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MRG METALS LIMITED — Capital/Financing Update 2021
Jun 28, 2021
65374_rns_2021-06-28_dd2c4216-5338-425c-9e6d-07dc8df552ef.pdf
Capital/Financing Update
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ASX ANNOUNCEMENT
29 June 2021
NHACUTSE HIGH GRADE ZONES EXPANDED SIGNIFICANTLY THROUGH
AIRCORE DRILLING
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Key Highlights
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16 infill/extension Aircore holes at Nhacutse have expanded the surface footprint of the Nhacutse very high grade mineralisation to a zone of 4 sq km.
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This new drilling confirms Nhacutse as a high potential mine start-up opportunity for MRG, through the potential delivery of an MRE with well in excess of the target 100 Mt at THM grades higher than the foundation Koko Massava JORC Resource.
Mineralisation remains open in all directions, including being open at depth.
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Significant visually estimated (VIS EST) Total Heavy Mineral (THM) drill results include:
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21CSAC721 0 – 58.5m 58.5m @ VIS EST 5.5% THM Including 28.5 – 43.5m 15.0m @ VIS EST 8.5% THM;
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• 21CSAC724 0 – 46.5m 46.5m @ VIS EST 6.0% THM Including 0 – 39.0m 39.0m @ VIS EST 6.3% THM;
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• 21CSAC725 0 – 57.0m 57.0m @ VIS EST 5.1% THM Including 0 – 25.5m 25.5m @ VIS EST 6.4% THM;
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• 21CSAC727 0 – 54.0m 54.0m @ VIS EST 6.3% THM; • 21CSAC728 0 – 54.0m 54.0m @ VIS EST 6.0% THM Including 0 – 49.5m 49.5m @ VIS EST 6.2% THM;
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• 21CSAC729 0 – 58.5m 58.5m @ VIS EST 6.1% THM Including 36.0 – 54.0m 18.0m @ VIS EST 7.4% THM;
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• 21CSAC734 0 – 49.5m 49.5m @ VIS EST 5.6% THM Including 0 – 30.0m 30.0m @ VIS EST 6.2% THM; and
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• 21CSAC735 0 – 54.0m 54.0m @ VIS EST 5.8% THM; Including 0 – 28.5m 28.5m @ VIS EST 6.2% THM.
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Prior to this program, Nhacutse was interpreted to contain 2 smaller, discrete zones of similar very high grade.
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Leapfrog 3D modelling has been undertaken on the visually estimated data to support upcoming MRE studies.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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MRG Metals Limited (“ MRG ” or “ the Company ”) ( ASX Code: MRQ ) is pleased to announce the visually estimated ( VIS EST ) results of its recently completed follow-up extension Aircore drilling program (Figure 2) at the Company’s Nhacutse High to Very High Grade mineralised areas within its Corridor South (6621L) exploration license (Figure 1).
The 16 hole aircore drilling program (Figure 2) targeted open strike areas identified during the most recent infill and extension drilling program (refer ASX Announcement 06 April 2021, assay results still pending) around the 2 high to very high grade zones (Figures 2 and 3).
Excellent VIS EST results were returned from the majority of the holes, with highlights including:
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Holes 21CSAC721 to ‘723 extending the Very High Grade zone to the north-northeast, with the area still open in this direction;
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21CSAC724 and ‘725 extending the Very High Grade zone to the west (see western area in longitudinal section, Figure 5), with the area still open in this direction;
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21CSAC730 to ‘736 extending the smaller Very High Grade to the east; and
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21CSAC726 to ‘729 indicating high grades between these two zones, linking the two and now taking the area of very high grade THM mineralisation to approximately 4 sq km (Figure 3; Table 1).
Mineralisation in all holes is from surface, with significantly thick intersections with VIS EST >6% THM mineralisation in some holes; with hole 21CSAC729 for example demonstrating VIS EST THM of 6.1% over 58.5m from surface to 58.5m (Table 1).
Some very high grade intersections are also present within some holes, for instance 21CSAC721 with VIS EST 8.5% THM over 18.0m from 28.5m – 43.5m. Individual 1.5m intervals also show some very high VIS EST THM grades, up to 12.0% THM (Figure 4).
MRG Metals Chairman, Mr Andrew Van Der Zwan said: “With the very positive VIS EST findings from this drilling program, MRG is confident that this target area represents an excellent opportunity to present the Company’s second MRE and resource report, with it also meeting the Company’s goal of to supply +100 Mt of very high grade resource to the Corridor inventory, at THM grades higher than its existing JORC compliant Koko Massava Mineral Resource Estimate (MRE) of 1.423 Mt @ 5.2% THM (refer ASX Announcement 22 April 2020).”
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Figure 1: Map of the location of the MRG projects, work took place in Corridor South (6621L).
Nhacutse Infill Drilling
Previous reconnaissance hand auger (refer ASX Announcement 3 July 2020) and Aircore drilling programs (refer ASX Announcements 24 November 2020, 7 January 2021 and 27 January 2021) identified very high grade THM mineralisation north to northeast of the town of Nhacutse. A recently completed aircore drilling program (refer ASX Announcement 06 April 2021, assay results still pending) further delineated two very high grade mineralised zones, but the drilling also showed that there was strike potential in most directions of the two zones.
A 16 aircore hole program of 829m and 576 X 1.5m individual interval samples (inclusive of QAQC samples) specifically targeted these areas, with excellent VIS EST THM results and outcomes for the drilling (Figure 3, Table 1). The mineralisation was successfully extended and also still remains open in some of the directions, particularly to the north-northeast and west of the very high grade zone (Figures 3 and 5). From the VIS EST results it appears as if the two zones are also connected, with very high VIS EST grades intersected between the two zones, with 21CSAC729 for instance returning VIS EST 6.2% THM from surface to 58.5m. The combined mineralised area now has an approximately 4 sq km area.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890 12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Figure 2: Map of the Corridor Central (6620L) and Corridor South (6621L) Projects showing the locations of the various Prospects and the drilled aircore holes within Corridor South (6621L).
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Figure 3: Map of the Nhacutse Project within Corridor South (6621L) showing the VIS EST THM results of the drilled aircore holes around the 2 very high grade target areas, the expected / targeted outline of the new very high grade mineralisation at Nhacutse north and the historic results from all previous auger and aircore drilling in the area.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890 12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Figure 4: Images of some of the high grade intersections, photos done at the drill rig of the pans used for geological logging and VIS EST of the THM. Reference sample bags with the drill intersection, as well as the BH and sample ID (2172126 shows the 21 as drill year, 721 as the BH ID and 26 as the sample number).
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Figure 5: Long section l through the very high grade zone north of Nhacutse, showing historic aircore holes with assay data and the current aircore holes (21CSAC724, ‘725, ‘726, ‘729, ‘730, ‘732 and ‘735) as VIS EST THM data.
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Table 1 : Summary collar and visual estimated THM% results for aircore drill data for Nhacutse drilling completed during June 2021.
| DRILLHOLE INFORMATION | DRILLHOLE INFORMATION | DRILLHOLE INFORMATION | DRILLHOLE INFORMATION | DRILLHOLE INFORMATION | DRILLHOLE INFORMATION | MINERALISATION | MINERALISATION | MINERALISATION | MINERALISATION |
|---|---|---|---|---|---|---|---|---|---|
| HOLE ID | UTM EAST WGS84 |
UTM NORTH WGS84 |
ELEV'N (M) |
EOH (M) |
DRILL TYPE |
FROM (M) | TO (M) | INTERSECTION (M) |
% VIS EST THM |
| 21CSAC721 | 7250350 | 572339 | 74 | 60.0 | AIRCORE | 0.0 | 58.5 | 58.5 | 5.5 |
| 28.5 | 43.5 | 15.0 | 8.5 | ||||||
| 21CSAC722 | 7250168 | 572574 | 70 | 60.0 | AIRCORE | 0.0 | 60.0 | 60.0 | 3.9 |
| 0.0 | 18.0 | 18.0 | 4.8 | ||||||
| 21CSAC723 | 7249996 | 572821 | 79 | 54.0 | AIRCORE | 0.0 | 52.5 | 52.5 | 4.9 |
| 0.0 | 27.0 | 27.0 | 6.0 | ||||||
| 21CSAC724 | 7248720 | 571057 | 76 | 54.0 | AIRCORE | 0.0 | 46.5 | 46.5 | 6.0 |
| 0.0 | 39.0 | 39.0 | 6.3 | ||||||
| 21CSAC725 | 7248650 | 570748 | 69 | 57.0 | AIRCORE | 0.0 | 57.0 | 57.0 | 5.1 |
| 0.0 | 25.5 | 25.5 | 6.4 | ||||||
| 21CSAC726 | 7248280 | 572762 | 84 | 54.0 | AIRCORE | 0.0 | 54.0 | 54.0 | 5.4 |
| 0.0 | 49.5 | 49.5 | 5.6 | ||||||
| 21CSAC727 | 7248115 | 572522 | 65 | 54.0 | AIRCORE | 0.0 | 54.0 | 54.0 | 6.3 |
| 21CSAC728 | 7248767 | 572955 | 80 | 54.0 | AIRCORE | 0.0 | 54.0 | 54.0 | 6.0 |
| 0.0 | 49.5 | 49.5 | 6.2 | ||||||
| 21CSAC729 | 7248368 | 573258 | 86 | 58.5 | AIRCORE | 0.0 | 58.5 | 58.5 | 6.1 |
| 36.0 | 54.0 | 18.0 | 7.4 | ||||||
| 21CSAC730 | 7248153 | 573766 | 97 | 40.5 | AIRCORE | 0.0 | 40.5 | 40.5 | 5.4 |
| 0.0 | 30.0 | 30.0 | 5.8 | ||||||
| 21CSAC731 | 7247827 | 573671 | 85 | 39.0 | AIRCORE | 0.0 | 39.0 | 39.0 | 5.3 |
| 0.0 | 33.0 | 33.0 | 5.6 | ||||||
| 21CSAC732 | 7248080 | 574108 | 80 | 51.0 | AIRCORE | 0.0 | 51.0 | 51.0 | 5.6 |
| 21CSAC733 | 7247424 | 573979 | 71 | 49.5 | AIRCORE | 0.0 | 49.5 | 49.5 | 5.3 |
| 0.0 | 24.0 | 24.0 | 5.8 | ||||||
| 21CSAC734 | 7247664 | 574439 | 79 | 51.0 | AIRCORE | 0.0 | 49.5 | 49.5 | 5.6 |
| 0.0 | 30.0 | 30.0 | 6.2 | ||||||
| 21CSAC735 | 7247950 | 574485 | 80 | 54.0 | AIRCORE | 0.0 | 54.0 | 54.0 | 5.8 |
| 0.0 | 28.5 | 28.5 | 6.2 | ||||||
| 21CSAC736 | 7247319 | 574365 | 72 | 39.0 | AIRCORE | 0.0 | 33.0 | 33.0 | 5.7 |
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
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Competent Persons’ Statement
The information in this report, as it relates to Mozambique Exploration Results is based on information compiled and/or reviewed by Mr JN Badenhorst, who is a member of the South African Council for Natural Scientific Professions (SACNASP) and the Geological Society of South Africa (GSSA). Mr Badenhorst is a contracted employee of the Company and has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which has been undertaken to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Badenhorst consents to the inclusion in this report of the matters based on the information in the form and context in which they appear.
This release is authorized by the Board of MRG Metals Ltd.
For more Information please contact:
MRG Metals Investor Relations Andrew Van Der Zwan Victoria Humphries Chairman NWR Communications M: +61 (0) 400 982 987 M: +61 (0) 431 151 676 E: [email protected] E: [email protected]
MRG Metals Limited ABN: 83 148 938 532 / ASX Code: MRQ Phone: +61 3 5330 5800 / Fax: +61 3 53330 5890
12 Anderson Street West, Ballarat VIC 3350 / PO Box 237 Ballarat VIC 3353 www.mrgmetals.com.au / [email protected]
Appendix 1
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
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Criteria JORC Code explanation Sampling • Nature and quality of sampling (eg cut channels, random chips, or techniques 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.
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Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.
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Aspects of the determination of mineralisation that are Material to the Public Report.
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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.
Commentary
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Aircore drilling was used to obtain samples at 1.5m intervals. • The larger 1.5m interval aircore drill samples were homogenized by rotating the sample bag prior to being grab sampled for panning.
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• A sample of sand, approximately 20g, was scooped from the sample bag of each sample interval for wet panning and visual estimation.
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The same sample mass is used for every pan sample visual estimation.
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The consistent sized pan sample is to ensure visual calibration is maintained for consistency in percentage visual estimation of total heavy mineral (THM).
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Images of pan concentrate samples with associated laboratory THM results are used in the field as comparisons to further refine visual estimation of THM.
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Geologists enter the laboratory THM results for each sample on field log sheets against the visual estimation of THM to refine and further calibrate field visual estimation of THM.
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Geotagged photographs are taken of each panned sample with the corresponding sample bag to enable easy reference at a later date.
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• A sample ledger is kept at the drill rig for recording sample intervals and sample mass, and photographs are taken of samples for each hole to cross-reference with logging.
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The large 1.5m drill samples have an average of about 7kg, range 1-21kg, and are being split down in Mozambique to approximately 300-600g using a three tier riffle splitter for export to the Primary processing laboratory.
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At the laboratory the 300-600g laboratory sample was dried and split to 100g, de-slimed (removal of -45µm fraction) and oversize (+1mm fraction) removed, then subjected to heavy liquid separation using TBE to determine total heavy mineral (THM) content.
1
| Criteria | **JORC Code explanation ** | Commentary |
|---|---|---|
| Drilling | • Drill type (eg core, reverse circulation, open-hole hammer, rotary air | •Reverse Circulation ‘Aircore’ drilling with inner tubes for sample |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, | return was used. |
| triple or standard tube, depth of diamond tails, face-sampling bit or | •Aircore drilling is considered a standard industry technique for | |
| other type, whether core is oriented and if so, by what method, etc). | heavy mineral sand (HMS) mineralization. Aircore drilling is a form | |
| of reverse circulation drilling where the sample is collected at the | ||
| face and returned inside the inner tube. | ||
| •Aircore drill rods used were 3m long. | ||
| •Drill rods used were 76mm in diameter and NQ diameter (80mm) | ||
| Harlsan aircore drill bits were used. | ||
| •All drill holes were drilled vertical. | ||
| •The drilling onsite is governed by an Aircore Drilling Guideline to | ||
| ensure consistency in application of the method between geologists. | ||
| Drill sample | • Method of recording and assessing core and chip sample | •Drill sample recovery is monitored by measuring and recording the |
| recovery | recoveries and results assessed. | total mass of each 1.5m sample at the drill rig with a standard spring |
| • Measures taken to maximise sample recovery and ensure | balance. | |
| representative nature of the samples. | •While initially collaring the hole, limited sample recovery can occur | |
| • Whether a relationship exists between sample recovery and grade | in the initial 0.0m to 3.0m sample intervals owing to sample and air | |
| and whether sample bias may have occurred due to preferential | loss into the surrounding loose soil. | |
| loss/gain of fine/coarse material. | •The initial 0.0m to 3.0m sample intervals are drilled very slowly in | |
| order to achieve optimum sample recovery. | ||
| •The entire 1.5m sample is collected at the drill rig in large numbered | ||
| plastic bags for dispatch to the onsite initial split preparation facility. | ||
| •At the end of each drill rod, the drill string is cleaned by blowing | ||
| down with air to remove any clay and silt potentially built up in the | ||
| sample pipes and cyclone. | ||
| •The twin-tube aircore drilling technique is known to provide high | ||
| quality samples from the face of the drill hole. | ||
| •Wet and moist samples are placed into large plastic basins to dry | ||
| prior to splitting. | ||
| Logging | • Whether core and chip samples have been geologically and | •The 1.5m aircore drill intervals are logged onto paper field log |
| geotechnically logged to a level of detail to support appropriate | sheets at the drill site prior to transcribing into a Microsoft Excel | |
| Mineral Resource estimation, mining studies and metallurgical | spreadsheet at the field office. Field paper logs are scanned and | |
| studies. | archived digitally on a cloud storage site with the broader geological | |
| • Whether logging is qualitative or quantitative in nature. Core (or | database. | |
| costean, channel, etc) photography. | •The aircore samples were logged for lithology, colour, grainsize, | |
| • The total length and percentage of the relevant intersections | rounding,sorting,estimated %THM,estimated %slimes and any |
2
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| logged. | relevant comments, such as slope and vegetation. | ||
| • | A representative portion of every sample interval is collected in a | ||
| chip-tray and archived at the field base for any additional logging. A | |||
| photograph is collected of the chip tray related to each hole and is | |||
| digitally archived on a cloud storage site. | |||
| • | Geological logging is governed by an Aircore Drilling Guideline | ||
| document with predefined log codes and guidance of what to | |||
| include in data fields to ensure consistency between individuals | |||
| logging data. | |||
| • | Data is backed-up each day at the field office to a cloud storage | ||
| site. | |||
| • | Data from the Microsoft Excel spreadsheets is imported into a | ||
| Microsoft Access database and the data is subjected to numerous | |||
| validationqueries to ensure data quality. | |||
| Sub-sampling | • If core, whether cut or sawn and whether quarter, half or all core |
• | The entire 1.5m aircore drill sample collected at the rig was |
| techniques | taken. | dispatched to a sample preparation facility to split with a three tier | |
| and sample | • If non-core, whether riffled, tube sampled, rotary split, etc and | riffle splitter to reduce sample mass. | |
| preparation | whether sampled wet or dry. | • | The water table depth was noted in all geological logs if intersected. |
| • For all sample types, the nature, quality and appropriateness of the | • | Employees undertaking the primary sampling and splitting are | |
| sample preparation technique. | closely monitored by a geologist to ensure sampling quality is | ||
| • Quality control procedures adopted for all sub-sampling stages to | maintained. | ||
| maximise representivity of samples. | • | Almost all of the samples are sand, silty sand, sandy silt, clayey | |
| • Measures taken to ensure that the sampling is representative of the | sand or sandy clay and this sample preparation method is | ||
| in situ material collected, including for instance results for field | considered appropriate. | ||
| duplicate/second-half sampling. | • | The sample sizes were deemed suitable to reliably capture THM, | |
| • Whether sample sizes are appropriate to the grain size of the | slime, and oversize characteristics, based on industry experience of | ||
| material being sampled. | the geologists involved and consultation with laboratory staff. | ||
| • | Field duplicates of the samples are completed at a frequency of 1 | ||
| per 25 primary samples. | |||
| • | Standard Reference Material (SRM) samples are inserted into the | ||
| sample streamat afrequency of 1per50 samples. | |||
| Quality of | • The nature, quality and appropriateness of the assaying and | • | The wet panning of samples provides an estimate of the %THM |
| assay data and laboratory tests |
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, |
• | content within the sample which is sufficient for the purpose of determining approximate concentrations of %THM. The field derived visual panned THM estimates are compared to a range of laboratory derived THM images of pan concentrates. This allows the field geologists to calibrate the field panned visual estimated THM with known laboratory measured THM grades. |
3
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| duplicates, external laboratory checks) and whether acceptable | ||
| levels of accuracy (ie lack of bias) and precision have been | ||
| _established. _ | ||
| Verification of | • The verification of significant intersections by either independent or |
•Selected visual estimated THM field data are checked by the Chief |
| sampling and | alternative company personnel. | Geologist. |
| assaying | • The use of twinned holes. | •Significant visual estimated THM >5% are verified by the Chief |
| • Documentation of primary data, data entry procedures, data | Geologist. This is done either in the field or via field photographs of | |
| verification, data storage (physical and electronic) protocols. | the pan sample. | |
| • Discuss any adjustment to assay data. | •The Chief Geologist has made numerous visits to the field drill sites | |
| to train and embed process and procedure with field staff. | ||
| •The geologic field data is manually transcribed into a master | ||
| Microsoft Excel spreadsheet which is appropriate for this stage in | ||
| the exploration program. | ||
| •The raw field data is checked in the Microsoft Excel format first to | ||
| identify any obvious errors or outlier data. The data is then imported | ||
| into a Microsoft Access database where it is subjected to various | ||
| validation queries. | ||
| •Test work is taking place at a Secondary laboratory to check the | ||
| veracity of the Primary laboratory data. This work is part of the | ||
| Company’s standard QA/QC procedure. | ||
| •A process of laboratory data validation using mass balance is | ||
| undertaken to identify entry errors or questionable data. | ||
| •Field and laboratory duplicate data pairs (THM/oversize/slime) of | ||
| each batch are plotted to identify potential quality control issues. | ||
| Location of | • Accuracy and quality of surveys used to locate drill holes (collar and | •Downhole surveys for these aircore holes are not required due to |
| data points | down-hole surveys), trenches, mine workings and other locations | the relatively shallow nature. |
| used in Mineral Resource estimation. | •A handheld 16 channel Garmin GPS is used to record the positions | |
| • Specification of the grid system used. | of the aircore holes in the field. | |
| • Quality and adequacy of topographic control. | •The handheld Garmin GPS has an accuracy of +/- 5m in the | |
| horizontal. | ||
| •The datum used for coordinates is WGS84 zone 36S. | ||
| •The accuracy of the drillhole locations is sufficient for this early | ||
| stage exploration. | ||
| Data spacing | • Data spacing for reporting of Exploration Results. | •Hole spacing on completion of this drill program brought the spacing |
| and | • Whether the data spacing and distribution is sufficient to establish | in the main target areas to 250m - 500m. |
| distribution | the degree of geological and grade continuity appropriate for the | •The spacing between aircore holes and between lines combined |
| Mineral Resource and Ore Reserve estimation procedure(s) and | withthat ofthe previously drilled auger holesis sufficient to provide |
4
| Criteria | **JORC Code explanation ** | Commentary |
|---|---|---|
| classifications applied. | a good degree of confidence in geological models and grade | |
| • Whether sample compositing has been applied. | continuity between holes for aeolian style HMS deposits. | |
| •Each aircore drill sample is a single 1.5m sample of sand | ||
| intersected down the hole. | ||
| •No compositing has been applied to values of THM, slime and | ||
| oversize. | ||
| Orientation of | • Whether the orientation of sampling achieves unbiased sampling of |
•The aircore drilling was located at selected sites along the |
| data in | possible structures and the extent to which this is known, | interpreted strike of mineralization defined by reconnaissance auger |
| relation to | considering the deposit type. | drill data and geophysical data interpretation. |
| geological | • If the relationship between the drilling orientation and the orientation | •Drill holes were vertical and the nature of the mineralisation is |
| structure | of key mineralised structures is considered to have introduced a | relatively horizontal. |
| sampling bias, this should be assessed and reported if material. | •The orientation of the drilling is considered appropriate for testing | |
| the lateral and vertical extent of mineralization without any bias. | ||
| Sample | • The measures taken to ensure sample security. | •Field photographs are taken of each sample bag with corresponding |
| security | sample number and panned sample in order to track numbers of | |
| samples per hole and per batch. | ||
| •Aircore samples remained in the custody of Company | ||
| representatives while they were transported from the field drill site to | ||
| Chibuto field camp for splitting and other processing. | ||
| •Aircore samples remain in the custody of Company representatives | ||
| until they are transported to Maputo for final packaging and | ||
| securing. | ||
| •The Company uses a commercial shipping company, Deugro or | ||
| DHL, to ship samples from Mozambique to Perth. | ||
| Audits or | • The results of any audits or reviews of sampling techniques and | •Internal data and procedure reviews are undertaken. |
| reviews | data. | •No external audits or reviews have been undertaken. |
5
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | • Type, reference name/number, location and ownership including | •The exploration work was completed on the Corridor Central |
| tenement and | agreements or material issues with third parties such as joint |
tenement (6620L) which is 100% owned by the Company through its |
| land tenure | ventures, partnerships, overriding royalties, native title interests, | 100% ownership of its subsidiary, Sofala Mining & Exploration |
| status | historical sites, wilderness or national park and environmental | Limitada, in Mozambique. |
| settings. | •All granted tenements have initial 5 year terms, renewable for 3 | |
| • The security of the tenure held at the time of reporting along with any | years. An application for renewal of tenement 6621L was submitted in | |
| known impediments to obtaining a licence to operate in the area. | 23 September 2019 and is under review. | |
| •Traditional landowners and village Chiefs within the areas of influence | ||
| were consulted prior to the aircore drilling programme and were | ||
| supportive of the programme. | ||
| •Representatives from the Provincial Directorate of Mineral Resources | ||
| and Directorate of Lands, Environment and Rural Development, and | ||
| District Planning and Infrastructure Departments are also part of the | ||
| consent and consultation process. | ||
| •An Environment Management Plan was prepared by an independent | ||
| consultant and submitted to the Gaza Provincial Directorate of Lands, | ||
| Environment and Rural Development in accordance with Mining Law | ||
| and Regulations. An Environmental License has been obtained by the | ||
| Company. | ||
| Exploration | • Acknowledgment and appraisal of exploration by other parties. | •Historic exploration work was completed by Corridor Sands Limitada, |
| done by other | a subsidiary of Southern Mining Corporation and subsequently | |
| parties | Western Mining Corporation, in 1999. BHP-Billiton acquired Western | |
| Mining Corporation and undertook a Bankable Feasibility Study of the | ||
| Corridor Deposit 1 about 15km north of the Company’s tenements. | ||
| •The Company has obtained digital data in relation to this historic | ||
| information. | ||
| •The historic data comprises limited Aircore/Reverse Circulation | ||
| drilling. | ||
| •The historic results are not reportable under JORC 2012. | ||
| Geology | • Deposit type, geological setting and style of mineralisation. | •Two types of heavy mineral sand mineralisation styles are possible |
| along coastal Mozambique: | ||
| 1. Thin but high grade strandlines which may be related to marine | ||
| or fluvial influences, and | ||
| 2. Large but lowergrade deposits related to windblown sands. |
6
| Criteria | JORC Code explanation | Commentary | ||||||
|---|---|---|---|---|---|---|---|---|
| •The coastline of Mozambique is well known for | massive dunal | |||||||
| systems such as those developed near | Inhambane (Rio Tinto’s | |||||||
| Mutamba deposit), near Xai Xai (Rio Tinto’s Chilubane deposit) and | ||||||||
| in Nampula Province (Kenmare’s Moma deposit). Buried strandlines | ||||||||
| are likely in areas where palaeoshorelines can be defined along | ||||||||
| coastal zones. | ||||||||
| Drill hole | • A summary of all information material to the understanding of the | •Summary drill hole information is presented within Table 1 of the main | ||||||
| Information | exploration results including a tabulation of the following information | body of text of this announcement. | ||||||
| for all Material drill holes: | ||||||||
o easting and northing of the drill hole collar |
||||||||
o elevation or RL (Reduced Level – elevation above sea level in |
||||||||
| metres) of the drill hole collar | ||||||||
o dip and azimuth of the hole |
||||||||
o down hole length and interception depth |
||||||||
o 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. _ | ||||||||
| Data | • In reporting Exploration Results, weighting averaging techniques, | •No cut-offs were used in the downhole averaging of results. | ||||||
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | •The visual estimated THM% averaging | is grade-weighted. | |||||
| methods | grades) and cut-off grades are usually Material and should be stated. | •An example of data averaging is shown below. | ||||||
| • Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used |
HOLE_ID | FROM | TO | PCT VIS THM |
Average visTHM |
Average visTHM |
||
| for such aggregation should be stated and some typical examples of | 19CCAC104 | 0.0 | 3.0 | 6.0 | ||||
| such aggregations should be shown in detail. • The assumptions used for any reporting of metal equivalent values should be clearly stated. |
19CCAC104 19CCAC104 19CCAC104 19CCAC104 19CCAC104 19CCAC104 19CCAC104 19CCAC104 |
3.0 6.0 9.0 12.0 15.0 18.0 21.0 24.0 |
6.0 9.0 12.0 15.0 18.0 21.0 24.0 27.0 |
6.0 6.0 8.0 6.2 6.6 5.5 8.0 4.0 |
37.5m @ 4.9% | 27m @ 6.3% | ||
| 19CCAC104 | 27.0 | 30.0 | 2.5 | |||||
| 19CCAC104 | 30.0 | 33.0 | 2.0 | |||||
| 19CCAC104 | 33.0 | 36.0 | 1.7 | |||||
| 19CCAC104 | 36.0 | 37.5 | 1.5 | |||||
| Relationship | • These relationships are particularly important in the reporting of | •The nature of the mineralisation is broadly horizontal, thus vertical | ||||||
| between | Exploration Results. | aircore holes are thought to represent close to true thicknesses of the | ||||||
| mineralisation | • If the geometry of the mineralisation with respect to the drill hole |
mineralisation. | ||||||
| widths and | angle is known, its nature should be reported. |
7
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| intercept | • If it is not known and only the down hole lengths are reported, there | •Downhole widths are reported. |
| lengths | should be a clear statement to this effect (eg ‘down hole length, true | |
| _width not known’). _ | ||
| Diagrams | • Appropriate maps and sections (with scales) and tabulations of | •Figures are displayed in the main text. |
| 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. _ | ||
| Balanced | • Where comprehensive reporting of all Exploration Results is not | •A summary of the visual estimated THM% data is presented in Table |
| reporting | practicable, representative reporting of both low and high grades | 1 of the main part of the announcement, comprising downhole |
| and/or widths should be practiced to avoid misleading reporting of | averages, together with maximum and minimum estimated THM | |
| Exploration Results. | values in each hole. | |
| Other | • Other exploration data, if meaningful and material, should be reported | •No other material exploration information has been gathered by the |
| substantive | including (but not limited to): geological observations; geophysical | Company. |
| exploration | survey results; geochemical survey results; bulk samples – size and | |
| data | method of treatment; metallurgical test results; bulk density, | |
| groundwater, geotechnical and rock characteristics; potential | ||
| _deleterious or contaminating substances. _ | ||
| Further work | • The nature and scale of planned further work (eg tests for lateral | •Further work will include heavy liquid separation analysis for |
| extensions or depth extensions or large-scale step-out drilling). | quantitative THM% data. | |
| • Diagrams clearly highlighting the areas of possible extensions, | •Additional mineral assemblage and ilmenite mineral chemistry | |
| including the main geological interpretations and future drilling areas, | analyses will also be undertaken on suitable composite HM samples | |
| provided this information is not commercially sensitive. | to determine valuable heavy mineral components. | |
| •As the project advances, TiO2 and contaminant test work analyses | ||
| will also be undertaken. |
8