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Zulu Assay Results and Update

9 Jan 2024 07:00

RNS Number : 0747Z
Premier African Minerals Limited
09 January 2024
 

9 January 2024

Premier African Minerals Limited

 

Zulu Assay Results and Update

 

Premier African Minerals Limited ("Premier" or the "Company"), is pleased to report an update including assay results at Premier's Zulu Lithium and Tantalum Project ("Zulu"). These results include both surface trenches and drill holes located within the area of the mineral claims block but outside of the existing mining operations and pit development.

George Roach, CEO commented, "Those surface trench and drill hole results originating from the Southeast pegmatite, represent very good potential for this pegmatite that is adjacent but discrete from the main mining and pit developments underway at present. More important is that geological logging indicates that the lithium mineralisation in this pegmatite is almost exclusively spodumene. For reference purposes, a grade of 1% Li2O when the mineralisation is all spodumene, is the equivalent of 12.5% of the ore body being made up of the mineral spodumene. Test work in our laboratory at Zulu has consistently confirmed that Zulu is able to produce SC6 at acceptable grades from a contained spodumene content in the ore body as low as 4%, representing a potential economic cut-off grade as low as 0.37% Li2O when the contained mineral is spodumene.

 

By way of general update, civils associated with the thickener and new mill installation are substantially complete and first materials are now at site with further loads on route. The new mill is expected to be the last component to be positioned at Zulu late in January 2024 with anticipated restart of operations as early in February as possible and the Board believes as previously reported that the Company is still on track to target revenue generating production by late-February 2024.

 

Mining operations are now well developed, and we anticipate no issues associated with ore delivery to Run of Mine pad in future. Whilst mining operations are a major cash cost at present, the future benefit when operations are underway at much reduced stripping ratios will more than offset this cost in the future.

 

Preliminary indications from the Company's internal budget (which has not been independently verified) at this time model an average mine gate cost of the order of $800 per ton for SC6 for the first 12 months, and which discounts any technical grade spodumene produced and sold and any sale of any lepidolite and other mica-rich concentrates or future tantalum production."

 

Drill Holes: Lithium & Tantalum Results

The table below sets out the composites determined, as per the outlined compositing routine in the text below the table, from analyses received from the independent external laboratory (SGS) for surface trenches ZT012, ZT016, ZT017, ZT018, ZT020, ZT022, ZT025, ZT026, ZT027 and core drill holes ZDD156, ZDD160 and ZDD161. Of the trench results, ZT025, ZT026 and ZT027 together with all the drill holes are from the Southeast pegmatite that is located approximately 350 meters southeast of current pit developments.

Table 1 -Assay Summary Results

Hole

From (m)

To (m

Width* (m)

Li2O%

Ta2O5 ppm

Rb ppm

Surface Trenches

 

 

 

ZT012

47.03

 

53.70

 

6.67

 

1.00

 

49

 

3909

 

Incl.

 

48.86

 

50.36

 

1.50

 

1.70

 

18

 

2404

 

ZT016

 

28.31

 

33.80

 

5.49

 

0.95

 

81

 

4690

 

ZT017

 

9.70

 

17.20

 

7.50

 

0.56

 

87

 

3561

 

ZT018

 

17.10

 

21.80

 

4.70

 

0.66

 

125

 

3875

 

ZT020

 

37.30

 

39.30

 

2.00

 

0.94

 

79

 

5301

 

ZT022

 

4.40

 

12.45

 

8.05

 

0.87

 

49

 

1154

 

Incl.

5.40

 

9.40

 

4.00

 

1.38

 

58

 

1356

 

ZT022

 

14.30

 

20.80

 

6.50

 

0.89

 

45

 

1374

 

Incl.

18.30

 

19.30

 

1.00

 

1.61

 

38

 

634

 

ZT022

 

41.70

 

43.70

 

2.00

 

0.70

 

74

 

2563

 

ZT025

 

0.00

 

5.00

 

5.00

 

1.81

 

49

 

1029

 

ZT026

 

0.00

 

7.50

 

7.50

 

1.40

 

52

 

1116

 

Incl.

5.50

 

7.50

 

2.00

 

2.30

 

45

 

648

 

ZT027

 

0.00

 

3.00

 

3.00

 

1.15

 

37

 

1058

 

Incl.

1.00

 

2.00

 

1.00

 

2.30

 

22

 

1020

 

Drill holes

 

 

ZDD156

294.30

296.3

2.00

0.78

 

91

 

2697

 

ZDD160

154.56

 

187.00

 

32.44

 

1.08

 

63

 

1265

 

Incl.

159.91

 

161.91

 

2.00

 

1.77

 

67

 

1035

 

Incl.

164.8

165.80

 

1.00

1.89

 

106

 

718

 

Incl.

166.80

 

167.80

 

1.00

1.63

 

41

 

1009

 

Incl.

173.98

 

175.98

 

2.00

1.60

 

38

 

969

 

Incl.

183.98

 

184.98

 

1.00

1.80

 

56

 

1596

 

ZDD161

 

165.73

 

174.08

 

8.35

 

1.53

 

54

 

1287

 

Incl.

167.73

 

168.80

 

1.07

2.31

 

41

 

979

 

 

 

 

 

 

 

 

Incl.

169.80

 

170.80

 

1.00

2.37

 

37

 

836

 

ZDD161

 

180.46

 

186.00

 

5.54

 

1.06

 

97

 

997

 

Incl.

180.46

 

180.46

 

2.00

 

2.14

 

98

 

892

 

*Not True Width but drilled width

**0.50% Li2O cut-off applied.

The following compositing routine has been applied:

·

0.50% Li2O cut-off was applied to the pegmatitic intersections only.

·

0.5% Li2O are not reported.

·

Within any composite of >2m thickness, high-grade intersections of 1m and greater are reported provided the high-grade intersection is a multiple of x 1.5 of the overall weighted composite grade, and

·

Within any composite, inclusions of country rock of 2O.

 

The following Table 3 sets out the drill hole collar coordinates for the drill holes reported in Table 1 above:

Table 2 - Drill Holes/Trench Collar Coordinates - This RNS

Dhole

UTM 35S*

Easting

UTM 35S*

Northing

Elevation (AMSL)

Azimuth TN (°)

Collar Dip

(°)

EOH/Trench length

(m)

ZT012

751199.571

7782684.17

1326.97

290

0

80.5

ZT016

751145.295

7782608.551

1321.542

290

0

70

ZT017

751130.097

7782555.182

1319.398

290

0

40.5

ZT018

751121.216

7782503.35

1314.89

290

0

29

ZT020

751102.666

7782450.664

1311.78

290

0

100

ZT022

751400.394

7782157.056

1310.307

225

0

86

ZT025

751392.43

7782146.19

1310.207

216.47

0

5

ZT026

751401.075

7782144.871

1310.218

210.51

0

7.5

ZT027

751409.526

7782139.956

1309.893

207.54

0

3

ZDD156

751483.703

7782138.713

1312.707

218.7

-59.84

325.89

ZDD160

751480.699

7782205.707

1312.555

226.26

-49.84

300.35

ZDD161

751415.084

7782206.843

1310.687

217.76

-59.86

282.33

* ARC1950 Datum (10m local datum shift)

Table 3 - Drilling & Trenching Progress

A summary of the number of drill holes & trenches completed both prior to and for the ongoing Mineral Resource Estimate:

PROGRAMME

No of Drill Holes

Drill Metres (m)

No of Surface Trenches

Trenched Metres (m)

RST (1958)

7

903.90

ZULU - Initial Exploration

6

2,312.90

ZULU - PEA

43

5,809.10

ZULU - Pilot Plant /MRE

143

34,100.16

33

2,534.76

ZULU - MRE (in progress)

0

0

Table 4 - Analytical Pipeline

A summary of the status of drill core & trench analyses is set out below:

Results received to date (excluding QA/QC samples)

9,837

# QA/QC samples analysed - blanks, duplicates & CRMs

1,479*

Sample pulps at SGS Randfontein awaiting analysis

350

Sample pulps ready to be shipped to SGS

635

Ongoing sampling of drill cores/trench samples at site**

0

**Estimate

*QA/QC samples = 15% of total

 

Quality Assurance/Quality Control (QA/QC)

The drill holes are initially sited using a hand-held GPS (Global Positioning System device) within the tenement areas. Accurate coordinates and elevations of drill holes collars are subsequently derived from a DGPS (Differential Global Position devices) survey upon completion of the drill hole.

Drill cores are geologically logged, intersections of interest are selected are marked-up with unique sample ID assigned before splitting and sampling. Cores are cut in half using a core cutter, individual samples bagged, and sent for analysis.

Alternating Certified Refence Materials (CRM), blank or duplicate samples are inserted every 10th sample into the sample stream sent to the laboratory to ensure QA/QC compliance. These QA/QC samples are assessed upon receipt of analyses, checked and, if acceptable, accepted into the analytical database. Follow-up with the laboratory is instigated in cases were any QA/QC sample fails the QA/QC parameters.

Currently, drill core samples are crushed and pulverised at the Antec Laboratory, Zimbabwe to 85% passing -75 microns. Sample pulps are couriered to the SGS Laboratory Services in Randfontein, South Africa where pulps are fused with sodium peroxide and analysed by ICP-OES and ICP-MS to report 51-elements. (SGS code ICP90A50 & IMS90A50).

The Geology of Zulu

The area, located in the Fort Rixon Greenstone Belt, is underlain by Archaean-aged meta-volcanics and meta-sedimentary sequences of the Bulawayan Supergroup, with serpentinites and banded iron formations at the base in the east and metamorphosed volcano-sedimentary sequences to the west. The greenstone belt is tear drop shaped measuring 30 km long and 19 km wide near the broad section at the top. Metamorphism is retrograded to Greenschist facies.

The Zulu Pegmatite is a LCT (Lithium-Caesium-Tantalum) pegmatite swarm which intrudes along the contacts between serpentine and metamorphosed volcano-sedimentary sequences over a strike length of several kilometres. Outcrop widths vary between 10 and 50m. The pegmatite bodies strike N20° and dip 70° to 90° to the west.

The area was first pegged in 1955 by J.S. Willemse and intensely explored, under option, by mapping, trenching and drilling by Rhodesian Selection Trust Co. Ltd. ("RST") in 1958. In 1961 and 1962 a small quantity of petalite from the River Pegmatites (see below) was mined by W. Burchett in partnership with J.S. Willemse. Premier later acquired the claims in 2013.

Mapping and logging of drill cores within some pegmatites semi-quantitative powder X-Ray Diffraction (XRD)a has identified three distinct pegmatite classes in the Mineral claims block. Spodumene-rich, thick pegmatites named the Main Zone, South Pegmatite and SE Zone which are located north, south and SE of the Machakwe River; footwall low-spodumene pegmatites with associated tantalum and rubidium; and a suite of petalite-bearing pegmatites of short strike length, named the River Pegmatites.

In general, the lithium minerals, occurring in varying quantities, are coarse grained with associated feldspars and quartz with only very minor sulphides being observed. In several contact zones, the lithium-bearing amphibole, holmquistite, has been observed.

Qualified Person

Bruce Cumming, geologist with Premier, has reviewed and approved this release to the extent that reference is made to the geology of the Zulu pegmatites. Mr. Cumming is a SACNASP and GSSA registered geoscientist with 48 years' experience in exploration and project management, in multicommodity projects throughout Africa.

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018.

The person who arranged the release of this announcement on behalf of the Company was George Roach.

Enquiries:

 

George Roach

Premier African Minerals Limited

Tel: +27 (0) 100 201 281

Michael Cornish / Roland Cornish

Beaumont Cornish Limited

(Nominated Adviser)

Tel: +44 (0) 20 7628 3396

Douglas Crippen

CMC Markets UK Plc

Tel: +44 (0) 20 3003 8632

Toby Gibbs/Rachel Goldstein

Shore Capital Stockbrokers Limited

Tel: +44 (0) 20 7408 4090

 

Beaumont Cornish Limited ("Beaumont Cornish") is the Company's Nominated Adviser and is authorised and regulated by the FCA. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other persons for providing protections afforded to customers of Beaumont Cornish nor for advising them in relation to the proposed arrangements described in this announcement or any matter referred to in it.

 

Forward Looking Statements:

Certain statements in this announcement are or may be deemed to be forward looking statements. Forward looking statements are identi?ed by their use of terms and phrases such as ''believe'' ''could'' "should" ''envisage'' ''estimate'' ''intend'' ''may'' ''plan'' ''will'' or the negative of those variations or comparable expressions including references to assumptions. These forward-looking statements are not based on historical facts but rather on the Directors' current expectations and assumptions regarding the Company's future growth results of operations performance future capital and other expenditures (including the amount, nature and sources of funding thereof) competitive advantages business prospects and opportunities. Such forward looking statements re?ect the Directors' current beliefs and assumptions and are based on information currently available to the Directors. A number of factors could cause actual results to differ materially from the results discussed in the forward-looking statements including risks associated with vulnerability to general economic and business conditions competition environmental and other regulatory changes actions by governmental authorities the availability of capital markets reliance on key personnel uninsured and underinsured losses and other factors many of which are beyond the control of the Company. Although any forward-looking statements contained in this announcement are based upon what the Directors believe to be reasonable assumptions. The Company cannot assure investors that actual results will be consistent with such forward looking statements.

 

Notes to Editors:

Premier African Minerals Limited (AIM: PREM) is a multi-commodity mining and natural resource development company focused on Southern Africa with its RHA Tungsten and Zulu Lithium projects in Zimbabwe.

 

The Company has a diverse portfolio of projects, which include tungsten, rare earth elements, lithium and tantalum in Zimbabwe and lithium and gold in Mozambique, encompassing brownfield projects with near-term production potential to grass-roots exploration. The Company has accepted a share offer by Vortex Limited ("Vortex") for the exchange of Premier's entire 4.8% interest in Circum Minerals Limited ("Circum"), the owners of the Danakil Potash Project in Ethiopia, for a 13.1% interest in the enlarged share capital of Vortex. Vortex has an interest of 36.7% in Circum.

 

In addition, the Company holds a 19% interest in MN Holdings Limited, the operator of the Otjozondu Manganese Mining Project in Namibia.

Glossary of Technical Terms:

"amphibole"

A class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals.

"Banded Iron Formation (BIF)"

A sedimentary rock consisting of alternating layers of iron oxides and iron-poor chert.

"DFS"

Definitive Feasibility Study.

"Greenschist facies"

The Greenschist facies is at low pressure and temperature. The facies is named for the typical schistose texture of the rocks and green colour of the minerals chlorite, epidote and actinolite.

"feldspar"

An aluminosilicate mineral consisting of potassium, sodium, and calcium.

"Holmquistite"

A lithium-bearing amphibole related to hornblende with a formula as (Na,K,Ca)Li(Mg,Fe)3Al2Si8O22(OH)2.

"ICP-OES"

Inductively coupled plasma-optical emission spectroscopy.

"ICP-MS"

Inductively coupled plasma mass spectrometry.

"Lepidolite"

A pink to lavender coloured lithium bearing mineral (KLi2Al(Si4O10)(F,OH)2).

"Li to Li2O"

x 2.153.

"Li"

Lithium.

"Li2O"

Lithium Oxide (Lithia) - an inorganic lithium compound used to assess lithium minerals.

"m"

Meters.

"meta-sediments"

Sedimentary rocks that have been metamorphosed.

"meta-volcanics"

Volcanic rocks that have been metamorphosed.

"PEA"

Preliminary Economic Study.

"Petalite"

A white coloured lithium bearing mineral (LiAl(Si4O10)).

"ppm"

Parts per million.

"Rb"

Rubidium.

"Run of Mine"

Ore that is mined and ready to be processed

"SC6"

Is a high-purity lithium ore with approximately 6 percent lithium content being produced as a raw material for the subsequent production of lithium-ion batteries for electric vehicles

"serpentinite"

A dark, typically greenish metamorphic rock, consisting of serpentine or related minerals, formed when mafic igneous rocks are altered.

"Spodumene"

A white to pink coloured lithium bearing mineral (LiAlSi2O6) containing up to 8.03% Li2O

"Ta to Ta2O5"

x 1.221.

"Ta"

Tantalum.

"X-Ray Diffraction"

X-ray diffraction (XRD) is a widely used technique to assess the mineral assemblage, crystallinity and structure of rocks, cores etc.

LITHIUM CLASSIFICATION AND CONVERSION FACTORS

Lithium grades are normally presented in percentages or ppm. Grades of deposits are also expressed as lithium compounds in percentages, for example as a percent lithium oxide (Li2O) content. The standard conversion factors are set out in the table below:

Table: Conversion Factors for Lithium Compounds and Minerals

Convert from

 

Convert to Li

Convert to Li2O

Lithium

Li

1.000

2.153

Lithium Oxide

Li2O

0.464

1.000

  Ends

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DRLBLMFTMTTMMAI
Date   Source Headline
12th Apr 20247:00 amRNSAdditional Funding for Zulu
11th Apr 20247:00 amRNSFunding of Zulu Project and Update
10th Apr 202412:00 pmRNSZulu Lithium Plant Update
8th Apr 20244:00 pmRNSResult of AGM
27th Mar 20245:00 pmRNSAGM Link and Shareholder Presentation
20th Mar 20246:00 pmRNSNotice of AGM
13th Mar 202411:00 amRNSZulu Lithium Plant and General Update
29th Feb 20246:00 pmRNSZulu Lithium Plant Update
26th Feb 20241:00 pmRNSZulu Lithium Plant Update
19th Feb 20246:00 pmRNSDirector Loan
15th Feb 20247:00 amRNSFunding of Zulu Project and Update
9th Feb 20247:00 amRNSNew Mineral Resource Statement Zulu
29th Jan 202411:15 amRNSOfftake and Prepayment Agreement
24th Jan 20247:00 amRNSZulu Lithium Update
18th Jan 20249:00 amRNSZulu Lithium Update
9th Jan 20247:00 amRNSZulu Assay Results and Update
11th Dec 202311:20 amRNSFunding of Zulu Project and Update
7th Dec 20233:00 pmRNSZulu Project and Update
20th Nov 20231:20 pmRNSZulu Update
14th Nov 202311:00 amRNSZulu Update
3rd Nov 20232:30 pmRNSZulu and Corporate Update
29th Sep 20237:05 amRNSZulu Lithium Update
29th Sep 20237:00 amRNSInterim Results
21st Sep 20238:00 amRNSZulu Lithium Update
15th Sep 20237:05 amRNSHolding(s) in Company
15th Sep 20237:00 amRNSHolding(s) in Company
11th Sep 20237:00 amRNSApproval of further funding for Zulu Project
1st Sep 20236:00 pmRNSTotal Voting Rights
30th Aug 20237:00 amRNSZulu Lithium Additional Funding
25th Aug 20237:00 amRNSFunding of Zulu Project
23rd Aug 20237:30 amRNSZulu Update
18th Aug 20233:23 pmRNSDirector/PDMR Shareholding
15th Aug 20231:30 pmRNSOfftake and Prepayment Agreement
14th Aug 20237:00 amRNSResult of Meeting
9th Aug 20236:00 pmRNSDirector Loan Update
21st Jul 20237:10 amRNSDirector's Loan
21st Jul 20237:00 amRNSNotice of GM
20th Jul 20237:00 amRNSOfftake and Prepayment Agreement Update
30th Jun 20232:57 pmRNSFinal Results
28th Jun 20234:37 pmRNSOfftake and Prepayment Agreement Update
26th Jun 20235:00 pmRNSResult of AGM
26th Jun 20237:00 amRNSOfftake and Prepayment Agreement Update
9th Jun 20237:00 amRNSNotice of AGM
6th Jun 202311:03 amRNSOfftake and Prepayment Agreement
25th May 20238:30 amRNSZulu Lithium Project Update
19th May 20237:00 amRNSFunding and Appointment of Joint Broker
15th May 20237:00 amRNSFunding of Ongoing Zulu Plant Optimisation
5th May 20235:00 pmRNSCorporate Update
28th Apr 20237:00 amRNSDirector / PDMR shareholding
27th Apr 20231:00 pmRNSZulu Lithium Update

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