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22.06.2020
Sovereign Metals: Further Exceptional Rutile Drilling Results Expand Kasiya

22 June 2020 – Sovereign Metals Limited (“the Company” or “Sovereign”) is pleased to report further exceptional drilling results from Kasiya, the Company’s large, high-grade rutile deposit located in Malawi. The results continue to grow the mineralised footprint and show increased areas of very high-grade rutile from surface. These results will be incorporated into a maiden JORC Mineral Resource Estimate due in late Q3, 2020.

 

HIGHLIGHTS

 

-          Phase 4 drilling results demonstrate high-grade rutile in the south-east area of the mineralised envelope, with key results from a total of 17 holes:

-          14m @ 1.24% rutile inc. 4m @ 1.95% rutile from surface

-          13m @ 1.13% rutile inc. 4m @ 1.86% rutile from surface

-            9m @ 1.00% rutile inc. 4m @ 1.46% rutile from surface

-          12m @ 1.23% rutile inc. 3m @ 1.43% rutile from surface

-          12m @ 1.07% rutile inc. 8m @ 1.26% rutile from surface

-          Exceptionally high rutile grades from surface substantially enhance the economic potential of Kasiya

-          A significant number of rutile drill intercepts remain open at depth where mineralisation is interpreted to extend to the base of the soft saprolite estimated at approximately 25m vertical

-          The mineralised zone is now +5.5km strike length with surface widths up to 3km and continues to be open along strike and laterally to the east

-          QEMSCAN mineralogy analysis shows excellent rutile liberation and particle size distribution with d50 averaging 129µm – comparable or better than other leading natural rutile products

-          Maiden JORC Mineral Resource Estimate remains on track for late Q3 2020

 

Sovereign’s Managing Director Dr Julian Stephens commented:

“The drilling results from Kasiya continue to be exceptional. The footprint of high-grade rutile mineralisation continues to expand and displays what we believe to be some of the highest-grade, thickest and spatially expansive rutile drill-intercepts globally. New QEMSCAN mineralogy results show that rutile is very well liberated with excellent sizing characteristics suggesting it should be suitable for all major end-use markets. Kasiya is emerging as a truly special discovery within the Company’s broader licence package where we have identified a new, potentially globally significant rutile province.”

 

Figure 1. Kasiya drill plan showing extents of rutile mineralisation with the new extended areas defined by the Phase 4 drill-holes. Pending holes are also shown.

 

KASIYA EXTENSIONAL DRILL PROGRAM – PHASE 4

Results for Phase 4 drilling comprise a further 17 hand-auger holes for 175m over four drill-lines. This brings the total number of holes reported to 79 (Phases 1 through 4 combined).

 

The Phase 4 results show high-grade and thick rutile drill intercepts as predicted by the Company’s now refined geological exploration targeting model. Importantly, the highest-grade intercepts are almost always from surface. The mineralised footprint continues to grow and take on definition at +5.5km strike length with surface widths up to 3km. The results reported also show the high-grade envelope bifurcates into two zones toward the southern extent of reported drilling. The mineralised envelope continues to be open in both directions along strike and laterally to the east.

 

High-grade rutile has been encountered as deep as 14m below surface in some holes (the depth limit of hand-auger drilling) but generally has an average thickness of approximately 7m to 8m. The current geological interpretation is that high-grade, free-dig rutile mineralisation is likely to continue vertically to the base of saprolite in the areas where holes terminated in mineralisation. This depth of mineralised saprolite can be reasonably assumed from existing geological knowledge to be around 25m from surface. However, deeper drilling techniques such as air-core, diamond-core or sonic will need to be employed to confirm this at Kasiya.

 

Key Phase 4 drilling results received from the total of 17 holes include:

-          14m @ 1.24% rutile inc. 4m @ 1.95% rutile from surface

-          13m @ 1.13% rutile inc. 4m @ 1.86% rutile from surface

-          9m @ 1.00% rutile inc. 4m @ 1.46% rutile from surface

-          12m @ 1.23% rutile inc. 3m @ 1.43% rutile from surface

-          12m @ 1.07% rutile inc. 8m @ 1.26% rutile from surface

 

Figure 2. Cross section 8479200mN showing the broad, high-grade mineralisation with multiple holes open at depth.

 

KASIYA EXCELLENT PARTICLE SIZE DISTRIBUTION

QEMSCAN mineralogy analysis on the non-magnetic fraction of heavy mineral concentrates (HMCs) from routine drill samples in the 45µm to 600µm fraction show clean and well liberated rutile grains with a particle size distribution d50 averaging 129µm. This is comparable or better than other leading natural rutile products in the market.

 

Particle size distribution is an important consideration for end-users of natural rutile since it influences efficiency and performance in downstream applications. The favourable particle size distribution of rutile from Sovereign’s Kasiya deposit demonstrates the potential to produce commercial rutile specifications suitable for all three major rutile end-use markets including pigment, titanium metal and welding flux.

 

Table 1: Comparison of Sovereign’s Kasiya rutile d50 to leading global producers

 

Kasiya

(Sovereign Metals)

RBM

(Rio Tinto)

Namakwa Sands

(Tronox)

d50

129µm

124µm

124µm

“Rio Tinto” is Rio Tinto plc; “Tronox” is Tronox Holdings plc.

Source: BGR Assessment Manual titled “Heavy Minerals of Economic Importance” 2010.

 

FORWARD PLAN

 

Sovereign has identified a potentially globally significant rutile deposit at Kasiya in Malawi. Rutile mineralisation identified to date has generally not been spatially constrained by drilling and the potential is thought to be immense.

 

Sovereign’s ongoing rutile work programs for Kasiya and its other rutile prospects within the Malawi Rutile Province include;

 

-         Step-out and regional drilling at Kasiya and the broader surrounding area to identify extensions and satellite mineralised zones

-         Work toward the maiden JORC Resource Estimate for Kasiya which is on target for late Q3 2020

-         Bulk-scale metallurgical test-work is well underway on a 1 tonne representative sample from Kasiya

-         Push-tube drilling at Kasiya to twin hand-auger holes and to obtain cored samples for specific gravity (SG) determination and initial geotechnical analysis

-         Mining and tailings studies are ongoing in order to feed in to a future Scoping Study

-         A regional desktop targeting exercise using all available knowledge and datasets is continuing with the goal of discovering more high-grade, Kasiya-like rutile mineralisation further afield

 

Figure 3. Drill plan showing Phases 1, 2, 3 and 4 of reported and pending shallow hand-auger holes at Kasiya.

 

COVID-19 UPDATE

 

Drilling and sample preparation activities have recommenced on a limited basis with a reduced and safe personnel level.

 

The Company is actively evaluating the situation for all risks to employees, communities and general operational safety and will make any required adjustments as the situation evolves, or as required by the Government of Malawi.

 

Figure 4. Map of the broader Kasiya and Bua Channel area showing the multiple targets discovered.

 

DRILL RESULTS

Shallow drilling results from Phase 4 at Kasiya are shown below in Table 2.

Hole ID

Interval Thickness

Rutile %

From (m) Downhole

Comments

KYHA0096

11m

0.93

surface

open at depth

incl

9m

1.00

surface

 

incl

4m

1.46

surface

 

KYHA0097

12m

1.23

surface

open at depth

incl

3m

1.43

surface

 

KYHA0098

13m

1.13

surface

open at depth

incl

8m

1.30

surface

 

incl

4m

1.86

surface

 

KYHA0099

No significant results

KYHA0100

6m

0.90

surface

 

incl

2m

1.67

surface

 

KYHA0101

3m

0.79

surface

 

KYHA0102

4m

1.05

surface

 

incl

2m

1.51

surface

 

KYHA0103

4m

1.13

surface

 

KYHA0104

12m

1.07

surface

open at depth

incl

8m

1.26

surface

 

KYHA0105

14m

0.77

surface

open at depth

incl

6m

1.05

from 8m

 

incl

2m

1.24

from 8m

 

KYHA0106

8m

0.72

surface

open at depth

incl

2m

1.04

from 6m

 

KYHA0107

No significant results

KYHA0108

4m

0.56

surface

 

KYHA0109

No significant results

KYHA0110

9m

0.72

surface

open at depth

KYHA0111

14m

1.24

surface

open at depth

incl

8m

1.48

surface

 

incl

4m

1.95

surface

 

KYHA0112

4m

1.10

surface

 

*Significant results are reported at 0.5% rutile lower cut-off.

 

Sovereign Metals Limited | ASX : SVM

Enquires: Julian Stephens/Sam Cordin (Perth): +61 8 9322 6322  |  Sapan Ghai (London): +44 207 478 3900

Email: info@sovereignmetals.com.au

www.sovereignmetals.com.au

Level 9, 28 The Esplanade, PERTH WA 6000 | ABN: 71 120 833 427

 

Competent Persons’ Statements

The information in this report that relates to Exploration Results and QEMSCAN Results are based on information compiled by Dr Julian Stephens, a Competent Person who is a member of the Australian Institute of Geoscientists (AIG). Dr Stephens is the Managing Director of Sovereign Metals Limited and a holder of ordinary shares and unlisted options in Sovereign Metals Limited. Dr Stephens has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being 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'. Dr Stephens consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

 

Forward Looking Statement

This release may include forward-looking statements, which may be identified by words such as "expects", "anticipates", "believes", "projects", "plans", and similar expressions. These forward-looking statements are based on Sovereign’s expectations and beliefs concerning future events. Forward looking statements are necessarily subject to risks, uncertainties and other factors, many of which are outside the control of Sovereign, which could cause actual results to differ materially from such statements. There can be no assurance that forward-looking statements will prove to be correct.  Sovereign makes no undertaking to subsequently update or revise the forward-looking statements made in this release, to reflect the circumstances or events after the date of that release.

 

This ASX Announcement has been approved and authorised for release by the Company’s Managing Director, Julian Stephens.

 

APPENDIX 1: DRILL HOLE DATA

Hole ID

East

North

RL

Depth

(m)

KYHA0096

540799

8479196

1109

11

KYHA0097

541201

8479202

1115

12

KYHA0098

541600

8479206

1118

13

KYHA0099

542000

8479196

1116

9

KYHA0100

542398

8479204

1114

11

KYHA0101

540002

8478799

1082

7

KYHA0102

540390

8478801

1099

11

KYHA0103

538399

8477997

1074

13

KYHA0104

538798

8477998

1080

12

KYHA0105

539192

8477995

1081

14

KYHA0106

539650

8477992

1068

8

KYHA0107

539658

8478199

1065

3

KYHA0108

539996

8478219

1078

6

KYHA0109

540400

8478201

1091

8

KYHA0110

540798

8478202

1099

9

KYHA0111

541199

8478202

1108

14

KYHA0112

541599

8478203

1106

14

* All holes were vertical.



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