Exploration Update - Black Hills Drill Results

Hole ID

Prospect

Northing

Easting

RL

Depth

Azimuth

Dip

Assay

SRRC001

Saddle Reefs

7610279

444938

268

304

55

-60

Complete

SRRC002

Saddle Reefs

7610348

445049

263

298

55

-60

Complete

SRRC003

Saddle Reefs

7610487

445237

261

298

235

-60

Complete

SRRC004

Saddle Reefs

7610550

445338

269

350

235

-75

Complete

SRRC005

Saddle Reefs

7609821

445772

271

298

235

-60

Complete

SRRC006

Saddle Reefs

7609622

445473

262

500

55

-60

Complete

SRRC007

Saddle Reefs

7609521

445331

259

298

55

-60

Complete

SRRC008

Saddle Reefs

7609402

445184

255

298

55

-60

Complete

SRRC009

Saddle Reefs

7609292

445035

255

298

55

-60

Complete

SRRC010

Saddle Reefs

7610543

445131

260

154

235

-60

Complete

SRRC011

Saddle Reefs

7610561

445186

260

154

235

-60

Complete

SRRC012

Saddle Reefs

7610486

445067

260

154

235

-60

Complete

SRRC013

Saddle Reefs

7610449

445093

264

298

235

-60

Complete

SRRC014

Saddle Reefs West

7609417

444090

249

262

55

-60

Complete

SRRC015

Saddle Reefs West

7609535

444229

248

358

55

-60

Pending

SRRC016

Saddle Reefs West

7609641

444381

249

358

55

-60

Pending

SRRC017

Saddle Reefs

7608546

445646

249

300

55

-60

Pending

SRRC018

Saddle Reefs

7608635

445870

253

300

55

-60

Pending

SRRC019

Eastern

7609373

446778

249

287

235

-60

Pending

SRRC020

Eastern

7609695

446239

270

279

255

-60

Pending

Hole ID

From

To

Interval

Au (g/t)

Cu ppm

SRRC001

28

40

12

0.15

SRRC002

56

60

4

0.17

SRRC002

140

148

8

0.18

SRRC003

60

68

8

0.27

SRRC003*

296

298

2

0.43

SRRC004

4

20

16

0.13

SRRC005

156

160

4

0.12

SRRC006

48

52

4

0.14

SRRC006

188

200

12

0.22

SRRC006

276

280

4

0.17

SRRC007

104

140

36

0.53

2107

incl

104

108

4

1.65

116

120

4

0.99

8540

120

124

4

0.69

4372

SRRC007

248

252

4

0.18

SRRC008

256

284

28

0.24

616

SRRC009

268

288

20

0.10

SRRC010

0

36

36

0.32

SRRC010

72

80

8

0.18

SRRC010

92

96

4

0.13

SRRC011

32

44

12

0.57

SRRC012

52

56

4

0.20

SRRC012

68

124

56

0.56

incl

68

72

4

1.56

incl

76

80

4

2.52

incl

104

108

4

1.66

SRRC013

16

40

24

0.17

SRRC013

76

88

12

0.10

799

SRRC013

116

136

20

0.31

SRRC014

136

140

4

0.17

Criteria

Explanation

Sampling techniques

• Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

• Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

• Aspects of the determination of mineralisation that are Material to the Public Report. In cases where 'industry standard' work has been done this would be relatively simple (eg 'reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay'). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

2019 Reverse Circulation Drilling (RC)

·; Prospects have been drilled by 20 RC drill holes, totalling 5,846m, with an average hole depth of ~290m.

·; Assays have been received for fourteen 2019 RC drill holes.

·; RC drill holes were drilled at three separate areas testing geophysical and geochemical targets.

·; Locations and orientation of 2019 drill holes for this release are tabulated in the appendices of the report.

RC Sampling

·; RC sampling was carried out using Greatland internal protocols and QAQC procedures.

·; One metre samples were collected from the cyclone into a plastic bucket and laid out generally in rows of 50.

·; RC samples were composited to 4m lengths via 'spear' sampling the individual 1m intervals. Samples were then taken to the laboratory and pulverised.

Drilling techniques

• Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).

RC Drilling

·; RC drilling was undertaken using a truck mounted KWL700. Depth capacity of the drill rig is approximately 600m. The drill rig utilised an onboard compressor (1200 cfm, 350/500 psi) and auxiliary booster (1250 cfm, 850 psi).

·; Drill holes were collared using a 7 ½ inch RC bit to ~25-35m, followed by 5-5/8 inch RC bit to end of hole.

Drill sample recovery

• Method of recording and assessing core and chip sample recoveries and results assessed.

• Measures taken to maximise sample recovery and ensure representative nature of the samples.

• Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.

RC Sampling

·; RC sample recovery and quality was recorded via visual estimation of sample volume and the condition of drill spoils.

·; Recovery ranges from 90-100%, with only occasional recoveries of less than 70%. Sample recovery was maximized by maintaining dry samples (dry drilling conditions) as much as possible.

·; Due to consistently high recoveries, no relationship between grade and recovery is evident.

Logging

• Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

• Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography.

• The total length and percentage of the relevant intersections logged.

·; All RC drill samples were geologically logged for lithology, mineralogy, alteration, veining and sulphide occurrences. This logging includes both qualitative and quantitative components.

·; Logging is recorded directly into a laptop computer using 'LogChief' - geological logging software. This software has 'look-up tables' that do not allow for invalid entries. Additional validation is then carried out when data is transferred to Greatlands database managers.

·; All samples are analysed in the field using a pXRF (Olympus Vanta M-series) for the purpose of geochemical interpretation.

Sub-sampling techniques and sample preparation

• If core, whether cut or sawn and whether quarter, half or all core taken.

• If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.

• For all sample types, the nature, quality and appropriateness of the sample preparation technique.

• Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.

• Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.

• Whether sample sizes are appropriate to the grain size of the material being sampled.

·; One metre samples were collected from the cyclone into a plastic bucket and laid out generally in rows of 50.

·; RC samples were composited to 4m lengths via 'spear' sampling the individual 1m intervals.

·; RC sample preparation was completed at Intertek Laboratory in Perth using industry standard procedures (dry, crush and pulverise for 85% at 75µm). This sample is then split into sub-samples for analysis.

·; The sample sizes are considered appropriate for the style of mineralisation encountered in the region.

Quality of assay data and laboratory tests

• The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.

• For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc.

• Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.

Analytical Techniques

·; All samples were dried, crushed and pulverised to produce suitable sub-samples for Au analysis (via Fire Assay), and Multi-Element analysis (via four-acid digestion ICP-MS).

·; Au analysis - 25g Fire Assay/ICP-OES (detection limit of 0.005ppm).

·; Multi-Element analysis - four acid digestion ICP-MS (for Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, In, K, La, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, TI, U, V, W, Y, Zn, Zr).

·; No geophysical tools were used for any element concentrations in this report.

·; All samples are analysed in the field using a pXRF (Olympus Vanta M-series) for the purpose of geochemical interpretation. This data is for internal company use only.

·; Quality Control procedures in the field involve the use of certified reference material (CRM's) for assay standards and blanks. CRM's are inserted 1 in every 25 samples. Quality control results were considered acceptable.

·; In addition to Greatland supplied CRM's, Intertek Laboratory includes CRM's in each sample batch they receive for analysis.

Verification of sampling and assaying

• The verification of significant intersections by either independent or alternative company personnel.

• The use of twinned holes.

• Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.

• Discuss any adjustment to assay data.

·; Significant intersections have been verified by company personnel.

·; No twin holes have been drilled.

·; Logging is recorded directly into a laptop computer using 'LogChief' - geological logging software. This software has 'look-up tables' that do not allow for invalid entries. Additional validation is then carried out when data is transferred to Greatlands database managers.

·; No adjustments have been made to any assay data.

Location of data points

• Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.

• Specification of the grid system used.

• Quality and adequacy of topographic control.

Location information

·; Drill hole collar locations were surveyed using a handheld Garmin 64ST GPS (accuracy of ± 5m).

·; All coordinates are in GDA94 Zone51.

·; RL is measured using a handheld GPS.

·; Inclined RC drill holes are checked for drill rig set-up azimuth using a Suunto Sighting compass.

·; Inclination of drill holes is set by the driller using a clinometer on the mast of the drill rig.

·; Down hole surveys were conducted at 50m intervals using a 'north seeking gyro' instrument.

Data spacing and distribution

• Data spacing for reporting of Exploration Results.

• Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.

• Whether sample compositing has been applied.

·; Three areas were drilled for the 2019 RC program. At these three areas, drill hole spacing is approximately 140m. Drill hole orientation is perpendicular to the strike direction of the local geology.

·; Sample compositing has been applied. In general, 4m composites have been used for the 2019 drill program.

·; Data spacing is not sufficient for the reporting of Mineral Resources.

·; A large amount of historic shallow surface exploration has been conducted at the Black Hills project. Most historic holes are shallow (

Orientation of data in relation to geological structure

• Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type.

• If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.

·; Drill holes were oriented perpendicular to strike of the local geology.

·; No relationship is known between key mineralizing structures and the orientation of drilling.

Sample security

• The measures taken to ensure sample security.

·; Sample security is managed by Greatland internal protocols. Samples are taken from site by Greatland or their representatives to Port Hedland, and transported to the laboratory in Perth.

Audits or reviews

• The results of any audits or reviews of sampling techniques and data.

·; No audits have been completed.

·; No reviews are considered required as the project is in early phase of exploration.

Criteria

Explanation

Mineral tenement and land tenure status

• Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.

• The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.

·; The Black Hills Project is located wholly within the following Exploration Licence:

·; E45/4512 (granted)

·; Greatland Pty Ltd holds a 100% interest in E45/4512

·; Newcrest Operations Limited holds right of first refusal as per Farm-in Agreement dated 12th March 2019.

·; The tenements are in 'good standing' with the WA - DMIRS.

·; No known impediments exist, including a licence to operate in the area.

Exploration done by other parties

• Acknowledgment and appraisal of exploration by other parties.

·; Exploration in the region of the Paterson Range East Project has involved the following companies:

·; CBM (1974‐1989)

·; Peko (‐ 1978)

·; Marathon Petroleum (‐1979)

·; Western Mining Corporation (1980‐1981)

·; Duval (1984)

·; Malateur (1985‐1986)

·; Newmont (1986-1996)

·; Freeport (1987‐1988)

·; Newcrest (1995‐1997)

·; Normandy Exploration (1998‐1999)

·; Croesus Mining (2000‐2001)

·; Opus Exploration (2001‐2002)

·; Range River Gold (2003‐2005)

·; Newcrest (2009‐2015)

Geology

• Deposit type, geological setting and style of mineralisation.

·; Paterson Province Geological Setting:

·; Proterozoic meta-sedimentary rocks. Mineralisation styles include: Stratigraphic/contact controlled gold, vein and reef style gold/copper stockwork.

·; At Saddle Reefs, mineralisation is hosted in fine grained sandstones with minor interbedded siltstones. In other parts of the project area, mineralisation is associated with fine grained quartzites.

Drill hole Information

• A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:

• easting and northing of the drill hole collar

• elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar

• dip and azimuth of the hole

• down hole length and interception depth

• hole length.

• If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.

·; Reports prepared by Greatland Pty Ltd on the Black Hills project are available to view on: www.greatlandgold.com

·; Other information regarding the exploration area can be found in historic exploration reports, available in previous Western Australia DMIRS reports.

·; A table with drill hole information accompanies the report.

Data aggregation methods

• In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.

• Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.

• The assumptions used for any reporting of metal equivalent values should be clearly stated.

• Aggregated intervals have been length weighted.

• Reporting Criteria: Intercepts reported are greater than or equal 4m, greater than or equal to 0.1 ppm Au, with maximum consecutive internal dilution of 8m. Au grades are reported to two significant figures. Copper shown where it is more than 500ppm in a gold intercept.

• One intersection is reported as; greater than or equal 2m, greater than or equal to 0.1 ppm Au - zero internal dilution (End of hole 298m).

• Higher grade gold intervals within broader zones of lower grade intervals are reported as included intervals.

Relationship between mineralisation widths and intercept lengths

• These relationships are particularly important in the reporting of Exploration Results.

• If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.

• If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg 'down hole length, true width not known').

• The geometry of mineralisation with respect to drill hole orientation is not known.

• Intervals are down hole lengths, true widths not known.

Diagrams

• Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.

• Appropriate diagrams are available with this report.

Balanced reporting

• Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.

• The company believes this announcement is a balanced report, and that all material information has been reported.

Other substantive exploration data

• Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.

• Previous exploration results included in this announcement can be found on the company website: www.greatlandgold.com

Further work

• The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).

• Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.

• Further results are awaited for the remaining 6 holes. Single metre samples will then be analysed.

• Planned further work includes geological and geochemical investigation of drill results with the aim of developing a 3D geological model of the project.