announcement entitled “Northern Star acquires Pogo Gold Mine in Alaska” dated 30 August 2018. The Pogo resources mentioned in this announcement for the period before 16 October 2018 are estimated as at 31 December 2017 and according to the Canadian NI 43-101 standards, but are not fully compliant with those standards. A cautionary statement in respect of such resources appears in the Company’s ASX announcement dated 30 August 2018. The information in this announcement relating to the Pogo mine's reserves for the period before 1 August 2019 is reported in accordance with the requirements applying to foreign estimates in the ASX Listing Rules and, as such, is not reported in accordance with the JORC Code. The information is extracted from the ASX announcement entitled “Northern Star acquires Pogo Gold Mine in Alaska” dated 30 August 2018. The Pogo reserves mentioned in this announcement for the period before 1 August 2019 are estimated as at 31 December 2017 and according to the Canadian NI 43-101 standards, but are not fully compliant with those standards. A cautionary statement in respect of such reserves appears in the Company’s ASX announcement dated 30 August 2018. Forward Looking Statements Northern Star Resources Limited has prepared this announcement based on information available to it. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in this announcement. To the maximum extent permitted by law, none of Northern Star Resources Limited, its directors, employees or agents, advisers, nor any other person accepts any liability, including, without limitation, any liability arising from fault or negligence on the part of any of them or any other person, for any loss arising from the use of this announcement or its contents or otherwise arising in connection with it. This announcement is not an offer, invitation, solicitation or other recommendation with respect to the subscription for, purchase or sale of any security, and neither this announcement nor anything in it shall form the basis of any contract or commitment whatsoever. This announcement may contain forward looking statements that are subject to risk factors associated with gold exploration, mining and production businesses. It is believed that the expectations reflected in these statements are reasonable but they may be affected by a variety of variables and changes in underlying assumptions which could cause actual results or trends to differ materially, including but not limited to price fluctuations, actual demand, currency fluctuations, drilling and production results, Resource and Reserve estimations, loss of market, industry competition, environmental risks, physical risks, legislative, fiscal and regulatory changes, economic and financial market conditions in various countries and regions, political risks, project delay or advancement, approvals and cost estimates.

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Northern Star Kalgoorlie Operations

▪ FY2020 continues organic production growth profile with guidance of 340,000oz – 380,000oz at AISC of A$1,260-A$1,370/oz ▪ 5 Operating UG Mines

Kanowna Belle

Millennium

HBJ

Raleigh (51% NST)

Rubicon-Hornet-Pegasus (RHP) (51% NST)

▪ 2 Processing Facilities – Total 3.2Mtpa

Kanowna Belle – 2Mtpa

Jubilee – 1.2Mtpa

Plus regional toll treating options

▪ Concentrated centre allows simplified management and leverage to synergies and gold price with organic growth options

Kalgoorlie - Boulder Coolgardie RHP UG Raleigh UG Millennium UG Kanowna Belle KB UG + 2.0Mpta Plant Paradigm ACRA Jubilee HBJ UG + 1.2Mtpa Plant

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Time Group 1 Group 2 13:35 - 14:00 Mining Presentation Underground 14:00 - 14:45 Geology Presentation 14:45 - 15:05 Core Yard Visit 15:05 - 15:30 Underground Mining Presentation 15:30 - 16:05 Geology Presentation 16:05 - 16:35 Core Yard Visit 16:35 - 16:45 Break & de-kit 16:45 Depart Site 17:15 Arrive Goldfields Arts Centre

Diggers & Dealers Site Visit - Agenda

▪ Purpose of the visit is to give exposure and insight in to the workings of NST ▪ NST business model is a point of difference compared to its peers ▪ The use of an “internal contractor”, NSMS, and Technical Teams delivering robust geology models and mine plans enables us to focus on productivity and reduce costs across the business

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Underground Locations

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Kalgoorlie Operations

Kundana Mining Overview

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Kundana Region - 100% NST & EKJV (51% NST)

Arctic / North Pit Millennium Centenary Strzelecki Pope John Xmas/Moonbeam Raleigh Raleigh South Pegasus/Pode Rubicon Hornet 100% NST / 51% NST

The Kundana mining area has been in operation for

  • ver 30 years

NST current operations stretch >8km along this exceptional geological corridor, with orebodies open at depth, laterally and along strike Ore bodies are typically narrow quartz vein style mineralisation (1m to 6m in width) The current operational mines include ▪ Kundana (100% NST) - Millennium, Pope John, Moonbeam ▪ East Kundana Joint Venture (51% NST) - Raleigh, RHP Current physicals (100% basis) ▪ >2Mtpa ore production ▪ >20kmpa of lateral development 8km

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Kundana (100% NST)

▪ Kundana region continues to grow production and offers operational flexibility ▪ Reserves of 0.6Moz and Resources of 1.4Moz ▪ Orebodies remain open at depth as well as along strike ▪ In FY2020, Moonbeam underground will be established as production centre, continuing growth along the Kundana trend ▪ Low capital intensity of A$24M to bring Moonbeam into production ▪ Kundana is achieving industry leading mining physicals as demonstrated by consistently developing over 500m per month with one jumbo

Millennium Centenary Pope John Moonbeam

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Narrow Vein Orebodies

K2 Lode – Millennium, Pope John, Moonbeam Strzelecki Lode – Strzelecki, Xmas

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Development Cycle - Optimising Geological Control

Face Sampling Completed for all ore headings, or where potential mineralisation is identified Samples are broken up into several ‘domains’ which are used in our grade models to predict future development and stope grades Requires ▪ Full ground support to standard ▪ Clean up after bolt-mesh to avoid trip hazards ▪ Face washed after bolt-mesh to avoid grade contamination 3D Photogrammetry Completed for all critical headings to

  • ptimise geological control and integrity

Sirovision a 3D image that the geologists use to map structures, rock types, veining etc. Requires ▪ Full face bogged out ▪ Cuts washed down completely ▪ Control points surveyed to ensure 3D image can be processed and interpreted in ‘real space’ Other Uses For Sirovision ▪ Dilution monitoring ▪ Geotechnical mapping and structural modelling ▪ Geological modelling ▪ Ore domaining prior to resource estimation ▪ Identify and extrapolate structures known to be responsible for high grade zones, and target areas for further drill testing

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Mining Method - Longhole Open Stoping

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Structure - Set up for Success

Our Underground Mining Services Division (NSMS) is implemented and operating at Kundana Best of both worlds ▪ Geology, mine design & scheduling structured to allow for

  • perational success

▪ Contractor-style productivity focus – get the most out of people & assets ▪ Fundamental alignment of business objectives for NST Equipment at Kundana ▪ 2 x Sandvik DD421 (Twin booms) ▪ 3 x Simba ME7-C (production drills) ▪ 3 x Sandvik 517 Loader - 17t bucket, semi-autonomous remote capable ▪ 4 x Sandvik TH551i Truck, 50t payload, automation ready

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Structure - Delivering Superior Productivities

Industry leading mining productivities delivered from “In House” Mining contractor model Jumbo development achieving 500m/jumbo/month; 67% above industry average of 300m/jumbo/month Production drilling achieving 10,000m/drill/month; 33% above industry average of 7,500m/drill/month High productivity is a key driver of project value

▪ Reduces fixed costs (reduced $/t) ▪ Accelerated access to ore = Higher NPV & FCF ▪ Increased annual production rate = Higher NPV & FCF

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Maximising Quality of Ore - Split Firing

Increases quality of ore by removing waste material from development heading as part of the mining cycle No impact to advance rates; Kundana achieving and maintaining industry leading physicals Direct savings realised by not hauling and processing waste Additional value creation by increasing mill head- grade and converting low grade to ore above cut-off

ORE MW

SF2 SF1

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Maximising Quality of Ore - Reducing Stope Dilution

Reduction in mining dilution through

▪ 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

Impact of reducing stope width by 0.5m

▪ Remove ~80kt of waste material per year from hauling and processing ▪ Increases stoping production rates – bring forward 80,000t of higher grade ▪ Opportunity +A$20M revenue

More Resource converts to Reserve and extends mine life

Sustainable dilution reduction

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NST Operational Capability Delivers Superior Returns

Development and production profile with NST performance at 500m per month per Jumbo Comparable development and production profile at 300m per month per Jumbo

Development and Production difference This scenario would carry the same fixed costs ▪ +4km Development ▪ +170kt of Ore (development and stoping)

Moonbeam established as an additional production centre in FY2020

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Kalgoorlie Operations

Kundana Geology Overview

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Kundana Regional Overview

▪ The Kundana mining complex was officially opened 10 December 1988 ▪ Northern Star has drilled over 150,000m (underground and surface) FY2019 across Kundana and EKJV ▪ Focus areas are the Falcon, Pode, Hera, K2 and all HW lodes associated with gold mineralisation ▪ FY2019 mining fronts have been the K2 Main Vein, Pode and Hera (HW lodes) and Strzelecki

  • n EKJV and 100% Kundana

▪ Recent underground exploration drilling has highlighted potential for significant hanging wall mineralisation and strike extension across the Kundana region

+8 km of Strike

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Kundana - Narrow Vein Main Lodes

K2 Strzelecki K2

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Kundana - Hanging Wall Lodes

Pode Hera

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N

PEGASUS RUBICON HORNET STARTREK

Kundana NST 100% EKJV NST 51% EVN

Resource Reserve KURRAWANG Tenement Boundary Prospect 1000M

N

Kundana - EKJV Overview (NST 51%)

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EKJV - RHP Drilling Snapshot

PEGASUS RUBICON HORNET N

PEGGC18304 0.8 m @ 38 g/t PEGRSD18152 0.3 m @ 73 g/t RUBGC18077 1.7 m @ 11 g/t RUBGC18065 3.3 m @ 7 g/t PEGRT18221 0.3 m @ 46 g/t PEGRT18220 0.4 m @ 29 g/t PEGRT18382 1.1 m @ 12 g/t PEGRT18141 2.6 m @ 35.0 g/t PEGRT18224 0.6 m @ 29.0 g/t PEGRT18162 1.5 m @ 27 g/t PEGRSD18151 3.3 m @ 7 g/t

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Pode - A Growing Success Story

50M PODE N

PEGGC18325 2.6 m @ 13 g/t PEGRT18387 3.2 m @ 6 g/t PEGGC18319 1.9 m @ 35 g/t

250m

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Falcon - Maiden Resource Is Just The Beginning

Just over 34,000m of Falcon exploration drilling in FY2019

Forecast A$2.8M (NST share) FY2020 Budget

Major focus to bring Falcon trend to Feasibility status

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Raleigh - Open to the South

RALEIGH RALEIGH STH SADLER N

RALRSD180680 0.7 m @ 136 g/t RALRT18305 0.7 m @ 23 g/t RALRT18301 0.7 m @ 20 g/t RDDD18003 0.8 m @ 57 g/t RALRT18302 0.2 m @ 36 g/t

SIR WALTER PROSPECT

500m

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Overview Kundana (NST 100%)

EKJV NST 51% KUNDANA NST 100% Tenement Boundary Reserve Resource Prospect

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Millennium/Pope John - Continuing Current Production

MILLGC18130 4.35m @ 9.2g/t MILLGC18135 5.8m @ 12.2g/t MILLRSD18045 1.31m @ 11.1g/t PJRSD18051 1.8m @ 16.2g/t

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Moonbeam - Next Production Centre

▪ Moonbeam will be accessed from the existing drill drive extending from Pope John and includes the Xmas trend on the Strzelecki lode ▪ To date all UG Moonbeam and Xmas drilling has been conducted from this location ▪ In FY2019, 10,000m of UG drilling was completed

Drill Platforms FY1819 Drill Platforms FY1920

N

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N

500m

Looking Forward - Xmas, Strzelecki & Moonbeam Extensions

MBDD18008 1.1m @ 69.0g/t CHDD18003 0.3m @ 177g/t CHDD18004 0.4m @ 146g/t

FY1920 Growth Areas

CHDD18020 0.32m @ 34.2g/t CHDD18013 0.81m @ 42.4g/t CHDD18021 1.79m @ 17.0g/t

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Looking Forward - Potential Outside Main Structures

▪ There has not been a significant amount of exploration outside of the Strzelecki and K2 Structures on the 100% ground ▪ West of the Strzelecki structure we have seen evidence of HW mineralisation ▪ Geological learnings from EKJV proves potential for growth and this area is a prospective exploration target for FY2020

1,530g/t historic drill hole intercept 75g/t historic drill hole intercept XMV HW 154g/t average

  • ver 4 drill

holes

Moonbeam Barkers Strzelecki Prospective HW Lode

Lucifer Fault Pope John Fault 500m

N

Looking East

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Regional Geology

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FY2019 Exploration Spend

SUMMARY

Group FY2019 exploration expenditure totalled A$66.3M

A$60M Group Exploration budget reallocated and accelerated post Pogo acquisition

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A$76M Global Investment in Future Growth

▪ A$76M exploration and drilling commitment for FY2020 is a record commitment ▪ Pogo will continue to be a major focus with outstanding in-mine and near mine opportunities ▪ Strong commitment to Jundee growth with major investment in-mine ▪ Regional exploration at South Kalgoorlie is generating considerable success across a 1,000km2 portfolio ▪ Efficient funds allocation 77% in-ground expenditure

KALGOORLIE

A$28M FY20 Spend

TANAMI

A$7M FY20 Spend

POGO

A$20M FY20 Spend

JUNDEE

A$19M FY20 Spend

Zodiac

Evaluation

Paradigm Ramone

Feasibility Production

Xmas Carbine Mt Martin Kundana EKJV KB Jundee HBJ Moonbeam Pope John

Kanowna

Regional

Jundee Regional

SKO Regional CTP JV Pilbara Regional Central Veins Liese 1, 2, 3 Burn Hill 4021 Paulsens

Australia North America

Exploration

Revelation Stone Boy Regional

Tanami

Falcon Armada Ziggy Marley Keri / Spring Theits Cholla Star Tam Cactus Chorizo West Knoll Liese 4 Liese 2, 3 ext South Pogo East Deeps North Zone X Veins Fun Zone

Development

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Kanowna Belle

Forecast A$10.5M spend In-Mine ▪ Focus on higher grade A-D Block HW (Troy-Sims) resource conversion ▪ Expand Velvet HW, Velvet Gap (Reed) ▪ Test for eastern extensions to Lowes (B-C Block) Near Mine ▪ Progress evaluation of large scale targets ▪ Nemesis, Red Hill, BLC systems

KANOWNA BELLE UNDERGOUND TARGET AREAS

Velvet A Block (Troy, Hilder, Sims) B Block (East) C Block (Sims) D Block (CX01, East)

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Kundana (100% NST)

Moonbeam Development

▪ A$2.5M forecast for incremental extension targets ▪ Pope John, Xmas, Moonbeam systems at depth ▪ Extending Strzelecki trend south

MOONBEAM XMAS POPE JOHN STRZELECKI Pope John Fault Lucifer Fault.

KUNDANA UNDERGROUND TARGETS

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EKJV (NST 51%)

Falcon is the Focus

▪ Forecast A$2.8M (NST share) budget ▪ Major focus to bring Falcon trend to

feasibility status

▪ K2

HW extensions northward from Pegasus

▪ Extensional drilling into RHP hanging wall

positions (Hera)

FALCON DISCOVERY N

Drake Pegasus Rubicon Hornet Falcon

EKJV MINE TARGETS

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South Kalgoorlie

In-Mine

Forecast A$2.2M spend on HBJ extensions, early success evident from NOZ extensions to extend mine life

HBJ UNDERGROUND MINE LONG SECTION

NOZ Extensions SOZ Extensions Jubilee Extensions

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▪ Over 1,000km2 of

exploration and freehold tenure

▪ Extensive production history ▪ Contains strike continuation

  • f Boulder-Lefroy fault

system – key to the Golden Mile

▪ Plus all the major structural

corridors of the Coolgardie- Kalgoorlie terrane - host to ~120Mozs Structural Corridors

SKO - Exploring in the heart of the Goldfields

Samphire Boorara Loc 41

HBJ

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Current Exploration Activity - Carbine & Carnage

Kundana

Thunderstruck

Regional drilling of the Kundana eqivalent stratigraphy proximal to the Zuleika Shear Zone

Carbine Carnage

Carbine Trend

Targeted drilling outlining parallel trends in an emerging camp

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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 Page Links click here