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CHILWA MINERALS LTD Capital/Financing Update 2025

May 20, 2025

64651_rns_2025-05-20_44912c2c-f240-4ae8-923d-5b74cd50c958.pdf

Capital/Financing Update

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21 May 2025

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ASX ANNOUNCEMENT

ASX : CHW

MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

KEY POINTS

  • Initial assays(1,208 samples) received from 111 sonic drillholes for 867m drilled at the Mpyupyu Dune deposit.

  • Significant results received include the following:

  • 2.97m at 10.79% THM from surface (MPYSD089), incl. 1.62m at 15.36% THM from surface

  • 2.80m at 17.44% THM from surface (MPYSD090), incl. 0.62m at 19.83% THM from surface

  • 2.53m at 11.03% THM from surface (MPYSD091), incl. 0.87m at 18.55% THM from 1.68m

  • 5.13m at 6.8% THM from surface (MPYSD094), incl. 3.60m at 9.12% THM from surface

  • 7.01m at 8.1% THM from surface (MPYSD105), incl. 2.30m at 17.2% THM from surface

  • 5.0m at 22.04% THM from surface (MPYSD208), incl. 2.0m at 44.22% THM from surface

  • 3.78m at 11.91% THM from surface (MPYSD216), incl. 2.50m at 15.95% THM from surface

  • 3.8m at 8.8% THM from surface (MPYSD218), incl. 0.86m at 15.52% THM from surface

  • High grade mineralisation at Mpyupyu appears to be concentrated in two sub-parallel lobate strandlines, referred to historically as the Mpyupyu Dunes, that strike approximately EastWest. The Dunes are part of the larger Mpyupyu deposit, which has a declared, Inferred Mineral Resource estimate of 19.9Mt at 4.2% THM. The Dune portion of the deposit comprises [email protected]% THM while Mpyupyu Flats comprises [email protected]% THM .

  • TZMI, managing flow sheet studies and mineralogical analysis for the Project, now appointed to commence work on Scoping Study.

Chilwa Mineral’s Managing Director, Cadell Buss, commented:

“We have been eagerly awaiting assays from Mpyupyu Dunes, as the second deposit tested in the current program, especially since the mineralisation was clearly observed at surface and in drill core from the first Mpyupyu Dunes drill holes. These are amongst the best intervals reported to date with very high-grade mineralisation, including 2.0m at 44.22% THM, in hole MPYSD208, from surface indicating the HM potential at Mpyupyu.

“With the upgrades to the Mposa Deposit and resource, owing to the switch from Aircore to Sonic drilling, we have been keen to understand if this would carry over to other deposits within the project. This first set of results from Mpyupyu continues the trend in delivering thicker zones at higher grades, against the historic Inferred Mineral resource.

“In the past weeks drilling has moved to test northern shore deposits, as well as the Bimbi deposit from which assays will be reported in the coming weeks.

ASX Announcement

21 May 2025

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

With faster assay turnaround times at our new primary lab, Light Deep Earth in South Africa, we expect to report new resource estimates, starting with the Mposa deposit, within several weeks.

OVERVIEW

Chilwa Minerals Limited (ASX: CHW) (“ Chilwa ” or “ the “Company ”) is pleased to announce initial heavy mineral sands (“ HMS ”) assays from the sonic drill program at Mpyupyu Dunes. Mpyupyu is one of eleven HMS deposits that comprise the Chilwa Critical Minerals Project in southern Malawi and is the second to be drilled by Chilwa following the completion of the Mposa program.

The Mpyupyu deposit has an existing Inferred Mineral Resource estimate (“ MRE ”) of 19.0Mt at 4.2% THM based on historic Aircore drilling across the larger Mpyupyu deposit, which is comprised of the higher grade Dunes and the lower grade, Flats. The Dune portion of the Mpyupyu deposit comprises 3.5Mt @7.1% THM.

Sonic drilling at Mpyupyu Dunes has been completed over 4km of strike with 359 holes completed to date for 2,716 metres. This announcement covers 111 holes for 867 metres.

Significant results include:

  • 2.97m at 10.79% THM from surface (MPYSD089), incl. 1.62m at 15.36% THM from surface

  • 2.80m at 17.44% THM from surface (MPYSD090), incl. 0.62m at 19.83% THM from surface

  • 2.53m at 11.03% THM from surface (MPYSD091), incl. 0.87m at 18.55% THM from 1.68m

  • 5.13m at 6.8% THM from surface (MPYSD094), incl. 3.60m at 9.12% THM from surface

  • 7.01m at 8.1% THM from surface (MPYSD105), incl. 2.30m at 17.2% THM from surface

  • 5.0m at 22.04% THM from surface (MPYSD208), incl. 2.0m at 44.22% THM from surface

  • 3.78m at 11.91% THM from surface (MPYSD216), incl. 2.50m at 15.95% THM from surface

  • 3.8m at 8.8% THM from surface (MPYSD218), incl. 0.86m at 15.52% THM from surface

SONIC DRILLING OVERVIEW

Drilling was undertaken at Mpypyu Dunes in January and February 2025, with drilling moved to the Bimbi deposit when ground conditions at Mpyupyu became difficult. Mpyupyu (Flats + Dunes, see Figure 1 below) has an existing, total, Inferred MRE of 19.9Mt at 4.2% THM (estimated in 2022 ,based on aircore drilling) and is the second largest deposit of the 11 deposits currently identified around Lake Chilwa.

At the end of March this year, drilling moved to the Bimbi deposit for a period of four weeks before returning to the Mpyupyu deposit (Dune area). The planned drilling for Bimbi and a part of the Mpyupyu Dunes have now been largely completed.

One week of drilling was also undertaken at the Northern Shore Halala Deposit (Inferred Mineral resource of 8.9Mt at 3.7% THM, Table 1 below) to gain information on the mineralisation and deposit style in that area.

www.chilwaminerals.com.au

Page 2 of 24

ASX Announcement

21 May 2025

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

Both sonic drill rigs have now been returned to the Mposa deposit, to commence drilling the Mpyupyu flats area, the Eastern portion of the Mpyupyu deposit.

As per the exploration program outlined in the Company’s IPO documents, Chilwa have successfully undertaken exploration on the deposits currently identified in the Chilwa lease area, using sonic drilling with substantially improved core recovery and preservation of lithological boundaries which allows for more robust geological deposit modelling.

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Figure 1: Drillhole locations at Mpyupyu showing the results included in this release

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

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Figure 2: Cross section A-B (Figure 1), Mpyupyu

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Figure 3: Cross section C-D (Figure 1), Mpyupyu

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Figure 4: Cross section E-F (Figure 1), Mpyupyu

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

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Figure 5: Cross section G-H (Figure 1), Mpyupyu

MINERAL RESOURCE ESTIMATE AND SCOPING STUDY

The Company is planning to undertake a Mineral Resource estimate for the Central Zone deposits , namely Mposa, Mpyupyu, Bimbi and Namasalima in the first half of 2025.

The drillhole spacing of these programs has been designed to provide a high degree of confidence in the mineral resources for these prospects, with the intention that the mineral resources can be modelled for mining scenarios in a Scoping Study, also planned for 2025.

TZMI, who previously authored the 2015 Scoping Study for the deposits on the Westerns shore of Lake Chilwa have been engaged to manage mineralogical and metallurgical test work. This work has now progressed to flow sheet studies which will feed into the Projects Scoping Study, also contracted to TZMI.

If the Scoping Study economics and results are positive, the Company is considering moving directly to the Feasibility Study phase for the Central Zone prospects of the Lake Chilwa Project, while also exploring for further resources on the western and northern lakeshores. Further targets with historic resources, at Nkotamo, Beacon, Namanja West, Bimbi Northeast, as well as Namasalima have yet to be further explored using sonic drilling .

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

Table 1: Significant HM results from Mpyupyu Sonic Drilling (>3% THM)

HOLE ID Depth
From (m)
Depth
To (m)
Intercept Oversize
(%)
Slimes
(%)
MPYSD013 0 1.78 1.73m at 8.69%THM from surface 4.71 30.34
incl 0 0.95 [email protected]% THM from surface 3.87 25.61
MPYSD044 0 1.87 [email protected]% THM from Surface 14.52 23.42
MPYSD040 0 1.98 [email protected]% THM from surface 10.66 38.32
MPYSD040 0.60 1.98 1.33m at 6.24%THM from 0.6m 9.57 34.78
MPYSD089 0 2.97 2.97m at 10.79% THM from surface 1.96 27.92
incl 0 1.62 1.62m at 15.36% THM from surface 2.35 23.91
MPYSD090 0 2.80 2.80m at 17.44% THM from surface 4.70 25.72
incl 0 0.62 0.62m at 19.83% THM from surface 1.25 15.90
MPYSD091 0 2.53 2.53m at 11.03% THM from surface 2.87 28.69
incl 1.68 2.55 incl. 0.87m at 18.55% THM from 1.68m 4.89 20.58
MPYSD094 0 5.13 5.13m at 6.82% THM from surface 7.17 39.51
0 3.6 incl. 3.6m at 9.12% THM from surface 8.63 33.46
MPYSD102 0 0.97 0.97m at 3.75% THM from surface 0.91 41.62686
MPYSD103 0 3.98 3.98m at 5.6% THM from surface 5.68 24.31
0 1 incl. 1.0m at 8.45% THM from surface 7.14 14.23
MPYSD104 0 4.82 4.82m at 6.1% THM from surface 2.41 39.25
incl 0.92m at 14.41% THM from surface 0.93 29.33
MPYSD105 0 7 7.0m at 8.1% THM from surface 2.58 47.07
incl 0 2.3 [email protected]%THM from surface 2.96 34.63
MPYSD106 0 2.95 2.95m at 3.18% THM from surface 4.21 60.33
0 0.55 incl. 0.55m at 32.65% THM from 1.80m 6.66 20.46
MPYSD108 0 4 4.0m at 5.2% THM from surface 7.15 27.29
0 2.39 incl. 2.39m at 6.26% THM from surface 9.49 27.71

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

HOLE ID Depth
From (m)
Depth
To (m)
Intercept Oversize
(%)
Slimes
(%)
MPYSD208 0 5 5.0m at 22.04% THM from surface 3.06 30.17
incl 0 2 2.0m at 44.22% THM from surface 3.38 18.20
MPYSD210 0 1.96 1.96 m at 6.31% THM from surface 4.12 29.59
incl 7 9 2.0 m at 4.25% THM from 7.0m 3.52 59.01
MPYSD216 0 3.78 3.78m at 11.91% THM from surface 2.04 33.95
incl 0 2.5 2.50 m at 15.95% THM from surface 2.55 35.67
MPYSD218 0 3.8 3.8m at 8.8% THM from surface 10.25 21.76
incl 0 0.86 0.86m at 15.52% THM from surface 5.17 19.78558
MPYSD220 0 1.93 1.93m at 1.96% THM from surface 12.34 22.94

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Figure 6: Chilwa Minerals Project

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

AUTHORISATION STATEMENT

This update has been authorised to be given to ASX by the Board of Chilwa Minerals Limited.

For further information contact: For media and broker queries: Cadell Buss Andrew Rowell Managing Director White Noise Communications [email protected] [email protected] T: +61 400 466 226

-ENDS-

JORC 2012 Inferred Mineral Resource Estimate

A Mineral Resource Estimate (MRE) for the Project has been classified and reported in accordance with the JORC code (2012). The Mineral Resource Estimate has been classified as Inferred and at a 1.0 % THM cut-off contains 2.4 Mt of THM. The MRE is allocated across the Project deposits in Table 1 below.

Table 1 Inferred Mineral Resources at 1.0% THM as at 31 July 2022 (Refer IPO Prospectus 5th April 2023)

Deposit Volume
(million
m3)
Tonnes
(million
t)
Dry
Density
(t/m3)
Gangue
(%)
Ilmenite
(%)
Slimes
(%)
THM
(%)
Zircon
(%)
Bimbi 1.5 2.6 1.7 0.7 4.3 15.3 5.3 0.3
Northeast Bimbi 3.6 6.1 1.7 0.3 2.2 15.9 2.7 0.1
Mposa(Main) 11.7 19.4 1.7 0.7 3.2 11.7 4.3 0.4
Mposa(North) 0.6 1.0 1.7 0.3 1.4 8.3 1.9 0.2
Mpyupyu(dune) 2.0 3.5 1.7 1.2 5.7 15.3 7.1 0.2
Mpyupyu(flat) 9.5 16.4 1.7 0.5 2.9 15.4 3.6 0.2
Nkotamo 0.1 0.2 1.5 1.1 3.0 28.3 4.2 0.2
Halala 6.0 8.9 1.5 0.9 2.6 9.8 3.7 0.2
Beacon 0.4 0.6 1.5 0.6 1.8 17.7 2.5 0.1
Namanja West 2.0 2.9 1.5 0.8 2.3 14.7 3.3 0.2
Total 37.5 61.6 1.6 0.7 3.0 13.3 3.9 0.3

▪ Estimates of the Mineral Resource were prepared by AMC Consultants (UK) Limited (AMC).

▪ In situ, dry metric tonnes have been reported using varying densities and slime cut-off per deposit.

▪ Material below 30% slimes for Halala, 20% slimes for Bimbi, Northeast Bimbi and Mpyupyu (dune and flat) and 25% slimes for Mposa Main and Mposa North. All other deposits are a stated using 30% slimes cut-off.

▪ Tonnages and grades have been rounded to reflect the relative uncertainty of the estimates and resultant confidence levels used to classify the estimates. As such, columns may not total.

  • Estimates of the Mineral Resource have been constrained by ultimate pit shells to demonstrate Reasonable Prospects for Eventual Economic Extraction

▪ Estimates are classified as Inferred according to JORC Code.

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

COMPLIANCE STATEMENT

The information in this announcement that relates to Mineral Resource estimates were prepared and first disclosed under JORC Code 2012. The information was extracted from the Company’s previous ASX announcements Project Mineral Resource estimate: 3 July 2023 ‘Prospectus’ (dated 5 April 2023).

The announcement is available to view on the Company’s website https://www.chilwaminerals.com.au/. The Company confirms that it is not aware of any new information or data that materially affects the information included in the original announcements, and, in the case of reporting of Ore Reserves and Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcements continue to apply and have not materially changed. The Company confirms that the form and context in which any Competent Person’s findings are presented have not been materially modified from the original market announcement.

Forward Looking Statements and Important Notice

This announcement may contain some references to forecasts, estimates, assumptions and other forward-looking statements. Although Chilwa believes that its expectations, estimates and forecast outcomes are based on reasonable assumptions, it can give no assurance that they will be achieved where matter lay beyond the control of Chilwa and its Officers. Forward looking statements may be affected by a variety of variables and changes in underlying assumptions that are subject to risk factors associated with the nature of the business, which could cause actual results to differ materially from those expressed herein.

Competent Person Statement

The information in this report that relates to the Mposa drilling exploration results estimate is based on, and fairly represents, information and supporting documentation prepared by Mr Mark Jason Burnett, who is a Fellow of the Geological Society of London and a Chartered Geologist. Mr Burnett is an employee of AMC Consultants (UK) Limited and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration 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 Burnett confirms there is no potential for a conflict of interest in acting as a Competent Person and has provided his prior written consent to the inclusion in the report of the matters based on his information in the form and context in which it appears.

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

APPENDIX A – DRILLHOLE COLLAR INFORMATION (MPYUPYU)

Hole Number X Y Z Azimuth EOH Batch
MPYSD001 771728.19 8296627.68 637.2 -90 8.0 8
MPYSD002 771750.68 8296645.29 637.94 -90 8.0 8
MPYSD003 771769.75 8296663.37 638.4 -90 8.0 8
MPYSD004 771788.91 8296676.90 637.84 -90 8.0 8
MPYSD005 771801.38 8296692.10 637.11 -90 8.0 8
MPYSD006 771821.81 8296711.25 636.58 -90 9.0 8
MPYSD007 771949.98 8296558.46 637.4 -90 8.0 8
MPYSD008 771971.98 8296574.74 636.99 -90 8.0 8
MPYSD009 771988.54 8296590.06 637.73 -90 8.0 8
MPYSD010 772009.21 8296601.63 637.76 -90 8.0 8
MPYSD011 772023.42 8296620.87 636.97 -90 8.0 8
MPYSD012 772032.92 8296639.10 636.55 -90 8.0 8
MPYSD013 772068.51 8296369.15 639.07 -90 8.0 8
MPYSD014 772182.36 8296479.99 637.37 -90 8.0 8
MPYSD015 772189.02 8296493.84 637.9 -90 8.0 8
MPYSD018 772217.68 8296253.26 638.25 -90 8.0 8
MPYSD019 772253.59 8296268.92 638.72 -90 8.0 8
MPYSD020 772262.99 8296284.80 638.74 -90 8.0 8
MPYSD021 772282.28 8296304.64 638.18 -90 8.0 8
MPYSD024 771786.40 8296600.61 637.33 -90 8.0 8
MPYSD025 771846.42 8296642.93 638.05 -90 8.0 8
MPYSD026 771855.36 8296689.58 636.91 -90 8.0 8
MPYSD028 771840.20 8296591.26 637.77 -90 8.0 8
MPYSD029 771900.96 8296632.53 637.74 -90 8.0 8
MPYSD032 771947.31 8296622.56 637.56 -90 8.0 8
MPYSD033 772002.98 8296658.85 636.6 -90 8.0 8
MPYSD034 771988.77 8296616.79 637.25 -90 8.0 8
MPYSD035 771984.51 8296569.13 637.86 -90 8.0 8
MPYSD036 771977.74 8296523.15 637.02 -90 6.0 8
MPYSD037 772026.09 8296509.47 636.88 -90 8.0 8
MPYSD038 772036.30 8296564.13 638.38 -90 7.0 8
MPYSD039B 772043.62 8296605.96 637.46 -90 6.0 8
MPYSD040 772052.42 8296349.16 638.61 -90 7.0 8
MPYSD041 772058.99 8296398.05 638.14 -90 6.0 8
MPYSD042 772066.92 8296451.00 637.42 -90 7.0 8
MPYSD043 772077.40 8296498.94 636.83 -90 8.0 8
MPYSD044 772088.76 8296550.57 638.75 -90 8.0 8
MPYSD045 772095.90 8296601.61 637.23 -90 8.0 8
MPYSD046 772097.78 8296346.09 638.83 -90 6.0 8

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

Hole Number X Y Z Azimuth EOH Batch
MPYSD047 772103.24 8296399.46 637.74 -90 8.0 8
MPYSD048 772123.45 8296435.94 637.7 -90 6.0 8
MPYSD049 772124.27 8296481.46 636.63 -90 6.0 8
MPYSD050 772135.09 8296526.79 638.44 -90 8.0 8
MPYSD051 772143.87 8296577.63 637.35 -90 7.0 8
MPYSD052 772135.97 8296287.12 638.29 -90 6.0 8
MPYSD053 772152.80 8296331.45 638.35 -90 7.0 8
MPYSD054 772152.98 8296383.80 637.84 -90 6.0 8
MPYSD055 772161.76 8296436.31 637.07 -90 6.0 8
MPYSD057 772185.35 8296532.58 638.19 -90 8.0 8
MPYSD058 772184.81 8296277.58 638.43 -90 7.0 8
MPYSD059 772197.51 8296317.99 638.2 -90 7.0 8
MPYSD061 772216.04 8296424.19 636.68 -90 6.0 8
MPYSD062 772219.39 8296469.06 637.47 -90 6.0 8
MPYSD063 772237.39 8296264.40 638.76 -90 7.0 8
MPYSD065 772257.68 8296361.24 637.87 -90 7.0 8
MPYSD066 772264.51 8296414.53 637.31 -90 7.0 8
MPYSD067 772269.83 8296465.47 637.72 -90 6.0 8
MPYSD068 772281.53 8296510.34 638.21 -90 7.0 8
MPYSD069 772279.99 8296221.05 638.07 -90 6.0 8
MPYSD070 772283.95 8296254.78 639.06 -90 7.0 8
MPYSD071 772293.02 8296310.29 637.88 -90 6.0 8
MPYSD073 772317.69 8296462.22 638.17 -90 8.0 8
MPYSD074 772327.11 8296501.50 637.84 -90 7.0 8
MPYSD075 772329.61 8296203.93 637.25 -90 9.0 8
MPYSD076 772334.66 8296243.62 639.06 -90 6.0 8
MPYSD077 772344.89 8296294.96 637.77 -90 8.0 8
MPYSD080 772377.05 8296439.67 638.22 -90 8.0 8
MPYSD081 772382.42 8296494.56 637.67 -90 8.0 8
MPYSD083 772390.38 8296195.21 638.06 -90 9.0 8
MPYSD084 772391.62 8296254.50 638.31 -90 7.0 8
MPYSD085 772390.90 8296292.95 637.87 -90 10.0 8
MPYSD087 772421.72 8296475.57 637.95 -90 7.0 8
MPYSD088 772418.85 8296138.24 637.43 -90 9.0 8
MPYSD089 772429.47 8296179.34 637.79 -90 8.0 8
MPYSD090 772424.35 8296226.95 638.82 -90 10.0 8
MPYSD091 772442.09 8296275.47 637.67 -90 9.0 8
MPYSD092 772449.50 8296326.02 637.59 -90 10.0 8
MPYSD094 772478.75 8296424.42 638.44 -90 9.0 8
MPYSD096 772464.95 8296127.11 637.82 -90 7.0 8

www.chilwaminerals.com.au

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MPYUPYU DUNE ASSAYS DELIVER HIGH GRADE MINERAL SAND INTERSECTIONS

Hole Number X Y Z Azimuth EOH Batch
MPYSD097 772484.95 8296261.01 637.54 -90 7.0 8
MPYSD098 772492.57 8296330.14 637.28 -90 8.0 8
MPYSD100 772520.21 8296412.10 638.04 -90 8.0 8
MPYSD101 772532.56 8296459.95 637.69 -90 8.0 8
MPYSD102 772517.67 8296115.19 637.42 -90 9.0 8
MPYSD103 772526.80 8296170.59 638.08 -90 9.0 8
MPYSD104 772535.96 8296212.76 638.14 -90 6.0 8
MPYSD105 772533.45 8296261.80 637.1 -90 8.0 8
MPYSD106 772551.65 8296309.59 637.46 -90 6.0 8
MPYSD108 772570.14 8296410.10 638.12 -90 8.0 8
MPYSD109 772579.20 8296462.58 637.46 -90 7.0 8
MPYSD110 772561.60 8296064.93 637.82 -90 6.0 8
MPYSD111 772563.02 8296105.72 637.24 -90 6.0 8
MPYSD112 772572.64 8296156.82 638.02 -90 10.0 8
MPYSD113 772573.04 8296199.61 638.32 -90 8.0 8
MPYSD117 772615.29 8296406.23 638.22 -90 8.0 8
MPYSD118 772620.68 8296458.47 637.47 -90 7.0 8
MPYSD121 772619.16 8296151.10 638.4 -90 6.0 8
MPYSD126 772671.62 8296399.36 638.29 -90 8.0 8
MPYSD135 772710.28 8296386.93 637.79 -90 7.0 8
MPYSD136 772724.92 8296429.63 638.24 -90 9.0 8
MPYSD200 772843.33 8296137.27 638.23 -90 15.0 8
MPYSD201 772880.71 8296166.86 637.13 -90 15.0 8
MPYSD203 772951.33 8296237.42 637.45 -90 8.0 8
MPYSD205 773032.36 8296298.59 638.01 -90 9.0 8
MPYSD208 772876.16 8296110.65 638.71 -90 15.0 8
MPYSD210 772920.56 8296130.24 638.11 -90 15.0 8
MPYSD216 773029.77 8296228.11 637.67 -90 8.0 8
MPYSD218 773064.59 8296263.26 637.88 -90 9.0 8
MPYSD220 773106.04 8296292.32 637.52 -90 8.0 8
MPYSD239 773094.46 8296227.18 637.69 -90 8.0 8

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APPENDIX B – JORC TABLE 1

Section 2 Sampling Techniques and Data

(Criteria listed in the preceding section also apply to this section.)

Criteria JORC Code explanation Commentary
Sampling
techniques
Nature and quality of sampling (eg cut
channels, random chips, or specific
specialised industry standard measurement
tools appropriate to the minerals under
investigation, such as down hole gamma
sondes, or handheld XRF instruments, etc).
These examples should not be taken as limiting
the broad meaning of sampling.
Include reference to measures taken to ensure
sample representivity and the appropriate
calibration of any measurement tools or
systems used.
Aspects of the determination of mineralisation
that are Material to the Public Report.
In cases where ‘industry standard’ work has
been done this would be relatively simple (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.
Prior to the commencement of drilling, logging,
and sampling, the geological team developed a
standardized set of protocols and procedures.
Sonic core drilling, using two Eijkelkamp CRS-V
CompactRotoSonic rigs, was undertaken.
The core was logged, as a first pass, at the rig, then
relogged and sampled at the Chilwa base camp,
located in Zomba.
Sampling was based on geological changes
observed in the core, with a minimum sample
length of 20cm and maximum sample length of
1.80m in granular material. In the batch here
reported, one sample of 1.93m is recorded in the
basal clay, underlying the deposit.
The standard sample length is 1.0m
Samples were first subject to sample preparation
at the Company’s facility in Zalewa, Malawi, with
the aim of generating a representative split sub-
sample of 500g for Heavy Liquid Separation assay
at LightDeepEarth (LDE),Pretoria, RSA.
Sample preparation involves initial drying, then
crushing to 80% passing 3mm, followed by
splitting of a sub-sample on a rotary splitter. The
sub-sample (approximately 500g) was sent by air
freight to LDE where it was analysed for slimes%,
Oversize % and THM%.
The Competent Person is of the opinion that the
sampling techniques were to industry accepted
standards.
Drilling
techniques
Drill type (eg core, reverse circulation, open-
hole hammer, rotary air blast, auger, Bangka,
sonic, etc) and details (eg core diameter, triple
Drilling physicals are the same for both sonic rigs
used.

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Criteria JORC Code explanation Commentary
or standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).
Drilling was undertaken using a single barrel (CB3
SW CoreBarrel 2m), which produced core of Inner
Diameter (ID) = 76mm and Outer Diameter (OD) =
102mm). Where waterlogged sediment or loose
sediment was encountered, an Aqualock (AL70)
Sampler 2m barrel was used, which produced core
of Inner Diameter (ID) = 70mm and Outer Diameter
(OD) = 92mm.
Drill rods were 1m in length.
Drilling was conducted on a regular grid of 50 x
50m in the centre of the Mpyupyu Dune deposit,
with the grid spacing increasing to 50 m x 100 m in
areas known from historic drilling to be low grade
or associated with thin HMS sequences on the
flanks of the deposit.
Drill sample
recovery
Method of recording and assessing core and
chip sample recoveries and results assessed.
Measures taken to maximise sample recovery
and ensure representative nature of the
samples.
Whether a relationship exists between sample
recovery and grade and whether sample bias
may have occurred due to preferential
loss/gain of fine/coarse material.
Linear core recovery was determined on a run-by-
run basis, ranging from 0% to 100% (Averaging
96.87% for the holes reported in this
announcement)All core samples were immediately
bagged in polyethene sausage bags to reduce
slimes loss.
Where a lot of water, or loose material was
encountered, an Aqualock (AL70) Sampler 2m
barrel was used.
No apparent relationship currently appears to exist
between the sample length (or weight) and the %
slime and/ or % THM.
Logging Whether core and chip samples have been
geologically and geotechnically logged to a
level of detail to support appropriate Mineral
Resource estimation, mining studies and
metallurgical studies.
Whether logging is qualitative or quantitative in
nature. Core (or costean, channel, etc)
photography.
The total length and percentage of the relevant
intersections logged.
Each sample was logged in the field as well as at
Chilwa’s base camp in Zalewa for: dominant
sediment type, colour (using a Munsell colour
chart), hardness, coarseness, sorting and particle
roundness, as well as for indicative Slimes % and
Oversize %.
An estimation of heavy mineral content was made
using a calibrated, handheld XRF.
Logging was qualitative (descriptive) and
quantitative in nature.

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Criteria JORC Code explanation Commentary
All intervals were logged according to the
established protocols.
All core was photographed using a Canon, model
LC-E10E. The resolution is 6000 x 4000 (high)
(average size 8.1MB, 74 dpi, 24 bit). All
photographs have a colour calibration card and
scale bar in the photograph.
Core photographs are stored and managed using
IMAGOTMsoftware.
It is the Competent Persons’ opinion that core
logging was done to a level of detail that will
support appropriate Mineral Resource estimation
and classification, mining studies and
metallurgical studies.
Sub-sampling
techniques and
sample
preparation
If core, whether cut or sawn and whether
quarter, half or all core taken.
If non-core, whether riffled, tube sampled,
rotary split, etc and whether sampled wet or
dry.
For all sample types, the nature, quality and
appropriateness of the sample preparation
technique.
Quality control procedures adopted for all sub-
sampling stages to maximise representivity of
samples.
Measures taken to ensure that the sampling is
representative of the in-situ material collected,
including for instance results for field
duplicate/second-half sampling.
Whether sample sizes are appropriate to the
grain size of the material being sampled.
The core is logged and sampled at Chilwa’s base
camp in Zalewa.
Lose material was split using a scoop after having
been homogenized; more competent core was
split in the middle using a trowel or chisel (if it was
too hard). One half of the sample was bagged and
labelled for submission and the other half is
stored on site in a plastic bag.
All samples can be considered as being ‘wet’,
however are in the form of a core.
Duplicates in the batch of samples reported are
laboratory duplicates, testing repeatability and
precision of sample preparation and analytical
methods.
Blanks and two types of reference samples
(Standard Reference Materials, SRMs) were
inserted per batch of 20 samples to monitor assay
quality. Reference samples were generated in-
house by bulk sampling surficial material at field
localities known (by prior assay) to contain high
grade, low slimes, and lower grade, moderate
slimes mineralisation. The material was dried and
then subject to eight stages of quartering and
recombining, adhering to a Company Standard

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Criteria JORC Code explanation Commentary
Operating Procedure, to thoroughly homogenise
the sample.
The sample size is considered representative, in
that the 500g sample represents approximately
50% of the parent sample, and was generated
using appropriate splitting and sub sampling
techniques.
Sample Preparation:
Sample preparation is undertaken at the
Company’s facility in Zalewa which was supplied
and fitted by ALS Labs RSA and is now owned and
operated by Chilwa Minerals Ltd.
On receipt from geological logging the samples are
logged into the sample prep labs system.
Samples are dried at 95oC for up 48 hours.
The dry sample is then crushed to better than 80%
<3mm using a jaw crusher.
The sample is then split using a rotary splitter.
A 500g sub sample is bagged and boxed for
shipment to LightDeepEarth.
The Competent Person is of the opinion that the
sample size selected is appropriate for the grain
size of the material being sampled.
Quality of assay
data and
laboratory tests
The nature, quality and appropriateness of the
assaying and laboratory procedures used and
whether the technique is considered partial or
total.
For geophysical tools, spectrometers,
handheld XRF instruments, etc, the
parameters used in determining the analysis
including instrument make and model, reading
times, calibrations factors applied and their
derivation, etc.
Nature of quality control procedures adopted
(eg standards, blanks, duplicates, external
laboratory checks) and whether acceptable
Testwork Methodology:
Testwork is undertaken at LDE, with the following
process being followed:
Part A: Heavy Mineral sample prep and sink-
float:
Samples are received and reconciled against the
client list. Missing and extra samples are noted.
Samples are weighed and the dry mass is
recorded.
Soak dried sample to allow complete wetting of
clay minerals.

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Criteria JORC Code explanation Commentary
levels of accuracy (ie lack of bias) and
precision have been established.
Attrition scrub sample for less than 1kWH/t to
allow for clay dispersion.
Deslime sand on 45um screen and discard the 0 to
45um fraction.
Dry deslimed sand and screen on 1mm. Record
mass of +1mm and discard. Record mass of 45 to
1,000um fraction.
Split the prepared sand sample (45 to100um
fraction) using a rotary splitter to achieve mass
circa 300g.
Store remaining mass as feed reference.
Submit 300g sub-sample for sink-float using
tetrabromoethane (TBE).
Submit a repeat sample (from remaining mass) for
every 50thsample to ensure sink-float consistency.
Sink and Float fractions are cleaned with acetone
and weighed.
Capture data to Excel and report.
An independent QAQC program has been
implemented by Chilwa, this comprises of:
-
Measurement of core recovery.
-
Sixty SRMswere submitted with the samples
reported in this Batch, comprising5.6%of the
total number of samples submitted.
-
Coarse blanks, a pool filter sand available
locally in Malawi, and widely used as blank
material in the mineral sands industry, were
submitted within the Batch of samples to
control potential cross-contamination of
samples. The Chilwa geology team inserted
and analysed the results ofSixty blanks,
comprising5.6%of the total number of
samples submitted.
-
Sixtylab duplicates were submitted,
representing5.6%of the total samples
submitted for analysis.

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Criteria JORC Code explanation Commentary
-
Twenty-fourrepeat analyses were carried out
by LDE in the batch reported, representing a
repeat rate of 1 in 42.
A visit to LDE laboratory was undertaken by Mr
Mark Burnett on31 January 2025. Mr Burnett is a
Competent Person for HM deposits.
It is the Competent Persons’ opinion that the
independent QAQC program has demonstrated
that acceptable levels of accuracy and precision
have been established for the batch here reported.
Verification of
sampling and
assaying
The verification of significant intersections by
either independent or alternative company
personnel.
The use of twinned holes.
Documentation of primary data, data entry
procedures, data verification, data storage
(physical and electronic) protocols.
Discuss any adjustment to assay data.
Two or more Chilwa geologists have inspected the
core. All core has been photographed. Significant
intersections were checked by the Senior Project
Geologist.
The Competent Person reviewed the sampling
techniques and data during a site visit in January
2025 to verify the drilling, logging and sampling
techniques.
Primary data was collected using a standard
set of paper templates in the field. These data
were then entered into an Excel spreadsheet.
Assay data are imported directly from digital
assay files and are merged in the database
with sample information. Data is backed up
regularly in off-site secure servers.
The database is stored at Chilwa’s head office
in Perth and is regularly backed up. Logging
entries are reviewed by the Project geologist
for accuracy.
The remaining half core is stored at Chilwa’s
base camp in Malawi.
No adjustment to the assay values have been
made.
Logging entries are reviewed by the Project
geologist for accuracy.

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Criteria JORC Code explanation Commentary
Location of data
points
Accuracy and quality of surveys used to locate
drill holes (collar and down-hole surveys),
trenches, mine workings and other locations
used in Mineral Resource estimation.
Specification of the grid system used.
Quality and adequacy of topographic control.
All drilling has been surveyed by qualified
surveyors, using a GNSS Leica GS16 GNSS with
base station and rover.
All survey work references UTM zone 36S, using
the WGS 84 datum.
No downhole surveys were required, as all holes
were vertical and relatively shallow.
A LIDAR, drone survey has been competed for the
entire licence area.
Seven ground control points were used to calibrate
the LIDAR survey. The vertical horizontal variances
were all within acceptable tolerance levels.
The Competent Person is of the opinion that the
quality and adequacy of the survey work
undertaken to locate drill hole collars is
acceptable. The quality and adequacy of
topographic control is also considered to be
acceptable and can be used for Mineral Resource
estimation and mine planning purposes.
Data spacing and
distribution
Data spacing for reporting of Exploration
Results.
Whether the data spacing and distribution is
sufficient to establish the degree of geological
and grade continuity appropriate for the
Mineral Resource and Ore Reserve estimation
procedure(s) and classifications applied.
Whether sample compositing has been
applied.
The drill spacing is on a nominal 50 m across strike
and 50m along strike grid. The spacing may be
increased to 50 m x 100m in areas known (from
historic drilling information) to contain lower HM
grades and/ or thin HM bearing units associated
with low grades and/ or high slimes.
Data spacing is considered reasonable for the
current level of the study.
The degree of geological and grade continuity from
hole to hole will be assessed in support of an
estimation of a Mineral Resource or Ore Reserve
and the classifications the Mineral Resource
according to the definition of Mineral Resource in
the JORC (2012) Code.
Compositing of sampling results for this press
release has been applied.

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Criteria JORC Code explanation Commentary
Orientation of
data in relation to
geological
structure
Whether the orientation of sampling achieves
unbiased sampling of possible structures and
the extent to which this is known, considering
the deposit type.
If the relationship between the drilling
orientation and the orientation of key
mineralised structures is considered to have
introduced a sampling bias, this should be
assessed and reported if material.
All holes were drilled vertically, which is near
normal to the low angle bedding and is therefore
considered to be unbiased.
The sonic drill grid orientation covers the known
deposit along and across strike mineralisation
extent.
The Competent Person considers there is no
sample bias of the mineralisation due to hole
orientation.
Sample security The measures taken to ensure sample security. The core is stored and sampled in Chilwa’s
secured base camp facility in Zalewa.
Following sampling, the total number of samples
was cross checked to confirm that all of the
samples were taken.
A hand over sheet was signed off prior to the
samples being dispatched to Sample preparation
at the Company’s sample prep facility in Zalewa.
All hard-copy documents relating to sample
transport are filed in hard copy. This includes
inventory verifications at the different collection
and dispatch points, export permits, and
inspection certificates.
Sample preparation was completed at the
Company’s facility in Zalewa, Malawi following
which samples are transported to LDE in Pretoria,
RSA using the laboratories standard chain of
custody procedure.
The database is stored in the cloud and backed up
on Company servers.
The remaining core is stored at Chilwa’s base
camp in Malawi.
Audits or reviews The results of any audits or reviews of sampling
techniques and data.
Sampling techniques and data were reviewed by
the Competent Person during a site visit
completed in January 2025.
The Competent Person’s review did not reveal any
fatal flaws. The sampling and data collection

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Criteria JORC Code explanation Commentary
techniques are considered to be industry
standard.
No independent, external, audits have been
undertaken to date.

Section 2 Reporting of Exploration Results

(Criteria listed in the preceding section also apply to this section.)

Criteria JORC Code explanation Commentary
Mineral tenement
and land tenure
status
Type, reference name/number, location and
ownership including agreements or material
issues with third parties such as joint ventures,
partnerships, overriding royalties, native title
interests, historical sites, wilderness or
national park and environmental settings.
The security of the tenure held at the time of
reporting along with any known impediments
to obtaining a licence to operate in the area.
On 27 September 2022, Chilwa Minerals Africa
Limited (Chilwa) was granted Exploration Licence
EL 0670/2 allowing them to explore for HMS
deposits over an area of 865.896km2. The licence
is valid for three years, with an option to extend the
term in accordance with Section 119 of the
(Malawian) Mines and Minerals Act (Act number 8
of 2019).
Chilwa engaged Savjani and Company (Savjani), a
Malawian legal firm, who have their chambers in
Blantyre, Malawi, to review the tenement status.
AMC has had sight of the legal opinion as provided
by Savjani, who noted that the ELs are in good
standing and that there are no known impediments
to operate in the area.
Exploration done
by other parties
Acknowledgment and appraisal of exploration
by other parties.
Academic research into the deposition of the HMS
deposits around Lake Chilwa have been
undertaken since the 1980’s.
Exploration of the HMS mineralisation in the lake
Chilwa area has been undertaken by various
government concerns and companies,
commencing with Claus Brinkmann between 1991
and 1993 as part of an initiative by the German
Government to aid mineral development in Malawi.
Millennium Mining Limited (MML) concluded
exploration work in the area, focusing on the
northern deposits of Halala and Namanja during
the early 2000s.
In 2014, Tate Minerals (Tate) undertook a desktop
review of the work undertaken by Claus Brinkmann

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Criteria JORC Code explanation Commentary
and entered into a Joint Venture agreement with
Mota-Engil Investments (Malawi) Limited (MEIML)
to explore EL 0572/20, an EL that contains the
current target area.
In August 2015, MEIML commenced a drilling
programme on the Mpyupyu, Halala, Mposa, and
Bimbi targets. This work was completed in
November 2015.
Geology Deposit type, geological setting and style of
mineralisation.
Lake Chilwa is a closed, saline lake, which formed
as a result of tectonic activities along the East
African Rift.
The lake previously drained to the north, but the
mouth eventually silted up and the lake was
subsequently completely closed off. A 25 km long
sand bar formed along the north shore of the lake,
closing off the drainage to the north.
The Lake Chilwa (Project) HMS targets consist of
beach and dune deposits located on
palaeostrandline deposits that were deposited and
preserved through several cycles of lake level
fluctuations and stable periods.
The main HM deposits are located on a very
distinct strandline where the conditions of
sediment supply, lake level, and hydrological were
favourable for the formation and preservation of
the sand deposits.
Sediment, including HMs, were eroded and
supplied by several streams and rivers flowing into
the lake from surrounding basement gneiss and
alkaline intrusion complexes.
The HM characteristics of each deposit are
determined by the provenance rock types of rocks.
Some deposits have local point sources
contributing to the HM assemblage.

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Criteria JORC Code explanation Commentary
Drill hole
Information
A summary of all information material to the
understanding of the exploration results
including a tabulation of the following
information for all Material drill holes:
- easting and northing of the drill hole
collar
- elevation or RL (Reduced Level –
elevation above sea level in metres) of
the drill hole collar
- dip and azimuth of the hole
- downhole length and interception depth
- 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.
All holes were drilled vertically with the drilling
trend orientated to the nominal strike/trend of the
Mposa, based on historical drilling.
A total of821sonic drillholes, amounting to
7073.06m have been drilled on the Mpyupyu Dune
deposit to date. This press announcement details
the assay results of110of these holes.
The minimum hole depth, in this batch, is5m and
the maximum depth is16m.
All drill hole collar coordinates, hole lengths and
final hole depths are listed in this announcement
No drilling has been excluded from these results.
Data aggregation
methods
In reporting Exploration Results, weighting
averaging techniques, maximum and/or
minimum grade truncations (eg cutting of high
grades) and cut-off grades are usually Material
and should be stated.
Where aggregate intercepts incorporate short
lengths of high-grade results and longer
lengths of low-grade results, the procedure
used for such aggregation should be stated
and some typical examples of such
aggregations should be shown in detail.
The assumptions used for any reporting of
metal equivalent values should be clearly
stated.
The minimum, maximum and average values for
THM%, Slimes % and Oversize % are reported.
No metal equivalent values are reported.
Relationship
between
mineralisation
widths and
intercept lengths
These relationships are particularly important
in the reporting of Exploration Results.
If the geometry of the mineralisation with
respect to the drill hole angle is known, its
nature should be reported.
If it is not known and only the down hole
lengths are reported, there should be a clear
The drillholes are vertical and the mineralisation is
generally horizontal to sub-horizontal; all
intercepts represent true widths.

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Criteria JORC Code explanation Commentary
statement to this effect (eg ‘down hole length,
true width not known’).
Diagrams Appropriate maps and sections (with scales)
and tabulations of intercepts should be
included for any significant discovery being
reported These should include but not be
limited to a plan view of drill hole collar
locations and appropriate sectional views.
Maps, sections and plan view are provided in the
accompanying press release.
Balanced
reporting
Where comprehensive reporting of all
Exploration Results is not practicable,
representative reporting of both low and high
grades and/or widths should be practiced to
avoid misleading reporting of Exploration
Results.
All relevant information has been included in this
press release and is considered to represent a
balanced report.
Other substantive
exploration data
Other exploration data, if meaningful and
material, should be reported including (but not
limited to): geological observations;
geophysical survey results; geochemical
survey results; bulk samples – size and method
of treatment; metallurgical test results; bulk
density, groundwater, geotechnical and rock
characteristics; potential deleterious or
contaminating substances.
Chilwa Minerals are currently updating all of the
historical work undertaken to date on the Project.
The results of these studies will be reported as and
when they are available.
Further work The nature and scale of planned further work
(eg tests for lateral extensions or depth
extensions or large-scale step-out drilling).
Diagrams clearly highlighting the areas of
possible extensions, including the main
geological interpretations and future drilling
areas, provided this information is not
commercially sensitive.
Planned further work recommendations include:
Hand augering and termite mound sampling as
well as trenching and pitting for bulk samples to be
used for process test work.

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