Further Outstanding Drill Results from Havieron

 

11 June 2020

Dissemination of a Regulatory Announcement that contains inside information according to REGULATION (EU) No 596/2014 (MAR)

Greatland Gold plc

("Greatland" or "the Company")

 

Newcrest Reports Further Outstanding Drill Results from Havieron

 

Initial step out drilling intersects significant mineralisation 220m north west of previous intersections (82.1m @ 2.4 g/t Au, 0.08% Cu from 557.6m, HAD066)

 

Multiple exceptional results from infill drilling, including 109m @ 6.3g/t Au, 0.71% Cu from 668m (HAD059)

 

Greatland Gold plc (AIM:GGP), the precious and base metals exploration and development company, is pleased to provide an update on Newcrest's drilling campaign at Greatland's Havieron deposit in the Paterson region of Western Australia.

 

Greatland notes the release of an ASX announcement titled "Exploration Update" by Newcrest Mining Ltd ("Newcrest") earlier today.

 

Highlights

 

·      Exceptional drill results from Havieron further demonstrate improved continuity in the high-grade crescent sulphide zone and extend the strike length of mineralisation to 550 metres in the upper 200 metres of that zone.

·      Drilling has also provided further confirmation of the potential for a bulk tonnage target in the adjacent breccia hosted mineralisation.

·      Strike extension drilling 220m to the north-west of previous intersections has intersected significant mineralisation (82.1m @ 2.4 g/t Au and 0.08% Cu from 557.6m, HAD066), indicating the potential to expand the high-grade crescent zone.

 

Best New Results

 

·      HAD057W2: 58m @ 6.2g/t Au, 0.49% Cu from 588m, including

·      10.1m @ 20g/t Au, 0.79% Cu from 631.9m

·      HAD059: 109m @ 6.3g/t Au, 0.71% Cu from 668m, including

·      4m @ 78g/t Au, 1.2% Cu from 718m

·      HAD059W2: 166m @ 2.8g/t Au, 0.23% Cu from 794m, including

·      29m @ 12g/t Au, 0.19% Cu from 912m

·      HAD062: 132.2m @ 4.3g/t Au, 0.49% Cu from 557.8m, including

·      4.5m @ 66g/t Au, 2.6% Cu from 573.5m

·      HAD063: 101m @ 4.6g/t Au, 0.36% Cu from 636m, including

·      26.9m @ 16g/t Au, 1.0% Cu from 640.1m

·      HAD066 : 82.1m @ 2.4 g/t Au, 0.08% Cu from 557.6m, including

·      1.5m @ 86g/t Au, 0.87% Cu from 586.5m

·      HAD071: 45.3m @ 8.9g/t Au, 0.63% Cu from 588.7m, including

·      16.9m @ 20g/t Au, 1.2% Cu from 598.2m

 

Next Steps

 

·      Nine rigs operational as drilling activity continues towards the objective of delivering a maiden resource in the second half of calendar year 2020.

·      Step out drilling programme to test depth and lateral extent of mineralisation continues.

·      Newcrest planning approximately 80,000 metres of drilling at Havieron over the next 12 months.

·      Environmental and baseline studies progressing to support fast tracking of decline commencement at Havieron by end of calendar year 2020 or early 2021, subject to market and operating conditions and receipt of all necessary permits, consents and approvals.

·      Investigating potential to achieve commercial production within two to three years from commencement of decline.

 

Gervaise Heddle, Chief Executive Officer of Greatland Gold plc, commented: "We are delighted to report the eighth consecutive set of excellent results from Newcrest's drilling campaign at Havieron, including some of the best results to date.

 

"The crescent zone of high-grade mineralisation has been extended and its continuity once again improved by outstanding infill results. Meanwhile, the extension drilling programme has now commenced and early results are very promising, with step out drill hole (HAD066) intersecting significant mineralisation 220 metres north west of previous high-grade results, and mineralisation remaining open to the north west and at depth.

 

"These latest results, some of which are truly spectacular, sharpen our collective focus on the near-term objective of a maiden resource at Havieron, and further reinforce the potential to accelerate the timetable for commercial production."

 

Analytical results for HAD045W2, HAD045W3, HAD045W4, HAD053, HAD054, HAD054W1, HAD054W2, HAD054W3, HAD055, HAD055W2, HAD055W3, HAD056, HAD057, HAD057W1, HAD057W2*, HAD058, HAD059, HAD059W1, HAD059W2*, HAD060, HAD060W1, HAD061, HAD062, HAD063, HAD066*, HAD067, HAD071 have been received and are announced today. Selected significant intercepts are presented in Table 1.

 

Table 1 - Selected Significant Havieron Intercepts

 

Hole ID	From (m)	To (m)	Width (m)	Gold (g/t)	Copper (%)
HAD045W2	1023	1076	53	1.9	0.04
Including	1063	1074	11	8.8	0.06
HAD045W3	693	713	20	3.0	0.11
HAD045W3	830.4	895.4	65	2.0	0.05
HAD045W3	963	1019.9	56.9	2.3	0.10
HAD045W4	1026	1052.5	26.5	7.9	0.23
HAD054W2	1064	1261	197	1.7	0.30
Including	1243.1	1253.2	10.1	9.8	0.22
HAD054W3	911.5	1077.9	166.4	1.9	0.23
Including	980.8	996.6	15.8	6.8	0.56
HAD055	792.3	849.1	56.8	2.4	0.23
Including	836.8	847.1	10.3	7.9	0.18
HAD055W3	723.7	858.1	134.4	1.6	0.34
Including	761.3	775.5	14.2	11	0.36
HAD056	590	725	135	0.71	0.07
HAD056	766	839	73	0.96	0.09
Including	773	790	17	3.3	0.19
HAD057W1	693.2	717	23.8	4.3	0.45
HAD057W2*	588	646	58	6.2	0.49
Including	631.9	642	10.1	20	0.79
HAD057W2*	739.4	812.6	73.2	1.1	0.14
HAD058	550	577.1	27.1	4.6	0.21
HAD059	668	777	109	6.3	0.71
Including	718	722	4.0	78	1.2
HAD059W1	683	809.9	126.9	1.2	0.58
Including	776.9	807.4	30.5	3.0	1.8
HAD059W2*	794	960	166	2.8	0.23
Including	912	941	29	12	0.19
HAD060W1	784	865	81	1.1	0.52
Including	829.8	845	15.2	3.1	1.4
HAD061	526	543.4	17.4	15	2.0
HAD061	880.2	934.3	54.1	1.5	0.26
HAD062	557.8	690	132.2	4.3	0.49
Including	573.5	578	4.5	66	2.6
HAD063	636	737	101	4.6	0.36
Including	640.1	667	26.9	16	1.0
HAD066*	557.6	639.7	82.1	2.4	0.08
Including	586.5	588	1.5	86	0.87
HAD071	588.7	634	45.3	8.9	0.63
Including	598.2	615.1	16.9	20	1.2
HAD071	655.2	745	89.8	1.6	0.27
Including	598.2	615.1	16.9	20	1.2

 

* denotes partial results reported, with further assays pending to end of hole. Reporting Criteria are listed in Appendix II.

 

In addition to this release, a PDF version of this report, with supplementary information can be found at the Company's website: www.greatlandgold.com/media/jorc/ 

 

Further Information on Newcrest Drilling and Operations at Havieron

 

Exploration activities at Havieron are operated by Newcrest under a Farm-in Agreement with Greatland. The Havieron deposit is centred on a magnetic anomaly located 45km east of Telfer. Exploration drilling by Greatland during 2018 resulted in the discovery of significant gold and copper mineralisation under 400m of post mineral cover. Newcrest commenced drilling at Havieron during the June 2019 quarter.

 

Analytical results released today from the Havieron project are considered outstanding, and include 109m @ 6.3g/t Au and 0.71% Cu from 668m (HAD059), which represents one of the best results from the project to date. Significant results are presented in Table 1. A further 20,202m of new drilling is reported since the last drilling update (30 April 2020). Results reported today are from a further 27 holes including wedges.  

 

Drilling continued to deliver high-grade broad intersections confirming the significance of this discovery. Activities were focussed on infill drilling to support a maiden resource in the second half of calendar year 2020, as well as extension drilling to further understand the upside potential including lateral and depth extents. Results continue to demonstrate geological and grade continuity over the upper 600m vertical extent of the high-grade crescent sulphide zone. Geological controls on breccia hosted mineralisation indicate the potential for bulk extraction upside. Strike extension drilling 220m to the north-west of previous intersections has intersected significant mineralisation (HAD066) with the potential to expand the high-grade crescent zone. 

 

Exploration has focused on infill drilling (with nominal drill spacing of 50 - 100m laterally, and 100m vertically) to support a maiden resource in the second half of the calendar year 2020, and step out drilling to define the extents of the Havieron deposit. The results continue to demonstrate the geological and mineralisation continuity over the upper 600m of the high-grade "crescent" sulphide zone (previously referred to as the arcuate sulphide zone) below the unconformity. In addition, drilling has also provided further confirmation of the potential for a bulk tonnage target in the adjacent breccia hosted mineralisation.

     

The high-grade sulphide zone forms a crescent shape where the upper levels of the system (-170m to -400mRL) have an internal strike of 550m and an average width estimate of 20m. The mid level of the system (-400m to -600mRL) has an internal strike of 400m and an average width estimate of 20m.  In the lower levels (-600m to -800mRL) where drill tested, the crescent zone tapers in strike length to 200m and approximately 20m wide. The strike extent of high-grade mineralisation in the upper crescent zone has increased to 550m (from 400m).

 

Highest grade mineralisation is concentrated in the upper levels of the crescent zone where it is coincident with the best developed sulphide mineralisation. Breccia hosted mineralisation is formed enveloping and adjacent to the crescent high-grade sulphide zone, with recent drilling now defining a footprint of 550m and widths in excess of 100m. Drill data indicates better grades in the breccia zone are spatially related to proximity of the crescent zone. Deep drilling beyond the upper 600m window (-800mRL) also confirms the crescent zone extension is transitioning into a breccia dominant style of mineralisation.

 

Infill drilling continues to intersect high-grade mineralised breccia (for the third successive announcement) returning broad widths of mineralisation, for example 132.2m @ 4.3g/t Au and 0.49% Cu from 557.8m, including 54.4m @ 9.3g/t Au and 1.1% Cu from 557.8m (HAD062). Crescent zone and breccia mineralisation at the Havieron deposit remains open to the north west, has been observed to over 1,000m below post mineral cover, and remains open at depth.

 

The extents to the Havieron system are still to be defined, and encouragingly step out drilling 220m along strike to the north-west has intersected mineralisation in HAD066, returning a partial intercept of 82.1 m @ 2.4 g/t Au and 0.08% Cu from 557.6m with high-grade intervals (including 1.5 m @ 86 g/t Au and 0.87% Cu from 586.5m) consistent with the upper parts of the crescent sulphide zone. Results are pending for the remainder of this hole, though the current intercept reported is closed off. Further step out drill holes are underway.

 

Results to date support the continued investigation of both high-grade selective and bulk mining methods. The ongoing drilling programme is designed to expand the current footprint of the mineralisation targeting lateral and depth extents up to 1,000m below the unconformity where there is limited drilling.  System scale step out drilling to test depth and lateral extent of mineralisation will continue. Newcrest is planning approximately 80,000 metres of drilling at Havieron over the 12 months commencing 1 July 2020. Step out drilling will be supported by surface exploration activities including ground geophysics. A 30 line kilometre seismic survey has been commissioned to de-risk development activities and provide a better understanding of the regional geological and mine scale structural setting.

Studies have commenced including mining methods, hydrogeology, geotechnical, metallurgical, engineering and environment to support delivery of a mineral resource estimate in the second half of calendar year 2020.

 

Newcrest continues to investigate the potential to fast track an exploration decline at Havieron by the end of calendar year 2020 or early 2021, subject to market and operating conditions and receipt of all necessary permits, consents and approvals, along with the potential to achieve commercial production within two to three years from commencement of decline.

 

Newcrest are currently progressing a Concept Study, with targeted completion in the second half of calendar year 2020, investigating the potential to develop the deposit under both underground selective mining and bulk mining alternatives.

 

Newcrest has implemented measures to reduce and mitigate the risk of the COVID-19 pandemic to its project workforce and key stakeholders. Potential impacts of the Covid-19 pandemic on the drilling activity at Havieron are being actively managed and considered as part of the studies underway. There have been no COVID-19 cases at Havieron.

 

Stage 3 of the Farm-in continues. Currently, nine drill rigs are operational. A 100 person camp is on-site to support ongoing operations. In order to complete Stage 3 of the Farm-in Agreement, Newcrest must spend an additional US$25 million and deliver a Pre-Feasibility study for the Havieron Project.

 

Additional drill hole information is presented in Appendix I and tabulated drill hole intercepts are presented in Appendix II.

 

Deposit mineralisation is hosted by metasedimentary (meta-sandstones, meta-siltstones and meta-carbonate) and intrusive rocks. Gold and copper mineralisation is hosted in breccia, vein and massive sulphide replacement styles, typical of intrusion-related and skarn types of mineralisation. The main sulphide mineral assemblage contains well developed pyrrhotite-chalcopyrite and pyrite. Alteration assemblages associated with mineralisation are amphibole-carbonate-biotite-sericite-chlorite. Higher grade gold zones (+10g/t Au) are often associated with quartz/chalcopyrite-pyrite veining.

 

Background to Havieron and Farm-in Agreement with Newcrest

 

In March 2019, Greatland entered into a Farm-in Agreement with Newcrest Operations Limited, a wholly-owned subsidiary of Newcrest Mining Limited (ASX:NCM), to explore and develop Greatland's Havieron gold-copper discovery in the Paterson region of Western Australia. Newcrest has the right to earn up to a 70% interest in a 12-block area within E45/4701 that covers the Havieron target by spending up to US$65m. Newcrest may acquire an additional 5% interest at the end of the Farm-in period at fair market value.

 

Newcrest has completed Stage 2 of the Farm-in Agreement. In accordance with the terms of the Agreement, Newcrest has earned a 40% interest in the Havieron Project. In order to complete Stage 3 of the Farm-in, Newcrest must incur an additional US$25 million in expenditure and deliver a Pre-Feasibility study for the Havieron Project. If Newcrest successfully completes Stage 3, Newcrest will earn an additional 20% Farm-in Interest (cumulative 60% Farm-in interest).

 

During the Farm-In period, Newcrest will have a first right of refusal over the remainder of Greatland Gold's Paterson projects (Black Hills, Paterson Range East and remainder of the Havieron licence). The Farm-in Agreement includes tolling principles reflecting the intention of the parties that, subject to a successful exploration programme and feasibility study, the resulting joint venture ore will be processed at Telfer, located 45km west of Havieron.

 

A regional map showing the Havieron licence area with regional targets and adjacent landholdings can be found at: www.greatlandgold.com/paterson

 

 

Competent Person:

 

Information in this announcement that relates to exploration results has been extracted from the following announcements:

 

"Exploration Update", dated 11 June 2020

"Further Outstanding Drill Results at Havieron", dated 30 April 2020

"Newcrest Quarterly Exploration Report", dated 30 April 2020

"Newcrest Exploration and Guidance Update", dated 11 March 2020

"Further Outstanding Drill Results at Havieron", dated 11 March 2020

"Newcrest Quarterly Exploration Report", dated 30 January 2020

"Exploration Update - Drilling Returns High Grade Results at Havieron", dated 2 December 2019

"Newcrest Quarterly Exploration Report - September 2019", dated 24 October 2019

"Exploration Update - Havieron", dated 10 September 2019

"Newcrest Quarterly Exploration Report - June 2019", dated 25 July 2019

 

Information in this announcement, which has been taken from Newcrest Mining Limited's announcement "Exploration Update", dated 11 June 2020, has been reviewed and approved by Mr Mick Sawyer, a member of the Australian Institute of Geoscientists and a Registered Professional Geoscientist (R.P.Geo #10194), who has more than 15 years relevant industry experience. Mr Sawyer is Exploration Manager and a full-time employee of Greatland Pty Ltd, and holds employee options in Greatland Gold plc. Mr Sawyer, has sufficient experience relevant to the style of mineralisation and type of deposit under consideration, and to the activity which he is undertaking to qualify as a Competent Person as defined by the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code) and under the AIM Rules - Note for Mining and Oil & Gas Companies, which outline standards of disclosure for mineral projects. Mr Sawyer consents to the inclusion in this announcement of the matters based on this information in the form and context in which it appears. Mr Sawyer confirms that the Company is not aware of any new information or data that materially affects the information included in the relevant market announcements, and that the form and context in which the information has been presented has not been materially modified.

 

Additional information on the project can be found on the Company's website at www.greatlandgold.com/paterson/ 

 

In addition to this release, a PDF version of this report, with supplementary information can be found at the Company's website: www.greatlandgold.com/media/jorc 

 

 

Enquiries:

 

Greatland Gold PLC

Gervaise Heddle/Callum Baxter

Tel: +44 (0)20 3709 4900

Email:  [email protected]

www.greatlandgold.com

 

SPARK Advisory Partners Limited (Nominated Adviser)

Andrew Emmott/James Keeshan

Tel: +44 (0)20 3368 3550

 

SI Capital Limited (Joint Broker)

Nick Emerson/Alan Gunn

Tel:  +44 (0)14 8341 3500

 

Numis Securities Limited (Joint Broker)

John Prior/Paul Gillam/Alamgir Ahmed

Tel: +44 (0)20 7260 1000

 

Luther Pendragon (Media and Investor Relations)

Harry Chathli/Alexis Gore/Joe Quinlan

Tel: +44 (0)20 7618 9100

 

 

Notes for Editors:

 

Greatland Gold plc is a London Stock Exchange AIM-listed (AIM:GGP) natural resource exploration and development company with a current focus on precious and base metals. The Company has six main projects; four situated in Western Australia and two in Tasmania.

 

In March 2019, Greatland signed a Farm-in Agreement with Newcrest Operations Limited, a wholly-owned subsidiary of Newcrest Mining Limited (ASX:NCM), to explore and develop Greatland's Havieron gold-copper deposit in the Paterson region of Western Australia. Newcrest has the right to earn up to a 70% interest in a 12-block area within E45/4701 that covers the Havieron target by spending up to US$65 million.

 

Greatland is seeking to identify large mineral deposits in areas that have not been subject to extensive exploration previously. It is widely recognised that the next generation of large deposits will come from such under-explored areas and Greatland is applying advanced exploration techniques to investigate a number of carefully selected targets within its focused licence portfolio.

 

The Company is also actively investigating a range of new opportunities in precious and strategic metals and will update the market on new opportunities as and when appropriate.

 

 

APPENDIX I

Havieron Project (Greatland Gold plc farm-in agreement): JORC Table 1

Section 1 Sampling Techniques and Data

Criteria	Commentary
Sampling techniques	Diamond core samples are obtained from diamond drilling in Proterozoic basement lithologies. PQ-HQ and NQ diameter diamond core was drilled on a 6m run. Diamond core was cut using an automated core-cutter and half core sampled at 1 m intervals with breaks for major geological changes. Sampling intervals range from 0.2 - 1.0 m. Cover sequences were not sampled.
Drilling techniques	Permian Paterson Formation cover sequence was drilled using mud rotary drilling. Depths of cover typically observed to approximately 420 m vertically below surface. Steel casing was emplaced to secure the pre-collar. Diamond drilling was advanced from the base of the cover sequence with PQ3, HQ3 and NQ2 diameter coring configuration.  Diamond core from inclined drill holes are oriented on 3m and 6m runs using an electronic core orientation tool (Reflex ACTIII). At the end of each run, the bottom of hole position is marked by the driller, which is later transferred to the whole drill core run length with a bottom of hole reference line.
Drill sample recovery	Diamond core recovery is systematically recorded from the commencement of diamond coring to end of hole, by reconciling against driller's depth blocks in each core tray with data recorded in the database. Drillers depth blocks provided the depth, interval of core recovered, and interval of core drilled. Diamond core recoveries were typically 100%, with isolated zones of lower recovery. Cover sequence drilling by the mud-rotary drilling did not yield recoverable samples.
Logging	Geological logging recorded qualitative descriptions of lithology, alteration, mineralisation, veining, and structure (for all diamond core drilled - 16,862m), including orientation of key geological features. Geotechnical measurements were recorded including Rock Quality Designation (RQD) fracture frequency, solid core recovery and qualitative rock strength measurements. Magnetic susceptibility measurements were recorded every metre. The bulk density of selected drill core intervals was determined at site on whole core samples. All geological and geotechnical logging was conducted at Havieron site. Digital data logging was captured on diamond drill core intervals only, and all data validated and stored in an AcQuire database. All drill cores were photographed, prior to cutting and/or sampling the core.
Sub-sampling techniques and sample preparation	Sampling, sample preparation and quality control protocols are considered appropriate for the material being sampled. Diamond core was cut and sampled at the Telfer and Havieron core processing facility. Half core samples were collected in pre-numbered calico bags and grouped in plastic bags for dispatch to the laboratory. Sample weights typically varied from 0.5 to 4 kg. Sample sizes are considered appropriate for the style of mineralisation. Drill core samples were freighted by air and road to the laboratory. Sample preparation was conducted at Intertek Laboratory, Perth. Samples were dried at 105oC, and crushed to 95% passing 4.75 mm, and the split to obtain up to 3 kg sub-sample, which was pulverised (using LM5) to produce a pulped product with the minimum standard of 95% passing 106 μm. Duplicate samples were collected from crush and pulp samples at a rate of 1:20. Duplicate results show an acceptable level of variability for the material sampled and style of mineralisation. Periodic size checks (1:20) for crush and pulp samples and sample weights are provided by the laboratory and recorded in the Acquire database.
Quality of assay data and laboratory tests	Assaying of diamond drill core samples was conducted at Intertek, Perth. All samples were assayed for 48 elements using a 4-acid digestion followed by ICP-AES/ICP-MS determination (method 4A/MS907). Gold analyses were determined by 50 g fire assay with AAS finish (method FA50N/AA). Sampling and assaying quality control procedures consisted of inclusion of certified reference material (CRMs), coarse residue and pulp duplicates with each batch (at least 1:20). Assays of quality control samples were compared with reference samples in AcQuire database and verified as acceptable prior to use of data from analysed batches. Laboratory quality control data, including laboratory standards, blanks, duplicates, repeats and grind size results are captured in Acquire database and assessed for accuracy and precision for recent data. Extended quality control programs have commenced with pulp samples submitted to an umpire laboratory and combined with more extensive re-submission programs. Analysis of the available QC sample assay results indicates that an acceptable level of accuracy and precision has been achieved and the database contains no analytical data that has been numerically manipulated. The assaying techniques and quality control protocols used are considered appropriate for the data to be used for reporting exploration drilling results.
Verification of sampling and assaying	Sampling intervals defined by the Geologist are electronically assigned sample identification numbers prior to core cutting. Corresponding sample numbers matching pre-labelled calico bags are assigned to each interval. All sampling and assay information were stored in a secure Acquire database with restricted access. Electronically generated sample submission forms providing the sample identification number accompany each submission to the laboratory. Assay results from the laboratory with corresponding sample identification are loaded directly into the Acquire database. Assessment of reported significant assay intervals was verified by re-logging of diamond drill core intervals and assessment of high-resolution core photography. The verification of significant intersections has been completed by company personnel and the Competent Person. No adjustments are made to assay data, and no twinned holes have been completed. Drilling intersects mineralisation at various angles.
Location of data points	Drill collar locations were surveyed using a differential GPS with GNSS with a stated accuracy of +/- 0.5m for all drill holes reported. Drill rig alignment was attained using an electronic azimuth aligner. Downhole survey was collected at 6-12 m intervals in the cover sequence, and every 6 to 30 m in diamond drill core segments of the drill hole using single shot (Axis Mining Champ Gyro). The single shot surveys have been validated using continuous survey to surface (Axis Mining Champ) along with a selection of drillholes re-surveyed by an external survey contactor using a DeviGyro tool - confirming sufficient accuracy for downhole spatial recording. Topographic control is established from SRTM (1 second) topographic data and derived digital elevation model. The topography is generally low relief to flat, with an average elevation of 265 m, within dune corridors. All collar coordinates are provided in the Geocentric Datum of Australian (GDA94 Zone 51S).
Data spacing and distribution	The drill hole spacing ranges from 50 - 500 m in lateral extent within an area of 1.5 square kilometres. The current drill hole spacing does not provide sufficient information for the estimation of a Mineral Resource. Significant assay intercepts remain open. Further drilling is required to determine the extent of currently defined mineralisation. No sample compositing is applied to samples.
Orientation of data in relation to geological structure	Drill holes exploring the extents of the Havieron Mineral System intersect moderately dipping carbonate and siliclastic sedimentary facies, mineralised breccia and sub-vertical intrusive lithologies. Mineralised zones have been modelled to be steeping dipping and have an arcuate shape, which remains open to the north west, and at depth. Geological modelling has been interpreted from historic and Newcrest drill holes. Drilling direction has been oriented to intersect perpendicular to modelled positions of the high grade sulphide mineralisation zones; drill holes have been oriented on a NE and NW drill direction in order to intersect the mineralised zone at an intersection angle of greater than 40 degrees. The high grade arcuate crescent sulphide zone has an average thickness of 20 m and has been defined over a strike length of up to 550 m, and over 600 m in vertical extent below cover. Mineralised breccias are observed within a footprint of 550m and widths in excess of 100m, however the orientation and extents of the breccia bodies are yet to be fully defined by drilling and remain open at depth and to the north west.
Sample security	The security of samples is controlled by tracking samples from drill rig to database. Drill core was delivered from the drill rig to the Havieron core yard every shift. On completion of geological and geotechnical logging, core was transported by vehicle to Telfer core processing facility by Newcrest personnel. High resolution core photography and cutting of drill core was undertaken at the Havieron or Telfer core processing facility. Samples were freighted in sealed bags by air and road to the Laboratory, and in the custody of Newcrest representatives. Sample numbers are generated directly from the database. All samples are collected in pre-numbered calico bags. Verification of sample numbers and identification is conducted by the laboratory on receipt of samples, and sample receipt advise issued to Newcrest. Details of all sample movement are recorded in a database table. Dates, Hole ID sample ranges, and the analytical suite requested are recorded with the dispatch of samples to analytical services. Any discrepancies logged at the receipt of samples into the analytical services are validated.
Audits or reviews	Due to the limited duration of the program, no external audits or reviews have been undertaken. Internal verification and audit of Newcrest exploration procedures and databases are periodically undertaken.

 

 

Section 2 Reporting of Exploration Results

Criteria	Commentary
Mineral tenement and land tenure status	The Havieron Project is entirely contained within 12 sub-blocks of E45/4701, which is 100% owned by Greatland Pty Ltd. Newcrest has entered into an Exploration Farm-In (EFI) agreement with Greatland Pty Ltd and Greatland Gold Plc effective 12 March 2019, with Newcrest as Manager of the Havieron Project. The Stage 2 expenditure commitment of US$20m under the Farm-in agreement with Greatland Gold has been met. Newcrest has earned a 40% interest in the project and is in stage three of a four stage Farm-in, in which Newcrest has the right to earn up to 70% interest and acquire a further 5% at fair market value. Newcrest and WDLAC are parties to an Indigenous Land Use Agreement ("ILUA") which relates to the use of native title land for Newcrest's current operations at Telfer and its activities within a 60-km radius around Telfer, which includes its exploration activities at Havieron. The parties have agreed that the ILUA will apply to any future development activities of the Joint Venture Participants (Newcrest and Greatland) at Havieron. All obligations with respect to legislative requirements including minimum expenditure are maintained in good standing. The exploration tenement E45/4701 was first granted 17 July 2017 for 5 years, expiring 16 July 2022.
Exploration done by other parties	Newcrest Mining Limited completed six diamond core holes in the vicinity of the Havieron Project from 1991 to 2003. Greatland Gold completed drill targeting and drilling of 9 Reverse Circulation (RC) drill holes with diamond tails for a total of approximately 6,800 m in 2018. Results of drilling programs conducted by Greatland Gold have previously been reported on the Greatland Gold web site. Drilling has defined an intrusion-related mineral system with evidence of breccia and massive sulphide-hosted higher-grade gold-copper mineralisation.
Geology	The Havieron Project is located within the north-western exposure of the Palaeo-Proterozoic to Neoproterozoic Paterson Orogen (formerly Paterson Province), 45 km east of Telfer.  The Yeneena Supergroup hosts the Havieron prospect and consists of a 9 km thick sequence of marine sedimentary rocks, and is entirely overlain by approximately 420 m of Phanerozoic sediments of the Paterson Formation and Quaternary aeolian sediments. Gold and copper mineralisation at Havieron consist of breccia, vein and massive sulphide replacement gold and copper mineralisation typical of intrusion-related and skarn styles of mineralisation. Mineralisation at the prospect is hosted by metasedimentary rocks (meta-sandstones, meta-siltstones and meta-carbonate) and intrusive rocks of an undetermined age. The main mineral assemblage contains well developed pyrrhotite-chalcopyrite and pyrite sulphide mineral assemblages as breccia and vein infill, and massive sulphide lenses. The main mineralisation event is associated with amphibole-carbonate-biotite-sericite-chlorite wall rock alteration. Drilling has partially defined the extents of mineralisation which are observed over 550 m within an arcuate shaped mineralised zone, and to depths of up to -1,100mRL.
Drill hole Information	As provided.
Data aggregation methods	Significant assay intercepts are reported as (A) length-weighted averages exceeding 1.0 g/t Au greater than or equal to 10 m, with less than 5 m of consecutive internal dilution; and (B) length-weighted averages exceeding 0.2 g/t Au for greater than or equal to 20 m, with less than 10 m of consecutive internal dilution, and (C) and intervals of >30 gram metres (calculated as the weighted average of consecutive assayed interval multiplied by the Au grade in ppm exceeding a value 30). No top cuts are applied to intercept calculations.
Relationship between mineralisation widths and intercept lengths	Significant assay intervals reported represent apparent widths. Drilling is not always perpendicular to the dip of mineralisation and true widths are less than downhole widths. Estimates of true widths will only be possible when all results are received, and final geological interpretations have been completed.
Diagrams	As provided.
Balanced reporting	This is the eighth release of Exploration Results for this project made by Newcrest. The initial Newcrest release is dated the 25 July 2019. The second release is dated the 10 September 2019. The third release is dated the 24 October 2019. The fourth release is dated 2 December 2019. The fifth release is dated 30 January 2020. The sixth release is dated 11 March 2020 and the seventh release is dated 30 April 2020. Earlier reporting of exploration programs conducted by Newcrest and Greatland Gold have previously been reported. Exploration drilling programs are ongoing and further material results will be reported in subsequent Newcrest releases.
Other substantive exploration data	Nil.
Further work	Further work is planned to evaluate exploration opportunities that extend the known mineralisation. Initial drilling conducted by Newcrest has confirmed higher grade mineralisation, broadened mineralised extents defined by prior drilling and extended the depth of observed mineralisation of the Havieron prospect. The results of drilling to date indicate the limits of mineralisation have been closed off to the north east, south west and south east, and remain open to the north west, and at depth. Drilling programs at Havieron are ongoing with nine drill rigs currently in operation.

 

APPENDIX II

Drillhole Data

Havieron Prospect, Paterson, Western Australia

Reporting Criteria: Intercepts reported are Au >0.20ppm (0.2g/t Au) and minimum 20m downhole width with maximum consecutive internal dilution of 10m. Also highlighted are high grade intervals of Au >1.0ppm (1g/t Au) and minimum 10m downhole width with maximum consecutive internal dilution of 5m, and intervals of >30 gram metres (calculated as the weighted average of consecutive assayed interval multiplied by the Au grade in ppm exceeding a value 30) are tabled. Au grades are reported to two significant figures. Samples are from diamond core drilling which is PQ, HQ or NQ in diameter. Core is photographed and logged by the geology team before being cut. Half core PQ, HQ and NQ samples are prepared for assay and the remaining material is retained in the core farm for future reference. Each assay batch is submitted with duplicates and standards to monitor laboratory quality. Total depth (end of hole) rounded to 1 decimal place for reporting purposes. Hole IDs denoted with a * show partial results, with further significant assays to be reported in subsequent exploration updates.

Hole ID	Hole Type	Easting     (m)	Northing (m)	RL (m)	Total Depth (m)	Azimuth	Dip	From (m)	To (m)	Interval (m)	Au (ppm)	Cu (pct)	Cut off
HAD045W2	MR-DD	464383	7598090	257	1240	225	-55	674	701	27	0.25	0.04	0.2 g/t Au
								725	757.6	32.6	0.39	0.24	0.2 g/t Au
								879	948	69	0.89	0.06	0.2 g/t Au
								1023	1076	53	1.9	0.04	0.2 g/t Au
							Incl	1063	1074	11	8.8	0.06	1.0 g/t Au
							Incl	1070.5	1071.2	0.7	60	0.61	30 g.m. Au
								1095.1	1126	30.9	0.99	0.05	0.2 g/t Au
HAD045W3	MR-DD	464383	7598090	257	1023.3	225	-55	693	713	20	3.0	0.11	0.2 g/t Au
							Incl	700	700.7	0.7	78	0.64	30 g.m. Au
								775	798	23	0.23	0.02	0.2 g/t Au
								830.4	895.4	65	2.0	0.05	0.2 g/t Au
							Incl	843	843.4	0.4	157	0.79	30 g.m. Au
								913	949	36	0.44	0.02	0.2 g/t Au
								963	1019.9	56.9	2.3	0.10	0.2 g/t Au
							Incl	989	990	1	48	0.31	30 g.m. Au
HAD045W4	MR-DD	464383	7598090	257	1093.5	225	-55	666.1	778	111.9	0.28	0.02	0.2 g/t Au
								803	836	33	0.35	0.03	0.2 g/t Au
								883.1	1012.8	129.7	0.50	0.10	0.2 g/t Au
								1026	1052.5	26.5	7.9	0.23	0.2 g/t Au
							Incl	1042.5	1052.5	10	21	0.33	1.0 g/t Au
HAD053	MR-DD	463846	7598077	256	1362.2	132	-61	448	519	71	0.39	0.07	0.2 g/t Au
								561	589	28	0.15	0.12	0.2 g/t Au
								599.1	625	25.9	0.71	0.18	0.2 g/t Au
								636	692	56	0.30	0.10	0.2 g/t Au
								830.9	869.2	38.3	0.99	0.08	0.2 g/t Au
								1195	1291	96	0.15	0.39	0.2 g/t Au
HAD054	MR-DD	463840	7597971	256	745	135	-60	520	560	40	0.18	0.02	0.2 g/t Au
								570.9	601.1	30.2	0.20	0.02	0.2 g/t Au
								677	720	43	0.23	0.02	0.2 g/t Au
HAD054W1	MR-DD	463840	7597971	256	919.6	135	-60	717.7	777	59.3	0.32	0.02	0.2 g/t Au
HAD054W2	MR-DD	463840	7597971	256	1290.7	135	-60	656	676	20	0.32	0.08	0.2 g/t Au
								726.7	754.3	27.6	0.23	0.03	0.2 g/t Au
								879	900.1	21.1	2.6	0.07	0.2 g/t Au
								1064	1261	197	1.7	0.30	0.2 g/t Au
							Incl	1064.6	1077	12.4	2.4	0.51	1.0 g/t Au
							Incl	1150	1151	1	63	0.08	30 g.m. Au
							Incl	1169	1170.1	1.1	28	1.0	30 g.m. Au
							Incl	1243.1	1253.2	10.1	9.8	0.22	1.0 g/t Au
HAD054W3	MR-DD	463840	7597971	256	1143.4	135	-60	652	723	71	0.21	0.03	0.2 g/t Au
								911.5	1077.9	166.4	1.9	0.23	0.2 g/t Au
							Incl	932	961	29	4.1	0.22	1.0 g/t Au
							Incl	980.8	996.6	15.8	6.8	0.56	1.0 g/t Au
							Incl	987.4	988.2	0.8	77	0.44	30 g.m. Au
							Incl	1044.2	1064.7	20.5	2.3	0.44	1.0 g/t Au
HAD055	MR-DD	463714	7597340	263	1299.9	47	-56	709.6	777	67.4	0.87	0.25	0.2 g/t Au
							Incl	748.6	761	12.4	3.0	0.47	1.0 g/t Au
								792.3	849.1	56.8	2.4	0.23	0.2 g/t Au
							Incl	836.8	847.1	10.3	7.9	0.18	1.0 g/t Au
							Incl	843.1	844	0.9	49	0.15	30 g.m. Au
								893.5	942.4	48.9	1.1	0.03	0.2 g/t Au
								954.5	999	44.5	0.98	0.15	0.2 g/t Au
							Incl	955	971.3	16.3	1.3	0.16	1.0 g/t Au
HAD055W2	MR-DD	463714	7597340	263	877.4	47	-56	716	844.3	128.3	0.41	0.41	0.2 g/t Au
							Incl	737.91	749	11.09	0.58	0.45	1.0 g/t Au
							Incl	761.6	773	11.4	0.83	0.83	1.0 g/t Au
HAD055W3	MR-DD	463714	7597340	263	921.9	47	-56	723.7	858.1	134.4	1.6	0.34	0.2 g/t Au
							Incl	761.3	775.5	14.2	11	0.36	1.0 g/t Au
							Incl	764.6	765.8	1.2	106	0.30	30 g.m. Au
							Incl	827.9	848	20.1	1.1	0.87	1.0 g/t Au
								875	895	20	0.20	0.09	0.2 g/t Au
HAD056	MR-DD	463802	7597802	257	888.5	108	-56	590	725	135	0.71	0.07	0.2 g/t Au
							Incl	682.1	683.2	1.1	44	0.70	30 g.m. Au
								766	839	73	0.96	0.09	0.2 g/t Au
							Incl	773	790	17	3.3	0.19	1.0 g/t Au
HAD057	MR-DD	464459	7598026	257	1034.8	225	-55	607.4	703	95.6	0.46	0.12	0.2 g/t Au
							Incl	608	619.6	11.6	1.8	0.49	1.0 g/t Au
								829	895.3	66.3	0.75	0.20	0.2 g/t Au
								901.4	1008	106.6	0.87	0.24	0.2 g/t Au
							Incl	924.8	939.6	14.8	1.2	0.86	1.0 g/t Au
							Incl	955.2	972.8	17.6	1.0	0.21	1.0 g/t Au
HAD057W1	MR-DD	464459	7598026	257	1069.7	225	-55	615.1	673	57.9	0.32	0.06	0.2 g/t Au
								693.2	717	23.8	4.3	0.45	0.2 g/t Au
							Incl	694.3	707	12.7	7.6	0.76	1.0 g/t Au
							Incl	698	699	1	59	3.3	30 g.m. Au
								875.2	903	27.8	0.22	0.03	0.2 g/t Au
								928	997.8	69.8	0.66	0.06	0.2 g/t Au
							Incl	930	940	10	3.3	0.05	1.0 g/t Au
								1009	1038.4	29.4	0.94	0.10	0.2 g/t Au
HAD057W2*	MR-DD	464459	7598026	257	1159.1	225	-55	588	646	58	6.2	0.49	0.2 g/t Au
							Incl	606.4	626.5	20.1	7.2	0.53	1.0 g/t Au
							Incl	614.8	616	1.2	32	0.41	30 g.m. Au
							Incl	624.7	625.7	1	47	0.94	30 g.m. Au
							Incl	631.9	642	10.1	20	0.79	1.0 g/t Au
							Incl	633	635	2	79	1.7	30 g.m. Au
							Incl	634.0	635	1	95	1.71	30 g.m. Au
							Incl	639	640	1	39	0.61	30 g.m. Au
								659	680	21	1.2	0.04	0.2 g/t Au
								711.5	725.4	13.9	11	0.31	1.0 g/t Au
							Incl	715.1	716	0.9	49	1.0	30 g.m. Au
							Incl	723.1	724.2	1.1	86	0.78	30 g.m. Au
								739.4	812.6	73.2	1.1	0.14	0.2 g/t Au
								922.5	956	33.5	0.71	0.08	0.2 g/t Au
HAD058	MR-DD	463717	7597437	260	702.2	43	-50	550	577.1	27.1	4.6	0.21	0.2 g/t Au
							Incl	551.7	575.4	23.7	5.3	0.23	1.0 g/t Au
							Incl	572.6	573.2	0.6	69	0.53	30 g.m. Au
								617	702.2	85.2	0.70	0.05	0.2 g/t Au
HAD059	MR-DD	464484	7597999	257	1111	220	-68	668	777	109	6.3	0.71	0.2 g/t Au
							Incl	676.1	731.5	55.4	11	0.79	1.0 g/t Au
							Incl	692	693	1	62	0.10	30 g.m. Au
							Incl	702.8	704	1.2	45	0.39	30 g.m. Au
							Incl	718	722	4.0	78	1.2	30 g.m. Au
							Incl	744.2	765.4	21.2	3.3	1.0	1.0 g/t Au
								795	823	28	0.48	0.06	0.2 g/t Au
								846	877.6	31.6	0.65	0.13	0.2 g/t Au
HAD059W1	MR-DD	464484	7597999	257	928.7	220	-68	683	809.9	126.9	1.2	0.58	0.2 g/t Au
							Incl	776.9	807.4	30.5	3.0	1.8	1.0 g/t Au
								827.1	850	22.9	1.2	0.09	0.2 g/t Au
								873	899.7	26.7	0.37	0.09	0.2 g/t Au
								1019.2	1111	91.8	0.81	0.22	0.2 g/t Au
							Incl	1050.1	1074	23.9	1.2	0.10	1.0 g/t Au
HAD059W2*	MR-DD	464484	7597999	257	1306	220	-68	794	960	166	2.8	0.23	0.2 g/t Au
							Incl	882.2	905	22.8	2.3	0.46	1.0 g/t Au
							Incl	912	941	29	12	0.19	1.0 g/t Au
							Incl	926	926.9	0.9	65	0.28	30 g.m. Au
							Incl	940	941	1	105	0.36	30 g.m. Au
								1038	1094	56	0.72	0.2	0.2 g/t Au
							Incl	1079	1089	10	1.8	0.19	1.0 g/t Au
HAD060	MR-DD	464462	7597241	260	799	315	-59	717.5	776.3	58.8	0.79	0.63	0.2 g/t Au
							Incl	745.4	770.4	25	1.5	1.1	1.0 g/t Au
HAD060W1	MR-DD	464462	7597241	260	870.2	315	-59	784	865	81	1.1	0.52	0.2 g/t Au
							Incl	829.8	845	15.2	3.1	1.4	1.0 g/t Au
HAD061	MR-DD	464367	7598038	257	989.4	206	-61	526	543.4	17.4	15	2.0	1.0 g/t Au
							Incl	534	535.7	1.7	56	1.9	30 g.m. Au
							Incl	539.4	540.4	1	103	3.5	30 g.m. Au
								556	583.6	27.6	1.2	0.08	0.2 g/t Au
								615	670.6	55.6	0.15	0.01	0.2 g/t Au
								685	725	40	0.41	0.11	0.2 g/t Au
								880.2	934.3	54.1	1.5	0.26	0.2 g/t Au
							Incl	893.3	894.3	1	38	1.4	30 g.m. Au
HAD062	MR-DD	463851	7597430	260	702.6	42	-60	513	533.3	20.3	1.3	1.1	0.2 g/t Au
								557.8	690	132.2	4.3	0.49	0.2 g/t Au
							Incl	557.8	612.2	54.4	9.3	1.1	1.0 g/t Au
							Incl	573.5	578	4.5	66	2.6	30 g.m. Au
							Incl	584.9	586	1.1	26	1.4	30 g.m. Au
							Incl	601.0	601.6	0.6	52	0.73	30 g.m. Au
HAD063	MR-DD	463852	7597371	260	741.9	31	-63	636	737	101	4.6	0.36	0.2 g/t Au
							Incl	640.1	667	26.9	16	1.0	1.0 g/t Au
							Incl	644	644.6	0.6	160	0.62	30 g.m. Au
							Incl	647.2	649.3	2.1	78	2.7	30 g.m. Au
							Incl	684	696	12	2.3	0.40	1.0 g/t Au
HAD066*	MR-DD	463594	7597700	259	1339.2	44	-66	557.6	639.7	82.1	2.4	0.08	0.2 g/t Au
								564	564.2	0.2	59	0.02	30 g.m. Au
								586.5	588	1.5	86	0.87	30 g.m. Au
HAD067	MR-DD	464496	7597255	260	972.4	312	-61	904	938	34	0.49	0.41	0.2 g/t Au
HAD071	MR-DD	463880	7597401	260	772	29	-62	543.3	574	30.7	1.6	0.20	0.2 g/t Au
								588.7	634	45.3	8.9	0.63	0.2 g/t Au
		`					Incl	598.2	615.1	16.9	20	1.2	1.0 g/t Au
							Incl	599.9	601	1.1	29	0.91	30 g.m. Au
							Incl	603.4	604.1	0.7	87	2.2	30 g.m. Au
							Incl	606.3	606.6	0.3	276	1.7	30 g.m. Au
							Incl	609	609.6	0.6	57	2.3	30 g.m. Au
							Incl	623.2	634	10.8	5.5	0.27	1.0 g/t Au
							Incl	624	625	1	36	0.46	30 g.m. Au
								655.2	745	89.8	1.6	0.27	0.2 g/t Au

* denotes partial results reported, with further assays pending to end of hole.