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DEEP YELLOW LIMITED — Capital/Financing Update 2019
Aug 20, 2019
64808_rns_2019-08-20_285f664f-0d08-407c-af4d-f8639d613c48.pdf
Capital/Financing Update
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ASX & NSX: DYL / OTCQX: DYLLF
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ASX Announcement
21 August 2019
POSITIVE RESULTS FROM TUMAS 1 EAST DRILLING
HIGHLIGHTS
-
Exploration and resource drilling in Tumas 1 East area completed involving 118 holes for 895m.
-
Exploration drilling identifies new high-grade zone in Tributary 8 channel.
-
Best intersections include:
-
TA637 6m at 1,514ppm eU3O8 from surface
-
TA643 6m at 446ppm eU3O8 from surface and 1m at 530ppm eU3O8 from 10m
-
TA661 8m at 302ppm eU3O8 from 1m
-
-
Resource drilling in the peripherals of Tributary 5 closes off the previously discovered mineralisation sufficient to undertake an Inferred Resource Estimation.
-
Best intersections include:
o TW563 5m at 267ppm eU3O8 from 5m o TW564 5m at 351ppm eU3O8 from 5m o TW576 8m at 275ppm eU3O8 from 6m
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Drilling now moves to testing the prospective Tumas 3 West and East areas.
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To date only 50% of the known, highly prospective palaeochannel system drilled with a substantial 60km of this target remaining to be tested.
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Mineralisation is calcrete-associated hosted within palaeochannels, similar to the Langer Heinrich uranium mine located 30km to the north.
Deep Yellow Limited ( Deep Yellow ) is pleased to report the completion of the exploration and resource upgrade drilling in the Tumas 1 East palaeochannel. Resource drilling along Tributary 5 on EPL 3497 was completed where drill densities are now sufficient to undertake an Inferred Resource Estimation. Importantly, exploration drilling has delineated a new zone of high-grade uranium mineralisation at the confluence of Tributary 8 and the main Tumas channel. This EPL is held by Reptile Uranium Namibia (Pty) Ltd ( RUN ), part of the group of companies wholly owned by Deep Yellow.
Unit 17, Spectrum Building, 100-104 Railway Road Subiaco WA 6008 / PO Box 1770 Subiaco WA 6904 Tel : 61 8 9286 6999 / ABN 97 006 391 948 Email: [email protected] / Website: www.deepyellow.com.au
As advised in the June 2019 Quarterly Report, the first phase of drilling for the 2019/20 program commenced in July with resource-focussed infill RC drilling at Tributary 5 (409m involving 40 holes) and concluded mid-August after completing exploration drilling of Tributaries 3, 6 and 8 (486m involving 78 holes). Total drilled in this program was 118 RC holes for 895m.
All tributaries in the Tumas 1 East area have now been explored with resources established in Tributaries 1, 2, 4; and Tributary 5 is now ready for resource estimation to begin. Figures 1 and 2 show the prospective palaeochannel system outline and prospect locations.
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Figure 1: EPLs 3496, 3497 showing Tumas Deposits and main prospect locations over palaeochannels.
Page 2 of 21
Tumas 1 East Drilling
Resource upgrade drilling commenced early July 2019 at Tributary 5 continuing north of the Inferred Resource at Tumas 1 East as announced 27 March 2019. This work completed the infill drilling as required for resource estimation to be undertaken for Tributary 5. Drill spacings varied from 50m to 100m along lines 200m apart. The drilling at the Tributary 5, north of Tumas 1, has outlined an additional 3km of uraniferrous channel showing continuous calcrete uranium mineralisation. The mineralised channel ranges from 100m to 600m in width. The mineralisation is located at shallow depth between 2m to 15m below surface. In the Tributary 5 resource drilling area, uranium mineralisation >100ppm/m eU3O8 was, overall, identified in 82 (53%) of the 156 holes drilled in this zone. At >200ppm/m cut-off the average grade returned is 352ppm eU3O8. The mineralisation does not show any surface radiometric expression.
Drill hole locations from this program are shown in Figure 2. Figures 3 and 4 show a drill cross-section and long section, respectively highlighting the continuity and thickness of the mineralisation in Tributary 5.
Exploration drilling was carried out along Tributaries 3, 6 and 8. Thin low-grade mineralisation was encountered in Tributaries 3 and 6, however, high-grade mineralisation was encountered in Tributary 8 close to the confluence with the main Tumas channel. The best intersection was 1,514ppm U3O8 over 6m from surface. These positive results will be followed up in the near future.
The equivalent uranium values are based on down-hole radiometric gamma logging carried out by a fully calibrated Aus-Log gamma logging system.
Mineralised intersections that are above the 100ppm eU3O8 over 1m cut-off are tabulated in Table 1, Appendix 1. All drill hole locations are listed in Table 2, Appendix 1.
Analysis
The results of the ongoing exploration and resource drilling continue to define additional uranium mineralisation maintaining the highly encouraging prospectivity of these palaeochannels associated with the eastern extension of Tumas 1.
The exploration and resource upgrade drilling programs in Tumas 1 East area are now completed and succeeded in substantially extending the previous limits of mineralisation at Tumas 1. Drilling is also demonstrating the potential to further extend the mineralisation in this region at Tributary 8 and along other parts of the channel system. Testing for mineralisation in tributary channels has historically been neglected. These side channels are showing to be just as important as drilling the main channel targets for upgrade of the overall resource base associated with these highly fertile palaeochannels and significantly open up the prospectivity footprint associated with the Tumas channel system. The uranium mineralisation is obviously not confined to one simple, single channel but rather is associated with a complex palaeodrainage system containing several channels and tributaries.
Appendix 1, Table 1 lists the 24 exploration drill holes from the current drilling program at Tumas 1 East returning uranium intersections above cut-off and showing equivalent uranium values in ppm and thickness with hole depth and coordinates provided. Table 2 in Appendix 1 lists all 118 drill holes completed in July up to 16 August 2019 from the current drilling program, which are the subject of this release.
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Conclusion
The first 895m of the 11,000m drilling program that will be carried out in FY20 has again produced successful results with a substantial 92% of overall drilling planned for the year yet to be carried out. Ongoing drilling is confirming that the previously discovered deposits can be expanded upon, showing the high potential to add to the current uranium resource base of this project. In addition, work continues to emphasise the strong exploration potential of the extensive, uranium-fertile palaeochannel system within which the new Tumas palaeochannel discoveries occur.
There are now 5 distinct mineralised zones (Tumas 1 & 2, Tumas 3, Tubas Sand/Calcrete deposits and Tumas 1 East) identified within the 125km of palaeochannels that occur within the Reptile Project tenements (see Figure1). Approximately 50% of these have now sufficiently been explored over the past two and a half years and, to date, the inferred uranium resource base in the Tumas channel system has been increased by 160%. Some 50%, or approximately 60km, of this palaeochannel system which deepens to the west remains to be properly tested.
These positive results from the current 2019/20 and previous 2018 and 2017 drilling, together with the correct re-interpretation of historic exploration data which outlined the regional palaeochannel target, confirm management’s confidence that the existing uranium resource base for Langer Heinrich-style deposits within the Reptile Project area can be further increased.
It is planned that drilling will continue in the second half of 2019 with emphasis now changing towards testing both the east and west extensions of the Tumas 3 deposit and exploration at Tumas Central and Tubas Red Sand areas.
CEO Comment
John Borshoff commented: “ The ongoing drilling results as reported herein are clearly revealing just how fertile and prospective the main Tumas palaeochannel and its associated tributaries in fact are. The latest work is verifying the importance of including all tributaries feeding into the main channel into our search model when hunting for additional pounds of uranium. All this is considerably expanding the opportunity for the operational team to further and additionally grow the uranium resource base of the Reptile Project for those targets associated with Langer Heinrich-style deposits ”
Yours faithfully
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JOHN BORSHOFF Managing Director/CEO Deep Yellow Limited
For further information, contact:
John Borshoff Managing Director/CEO
Phone: +61 8 9286 6999 Email: [email protected]
For further information on the Company and its projects, please visit the website at: www.deepyellow.com.au
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Competent Person’s Statement
Exploration Competent Person’s Statement
The information in this announcement as it relates to exploration results was compiled by Mr Martin Hirsch, a Competent Person who is a Member of the Institute of Materials, Mining and Metallurgy (IMMM) in the UK. Mr Hirsch, who is currently the Exploration Manager for Reptile Mineral Resources and Exploration (Pty) Ltd ( RMR ), has sufficient experience which is 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 in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Hirsch consents to the inclusion in this announcement of the matters based on the information in the form and context in which it appears. Mr Hirsch holds shares in the Company.
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Figure 2 : Drill hole locations showing the recent drilling program at Tumas 1 East .The resource contours and the drill hole collars are coloured in eU3O8 grade thickness values (GT: eU3O8 pmm x m).
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Figure 3: Tumas 1 East, Tributary 5 – Cross Section 526900E.
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Figure 4: Tumas 1 East, Tributary 5 - NW-SE Long Section.
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APPENDIX 1: Drill Hole Status and Intersections
Table 1. Drill Hole Details – Anomalous Intervals (24 Holes drilled July to 16 August 2019)
| TUMAS 1 EAST - RESOURCE - EXPLORATION DRILLING (from July to August 2019) | |||||||||
| Table 1 - Drill Hole Status with eU3O8 determination | |||||||||
| Hole ID | From (m) |
Thickness (m) |
eU3O8 (ppm) |
From (m) | eU3O8 max (over 1 m) |
Easting | Northing | RL | TD (m) |
| TA555 | 9.0 | 2.0 | 184 | 10.0 | 224 | 528500 | 7452200 | 668 | 16 |
| TA563 | 6.0 | 5.0 | 267 | 7.0 | 573 | 528049 | 7451000 | 670 | 16 |
| TA564 | 6.0 | 5.0 | 351 | 6.0 | 519 | 527950 | 7451000 | 669 | 16 |
| TA565 | 7.0 | 4.0 | 219 | 8.0 | 267 | 528000 | 7451100 | 669 | 16 |
| TA569 | 4.0 | 8.0 | 167 | 9.0 | 319 | 527904 | 7450906 | 669 | 16 |
| TA570 | 4.0 | 3.0 | 157 | 6.0 | 218 | 527808 | 7450903 | 668 | 13 |
| TA570 | 10.0 | 1.0 | 148 | 10.0 | 148 | ||||
| TA573 | 4.0 | 7.0 | 126 | 5.0 | 170 | 527906 | 7450705 | 670 | 13 |
| TA574 | 4.0 | 7.0 | 220 | 10.0 | 780 | 527805 | 7450705 | 669 | 16 |
| TA575 | 8.0 | 6.0 | 141 | 12.0 | 301 | 527704 | 7450705 | 668 | 16 |
| TA576 | 6.0 | 8.0 | 275 | 8.0 | 901 | 527606 | 7450706 | 667 | 19 |
| TA579 | 7.0 | 7.0 | 160 | 11.0 | 291 | 527605 | 7450504 | 667 | 19 |
| TA580 | 6.0 | 7.0 | 200 | 11.0 | 394 | 527506 | 7450507 | 666 | 16 |
| TA585 | 4.0 | 3.0 | 276 | 6.0 | 488 | 525900 | 7452000 | 642 | 10 |
| TA599 | 6.0 | 1.0 | 111 | 6.0 | 111 | 525400 | 7452800 | 638 | 13 |
| TA604 | 1.0 | 1.0 | 117 | 1.0 | 117 | 524900 | 7451100 | 629 | 4 |
| TA605 | 3.0 | 1.0 | 116 | 3.0 | 116 | 524900 | 7451200 | 629 | 7 |
| TA606 | 3.0 | 3.0 | 111 | 3.0 | 185 | 524700 | 7451450 | 629 | 10 |
| TA611 | 0.0 | 2.0 | 357 | 1.0 | 439 | 522700 | 7450200 | 605 | 7 |
| TA634 | 1.0 | 8.0 | 186 | 4.0 | 306 | 527305 | 7447654 | 667 | 13 |
| TA635 | 6.0 | 4.0 | 138 | 6.0 | 346 | 527304 | 7447753 | 666 | 13 |
| TA637 | 0.0 | 6.0 | 1514 | 1.0 | 3174 | 516950 | 7449900 | 556 | 16 |
| TA643 | 0.0 | 6.0 | 446 | 3.0 | 1734 | 516950 | 7449800 | 558 | 13 |
| TA643 | 10.0 | 1.0 | 530 | 10.0 | 530 | ||||
| TA661 | 1.0 | 8.0 | 302 | 5.0 | 635 | 517600 | 7449350 | 558 | 13 |
| TA662 | 9.0 | 2.0 | 217 | 9.0 | 281 | 517600 | 7449300 | 558 | 13 |
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APPENDIX 1: Drill Hole Status and Intersections
Table 2. Drill Hole Locations July to 16 August 2019
| Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) |
|---|---|---|---|---|
| (118 holes completed from July to August 2019) | ||||
| Hole ID | Easting | Northing | RL | TD(m) |
| TA548 | 528900 | 7452200 | 673 | 19 |
| TA549 | 528900 | 7452299 | 673 | 7 |
| TA550 | 528900 | 7452400 | 673 | 4 |
| TA551 | 529300 | 7452300 | 677 | 10 |
| TA552 | 529300 | 7452400 | 677 | 13 |
| TA553 | 529300 | 7452500 | 678 | 10 |
| TA554 | 529300 | 7452600 | 679 | 4 |
| TA555 | 528500 | 7452200 | 668 | 16 |
| TA556 | 528500 | 7452300 | 669 | 4 |
| TA557 | 528700 | 7451650 | 672 | 10 |
| TA558 | 528700 | 7451550 | 671 | 7 |
| TA559 | 528700 | 7451450 | 672 | 10 |
| TA560 | 528900 | 7451650 | 674 | 4 |
| TA561 | 528899 | 7451549 | 674 | 7 |
| TA562 | 528900 | 7451449 | 673 | 4 |
| TA563 | 528049 | 7451000 | 670 | 16 |
| TA564 | 527950 | 7451000 | 669 | 16 |
| TA565 | 528000 | 7451100 | 669 | 16 |
| TA566 | 527900 | 7451101 | 668 | 10 |
| TA567 | 527857 | 7451003 | 668 | 7 |
| TA568 | 528004 | 7450906 | 670 | 10 |
| TA569 | 527904 | 7450906 | 669 | 16 |
| TA570 | 527808 | 7450903 | 668 | 13 |
| TA571 | 528100 | 7451100 | 666 | 13 |
| TA572 | 528200 | 7451100 | 667 | 10 |
| TA573 | 527906 | 7450705 | 670 | 13 |
| TA574 | 527805 | 7450705 | 669 | 16 |
| TA575 | 527704 | 7450705 | 668 | 16 |
| TA576 | 527606 | 7450706 | 667 | 19 |
| TA577 | 527507 | 7450704 | 666 | 7 |
| TA578 | 527103 | 7451655 | 656 | 7 |
| TA579 | 527605 | 7450504 | 667 | 19 |
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APPENDIX 1 (Table 2): Drill Hole Locations (continued)
| Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) |
|---|---|---|---|---|
| (118 holes completed from July to August 2019) | ||||
| Hole ID | Easting | Northing | RL | TD(m) |
| TA580 | 527506 | 7450507 | 666 | 16 |
| TA581 | 527405 | 7450506 | 665 | 4 |
| TA582 | 526100 | 7452000 | 643 | 4 |
| TA583 | 525900 | 7452200 | 642 | 4 |
| TA584 | 525900 | 7452100 | 642 | 4 |
| TA585 | 525900 | 7452000 | 642 | 10 |
| TA586 | 525900 | 7451900 | 641 | 10 |
| TA587 | 525900 | 7451801 | 641 | 4 |
| TA588 | 525500 | 7451550 | 636 | 7 |
| TA589 | 525500 | 7451650 | 637 | 7 |
| TA590 | 525498 | 7451749 | 637 | 7 |
| TA591 | 525499 | 7452000 | 638 | 10 |
| TA592 | 525500 | 7452100 | 638 | 10 |
| TA593 | 525400 | 7452200 | 638 | 4 |
| TA594 | 525400 | 7452300 | 637 | 4 |
| TA595 | 525400 | 7452400 | 637 | 7 |
| TA596 | 525400 | 7452500 | 637 | 4 |
| TA597 | 525400 | 7452600 | 637 | 4 |
| TA598 | 525400 | 7452700 | 638 | 10 |
| TA599 | 525400 | 7452800 | 638 | 13 |
| TA600 | 525300 | 7451200 | 633 | 4 |
| TA601 | 525300 | 7451300 | 633 | 7 |
| TA602 | 525300 | 7451400 | 634 | 7 |
| TA603 | 525300 | 7451500 | 634 | 7 |
| TA604 | 524900 | 7451100 | 629 | 4 |
| TA605 | 524900 | 7451200 | 629 | 7 |
| TA606 | 524700 | 7451450 | 629 | 10 |
| TA607 | 523900 | 7451251 | 618 | 7 |
| TA608 | 523901 | 7451300 | 619 | 4 |
| TA609 | 523101 | 7450650 | 610 | 4 |
| TA610 | 523100 | 7450750 | 611 | 4 |
| TA611 | 522700 | 7450200 | 605 | 7 |
| TA612 | 522700 | 7450299 | 606 | 7 |
| TA613 | 522690 | 7450400 | 607 | 4 |
| TA614 | 522700 | 7450500 | 608 | 4 |
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APPENDIX 1 (Table 2): Drill Hole Locations (continued)
Tumas 1 East (EPL3497)
| Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) |
|---|---|---|---|---|
| (118 holes completed from July to August 2019) | ||||
| Hole ID | Easting | Northing | RL | TD(m) |
| TA615 | 522702 | 7450154 | 606 | 4 |
| TA616 | 521104 | 7451405 | 598 | 4 |
| TA617 | 521103 | 7451355 | 598 | 7 |
| TA618 | 521103 | 7451304 | 598 | 4 |
| TA619 | 526800 | 7446300 | 634 | 7 |
| TA620 | 526800 | 7446100 | 634 | 7 |
| TA621 | 526800 | 7445900 | 634 | 4 |
| TA622 | 525604 | 7445905 | 647 | 4 |
| TA623 | 525604 | 7446104 | 647 | 4 |
| TA624 | 525604 | 7446303 | 646 | 4 |
| TA625 | 525604 | 7446506 | 646 | 4 |
| TA626 | 525603 | 7446703 | 644 | 7 |
| TA627 | 524804 | 7446105 | 637 | 4 |
| TA628 | 524804 | 7446304 | 636 | 4 |
| TA629 | 524804 | 7446906 | 635 | 7 |
| TA630 | 524804 | 7447105 | 634 | 4 |
| TA631 | 524006 | 7447404 | 624 | 7 |
| TA632 | 524007 | 7447205 | 624 | 7 |
| TA633 | 524005 | 7447006 | 625 | 4 |
| TA634 | 527305 | 7447654 | 667 | 13 |
| TA635 | 527304 | 7447753 | 666 | 13 |
| TA636 | 527305 | 7447854 | 666 | 4 |
| TA637 | 516950 | 7449900 | 556 | 16 |
| TA638 | 516850 | 7449900 | 555 | 7 |
| TA639 | 516750 | 7449900 | 555 | 4 |
| TA640 | 516700 | 7449800 | 558 | 4 |
| TA641 | 516800 | 7449800 | 558 | 4 |
| TA642 | 516900 | 7449800 | 558 | 10 |
| TA643 | 516950 | 7449800 | 558 | 13 |
| TA644 | 517000 | 7449800 | 558 | 4 |
| TA645 | 518050 | 7448450 | 558 | 4 |
| TA646 | 517950 | 7448450 | 558 | 7 |
| TA647 | 517850 | 7448450 | 558 | 4 |
| TA648 | 517750 | 7448450 | 558 | 4 |
| TA649 | 518650 | 7447450 | 558 | 4 |
| TA650 | 518750 | 7447450 | 558 | 7 |
| TA651 | 518850 | 7447450 | 558 | 4 |
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APPENDIX 1 (Table 2): Drill Hole Locations (continued)
Tumas 1 East (EPL3497)
| Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) | Tumas 1 East (EPL3497) |
|---|---|---|---|---|
| (118 holes completed from July to August 2019) | ||||
| Hole ID | Easting | Northing | RL | TD(m) |
| TA652 | 518950 | 7447450 | 558 | 4 |
| TA653 | 519750 | 7447050 | 558 | 4 |
| TA654 | 519750 | 7446950 | 558 | 4 |
| TA655 | 519750 | 7446850 | 558 | 4 |
| TA656 | 517000 | 7449200 | 558 | 4 |
| TA657 | 517050 | 7449200 | 558 | 4 |
| TA658 | 517150 | 7449200 | 558 | 4 |
| TA659 | 517250 | 7449200 | 558 | 4 |
| TA660 | 517350 | 7449200 | 558 | 4 |
| TA661 | 517600 | 7449350 | 558 | 13 |
| TA662 | 517600 | 7449300 | 558 | 13 |
| TA663 | 517600 | 7449400 | 558 | 4 |
| TA664 | 517600 | 7449450 | 558 | 4 |
| TA665 | 513000 | 7455800 | 507 | 19 |
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APPENDIX 2: Table 1 Report (JORC Code 2012 addition)
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| Sampling techniques | • Nature and quality of sampling (eg cut channels, random | • | The current drilling relies on down hole gamma data from calibrated probes |
| chips, or specific specialised industry standard measurement | which were converted into equivalent uranium values (eU3O8) by experienced | ||
| tools appropriate to the minerals under investigation, such as | DYL personnel and will be confirmed by a competent person (geophysicist). | ||
| down hole gamma sondes, or handheld XRF instruments, | First geochemical assay data are expected in September 2019. Previous drill | ||
| etc). These examples should not be taken as limiting the | data used in this report includes both geochemical assay data (U3O8) and down | ||
| broad meaning of sampling. | hole gamma derived equivalent uranium values (eU3O8). | ||
| • Include reference to measures taken to ensure sample | • | Appropriate factors were applied to all downhole gamma counting results to | |
| representivity and the appropriate calibration of any | make allowance for drill rod thickness, gamma probe dead times and | ||
| measurement tools or systems used. | incorporating all other applicable calibration factors. | ||
| • Aspects of the determination of mineralisation that are Material to the Public Report. |
Total gamma eU3O8 | ||
| • In cases where ‘industry standard’ work has been done this | • | 33mm Auslog total gamma probes were used and operated by company | |
| would be relatively simple (e.g. ‘reverse circulation drilling | personnel. | ||
| was used to obtain 1 m samples from which 3 kg was | • | Gamma probes were calibrated at Pelindaba, South Africa, in May 2007 and in | |
| pulverised to produce a 30 g charge for fire assay’). In other | December 2007. | ||
| cases, more explanation may be required, such as where | • | Between 2008 and 2013 sensitivity checks were conducted by periodic re- | |
| there is coarse gold that has inherent sampling problems. | logging of a test hole (Hole-ALAD1480) to confirm operation. | ||
| Unusual commodities or mineralisation types (eg submarine | • | Auslog probes were again re-calibrated at the calibration pit located at Langer | |
| nodules) may warrant disclosure of detailed information. | Heinrich Mine site in December 2014, May 2015, August 2017 and July 2018. | ||
| • | During the drilling, the probes were checked daily against a standard source. | ||
| • | Gamma measurements were taken at 5 cm intervals at a logging speed of | ||
| approximately 2m per minute. | |||
| • | Probing was done immediately after drilling mainly through the drill rods and in | ||
| some cases in the open holes. Rod factors have been established once | |||
| sufficient in rod and open hole data were available to compensate for the | |||
| reduced gamma counts when logging was done through the drill rods. No | |||
| correction for water was done. The drill holes were dry. | |||
| • | All gamma measurements were corrected for dead time which is unique to the | ||
| probe. | |||
| • | Allcorrected (dead time androdfactor) gammavalueswere converted to |
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APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| equivalent eU3O8values over the same intervals using the probe-specific K- | |||
| factor. | |||
| • | Disequilibrium studies on 22 samples by ANSTO Minerals in 2008 confirmed | ||
| that the U238decay chains of the wider Tumas deposit are within an analytical | |||
| error of ± 10%, in secular equilibrium. | |||
| Chemical assay data | |||
| • | Geochemical samples were derived from Reverse Circulation (RC) drilling at | ||
| intervals of 1 m. Samples were spilt at the drill site using either a riffle or cone | |||
| splitter to obtain a 1 to 4 kg sample from which 90 g will be pulverized to | |||
| produce a subset for XRF-analysis. | |||
| • | It is planned that 10 to 20% of the mineralisation from the Tumas 1 East drilling | ||
| will be assayed for U3O8by loose powder XRF or ICP-MS. | |||
| • | In the 2017 and 2018 resource drilling programs a total of 1,305 samples, | ||
| including duplicates, blanks and standards were submitted to ALS in Perth for | |||
| U3O8analysis following the procedure above for confirmatory assay. | |||
| • | These previous assay results confirm equivalent uranium grades correctly | ||
| correlated to the assay results and remain within a statistically acceptable | |||
| margin of error. | |||
| Drilling techniques | • Drill type (eg core, reverse circulation, open-hole hammer, | • | RC drilling is being used for the Tumas 1 East drilling program. |
| rotary air blast, auger, Bangka, sonic, etc) and details (eg | • | All holes are being drilled vertically and intersections measured present true | |
| core diameter, triple or standard tube, depth of diamond tails, | thicknesses. | ||
| face-sampling bit or other type, whether core is oriented and | |||
| _ifso, by what method, etc). _ | |||
| Drill sample recovery | • Method of recording and assessing core and chip sample | • | Drill chip recoveries are good at around 90%. |
| recoveries and results assessed. | • | Drill chip recoveries were assessed by weighing 1 m drill chip samples at the | |
| • Measures taken to maximise sample recovery and ensure | drill site. Weights were recorded in sample tag books. | ||
| representative nature of the samples. | • | Sample loss was minimised by placing the sample bags directly underneath | |
| • Whether a relationship exists between sample recovery and | cyclone/splitter | ||
| grade and whether sample bias may have occurred due to | |||
| preferential loss/gainof fine/coarse material. | |||
| Logging | • Whether core and chip samples have been geologically and | • | All drill holes are being geologically logged. |
| geotechnically logged to a level of detail to support | • | The logging is qualitative in nature. The lithology type is being determined for | |
| appropriate Mineral Resource estimation, mining studies and | all samples. | ||
| metallurgical studies. | • | Otherparametersroutinelyloggedinclude colour, colour intensity,weathering, |
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APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| • Whether logging is qualitative or quantitative in nature. Core | oxidation, grain size, carbonate (CaCO3) content, sample condition (wet, dry) | ||
| (or costean, channel, etc) photography. | and total gamma count (by handheld Rad-Eye scintillometer). | ||
| • The total length and percentage of the relevant intersections | • | Lithology codes were used to generate wireframes for the paleotopography of | |
| logged. | the palaeochannel. | ||
| • | This information was used in planning drill hole locations. | ||
| Sub-sampling | • If core, whether cut or sawn and whether quarter, half or all | • | A portable 2-tier (75%/25%) splitter was used to treat a full 1m sample from the |
| techniques and | core taken. | cyclone into an appropriate size assay sample. All sampling was dry. | |
| sample preparation | • If non-core, whether riffled, tube sampled, rotary split, etc and | • |
The above sub-sampling techniques are common industry practice and |
| whether sampled wet or dry. | appropriate. | ||
| • For all sample types, the nature, quality and appropriateness | • | Sample sizes are considered appropriate to the grain size of the material being | |
| of the sample preparation technique. | sampled. | ||
| • Quality control procedures adopted for all sub-sampling | • | Duplicates will be inserted into the assay batch at an approximate rate of one | |
| stages to maximise representivity of samples. | for every 10 samples which is compatible with industry norm. | ||
| • Measures taken to ensure that the sampling is representative | • |
Standards and blank samples will be inserted at an approximate rate of one | |
| of the in situ material collected, including for instance results | each for every 20 samples. | ||
| for field duplicate/second-half sampling. | |||
| • Whether sample sizes are appropriate to the grain size of the | |||
| _material being sampled. _ | |||
| Quality of assay data | • The nature, quality and appropriateness of the assaying and |
• | The analytical method employed will be XRF. The technique is industry |
| and laboratory tests | laboratory procedures used and whether the technique is | standard and considered appropriate. | |
| considered partial or total. | • | The analytical method employed for an earlier drill program in 2017 was ICP- | |
| • For geophysical tools, spectrometers, handheld XRF | MS which is also considered industry standard and appropriate as well. | ||
| instruments, etc, the parameters used in determining the | • | Downhole gamma tools were used as explained under ‘Sampling techniques’. | |
| analysis including instrument make and model, reading | This is the principal evaluating technique. | ||
| times, calibrations factors applied and their derivation, etc. | |||
| • Nature of quality control procedures adopted (e.g. standards, | |||
| blanks, duplicates, external laboratory checks) and whether | |||
| acceptable levels of accuracy (i.e. lack of bias) and precision | |||
| _have been established. _ | |||
| Verification of | • The verification of significant intersections by either | • | Geology was directly recorded into a tablet in the field and sample tag books |
| sampling and | independent or alternative company personnel. | filed in at the drill site. | |
| assaying | • The use of twinned holes. | • | The drill data of those logs and tag books (lithology, sample specifications etc.) |
| • Documentation of primary data, data entry procedures, data | were transferred by designated personnel into a geological database. | ||
| verification, data storage (physical and electronic) protocols. | • | Equivalent eU3O8values have previously been and were for the current | |
| • _Discuss any adjustment to assay data. _ | program calculated from rawgamma files byapplyingcalibration factors and |
Page 16 of 21
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| casing factors where applicable. | |||
| • | The adjustment factors were stored in the database. | ||
| • | Equivalent U3O8data were composited to 1m intervals. | ||
| • | The ratio of eU3O8vs assayed U3O8for matching composites will be used to | ||
| quantify the statistical error. | |||
| Location of data | • Accuracy and quality of surveys used to locate drill holes | • | The collars are being surveyed by in-house operators using a differential GPS. |
| points | (collar and down-hole surveys), trenches, mine workings and | • | All drill holes are vertical and shallow; therefore, no down-hole surveying was |
| other locations used in Mineral Resource estimation. | required. | ||
| • Specification of the grid system used. | • | The grid system is World Geodetic System (WGS) 1984, Zone 33. | |
| • Quality and adequacy of topographic control. | |||
| Data spacing and | • Data spacing for reporting of Exploration Results. | • | The data spacing and distribution is optimized along channel direction along |
| distribution | • Whether the data spacing and distribution is sufficient to | North-South or East West lines. Where the drilling program was exploratory in | |
| establish the degree of geological and grade continuity | nature and drill hole spacing varied at 100 to 200m along 200 to 800m spaced | ||
| appropriate for the Mineral Resource and Ore Reserve | lines. At Tumas 1 East the resource drilling varies between 50m to 100m drill | ||
| estimation procedure(s) and classifications applied. | hole spacing along 200m spaced lines. | ||
| • Whether sample compositing has been applied. | • | The 100m by 200m drill hole spacing is considered sufficient to define an | |
| inferred resource At Tumas East in the future. | |||
| • | The total gamma count data, which is recorded at 5 cm intervals, was used to | ||
| calculate equivalent uranium values (eU3O8) which were composited to 1 m | |||
| composites down hole. | |||
| Orientation of data in | • Whether the orientation of sampling achieves unbiased |
• | Uranium mineralisation is strata bound and distributed in fairly continuous |
| relation to geological | sampling of possible structures and the extent to which this is | horizontal layers. Holes are being drilled vertically and mineralised intercepts | |
| structure | known, considering the deposit type. | represent the true width. | |
| • If the relationship between the drilling orientation and the | • | All holes were sampled down-hole from surface. Geochemical samples are | |
| orientation of key mineralised structures is considered to | being collected at 1 m intervals. Total-gamma count data is being collected at | ||
| have introduced a sampling bias, this should be assessed | 5 cm intervals. | ||
| and reported if material. | |||
| Sample security | • The measures taken to ensure sample security. | • | 1m RC drill chip samples were prepared at the drill site. The assay samples |
| were stored in plastic bags. Sample tags were placed inside the bags. The | |||
| samples were placed into plastic crates and transported from the drill site to | |||
| RMR’s site premises in Swakopmund by company personnel, prior to analyses | |||
| and from there to the external laboratories. | |||
| • | Upon completion of the assay work the remainder of the drill chip sample bags | ||
| foreach holewillbe packed back into crates and thenstoredindesignated |
Page 17 of 21
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | • | Commentary |
|---|---|---|---|
| containers in chronological order, locked up and kept safe at RMR’s dedicated | |||
| sample storage yard at Rocky Point located outside Swakopmund. | |||
| Audits or reviews | • The results of any audits or reviews of sampling techniques | • | D. M. Barrett (PhD MAIG) conducted an audit of gross count gamma logging |
| and data. | procedures and log reduction methods used by Deep Yellow Limited. | ||
| • | He concludes his audit commenting: “In summary, it is my belief that the | ||
| equivalent uranium grades reported by Reptile from their gamma logging | |||
| program are reliable and are probably within a few percent to the true grade”. |
Page 18 of 21
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Mineral tenement and land | • Type, reference name/number, location and | • | The work to which the Exploration Results relate was undertaken on exclusive |
| tenure status | ownership including agreements or material issues | prospecting grant EPL3497. | |
| with third parties such as joint ventures, partnerships, | • |
The EPL was originally granted to Reptile Uranium Namibia (Pty) Ltd (RUN) in | |
| overriding royalties, native title interests, historical | 2006. The EPL is in good standing and is valid until 05 June 2021. . | ||
| sites, wilderness or national park and environmental | • | The EPL is located within the Namib Naukluft-National Park in Namibia. | |
| settings. | • | The EPL is subject to an agreement with a Namibian partner whereby the | |
| • The security of the tenure held at the time of | partner has the right to acquire 5% of the project for historical costs. | ||
| reporting along with any known impediments to | • | There are no known impediments to the project beyond Namibia’s standard | |
| obtaining a licence to operate in the area. | permitting procedures. | ||
| Exploration done by other | • Acknowledgment and appraisal of exploration by | • | Prior to RUN’s ownership of this EPL, extensive work was conducted by Anglo |
| parties | other parties. | American Prospecting Services (AAPS), General Mining and Falconbridge in | |
| the 1970s. | |||
| • | Assay results from the historical drilling are available to RUN on paper logs. | ||
| They were not captured digitally and were and will not be used for resource | |||
| estimation. | |||
| Geology | • Deposit type, geological setting and style of | • | Tumas 1 East mineralisation occurs as secondary carnotite enrichment of |
| mineralisation. | variably calcretised palaeochannel and sheet wash sediments and adjacent | ||
| weathered bedrock. | |||
| • | Uranium mineralisation at Tumas is surficial, stratabound and hosted by | ||
| Cenozoic and possibly Tertiary sediments, which include from top to bottom | |||
| scree sand, gypcrete, calcareous sand and calcrete. | |||
| • | The majority of the mineralisation is hosted in calcrete. Locally, the underlying | ||
| weathered Proterozoic bedrock is occasionally also mineralised. | |||
| Drill hole Information | • A summary of all information material to the | • | 118 holes for a total of 895m have been drilled in the current program up to the |
| understanding of the exploration results including a | 16 August 2019. | ||
| tabulation of the following information for all Material | • | All holes were drilled vertically and intersections measured present true | |
| drill holes: | thicknesses. | ||
o easting and northing of the drill hole collar |
• | The Table 2 in Appendix 1 lists all the drill hole locations. Table 1 list the results | |
o elevation or RL (Reduced Level – elevation above |
of intersections greater than 100ppm eU3O8over 1m. | ||
| sea level in metres) of the drill hole collar | |||
o dip and azimuth of the hole |
Page 19 of 21
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
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 aggregation methods | • In reporting Exploration Results, weighting averaging | •5cm intervals of down hole gamma counts per second (cps) logged inside the |
| techniques, maximum and/or minimum grade | drill rods were composited into 1m down hole intervals showing greater than | |
| truncations (e.g. cutting of high grades) and cut-off | 100cps values over 1m. | |
| grades are usually Material and should be stated. | •No grade truncations were applied. | |
| • 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. _ | ||
| Relationship between | • These relationships are particularly important in the | •The mineralisation is sub-horizontal and all drilling vertical, therefore, |
| mineralisation widths and | reporting of Exploration Results. | mineralised intercepts are considered to represent true widths. |
| intercept lengths | • 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’). _ | ||
| Diagrams | • Appropriate maps and sections (with scales) and | •Appendix 1 (Table 2) shows all drill hole locations. Table 1 lists the anomalous |
| tabulations of intercepts should be included for any | intervals. | |
| significant discovery being reported These should | •Maps and sections are included in the text. | |
| include, but not be limited to a plan view of drill hole | ||
| _collar locations and appropriate sectional views. _ | ||
| Balanced reporting | • Where comprehensive reporting of all Exploration | •Comprehensive reporting of all Exploration Results was practised on the |
| Results is not practicable, representative reporting of | completion of the drilling program. | |
| both low and high grades and/or widths should be | ||
| practiced to avoid misleading reporting of Exploration | ||
| _Results. _ |
Page 20 of 21
APPENDIX 2: Table 1 Report (JORC Code 2012 addition) (continued)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Other substantive | • Other exploration data, if meaningful and material, | •The wider area and Tumas deposits were subject to extensive drilling in the |
| exploration data | should be reported including (but not limited to): | 1970s and 1980s by Anglo American Prospecting Services, Falconbridge and |
| geological observations; geophysical survey results; | General Mining. | |
| geochemical survey results; bulk samples – size and | •An airborne EM survey conducted in 2009 better defined the broad | |
| method of treatment; metallurgical test results; bulk | palaeochannel system. | |
| density, groundwater, geotechnical and rock | •Downhole gamma-gamma density logging for bulk density was conducted by | |
| characteristics; potential deleterious or contaminating | Terratec on the Tumas 1 and 2 resources. |
|
| _substances. _ | ||
| Further work | • The nature and scale of planned further work (e.g. | •Further drilling work is planned in the Tumas 3 East and West areas and at |
| tests for lateral extensions or depth extensions or | Tumas Central west of the currently defined Tumas 3 Resource and its | |
| large-scale step-out drilling). | extensions. | |
| • Diagrams clearly highlighting the areas of possible | •Infill drilling for resource estimation work is planned as well. | |
| extensions, including the main geological | ||
| interpretations and future drilling areas, provided this | ||
| _information is not commercially sensitive. _ |
Page 21 of 21