Aura Egy Regulatory News (AURA)

Sampling techniques

·; Nature and quality of sampling (e.g. 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 (e.g. '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 (e.g. submarine nodules) may warrant disclosure of detailed information.

·; Samples referred to are drill chips collected during RC and air-core drilling. Samples were collected in line with industry standard practice and were collected over 1 metre of drilling intervals

·; Drill chip samples collected at the drilling rig were riffle split on site to produce a c. 2kg sample for assay.

·; Samples collected in the weathering zone, i.e. approx. less than 50m deep, were in most cases combined by riffle splitting to produce composites over 4m intervals for assay.

Drilling techniques

·; Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. 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).

·; Drilling consisted initially of vertical air-core drilling conducted by Australian contractor Wallis Drilling, using an NQ size bit on lines approx. 2 km apart or in areas deemed to have favourable geological structure. Where elevated gold values (greater than 40 ppb) were obtained an inclined RC hole was drilled beneath the elevated gold sample. RC drilling was conducted by South African drilling contractor Hall Core Drilling using 4½ inch hammer bit.

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.

·; All drilling was supervised by qualified geologists. All RC drill samples were weighed on site to determine sample recovery and these were recorded. Sample recoveries, with the exception of the first few metres downhole have acceptable recovery (>70%) for the purposes of this drilling.

·; No relationship between sample recovery and grade was observed. It is unknown whether bias arose from preferential loss of fines, but is considered unlikely to be of a magnitude material to this type of early stage exploration drilling.

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 drill chip samples were geologically logged by the site geologist after wet sieving a sample from each metre interval.

·; This was recorded in the company's logging template along with other relevant information: hole number, sample depth, sample number

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.

·; Samples (except where very wet) were riffle split on site to produce a sample for assay.

·; In most cases samples were split dry, but samples that were very wet were coned & quartered on site to produce the assay sample.

·; The sampling procedures are considered to be industry standard for early stage exploration, acceptable for indicating the presence of mineralisation and an indication of grade.

·; For aircore drilling, 1 in every 20 samples submitted for assay was a field duplicate. For RC drilling, 1 in every 25 samples was a field duplicate and 1 in every 40 samples was a CRM (certified Reference Material) assay standard provided by AMIS.

·; The plate spacing in riffle splitters employed (c. 1.5 inch) conforms with Gy's sampling theory as appropriate for the size of the drill chips being split.

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 (i.e. lack of bias) and precision have been established.

·; All samples were assayed by SGS technique FAE505 for gold.

FAE505 involved:Fusion of a 50 g sample with a litharge based flux, cupel, dissolve prill in aqua regia, extracted in DIBK and gold determined by flame AAS. Detection Limit 0.01ppm. This is considered a total extraction technique for gold.

ICM 40B involves:Semi quantitative ICP-OES + ICP-MS scan, multi acid digestion

·; Quality control procedures employed by SGS are:

1 Reagent Blank in 84

1 Preparation Blank (prep process blank) in 84

2 Weighed replicates in 84

2 Preparation Duplicate (re split) in 84

4 SRM's (Standard Reference Material) in 84

Samples that were re-analysed from the same pulp reported acceptable agreement with original assay.

·; Quality control procedures employed by the company were:

For every 20 - 25 samples a duplicate was sent for assay

For every 50 samples a blank sample and a CRM (assay standard) were sent for assay

Duplicate, blank and CRM analyses were within acceptable limits of expected values

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.

·; No verification other than the quality control procedures referred to above were conducted.

·; Assay results for samples were received electronically from SGS Laboratories and uploaded onto the company's database managed by Reflex Hub.

·; No adjustment of assay data, including high grade cutting, was undertaken, other than the quoting of average values over specified intervals.

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.

·; Drill hole collar locations were recorded at the completion of each hole by handheld Garmin GPS, with horizontal accuracy of approx. 3 metres

·; No downhole surveying of drillholes was conducted

·; Positional data was recorded in projection UTM WGS84 Zone 28N.

·; The accuracy provided by handheld GPS is adequate for the exploratory nature of the drill program

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.

·; The drill holes were the first exploratory holes in the area and the objective was to test for the presence of gold. Drill hole spacing is not adequate, at this stage, for Mineral resource estimation.

·; Aircore drill samples were in most cases composited into 4m interval samples for analysis. The bottom hole assay sample was in all cases over 1 metre. RC samples were composited over 4m in the oxidised zone. In fresh rock 1m assay sample intervals were 1m.

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.

·; All aircore holes were vertical, the objective being to obtain a sample of bedrock. Each RC hole was intended to have an azimuth approximately 90 degrees to the strike. As outcrop is poor, drill density sparse and the orientation of gold bearing structures poorly understood, the true width of the drill intersections is not clear.

Sample security

·; The measures taken to ensure sample security.

·; Samples were taken by vehicle on the day of collection to the company's manned field camp and then approximately weekly to the company's secure facility in Nouakchott. After approval by the government the samples were securely packaged and transported by road to the SGS facility in Kayes, Mali.

Audits or reviews

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

·; No reviews or audits of sampling techniques have been conducted

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.

·; Results reported lie on 2 Permis de Recherche: Hadeibet Bellaa (referred to as Bella) No 2457, and Touerig Taet (referred to as Taet) No 2458 which were granted to Tiris International Mining Company sarl, a wholly owned Mauritanian subsidiary of Aura Energy, on July 9, 2019.

·; The 2 permits have been granted for a period of 3 years, extendable up to 9 years.

·; Aura is not aware of any impediment to obtaining licences to operate in the area.

Exploration done by other parties

·; Acknowledgment and appraisal of exploration by other parties.

·; All results referred to were carried out by Drake Resources Limited, the former holder of exploration permits over the area.

Geology

·; Deposit type, geological setting and style of mineralisation.

·; The permit lie on Archean greenstone belts and the gold mineralisation appears to be to be orogenic gold type and similar to that in other Archean greenstones provinces in Canada, Australia, East Africa. The elevated nickel and cobalt values are associated with ultramafic rocks, a situation common in other Archean greenstone provinces.

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:

1. easting and northing of the drill hole collar

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

3. dip and azimuth of the hole

4. down hole length and interception depth

5. 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.

·; Hole collar coordinates, azimuth and dip are recorded in the text of the ASX announcement or accompanying Addendum.

·; The area is a flat peneplain and hole RLs are not material for the interpretations presented in the announcement.

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 weighting or grade truncation or high-grade cutting techniques have been applied to the data reported.

·; Interval grades reported are standard length weighted averages

·; Where replicate assays have been carried out the value reported is the arithmetic average of replicated assays.

·; No metal equivalents have been reported

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').

·; Orientation of the mineralised systems are as yet poorly understood. True widths of quoted downhole intersections are therefore uncertain.

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.

·; Maps and a section are provided in the main announcement text.

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.

·; Results reported are highlights from a program of aircore and RC drilling conducted between February 2011 and June 2012, involving 10 RC and 113 aircore drillholes in Bella permit and 23 RC and 346 aircore drillholes into Taet permit. The objective of the programs was to locate zones of gold and base metal mineralisation. The highlight results reported are consistent with that objective.

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.

·; In addition to drilling, airborne magnetic surveys were flown by the previous explorer over both permits, and this was used to interpret geology and structure and to guide the drilling.

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.

·; Previous work on the permit areas has been first pass exploration conducted over an 18-month period and results reported are from that program. Much remains to be done to assess the significance of anomalous values intersected. Previous work was focussed on gold and little attention was paid to battery metals despite the location of strong nickel and cobalt values.

·; The next programs are likely to involve: ground geophysics to locate sulphide mineralisation and to help define drill targets, aircore or RAB drilling to collect basement samples, particularly in areas were high nickel values have been shown to occur, deep inclined RC and diamond drillholes to define the size of mineralised zones already identified as well as testing targets arising.