Criteria

JORC Code explanation

Commentary

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.

• Air core (AC) drilling drilled to bedrock refusal or limits of drill capabilities. Chip tray samples of the drillholes were examined and those samples being from non-transported material were selected for assay

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

• All samples were sourced from representative chip tray samples in storage

• Aspects of the determination of mineralisation that are Material to the Public Report.

• The extent or presence of mineralisation is unknown at this stage. Samples have been assayed as geochemical indicators to potential only.

• 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.

• AC samples pulverized to 75 µm and all samples analyzed by Aqua Regia 52 element ICP-OES & MS with 25g Fire Assay/AAS finish for samples with a greater than 500ppb value.

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).

• AC drilling collected using a face sampling aircore bit

Drill sample recovery

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

• N/A - drilling was undertaken by Iluka for HMS exploration

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

• N/A - drilling was undertaken by Iluka for HMS exploration

• 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.

• N/A - drilling was undertaken by Iluka for HMS exploration

Logging

• Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate

• Holes logged to a minimum level of detail (basic geological

Criteria

JORC Code explanation

Commentary

Mineral Resource estimation, mining studies and metallurgical studies.

lithologies) based on material available in chip tray

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

• Qualitative: lithology

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

• Only chip tray intervals logged

Sub-

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

• N/A

sampling

techniques

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

• N/A. Samples were taken from chip trays.

and sample

preparation

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

• The maximum sample possible was taken from chip trays for assay. In most cases this amounts to approximately 25-50g of material

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

• CRM standards inserted in the sample sequence

• 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.

• No field duplicates were performed

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

• Sample size is not appropriate for quantitative assay. However, material is being used only as a first pass geochemical tool

Quality of

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

• Aqua Regia digestion 1g / ICP-OES &MS for 52 element package

assay data

• Fire assay (25g), total technique, appropriate for gold

and

• AAS determination, appropriate for gold.

laboratory

tests

• 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.

• Handheld XRF measurements were also taken on selected intervals.

• 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.

• Certified reference material standards, 1 in 50 samples, 0.34 to 9.25 ppm.

• Lab: Random pulp duplicates are taken on average 1 in every 10 samples

Verification

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

• Sampling was periodically inspected by Senior Doray Geological staff

of sampling

and

• The use of twinned holes.

• No twinned holes utilised

assaying

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

• Data stored in Datashed database on internal company server, logging performed on LogChief and synchronised to Datashed

Criteria

JORC Code explanation

Commentary

database, data validated by database administrator, import validate protocols in place. Visual validation in MapInfo by company geologists.

• Discuss any adjustment to assay data.

• No adjustments made to 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.

• Collars: surveyed with handheld GPS.

• Downhole: surveyed with downhole orientation tool.

• Specification of the grid system used.

• MGA94 - Zone 53

• Quality and adequacy of topographic control.

• Topography (RL) is estimated based on nominal regional data. Topography is rolling sand dunes but margin of error is considered low.

Data spacing and distribution

• Data spacing for reporting of Exploration Results.

• Drill spacing is random based on scout drill lines used for HMS exploration

• 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.

• No

• Whether sample compositing has been applied.

• No compositing

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.

• Unknown

• 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.

• Not Applicable

Sample security

• The measures taken to ensure sample security.

• All samples are bagged in a tied numbered calico bag, grouped into larger polyweave bags and cable tied. Polyweave bags are placed into larger bulky bags with a sample submission sheet, tied shut and stored in cargo crates. Consignment note and delivery address details are written on the side of the bag and delivered to Intertek Genalysis Laboratory in Adelaide, SA accredited for compliance with ISO 9001/14001, OHSAS 18001/AS4801 Transported through McEvoy Transport out of Ceduna, SA

Audits or reviews

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

• Performance meetings held between a DRM and an Intertek Genalysis representative are conducted monthly. QAQC data are reviewed with each assay batch returned, and on regular monthly intervals (trend analysis).

Criteria

JORC Code explanation

Commentary

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.

• Doray Minerals Ltd has the right to earn up to 80% interest in gold resources on the tenements held by Iluka Resources Limited and Iluka (Eucla Basin) Pty Ltd the subject of the Farm-in Agreement through the expenditure of $7M over a 6 year period.

• All tenements are owned by Iluka Resources Limited or Iluka (Eucla Basin) Pty Ltd

Exploration done by other parties

• Acknowledgment and appraisal of exploration by other parties.

• No previous exploration for precious metals. Exploration has been confined to HMS.

Geology

• Deposit type, geological setting and style of mineralisation.

• Underlying geology is undetermined but regional geology suggests felsic intrusives, metagabbros, a granitoid suite and pegmatites with metamorphism indicating multiple events along with thermal reworking and transpressional reactivation fault zone.

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.

• No significant intersections - only geochemical sampling

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.

• No data aggregation methods applied.

Relationship

• These relationships are particularly important in the reporting of

• No downhole inetrcepts being reported, only relative geochemical

Criteria

JORC Code explanation

Commentary

between mineralisatio n widths and intercept lengths

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').

responses.

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.

• Refer to plans attached

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.

• All geochem samples are displayed from a constant sampling medium.

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.

• All meaningful and material data is reported

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.

• Regularised aircore drilling will be performed over the target areas in order of priority. This drilling will be wide spaced and used as a first pass tool to delineate and target zones of mineralisation along favourable structural or geological domains.