Announcement PDF ASX Announcement 25 June 2025 Exploration Update of the Central Yilgarn and Laverton Projects Highlights • Within the Central Yilgarn Project an initial RC drilling program is planned to commence in 2H 2025. • Seven exciting walk up drill targets have shown proven mineralisation containing several high-grade intercepts not followed up. • Several robust, high tenor gold in soil anomalies can be enhanced with additional sampling. • At Laverton, a significant zone of gold mineralisation was identified from aircore drilling along the interpreted position of the regionally significant and mineralised Barnicoat Shear Zone. • Also, at Laverton a high-grade REE intersection is particularly significant with a 4m zone over 10,000ppm TREO (1%). Catalina Resources Ltd (ASX: CTN) (‘Catalina’ or the ‘Company’) acquired the Yerilgee and Evanston greenstone belts in January 2025 from the wholly owned subsidiary of Dreadnought Resources Limited (DRE), Dreadnought Exploration Pty Ltd (“Dreadnought”)1. These Projects (Figure 1) are located within an underexplored region of the world-renowned Yilgarn Craton, approximately 190 km to the northwest of Kalgoorlie and 160 kms southwest of Leonora. The project area covers an area of over 650 km2, and over approximately 65 km of strike, along the Yerilgee and Evanston greenstone belts. The tenements present a rare exploration play over multiple greenstone belts with proven mineralisation potential for gold, iron ore, lithium, nickel and Cu-Zn-Ag massive sulphides. With several high-grade gold targets identified and minimal follow-up to date, the exploration potential is considered by CTN to be significant. Following a technical review of the voluminous database drill targets have been generated in the Yerilgee and Evanston greenstone belts with an RC drill program planned to commence in 2H, 2025. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : Level 2, 7 Havelock St West Perth WA 6005 Page 1 of 25 catalinaresources.com.au Figure 1 – Regional locations of the Yerilgee and Evanston Projects Yerilgee Project The exposed Yerilgee Greenstone Belt, which has been subjected to multistage deformation and shearing, is composed of typical greenstone lithologies comprising basalts, ultramafic volcanics, sediments, banded iron formations and granites. It hosts three primary camp-scale gold targets: T6, T8, and T11, illustrated in Figure 2. T6 Gold Camp (Figure 2). Defined by anomalous gold and pathfinder soil geochemical anomalies over an area of 5,000m x 3,000m, illustrated in Figure 3. Within the T6 Gold camp, Chicken Little is a ~1,500m x ~300m Au-As-Sb-Pb-Zn-Ag soil Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 2 of 25 catalinaresources.com.au anomaly along an intrusive contact of BIFs-ultramafic and lamprophyre intrusions into a sediment package with felsic porphyries. Multi-element geochemistry at T6 suggests a fractionated intrusion-related hydrothermal system with the pathfinder geochemical gradient transitioning from Mo-W, associated with a major felsic intrusion, to Bi-Te and As-Sb. Figure 2 – Regional geological interpretation of the Yerilgee Greenstone Belt. It hosts three primary camp-scale gold targets: T6, T8, and T11. The T6 Gold Camp contains the Chicken Little, Snowflake and Megatron drill targets In 2018, gold was identified at surface by DRE during soil sampling and subsequent drilling produced significant gold intercepts at Chicken Little including: • • BARAC0477: 24m @ 1.6 g/t Au from 0m and 9m @ 3.3g/t Au from 12m ². BARRC025: 45m @ 0.4g/t Au from 6m, including 8m @ 0.9 g/t Au and 52.8 g/t Ag from 10m ². In 2024 follow up drilling by DRE (2 RC holes, 270m) intersected a ~40m wide strongly sulphidised and variably oxidized banded iron formation (“BIF”) horizon with an internal felsic schist that is interpreted to be either highly altered Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 3 of 25 catalinaresources.com.au sedimentary rock or a small felsic porphyry. This horizon appears to be a key structural component to the mineralisation at Chicken Little (see Figure 4). In addition, variable weak to moderate quartz veining with associated sulphides was observed. Both holes intersected significant Au-Ag mineralisation including: • CYRC012: 17m @ 4.1 g/t Au and 28.0 g/t Ag from 53m, including: 4m @ 14.9 g/t Au and 72.2 g/t Ag from 54m ³. • CYRC013: 7m @ 0.2 g/t Au, 56 g/t Ag from 82m ³. RC drilling at Chicken Little will focus upon the down dip and potential plunge of the identified mineralisation. Figure 3 – T6 Gold Camp: Prospects are defined by very anomalous gold and pathfinder soil geochemistry Also, within the T6 prospect, are the Snowflake and Megatron targets, illustrated in Figure 2. Both have clearly defined robust anomalous gold in soil geochemistry, illustrated in Figure 3. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 4 of 25 catalinaresources.com.au Megatron is identified by an intense ~600m x 400m gold in soil anomaly associated with major cross cutting structures and multiple phases of felsic and mafic intrusions. Gold mineralisation appears to be associated with a strong carbonate and sulphide altered felsic porphyry. RC drilling by DRE in 2024 reported • • 9m @ 2.6 g/t Au from 23m, including 3m @ 7.1 g/t Au ⁴. 11m @ 0.34 g/t Au from 21m, including 3m @ 1.2 g/t Au⁴. Figure 4 – Drilling section for RC hole CYRC012 at Chicken Little North Snowflake was identified by a ~800m x 200m gold and bismuth in soil anomaly associated with a secondary N-S trending structure, a significant 180m long quartz blow and felsic intrusions. High grade gold mineralisation from aircore drilling in 2024 (16m @ 1.9 g/t Au from 0m, including 4m @ 8.5 g/t Au from STKAC0118) was hosted within a near surface 1-2m quartz vein within an intensely sericite carbonate altered felsic porphyry ⁴. These results are highly encouraging and will result in a strong focus on the T6 Gold camp. T8 Gold Camp: The T8 Gold Camp (located in Figure 2) is focussed upon a significant domal structure clearly indicated in magnetic and gravity geophysics. (see Figure 9). It was defined by a 1.7km x 400m gold-in-soil anomaly associated with As-Sb-Bi-Mo-W pathfinders. Drilling in 2018 identified an anticlinal closure of a banded iron formation (BIF) which had been replaced by pyrite, arsenopyrite and quartz in three holes, and had been intruded by a felsic porphyry along a major regional lineament. RC drilling by DRE returned significantly wide intercepts including: Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 5 of 25 catalinaresources.com.au • • 17m @ 0.7 g/t Au from 22m, including 8m @ 1.2 g/t Au from 27m and 14m @ 0.3 g/t Au from 60m in BARRC015 ². 10m @ 0.8 g/t Au, including 1m @ 6 g/t Au, from 11m and 27m @ 0.4 g/t Au from 40m in BARRC014 ². A supergene gold blanket present in holes BARAC012, BARAC013, BARAC014, averaging 0.5g/t Au, overlies the target zone illustrated in Figure 5. Figure 5. T8 Gold Prospect drill section Evanston Project The northeasterly trending Evanston Greenstone Belt (see Figure 1 for location), is a strongly faulted and deformed belt, contained within the Evanston Shear Zone. Quartz veins are common and intrude all exposed rock types. Large quartz veins, up to 40 m thick, are parallel to the regional fabric of the shear zone and traceable over several hundred metres. Lithologies include basalts, ultramafics, banded iron formation, sediments and felsic intrusions. The Evanston Greenstone Belt currently contains two main camp-scale gold targets: T1 and T2, (see Figure 6) with proven mineralisation and significant high-grade intercepts that have yet to be followed up. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 6 of 25 catalinaresources.com.au Figure 6 – Regional geological interpretation of the Evanston Greenstone Belt. Showing two primary camp-scale gold targets T1 and T2 T1 Gold Camp, Viper Prospect, located in Figure 6. Sequence of high magnesium basalts, ultramafic rocks and banded iron formation, with minor sediments situated along the regional scale Evanston Shear Zone which has been intruded by felsic to intermediate intrusions. Significant gold-in-soil anomalies and historical gold working situated along the main banded iron formation horizon and immediately surrounding rocks. Significant 1,500m x 800m in soil Au-As-Sb anomaly and historical gold workings (Rainy Rocks, Liberty) are situated along the main banded iron formation horizon. Figure 7 illustrates a summary of the exploration completed at the Viper drill target. Key drill intersections include ⁵. • • 15m @ 1.5 g/t Au from 12m, including 3m @ 6.7 g/t Au in aircore hole BARC0136. 33m @ 0.3 g/t Au, incl. 3m @ 0.9 g/t Au in aircore hole BARAC0945. Only 3 RC holes have been drilled at Viper. Significant intercepts remain open and represent exciting walk up drill targets for CTN. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 7 of 25 catalinaresources.com.au Figure 7 – Exploration summary diagram of the Viper Prospect. Underlaying image is the regional aeromagnetic image. T2 Gold Camp, Figure 6: It is dominated by a large regional north-plunging syncline and contains minor felsic intrusions and pegmatites. At Leghorn, mapping by the GSWA in 2001 (Greenfield, 2001) identified extensive vein networks and significant rutile, sphene, and perovskite in outcropping calc-silicate lithologies. These minerals can contain major amounts of Nb, Ta, Ce, Ti and Rare Earth elements (REEs). This camp includes significant gold-in-soil anomalies and historical gold workings along major structural trends. Within the calc silicate outcrops at Leghorn soil sampling, RC and aircore drilling have been completed⁵. Notable intercepts at Leghorn include: • • • 48m @ 0.6 g/t Au from 27m, including 21m @ 1.3 g/t Au in hole BARRC07 ⁸. 34m @ 0.5 g/t Au from 32m, including 1m @ 2.88 g/t Au in BARRDD02 ⁸. 7m @ 0.79% Cu, including 2m of 2.1% Cu, 535 ppb Au, 4 ppm Mo and 17.4 g/t Ag in RC hole BARRC01⁸ An exploration summary of the work conducted within the Leghorn project is illustrated in Figure 8. A structural trend containing several mineralised drill holes including BARRC001, BARAC0856 and BARRC07 is supported by anomalous Au, Ag, Mo and Cu soil geochemistry. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 8 of 25 catalinaresources.com.au At Erk, located 2 kms east of Leghorn in Figure 8, a 3km-long North-trending gold-in-soil anomaly overlays a sheared granite and calc-silicate package. Drilled as a first-pass small AC program in 2023, with all drill lines intersecting gold mineralisation, it remains open to the west, north and south. Numerous nugget patches exist at Erk and more are found every year by local prospectors. The geochemical attributes and gravity features occurring within calc silicate lithologies suggest a bulk tonnage Au-Cu mineralisation model including potentially lucrative skarn style mineralisation may be applicable at Leghorn. Gold in quartz vein hosted shear zones are applicable at Erk. Figure 8 – Exploration summary of the Leghorn Prospect A 2 km long structural trend of anomalous Cu and Au soil and drilling geochemistry Soil Geochemistry Whilst previous drilling has provided abundant follow-up drill targets, the acquired database containing over 20,000 soil samples and 700 rock chip samples will provide a steady pipeline of new drill targets. As the terrain is amenable to soil geochemistry, with minor amounts of transported cover masking the underlying weathered bedrock, soil sampling is an extremely cost-effective target generation tool. The T8 Gold camp (discussed above) is located on the margin of a significant combined gravity and aerial magnetic dome (T8 Dome) illustrated in Figure 9. The domal feature may be due to a deeply buried granitic intrusve. In addition to the T8 soil anomaly, which identified the T8 prospect and is discussed above, two additional high tenor gold in soil anomalies have been identified in locations around the dome margins. These soil anomalies remain open along strike Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 9 of 25 catalinaresources.com.au and further extensional and in-fill soil sampling is warranted to refine and extend these anomalies. They are highly anticipated future drill targets for Catalina Resources. Figure 9 – The T8 Gold Prospect is located on the margins of a significant gravity and aerial magnetic dome structure (T8 Dome). Two additional significant gold in soil anomalies have been identified in locations around the dome margins and are not drilled. The background image is regional aeromagnetic image. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 10 of 25 catalinaresources.com.au Laverton Gold Project Aircore drilling by CTN was completed at the Laverton Project (E38/3697) in September 2024 (Figure 10). The Laveton Project is located within the Laverton Gold Province, an exceptionally mineralised terrain in the Eastern Goldfields. The region hosts several world class deposits of gold, nickel and rare earth elements (REEs) including Sunrise Dam, Wallaby, Granny Smith and the Mt Weld REE deposit, one of the highest grade REE deposits in the world. Drilling focussed upon the Barnicoat Shear Zone and its interpreted position within E38/3697 illustrated in Figure 11. The Barnicoat Shear Zone is a significantly mineralised structure with several moderate size gold deposits scattered along its length, illustrated in Figure 11. It is interpreted to pass through E36/3697, where it has been the focus of exploratory drilling by Catalina. Figure 10 – Regional location diagram of the Laverton Gold Project Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 11 of 25 catalinaresources.com.au A significant zone of gold mineralisation was identified in hole LVAC049, near the interpreted position of the Barnicoat Shear Zone, see Figure 11 and 12. Best assay results from analysis of the 1m splits using a Fire Assay method are as follows ⁷: • LVAC049: 28m @ 1.09g/t Au from 57, Including 1m @ 9.69g/t Au from 57m. This broad intersection of supergene gold mineralization with a high-grade zone of 1m @ 9.69g/t Au occurs within lower saprolitic clay but is interpreted to be located directly above the bedrock source of the gold mineralization. The gold intersection in LVAC049 is considered significant because it supports the visual observations of veining and alteration logged in bottom of hole samples. Importantly, hole LVAC012 located 50m to the east intersected altered and veined sediments at bottom of hole indicative of a hydrothermal system. The drilling cross section is illustrated in Figure 13. Figure 11 – The north south orientated Barnicoat Shear Zone is a significantly mineralised structure with several significant gold deposits scattered along its length Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 12 of 25 catalinaresources.com.au Figure 12 – Drilling containing anomalous gold intersections outlined in the area marked in red, including LVAC049: (28m @ 1.09g/t Au from 57m) Figure 13 – The drilling cross section for aircore hole LVAC049 Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 13 of 25 catalinaresources.com.au Laverton REE Project Anomalous REE intersections were returned from drilling in the gold target area illustrated in Figure 12. The high-grade intersection in hole LVAC037 on the southernmost aircore traverse is particularly significant with a 4m zone with over 10,000ppm TREO (1%), illustrated in Figure 14. • 9m @ 7,565ppm TREO from 47m in LVAC037 Including: 4m @ 13,406ppm (1.34%) TREO from 49m ₆ The REE assays in LVAC037 contain up to 0.3% NdPr (neodymium and praseodymium), a very high NdPr to total rare earth oxides (“NdPr:TREO”) ratio. These ratios are similar to those encountered in the nearby Mt Weld carbonatite hosted REE deposit which contains a resource of 54.7 Mt @ 5.3% TREO, (Duncan R. K. et al, 1990.). The neodymium magnets made from praseodymium alloy is one of the most powerful and widely used rare earth magnets in electrical motor manufacture, medical science, renewable energy, and high technology equipment (Constable, 2024). Figure 14 – The high-grade intersection in hole LVAC037 is particularly significant with a 4m zone intersecting over 10,000ppm TREO (1%) The source of the REE mineralization is not known as the basement rocks are deeply weathered. However, the drilling was 100m spaced so intrusive dykes related to the Mt. Weld carbonatite may be present. Next Steps The Company is highly encouraged by both the drill targets at the Central Yilgarn Project and the assay results from the follow-up aircore drilling program completed at Laverton. The gold intersection in LVAC049 of 28m @ 1.09g/t Au from 57 Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 14 of 25 catalinaresources.com.au includes 1m @ 9.69g/t Au from 57m and is considered very significant as it supports the visual observations of veining and alteration logged in bottom of hole samples. Very significant REE intersections above 1% TREO were also intersected at Laverton. RC drilling is planned to test the LVAC049 intersection at depth as well as the REE mineralization. RC drilling and soil sampling is also planned for the targets discussed at the Central Yilgarn Project. The release of this document to the market has been authorised by the Board of Catalina Resources Ltd. Contacts Investors / Shareholders Ross Cotton Executive Director T: +61 (0)8 6165 8858 Competent Person Statement The review of historical exploration activities and results contained in this report is based on information compiled by Michael Busbridge, a Member of the Australian Institute of Geoscientists (AIG). He is a consultant to Catalina Resources Ltd. He has sufficient experience which is relevant to the style of mineralisation and types of deposits 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 (the JORC Code). Michael Busbridge has consented to the inclusion in the report of the matters based on his information in the form and context in which it appears. The Company confirms that it is not aware of any new information or data that materially affects the information in the original reports, and that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original reports. Where the Company refers to the Mineral Resources in this report (referencing previous releases made to the ASX), it confirms that it is not aware of any new information or data that materially affects the information included in that announcement and all material assumptions and technical parameters underpinning the Mineral Resource estimate with that announcement continue to apply and have not materially changed. References (ASX): This Report contains information extracted from ASX market announcements reported in accordance with the 2012 edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” (“2012 JORC Code”). Further details (including 2012 JORC Code reporting tables where applicable) of exploration results referred to in this Quarterly Activities Report can be found in the following announcements lodged on the ASX: Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 15 of 25 catalinaresources.com.au ¹ 9/1/2025 2 14/6/2018 3 23/5/2024 ⁴ 8/2/2024 5 5/4/2024 6 3/6/2024 ⁷1/11/2024 Completion of Acquisition of Yerilgee & Evanston (ASX:CTN). (ASX: AMD). Shallow High-Grade gold and silver at Chicken Little. (ASX:DRE). Seven Camp Scale Gold Prospects at Central Yilgarn (100%) Drilling of 4 compelling gold targets commenced - Central Yilgarn. Resampling Upgrades Gold and REE Targets at Laverton (ASX:CTN) Catalina intersects 44m @ 1.01 g/t gold at Laverton. These announcements are available for viewing on the Company’s website. The Company confirms that it is not aware of any new information or data that materially affects the information included in any original ASX announcement. Forward-Looking Statements This announcement contains forward-looking statements that are subject to a range of risks and uncertainties. These statements relate to the Company’s expectations, intentions, or strategies regarding the future. While the Company believes these statements to be reasonable at the time of release, actual events or results may differ materially from those anticipated. Readers are cautioned not to place undue reliance on forward-looking statements and should consider all relevant assumptions and risk factors as disclosed by the Company. References. Constable, T., Australian rare earths and lithium projects set to transform the industry. Media Release. Minerals Council Australia. March 2024. Duncan R K, Willett G C. 1990. Mt Weld Carbonatite. In Hughes F E (ed). 1990. Geology of the Mineral Deposits of Australia and Papua New Guinea. The Aus IMM. Monograph 14 v1 pp591-597. Greenfield, J. E., 2001, Geology of the Lake Giles 1:100 000 sheet: Western Australia Geological Survey, 1:100 000 Geological Series Explanatory Notes, 19p. ABOUT CATALINA RESOURCES LIMITED Catalina Resources Limited is an Australian diversified mineral exploration and mine development company whose vision is to create shareholder value through the successful exploration of prospective gold, base metal, lithium and iron ore projects and the development of these projects into production. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 16 of 25 catalinaresources.com.au JORC Code, 2012 Edition – Table 1 Report Template SECTION 1 SAMPLING TECHNIQUES AND DATA Criteria Sampling techniques JORC Code explanation • • • • Nature and quality of sampling (e.g. 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 (e.g. ‘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 (e.g. submarine nodules) may warrant disclosure of detailed information. Commentary DRE (Central Yilgarn Project) and CTN Laverton Project) conducted aircore and reverse circulation drilling to obtain 1m samples which were placed on the ground from which a scoop was used to composite 3m samples weighing approximately 2‐3kgs being made up equally from each sample pile. RC Drilling (DRE) Two sampling techniques were utilised for the RC program, 1m metre splits directly from the rig sampling system for each metre and 3m composite sampling from spoil piles. Samples submitted to the laboratory were determined by the site geologist. From every metre drilled a 2-3kg sample (split) was subsampled into a calico bag via a Metzke cone splitter from each metre of drilling or taken as a grab sample from the bulk reject in more clay-rich material. All remaining spoil from the sampling system was collected in buckets or green plastic mining bags if wet from the sampling system and neatly deposited in rows adjacent to the rig. An aluminium scoop was used to then sub-sample each spoil pile to create a 2-3kg 3m composite sample in a calico bag. QAQC samples consisting of duplicates, blanks, and CRM’s (OREAS Standards) will be inserted through the program at a rate of 1:50 samples. All samples are submitted to ALS Laboratories in Perth for determination of gold by fire-assay (ALS Method AuICP22). selected samples were also submitted for 48 multi-elements via 4 acid digestion with MS/ICP finish (ALS Code ME-MS61) to assist with lithological interpretation. AC Drilling (DRE) Aircore (AC) chips were collected at 1m intervals. 3m composites were collected by a scoop sample from 1m sample piles. AC samples were collected via a static cone splitter mounted beneath a cyclone return system attached to the drill rig. The static cone splitter produces up to two samples in calico bags and a bulk reject sample, which was collected in a bucket and placed in rows on the pad in 1m intervals. 1m sample splits were collected from the static cone splitter and placed on the sample piles for later analysis. 2‐3 kg samples were collected from the sample piles. Field duplicates were collected on a 1:50 ratio to ensure repeatability of sampling method. CRM standards were inserted on a 1:50 ratio to test the calibration of lab equipment. Sample weights have been recorded and reported by the lab. These samples will be dispatched to ALS Laboratories in Perth for sample preparation and analysis. Catalina Resources Limited ACN 130 618 683 ASX: CTN T: 61 8 6165 8858 E: info@catalinaresources.com.au A : 2/7 Havelock Street West Perth WA 6005 Page 17 of 25 catalinaresources.com.au Criteria JORC Code explanation Commentary 3 kg samples were pulverised to 85% passing 75 micron for an aqua regia digest of an 50g aliquot followed by ICP‐ MS for gold (ALS Code Au‐TL44). If the samples returned values greater than 0.5ppm Au, then a 50g aliquot was fused by fire assay and finished by AAS. AC Drilling (CTN). The drilling contractor was Gyro Drilling from Kalgoorlie. Gyro uses 3m drill rods. Holes were drilled to blade refusal unless excess water was intersected.Hole diameter was 85mm / 3.5”. Aircore drilling uses a three-bladed steel or tungsten drill bit to penetrate the weathered layer of loose soil and rock fragments. The drill rods are hollow and feature an inner tube with an outer barrel (like RC drilling). Aircore drilling uses small compressors (750 cfm/250 psi) to drill holes into the weathered layer of loose soil and fragments of rock. Compressed air is injected into the space between the inner tube and the drill rods inside wall, which flushes the cuttings up and out of the drill hole through the rod’s inner tube, causing less chance of crosscontamination. Gyro used an Air 750 CFM / 250 PSI Sullair Compressor with additional Air Booster Support 750 CFM / 250PSI. Drilling techniques • Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc.). RC Drilling (DRE) Challenge Drilling undertook the program utilising a KWL 380 drill rig with additional air from an auxiliary compressor and booster. Reverse Circulation drilling comprised a 90mm face sampling bit. AC Drilling (DRE) Aircore drilling comprised of a 90mm aircore sampling bit. A smaller drill rig allows for better manoeuvrability in remote drilling areas and lower drilling expenses. AC Drilling (CTN). Gyro used an Air 750 CFM / 250 PSI Sullair Compressor with additional Air Booster Support 750 CFM / 250PSI. Aircore drilling uses small compressors (750 cfm/250 psi) to drill holes into the weathered layer of loose soil and fragments of rock. Compressed air is injected into the space between the inner tube and the drill rods inside wall, which flushes the cuttings up and out of the drill hole through the rod’s inner tube, causing less chance of crosscontamination. 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. RC Drilling (DRE) Drilling was undertaken using a ‘best practice’ approach to achieve maximum sample recovery and quality through the minera