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RUMBLE RESOURCES LIMITED Regulatory Filings 2021

Apr 18, 2021

65736_rns_2021-04-18_e173a7d9-4563-4c36-85db-0421f0a8b42b.pdf

Regulatory Filings

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19 th April 2021

Major Zinc-Lead Discovery at Earaheedy Project Western Australia

Chinook Prospect

• 26 drill holes out of 26 intersected visual Zn-Pb mineralisation, 2 holes fast tracked (EHRC050 and EHRC044) have been received confirming a Major Zinc-Lead Discovery

RC Drill Hole EHRC050

  • 34m @ 4.22% Zn + Pb from 66m - Vertical Hole (True Width)
    • o Includes 17m @ 6.65 % Zn + Pb from 73m

With higher grade core zone of

14m @ 5.02% Zn, 2.03% Pb (7.05% Zn + Pb) from 76m

RC Drill Hole EHRC044

  • 21m @ 4.31% Zn + Pb from 61m – Vertical Hole (True Width)
    • o Includes 10m @ 5.02 % Zn + Pb from 67m
  • Strong continuity of mineralisation EHRC050 and EHRC044 are 500m apart
  • Mineralisation is pyrite-sphalerite-galena (sulphide) hosted in siltstone, shale, marl and minor sandstone (basal unit of the Frere Iron Formation)
  • The mineralisation is shallow, flat lying, dipping to the northeast open pittable
  • The ratio of Zn:Pb is approximately 3:1 with strongly anomalous Ag (silver) associated with the mineralisation

Large Scale Zn-Pb-Ag 'Tier 1' Deposit Potential at Chinook

  • Assays for the remaining twenty-four (24) RC drill holes at Chinook are pending. Of note: All holes reported visible Zn + Pb mineralisation, aided by pXRF analysis
  • The RC drilling has defined the following mineralisation parameters:
    • o RC Drill Grid Design 5 drill lines x 500m x 100m intersecting Zinc-Lead over 2km's of strike and over 1.1km's of width (limited to drilling grid) – Open in all directions
    • o RC Drilling results indicate true thickness is up to 34m vertical holes
    • o The Chinook Prospect has the potential to be at the upper end of the existing exploration target for a large-scale, shallow and continuous open-pit deposit

Of note: Prospective mineralised zone has over 45km of strike

Rumble Resources Ltd

Suite 9, 36 Ord Street, West Perth, WA 6005

T +61 8 6555 3980

F +61 8 6555 3981

rumbleresources.com.au

ASX RTR

Executives & Management

Mr Shane Sikora Managing Director

Mr Brett Keillor Technical Director

Mr Matthew Banks Non-executive Director

Mr Michael Smith Non-executive Director

Mr Steven Wood Company Secretary

Mr Mark Carder Exploration Manager

Rumble Resources Limited (ASX: RTR) ("Rumble" or "the Company") is pleased to announce that the assay results of the two RC drillholes fast tracked (EHRC050 and EHRC044) at the Chinook Prospect have confirmed a Major Zinc-Lead Discovery.

The Chinook Prospect has the potential to be at the upper end of the existing exploration target (refer page six of this announcement) based on the consistent grades (4% - 5% Zn + Pb), the true thickness (up to 34m vertical), the intersection of Zn-Pb over 2km of strike, the width over 1.1km and the mineralisation being open in all directions. Of importance is the shallow nature of the Zinc-Lead mineralisation, which is amenable to large scale open cut mining scenarios.

The results have highlighted the potential for a very large-scale (Tier 1) Zinc-Lead System as the Chinook Prospect drilling has only tested 2km of the 45km of prospective mineralised strike underlining the potential to delineate multiple large tonnage, shallow (open pit) deposits throughout the Earaheedy Project.

Image 1 – Massive Sphalerite (Zinc) – RC Chips – EHRC050 (80 – 81m)

Earaheedy RC Drilling Program - Completed

RC drilling is now completed with the total metreage being 3593m for thirty-three (33) holes.

Rumble fast tracked two drillholes (EHRC050 and EHRC044) for multi-element assays (note not four holes as previously announced in ASX Announcement 8th April 2021).

  • Chinook Prospect twenty-six (26) holes for 2653m:
    • o Two RC holes have been assayed (EHRC050 and EHRC044). Twenty-four (24) holes have assays pending
    • o Drilling at Chinook is on 500m by 100m spacing with 5 traverses completed testing >2000m of strike (see image 4)
  • Magazine Prospect seven (7) holes for 940m:
    • o All assays are pending
    • o Drilling at Magazine was designed to test for potential strike vectors associated with mineralisation defined in 2020 by Rumble. EHRC034(2020) previously returned 12m @ 4.48% Zn + Pb from 88m announced 4th May 2020

Chinook Drill Results – Major Discovery

EHRC050 (Image 2)

  • 34m @ 4.22% Zn + Pb from 66m (True Width – 1% Zn + Pb cut-off)
    • o Includes 17m @ 6.65 % Zn + Pb from 73m

With higher grade core zone of

14m @ 5.02% Zn, 2.03% Pb (7.05% Zn + Pb) from 76m

Mineralisation (sulphide) comprises of pyrite-sphalerite-galena with pervasive low temperature silica alteration (crypto-crystalline) hosted in variable siltstone, shale, marl and minor sandstone. The sulphide mineralisation is generally coarse grained with the sphalerite being a low Fe type (yellow – red colour). Associated with the mineralisation is Ag (silver). EHRC050 lies on Section 2 (see image 4 and 5) on 100m spacing between drill holes EHRC054 and EHRC060 (assays pending).

EHRC044 (Image 3)

21m @ 4.31% Zn + Pb from 61m (True Width – 2% Pb + Zn cut-off)

o Includes 10m @ 5.02 % Zn + Pb from 67m

Drill hole EHRC044 was located approximately 500m southeast along strike from drill hole EHRC050. Mineralisation is similar to EHRC044. EHRC044 lies on Section 3 (images 4 and 5).

Geology Overview

Mineralisation is interpreted to lie immediately above the unconformity between the overlying Frere Iron Formation and the underlying Yelma Formation. The basal unit to the Frere Iron Formation is a highly variable (multiple facies) siltstone, shale, marl and sandstone (including grit) zone which represents the initial sedimentation cycle (Frere Iron Formation). The unconformity is interpreted as a hiatus (approximately 30 million years) between the underlying Yelma Formation (carbonate dominant – shallow sea shelf environment) and the overlying Frere Iron Formation (clastic and granular iron – shallow fresh water – oxidized environment). The unconformity likely presents a regional scale conduit for metal bearing brines. Multiple late block faults (normal faults – east-west and northwest strike) are interpreted to be north side up which lifts the gently northeast dipping mineralisation closer to the surface allowing for large scale open cut mining.

Image 3 - EHRC044 RC Drill Section – Geology with Results

Image 4 – Chinook Prospect – Location Plan with Drill Hole Status and Intersections

Image 5 – Chinook Prospect Stacked Sections

Chinook Exploration Potential

The expedited assay results for EHRC050 and EHRC044 along with the previous RC drilling completed by Rumble has highlighted the very-large scale of continuous Zn – Pb (with Ag) mineralisation which is completely open along strike and down dip at Chinook. Image 4 presents the drill hole locations (including all holes awaiting assay results in red) and shows that the mineralisation is open to the northwest with two historic drill holes ending in mineralisation (i.e.TRC66 – 119-120 EOH 2.05% Zn + Pb). Hole TRC66 is 750m along strike from Section 1.

The system is open to the southeast (image 4), however, it is interpreted that block faulting has lifted the mineralisation along strike and the zone has moved to the northeast. RC drilling by Rumble has confirmed > 2km of mineralised strike (completely open).

The three sections (image 5) highlight the continuity of mineralisation down dip. Section 1 reported visible Zn-Pb mineralisation in all seven holes (awaiting results) over a down dip length of 600m. To the northeast, historic drill hole TDH14 (11m @ 3.6% Zn + Pb from 225m) is interpreted to be the same mineralisation zone which infers the down dip length to be 1500m.

About Earaheedy Project

Image 6 – Earaheedy Project With Regional Geology and Prospect Locations

The Earaheedy project is located approximately 110km north of Wiluna, Western Australia. Rumble owns 75% of E69/3464 and Zenith Minerals Ltd (ASX: ZNC) owns 25%. Rumble has a single contiguous exploration license application ELA69/3787 (100% RTR) covering the known strike extent. The project area covers the inferred unconformity contact between the overlying Frere Iron Formation and underlying Yelma Formation of the Palaeoproterozoic Earaheedy Basin.

RC and diamond core drilling by Rumble has defined two areas of significant Zn-Pb mineralisation with anomalous Ag (see image 6). Within EL69/3464, Chinook and Magazine lie 12km apart. Within the project area, Rumble controls 45km of prospective strike which has the potential for multiple large tonnage Zn – Pb deposits.

Exploration Target

Rumble's Zn-Pb exploration target at the Earaheedy Project is between 40 to 100 million tonnes at a grade ranging between 3.5% Zn-Pb to 4.5% Zn-Pb. The exploration target is at a shallow depth (80m), and over 40kms of prospective strike (completely open) has been defined within the Earaheedy Project. The potential quantity and grade of the exploration target is conceptual in nature, there has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource. The exploration target, being conceptual in nature, takes no account of geological complexity, possible mining method or metallurgical recovery factors. The exploration target has been estimated in order to provide an assessment of the potential for large-scale Zn-Pb deposits within the Earaheedy Project. The exploration target has been prepared and reported in accordance with the 2012 edition of the JORC Code.

Earaheedy Zn-Pb Project –Exploration Target
Range Tonnes Grade
Upper 100,000,000 4.5% Zn+Pb
Lower 40,000,000 3.5% Zn+Pb

Table 1: Near surface exploration target down to 100 metre - shallow depth

The exploration target is based on the current geological understanding of the mineralisation geometry, continuity of mineralisation and regional geology. This understanding is provided by an extensive drill hole database, regional mapping, coupled with understanding of the host stratigraphic sequence and a feasibility study completed at the nearby Paroo Pb deposit. Included in the data on which this exploration target has been prepared is recent RC drilling of 30 holes for 2690m (three RC stages), 33 holes for 3593m recently completed (assays returned for 2 and 31 holes assays pending) and diamond drilling of 4 holes for 1199.8m completed by Rumble along with 64 historic RC drill holes completed within the project area (E69/3464) by previous explorers (refer historical exploration results in previous ASX announcements dated 5 February 2019 and 12 October 2017, 23rd January 2020 which continue to apply and have not materially changed). Some of the considerations in respect of the estimation of the exploration target include:

  • o Drilling results have demonstrated strong continuity of shallow, flat lying mineralisation;
  • o Over 40km's of prospective strike and open (refer image 6);
  • o Minimum 600m of width (based on shallow 7.5° and shallow depth to 120m, based on drilling results.
  • o True width (thickness) of mineralisation up to 34 metres received in drilling results; and
  • o Specific gravity (SG) of 2.5 (world average SG of sandstone not accounting for metal).

The Company intends to test the exploration target with drilling and this further drilling is expected to extend over approximately 12 months. Grade ranges have been either estimated or assigned from lower and upper grades of mineralisation received in drilling results. A classification is not applicable for an exploration target.

Authorisation

This announcement is authorised for release by Shane Sikora, Managing Director of the Company.

-Ends-

For further information visit rumbleresources.com.au or contact [email protected].

About Rumble Resources Ltd

Rumble Resources Ltd is an Australian based exploration company, officially admitted to the ASX on the 1st July 2011. Rumble was established with the aim of adding significant value to its current mineral exploration assets and will continue to look at mineral acquisition opportunities both in Australia and abroad.

Competent Persons Statement

The information in this report that relates to Exploration Results and the Exploration Target is based on and fairly represents information compiled by Mr Brett Keillor, who is a Member of the Australasian Institute of Mining & Metallurgy and the Australian Institute of Geoscientists. Mr Keillor is an employee of Rumble Resources Limited. Mr Keillor has sufficient experience 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 Keillor consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Previously Reported Information

The information in this report that references previously reported exploration results is extracted from the Company's ASX market announcements released on the date noted in the body of the text where that reference appears. The previous market announcements are available to view on the Company's website or on the ASX website (www.asx.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 market announcements. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from the original market announcements.

Disclaimer

This report contains certain forward-looking statements and forecasts, including possible or assumed reserves and resources, production levels and rates, costs, prices, future performance or potential growth of Rumble Resources Ltd, industry growth or other trend projections. Such statements are not a guarantee of future performance and involve unknown risks and uncertainties, as well as other factors which are beyond the control of Rumble Resources Ltd. Actual results and developments may differ materially from those expressed or implied by these forward looking statements depending on a variety of factors. Nothing in this report should be construed as either an offer to sell or a solicitation of an offer to buy or sell securities. This document has been prepared in accordance with the requirements of Australian securities laws, which may differ from the requirements of United States and other country securities laws. Unless otherwise indicated, all ore reserve and mineral resource estimates included or incorporated by reference in this document have been, and will be, prepared in accordance with the JORC classification system of the Australasian Institute of Mining, and Metallurgy and Australian Institute of Geoscientists.

Table 2. RC Drill Hole Location Table All Holes Vertical – GDA94Z51

Hole_ID Max_Depth Orig_East Orig_North Comment
EHRC040 30 259870 7163469 Water Bore
EHRC041 126 2624347159980 Magazine
EHRC042 114 262620 7159760 Magazine
EHRC043 102 262103 7159950 Magazine
EHRC044 96 253282 7165326 Chinook
EHRC045 78 253167 7165149 Chinook
EHRC046 118 253389 7165496 Chinook
EHRC047 89 253813 7165202 Chinook
EHRC048 90 253914 7165383 Chinook
EHRC049 108 252934 7165761 Chinook
EHRC050 102 252840 7165608 Chinook
EHRC051 78 252293 7165716 Chinook
EHRC052 90 252386 7165874 Chinook
EHRC053 126 252500 7166047 Chinook
EHRC054 126 253046 7165947 Chinook
EHRC055 96 254390 7165140 Chinook
EHRC056 78 254484 7165313 Chinook
EHRC057 84 254585 7165477 Chinook
EHRC058 108 252449 7165974 Chinook
EHRC059 90 252785 7165510 Chinook
EHRC060 102 252894 7165702 Chinook
EHRC061 126 252990 7165870 Chinook
EHRC062 90 253975 7165502 Chinook
EHRC063 72 253864 7165299 Chinook
EHRC064 90 253757 7165119 Chinook
EHRC065 84 253656 7164960 Chinook
EHRC066 84 252326 7165799 Chinook
EHRC067 160 252559 7166143 Chinook
EHRC068 180 252614 7166224 Chinook
EHRC069 108 254422 7165230 Chinook
EHRC070 144 262214 7160116 Magazine
EHRC071 150 262318 7160291 Magazine
EHRC072 160 262597 7160224 Magazine
EHRC073 144 262743 7159933 Magazine

Table 3. RC Drill Hole EHRC050 Assay Results

Hole ID mFrom mTo Zn_% Pb_% Zn+Pb% Ag_ppm S_% As_ppm Ca_% Cd_ppm Cu_ppm Fe_% Mg_% Mn_ppm
EHRC050 0 4 0.01 0.01 0.01 <0.5 0.07 43 0.13 <0.5 24 22.7 0.22 436
EHRC050 4 8 0.00 0.00 0.01 <0.5 0.03 47 0.05 <0.5 25 22.3 0.15 200
EHRC050 8 12 0.00 0.00 0.01 <0.5 0.02 45 0.06 <0.5 23 22.3 0.32 589
EHRC050 12 16 0.01 0.00 0.01 <0.5 0.02 57 0.06 <0.5 15 27.7 0.4 566
EHRC050 16 20 0.00 0.00 0.01 <0.5 0.03 9 0.24 <0.5 12 6.59 0.68 329
EHRC050 20 24 0.00 0.00 0.01 <0.5 0.05 <5 6.66 5.3 7 2.54 4.27 194
EHRC050 24 28 0.02 0.01 0.03 <0.5 0.07 14 12.1 13.8 11 6.3 7.82 507
EHRC050 28 32 0.10 0.03 0.13 <0.5 0.13 40 0.44 0.7 34 17.2 0.52 811
EHRC050 32 36 0.05 0.02 0.07 <0.5 0.11 33 0.07 <0.5 32 4.49 0.23 176
EHRC050EHRC050 3640 4044 0.100.13 0.010.02 0.110.15 <0.5<0.5 0.110.09 5065 0.080.05 <0.50.7 63194 9.9613.4 0.40.35 191423
EHRC050 44 48 0.10 0.05 0.14 <0.5 0.11 83 0.04 <0.5 216 13.45 0.13 1555
EHRC050 48 52 0.05 0.03 0.08 <0.5 0.11 32 0.03 <0.5 92 5.18 0.17 1015
EHRC050 52 54 0.06 0.05 0.11 <0.5 0.13 38 0.19 <0.5 96 6.81 0.37 1485
EHRC050 54 55 0.02 0.05 0.07 <0.5 0.13 8 0.05 <0.5 52 1.8 0.57 1515
EHRC050 55 56 0.02 0.04 0.06 <0.5 0.1 9 0.02 <0.5 43 1.14 0.65 1015
EHRC050 56 57 0.09 0.10 0.19 <0.5 0.18 70 0.19 <0.5 219 6.65 0.44 3140
EHRC050 57 58 0.04 0.12 0.15 <0.5 0.15 23 0.06 <0.5 101 2.09 0.59 2510
EHRC050 58 59 0.03 0.07 0.11 <0.5 0.11 20 0.02 <0.5 90 1.65 0.59 757
EHRC050 59 60 0.03 0.15 0.18 <0.5 0.15 17 0.05 <0.5 87 1.54 0.46 441
EHRC050 60 61 0.03 0.12 0.15 <0.5 0.16 15 0.3 <0.5 68 3.21 0.49 1100
EHRC050 61 62 0.02 0.09 0.11 0.5 0.06 19 0.19 <0.5 79 2.52 0.41 372
EHRC050 62 63 0.01 0.02 0.04 <0.5 0.08 32 0.06 <0.5 68 1.35 0.28 101
EHRC050 63 64 0.02 0.02 0.04 <0.5 0.08 49 0.05 <0.5 79 1.21 0.27 81
EHRC050 64 65 0.03 0.03 0.06 <0.5 0.15 35 0.06 <0.5 100 2.07 0.39 156
EHRC050 65 66 0.07 0.04 0.10 0.6 0.22 48 0.12 1.1 180 2.21 0.46 176
EHRC050 66 67 0.26 1.76 2.01 4.8 1.03 48 0.56 9.1 286 3.14 0.53 353
EHRC050 67 68 1.30 2.71 4.01 11.2 8.84 124 0.06 53.5 592 7.16 0.29 47
EHRC050 68 69 1.08 2.28 3.36 6.3 3.16 107 0.06 48.8 200 2.27 0.42 49
EHRC050 69 70 1.65 3.16 4.81 7 3.41 93 0.07 43.5 191 10.3 0.44 11750
EHRC050 70 71 1.32 1.38 2.69 2.4 1.12 38 0.11 24 92 19.25 0.49 24700
EHRC050 71 72 1.47 0.58 2.05 1.6 0.96 49 0.11 24.7 70 24.6 0.57 23500
EHRC050 72 73 1.13 0.62 1.75 3.2 1.91 89 0.08 18.5 104 22.2 0.53 18950
EHRC050 73 74 1.45 2.26 3.71 2.3 2.88 134 0.08 36.2 96 21.3 0.55 17600
EHRC050 74 75 1.62 3.28 4.90 1.4 4.06 218 0.09 40.9 94 20.8 0.5 20400
EHRC050 75 76 2.24 3.63 5.87 2.7 4.49 220 0.09 55.5 86 21.1 0.49 22200
EHRC050 76 77 3.91 4.98 8.89 4.4 5.54 230 0.08 100 91 19.7 0.5 21800
EHRC050EHRC050 7778 7879 4.184.89 3.461.76 7.646.65 3.63.4 4.854.82 236276 0.10.12 105115 8063 21.621.8 0.510.53 2600027400
EHRC050 79 80 4.07 0.92 4.99 2 3.28 261 0.11 73.5 37 21.7 0.49 29500
EHRC050 80 81 4.53 0.79 5.32 2.3 3.47 252 0.15 78.9 46 18.65 0.49 25700
EHRC050 81 82 5.07 0.96 6.03 3.8 4.88 235 0.15 91.6 51 18.4 0.44 24400
EHRC050 82 83 6.75 2.43 9.18 12.4 >10.0 187 0.13 128 181 24.2 0.27 16250
EHRC050 83 84 6.51 1.77 8.28 8.2 >10.0 233 0.13 137 112 15.75 0.39 12800
EHRC050 84 85 6.11 1.97 8.08 8 8.15 246 0.13 123 88 15.25 0.43 16050
EHRC050 85 86 6.54 2.26 8.80 8.9 7.8 258 0.12 153 102 9.54 0.44 8110
EHRC050 86 87 5.54 1.84 7.38 6.4 5.45 174 0.11 193 74 5.8 0.41 4990
EHRC050 87 88 4.87 1.92 6.79 5.6 4.65 167 0.13 165 64 6.42 0.47 6710
EHRC050 88 89 3.96 1.84 5.80 4.9 3.86 143 0.1 137.5 50 6.04 0.46 6940
EHRC050 89 90 3.18 1.61 4.79 3.9 2.66 112 0.11 114.5 38 4.76 0.52 6050
EHRC050 90 91 1.22 0.25 1.47 <0.5 0.54 50 8.15 32.4 13 3.53 5.23 8930
EHRC050 91 92 1.26 0.16 1.42 <0.5 0.75 42 12 26.7 20 4.46 7.35 8550
EHRC050 92 93 0.85 0.29 1.14 0.9 0.86 53 12 22 43 3.64 7.33 4540
EHRC050 93 94 0.32 0.07 0.38 <0.5 0.27 56 14.85 7.4 149 1.75 8.95 2820
EHRC050 94 95 0.24 0.06 0.30 <0.5 0.24 29 14.9 6.3 93 1.52 9.05 2460
EHRC050 95 96 0.23 0.04 0.27 <0.5 0.26 41 14 6.7 205 1.42 8.54 2170
EHRC050 96 97 0.15 0.04 0.19 <0.5 0.21 13 14.05 4.6 174 1.39 8.45 2280
EHRC050 97 98 0.95 0.12 1.06 0.5 0.84 18 12.3 24.3 144 1.85 7.41 2790
EHRC050 98 99 2.19 0.31 2.50 1.4 2.21 62 11.2 49.3 130 3.67 6.58 4520
EHRC050 99 100 0.80 0.17 0.96 <0.5 1.02 32 13.9 18.1 35 2.72 8.16 3740
EHRC050 100 101 0.30 0.09 0.38 <0.5 0.48 41 9.6 7.2 129 1.91 5.72 2890
EHRC050 101 102 0.35 0.12 0.48 <0.5 0.5 18 10.55 8.5 45 2.48 6.19 3920

Table 4 RC Drill Hole EHRC044 Assay Results

Hole_ID mFrom mTo Zn_% Pb_% Zn+Pb% Ag_ppm S_% As_ppm Ca_% Cd_ppm Cu_ppm Fe_% Mg_% Mn_ppm
EHRC044 0 4 0.01 0.01 0.02 <0.5 0.06 30 0.15 0.5 29 20 0.5 919
EHRC044EHRC044 48 812 0.010.04 0.010.01 0.010.04 <0.5<0.5 0.050.06 3632 0.030.03 0.51.2 2223 27.418.8 0.221.24 4801320
EHRC044 12 16 0.02 0.00 0.02 <0.5 0.04 7 0.02 <0.5 10 3.52 0.39 325
EHRC044 16 20 0.02 0.00 0.02 <0.5 0.04 9 2.69 5.8 10 4.09 2.06 151
EHRC044 20 24 0.03 0.01 0.04 <0.5 0.04 16 9.75 12.9 16 3.68 6.27 572
EHRC044 24 28 0.16 0.01 0.17 <0.5 0.16 28 1.2 3.4 29 7.78 1.23 3120
EHRC044 28 30 0.08 0.01 0.09 <0.5 0.13 24 0.6 1.1 17 8.56 0.59 884
EHRC044EHRC044 3031 3132 0.080.07 0.010.01 0.090.08 <0.5<0.5 0.170.13 3531 0.190.14 <0.5<0.5 1411 10.27.43 0.310.16 559196
EHRC044 32 33 0.03 0.01 0.04 0.5 0.08 14 0.02 <0.5 11 2.79 0.06 130
EHRC044 33 34 0.03 0.02 0.05 <0.5 0.1 11 0.04 <0.5 11 2.84 0.09 137
EHRC044 34 35 0.14 0.03 0.17 <0.5 0.12 129 0.03 <0.5 61 31.5 0.13 1990
EHRC044 35 36 0.13 0.03 0.16 <0.5 0.1 100 0.02 <0.5 55 46.2 0.13 1950
EHRC044 36 37 0.18 0.03 0.21 <0.5 0.17 62 0.04 <0.5 36 31.8 0.27 2850
EHRC044 37 38 0.14 0.01 0.16 <0.5 0.19 25 0.03 <0.5 14 11.55 0.62 908
EHRC044EHRC044 3839 3940 0.120.25 0.010.02 0.130.27 <0.5<0.5 0.150.15 2572 0.020.02 <0.5<0.5 17117 14.633.9 0.70.48 5513950
EHRC044 40 41 0.20 0.02 0.22 <0.5 0.13 31 0.03 <0.5 28 26.1 0.57 4430
EHRC044 41 42 0.20 0.03 0.23 <0.5 0.18 33 0.04 <0.5 30 38.1 0.34 7320
EHRC044 42 43 0.17 0.02 0.19 <0.5 0.18 21 0.03 <0.5 19 35.3 0.29 3080
EHRC044 43 44 0.11 0.01 0.13 <0.5 0.13 14 0.02 <0.5 12 23.9 0.17 1470
EHRC044 44 45 0.08 0.01 0.09 <0.5 0.1 15 0.01 <0.5 8 15.3 0.13 1080
EHRC044EHRC044 4546 4647 0.070.04 0.030.05 0.100.09 <0.5<0.5 0.110.11 1415 0.020.02 <0.5<0.5 2419 6.864.92 0.290.56 9251140
EHRC044 47 48 0.07 0.10 0.17 <0.5 0.12 29 0.02 <0.5 35 7.86 0.54 4050
EHRC044 48 49 0.08 0.09 0.17 <0.5 0.13 35 0.02 0.6 37 10.65 0.64 2490
EHRC044 49 50 0.11 0.08 0.20 <0.5 0.12 36 0.02 1.5 39 8.26 0.58 3320
EHRC044 50 51 0.21 0.30 0.51 <0.5 0.15 134 0.02 3.5 59 17.9 0.46 8160
EHRC044 51 52 0.14 0.19 0.33 <0.5 0.18 94 0.03 <0.5 41 12.95 0.47 2990
EHRC044 52 53 0.21 0.16 0.37 <0.5 0.18 104 0.03 <0.5 57 15.45 0.47 1190
EHRC044EHRC044 5354 5455 0.270.22 0.200.18 0.470.40 <0.5<0.5 0.190.17 10293 0.040.03 <0.5<0.5 6556 15.313.7 0.50.49 1050756
EHRC044 55 56 0.42 0.25 0.66 <0.5 0.14 138 0.04 <0.5 83 34.1 0.28 307
EHRC044 56 57 0.36 0.18 0.54 8 0.54 126 0.07 1.6 58 19.5 0.39 290
EHRC044 57 58 0.43 0.22 0.65 6.3 0.37 112 0.04 0.6 50 27.1 0.32 206
EHRC044 58 59 0.42 0.21 0.63 4 0.26 93 0.05 <0.5 65 29.2 0.34 250
EHRC044 59 60 0.32 0.16 0.48 5.5 0.32 70 0.07 <0.5 46 22.2 0.36 339
EHRC044EHRC044 6061 6162 0.711.68 0.521.15 1.232.83 4.55.2 1.884.02 6999 0.050.09 11.530.6 6472 13.0511.4 0.480.54 243165
EHRC044 62 63 2.84 1.84 4.68 7.6 4.32 200 0.04 54.2 54 6.62 0.72 146
EHRC044 63 64 3.39 1.39 4.78 6.9 3.55 169 0.14 60.3 46 10.7 0.67 6920
EHRC044 64 65 3.17 0.53 3.70 3.8 1.64 94 0.18 60.4 24 24 0.53 24700
EHRC044 65 66 3.29 0.31 3.60 2.7 0.64 88 0.19 65.4 21 25 0.49 28800
EHRC044 66 67 3.83 0.40 4.23 2 1.5 75 0.2 75.7 18 28.9 0.46 33200
EHRC044EHRC044 6768 6869 5.135.03 0.260.44 5.395.47 1.63.5 0.472.02 76114 0.190.17 124122.5 1221 26.225.8 0.50.54 3760032600
EHRC044 69 70 1.46 0.13 1.59 1.3 0.64 85 0.17 33.9 22 16.8 0.35 9520
EHRC044 70 71 5.56 0.33 5.89 1.8 0.58 88 0.21 184 18 22.8 0.5 36100
EHRC044 71 72 5.79 0.31 6.10 1.5 0.36 57 0.24 164.5 10 23.7 0.54 38700
EHRC044 72 73 5.79 0.43 6.22 4.6 2.01 127 0.19 164.5 27 25.1 0.44 34700
EHRC044 73 74 5.44 0.27 5.71 3.8 1.9 105 0.16 173.5 31 25 0.54 39900
EHRC044EHRC044 7475 7576 3.733.86 1.110.86 4.844.72 17.613.9 3.783.57 10891 0.150.16 77.374.9 4036 14.415.85 0.670.69 2180025600
EHRC044 76 77 3.58 0.74 4.32 7.7 2.5 97 0.2 93.1 30 13.55 0.65 23300
EHRC044 77 78 2.40 0.74 3.14 6.3 1.9 118 0.15 53.1 28 6.92 0.7 11750
EHRC044 78 79 1.38 0.89 2.27 10.1 1.41 124 0.13 26.4 25 2.81 0.67 3370
EHRC044 79 80 1.89 0.14 2.03 1.3 0.36 121 0.13 25.5 12 10.6 0.78 16200
EHRC044 80 81 5.67 0.24 5.91 1.5 0.36 51 0.19 138.5 8 26.5 0.44 40500
EHRC044EHRC044 8182 8283 2.880.97 0.200.06 3.081.02 1.2<0.5 0.340.17 12065 0.140.11 75.527.7 135 12.54.98 0.570.67 192007870
EHRC044 83 84 0.91 0.08 1.00 <0.5 0.35 71 0.62 21.6 5 3.79 1.01 5660
EHRC044 84 85 0.49 0.12 0.61 0.9 0.42 40 13.55 7.6 6 1.35 8.59 2410
EHRC044 85 86 0.44 0.02 0.46 0.8 0.39 48 13.7 6.8 6 1.82 8.67 3120
EHRC044 86 87 0.46 0.04 0.50 0.7 0.4 50 15.85 7.3 9 1.21 9.68 2090
EHRC044 87 88 0.81 0.08 0.89 1.1 0.52 23 12.85 15 11 2.69 8.15 2650
EHRC044EHRC044 8889 8990 0.540.48 0.070.05 0.600.52 0.90.9 0.330.29 1527 13.5512.4 10.18.7 79 1.561.69 8.37.84 26502860
EHRC044 90 91 0.16 0.04 0.19 <0.5 0.21 36 10.3 2.7 11 3.83 6.52 1900
EHRC044 91 92 0.49 0.04 0.53 0.9 0.42 101 9.36 10.4 59 2.54 6.04 3680
EHRC044 92 93 0.25 0.03 0.29 0.7 0.25 21 14.6 4.9 61 1.93 9.09 2760
EHRC044 93 94 0.42 0.06 0.48 1 0.5 127 12.55 7.8 159 2.12 7.72 3110
EHRC044 94 95 0.42 0.07 0.48 0.9 0.55 26 4.88 7.9 184 3.11 3.31 2040
EHRC044 95 96 0.51 0.08 0.60 1.1 0.66 21 6.68 9.7 208 2.45 4.21 2780

Section 1 Sampling Techniques and Data

Criteria JORC Code explanation Commentary
Samplingtechniques •Nature and quality of sampling (e.g. cut channels,random chips, or specific specialised industrystandard measurement tools appropriate to theminerals under investigation, such as down holegamma sondes, or handheld XRF instruments, etc.).These examples should not be taken as limiting thebroad meaning of sampling.•Include reference to measures taken to ensuresample representivity and the appropriate calibrationof any measurement tools or systems used.•Aspects of the determination of mineralisation thatare Material to the Public Report.•In cases where 'industry standard' work has beendone this would be relatively simple (e.g. 'reversecirculation drilling was used to obtain 1 m samplesfrom which 3 kg was pulverised to produce a 30 gcharge for fire assay'). In other cases moreexplanation may be required, such as where there iscoarse gold that has inherent sampling problems.Unusual commodities or mineralisation types (e.g.submarine nodules) may warrant disclosure ofdetailed information. •RC sampling completed on 1mintervals using Metzke Static conesplitter is dry. If wet, samplecollected in large polywoven, thenallowed to dry for 24 hrs. Samplingwas by spear along inside of bag.•Weight of sample was on average>2kg.Samples sent to ALS, Malaga,•Perth, WA and are being assayedusing a four acid digest and read byICP-AES analytical instrument.
Drillingtechniques •Drill type (e.g. core, reverse circulation, open-holehammer, rotary air blast, auger, Bangka, sonic, etc.)and details (e.g. core diameter, triple or standardtube, depth of diamond tails, face-sampling bit orother type, whether core is oriented and if so, by whatmethod, etc.) •RC face hammer sampling (5.5indiameter). Rig used was an AtlasCopco 220 with 1250cfm air and435psi compressor.
Drill samplerecovery •Method of recording and assessing core and chipsample recoveries and results assessed.•Measures taken to maximise sample recovery andensure representative nature of the samples.•Whether a relationship exists between samplerecovery and grade and whether sample bias mayhave occurred due to preferential loss/gain offine/coarse material. •RC drilling cuttings were collectedas 1 metre intervals withcorresponding chip tray interval keptfor reference.•In general the dry sample versusthe wet sample weight did not varyas the wet sample was collected ina polyweave bag which allowedexcess water to seep and kept thedrill cutting fines intact in the bag.
Logging •Whether core and chip samples have beengeologically and geotechnically logged to a level ofdetail to support appropriate Mineral Resourceestimation, mining studies and metallurgical studies.•Whether logging is qualitative or quantitative innature. Core (or costean, channel, etc.) photography.•The total length and percentage of the relevantintersections logged. •Each metre was geologically loggedwith a magsus reading and pXRFreading.•All drill cuttings logged.
Subsamplingtechniquesand samplepreparation •If core, whether cut or sawn and whether quarter, halfor 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 andappropriateness of the sample preparation technique.•Quality control procedures adopted for all subsampling stages to maximise representivity ofsamples.•Measures taken to ensure that the sampling isrepresentative of the in situ material collected,including for instance results for fieldduplicate/second-half sampling. •Each metre was analysed by aVanta pXRF. The Vanta usedstandards (CRM).•If the assay response was>1000ppm Zn, a sample (>2kg) wastaken and delivered to ALS for wetanalysis.•Sampling QA/QC involved aduplicate taken every 20m, and astandard taken every 20m. 4standards (OREAS CRMs) levelsand one blank were used randomly.
Criteria JORC Code explanation Commentary
Whether sample sizes are appropriate to the grain
size of the material being sampled.
Qualityof•assaydataandlaboratory•tests• The nature, quality and appropriateness of theassaying and laboratory procedures used andwhether the technique is considered partial or total.For geophysical tools, spectrometers, handheld XRFinstruments, etc., the parameters used in determiningthe analysis including instrument make and model,reading times, calibrations factors applied and theirderivation, etc.Nature of quality control procedures adopted (e.g.standards, blanks, duplicates, external laboratorychecks) and whether acceptable levels of accuracy(i.e. lack of bias) and precision have beenestablished. •The assigned assaying methodology(4 acid) is total digest.•Asdiscussed,theVantapXRFanalyser was used to threshold thecollectionofsamplesforwetanalysis.•InadditiontoRumblesQA/QCmethods (duplicates, standards andblanks), the laboratory has additionalchecks.
Verification•of samplingand•assaying•• The verification of significant intersections by eitherindependent or alternative company personnel.The use of twinned holes.Documentation of primary data, data entryprocedures, data verification, data storage (physicaland electronic) protocols.Discuss any adjustment to assay data. •Significant intersections reported bycompany personnel only.•No twin holes were completed.•Documentationandreviewisongoing.Priortofinalvetting,entered into database.
Locationof•data points•• Accuracy and quality of surveys used to locate drillholes (collar and down-hole surveys), trenches, mineworkings and other locations used in MineralResource estimation.Specification of the grid system used.Quality and adequacy of topographic control. •All drillhole collars surveyed usinghandheld GPS – Datum is MGA94Zone 51.
Data•spacing and•distribution• Data spacing for reporting of Exploration Results.Whether the data spacing and distribution is sufficientto establish the degree of geological and gradecontinuity appropriate for the Mineral Resource andOre Reserve estimation procedure(s) andclassifications applied.Whether sample compositing has been applied. •No resource work completed. Thedrilling is reconnaissance by naturewith drill hole spacing on average500m x 100m apart.•Single metre and composites used.
Orientation•ofdatainrelationtogeologicalstructure•Sample• Whether the orientation of sampling achievesunbiased sampling of possible structures and theextent to which this is known, considering the deposittype.If the relationship between the drilling orientation andthe orientation of key mineralised structures isconsidered to have introduced a sampling bias, thisshould be assessed and reported if material.The measures taken to ensure sample security. •Previous drilling (and historic) hasdefined a consistent flat lyingsedimentary package.•Drilling is normal (90°) to themineralised intersections. Truewidth reported. No bias.All sampling packaging and security•
security completed by Rumble personnel,from collection of sample to deliveryat laboratory.
Auditsor•reviews The results of any audits or reviews of samplingtechniques and data. No audits completed.•

Section 2 Reporting of Exploration Results

Criteria JORC Code explanation Commentary
Mineraltenementandlandtenurestatus •Type, reference name/number, location andownership including agreements or material issueswith third parties such as joint ventures,partnerships, overriding royalties, native titleinterests, historical sites, wilderness or nationalpark and environmental settings.• •The Earaheedy Project comprisesof a granted exploration license –E69/3464 (75% Rumble and 25%Zenith Minerals) and oneexploration license applicationELA69/3787 (100% Rumble)
The security of the tenure held at the time ofreporting along with any known impediments toobtaining a licence to operate in the area. E69/3464 is in a state of good•standing and has no knownimpediments to operate in the area.
Explorationdone by otherparties •Acknowledgment and appraisal of exploration byother parties. •Exploration solely completed byRumble Resources
Geology •Deposit type, geological setting and style ofmineralisation. •The Earaheedy Project Deposittype is unconformity relatedsandstone hosted Zn-Pb type. AlsoMVT (Mississippi Valley Type) styleassociated with carbonates hasbeen identified. Current work byRumble has identified unconformityrelated sandstone hosted Zn Pbtype.
DrillholeInformation •A summary of all information material to theunderstanding of the exploration results including atabulation of the following information for allMaterial drill holes:oeasting and northing of the drill hole collaroelevation or RL (Reduced Level – elevationabove sea level in metres) of the drill hole collarodip and azimuth of the holeodown hole length and interception depthohole length.•If the exclusion of this information is justified on thebasis that the information is not Material and thisexclusion does not detract from the understandingof the report, the Competent Person should clearlyexplain why this is the case. •Table 1 – Exploration Target•Table 2 – RC Drill Hole Location•Table 3 – RC Drill Hole EHRC050Geology and Results•Table 4 – RC Drill Hole EHRC044Geology and ResultsASX – Drilling Commenced at•Earaheedy Zinc Project – 25thMarch 2021
Dataaggregationmethods •In reporting Exploration Results, weightingaveraging techniques, maximum and/or minimumgrade truncations (e.g. cutting of high grades) andcut-off grades are usually Material and should bestated.•Where aggregate intercepts incorporate shortlengths of high-grade results and longer lengths oflow-grade results, the procedure used for suchaggregation should be stated and some typicalexamples of such aggregations should be shown indetail.•The assumptions used for any reporting of metalequivalent values should be clearly stated. •Historic drilling cut-off grades usedinclude:o0.5% Zno0.5% Zn + Pbo>0.1% Zn•The Zn:Pb ratio is variable over theproject area. On average the Zn:Pbratio is 3. >0.1% Zn cutoff wasused to demonstrated continuity ofmineralised trends. Note –exploration is reconnaissance andinitially testing undrilled areas.•Historic drilling – if diamond drillingor RC composite – weightedaverage used.
Relationshipbetweenmineralisationwidthsandinterceptlengths •These relationships are particularly important in thereporting of Exploration Results.•If the geometry of the mineralisation with respect tothe drill hole angle is known, its nature should bereported.•If it is not known and only the down hole lengthsare reported, there should be a clear statement to •Drilling is vertical. Mineralisation isflat. Width of mineralisation is truewidth

Criteria JORC Code explanation Commentary
this effect (e.g. 'down hole length, true width notknown').
Diagrams •Appropriate maps and sections (with scales) andtabulations of intercepts should be included for anysignificant discovery being reported These shouldinclude, but not be limited to a plan view of drillhole collar locations and appropriate sectionalviews. •Image 1 - Massive Sphalerite – RCChips – EHRC050 (80 – 81m)•Image2-EHRC050RCDrillSection – Geology with Results•Image3-EHRC044RCDrillSection – Geology with ResultsImage 4 -Chinook Prospect –Location Plan with Drill Hole Statusand IntersectionsImage5-ChinookProspectStacked Sections•Image 6 - Earaheedy Project WithRegional Geology and ProspectLocations
Balancedreporting •Where comprehensive reporting of all ExplorationResults is not practicable, representative reportingof both low and high grades and/or widths shouldbe practiced to avoid misleading reporting ofExploration Results. •Tables 3 and 4 present all assaysfor drill holes EHRC050 andEHRC044
Othersubstantiveexplorationdata •Other exploration data, if meaningful and material,should be reported including (but not limited to):geological observations; geophysical surveyresults; geochemical survey results; bulk samples –size and method of treatment; metallurgical testresults; bulk density, groundwater, geotechnicaland rock characteristics; potential deleterious orcontaminating substances. pXRF analyser is used only to•gauge >1000ppm Zn. If sample is>1000ppm Zn and/or within amineralised section, 1m RCsamples are sent for wet analysis(4 acid digest multi-element)
Further work •The nature and scale of planned further work (e.g.tests for lateral extensions or depth extensions orlarge-scale step-out drilling).•Diagrams clearly highlighting the areas of possibleextensions, including the main geologicalinterpretations and future drilling areas, providedthis information is not commercially sensitive. •Diamond drilling planned to followup current RC drill program•RC drilling programme to extendmineralisation along strike