Resolution Minerals Ltd
For the period ended Oct 27, 2026. Filed Oct 27, 2026.
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Oct 27, 2026 · Filed Oct 27, 2026
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Contents
EX-99.1 · Section 1 Sampling Techniques and Data
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| 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. | ● This announcement provides an update of the Company’s 2026 drill program recently completed at its Horse Heaven Project in Idaho, USA, and contains exploration results of three drill holes with the ID reference HH-GG26-031C and HH-GG26-032C. ● Reported exploration results (data) includes: drill hole type, drill hole location (UTM metric) and drill hole parameters (dip, azimuth, altitude and end of hole data); sample data; assay data; and geological data. Supporting data includes drill collar locations in UTM metric data, together with dip, azimuth, altitude and end of hole data. ● Reported assay data is for gold. ● Please note that the primary data of the core samples (start, finish, interval) were converted from imperial feet measurements to metric metres in this announcement. Note that the operating jurisdiction uses imperial measurement system. ● The assay data is derived independent professional laboratory services company of submitted core samples from HH-GG26-031C, HH-GG26-032C and HH-GG26-039C. ● HH-GG26-031C HH-GG26-032C and HH-GG26-039C are diamond core holes. Sample intervals are contiguous and range in length individually from 2.2ft to 5.2ft (averaging 4.5ft). The samples are half-cut core prepared by industry standard core cutting saw by qualified personnel. ● Samples were taken for the majority of the hole depth except where rock voids were encountered. ● Geological data is derived from detailed geological and geotechnical logging by qualified personnel. ● Drill core sample assay results of the above-mentioned holes are included in this announcement. ● References to mineralised intersects are included in this announcement. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Drilling techniques | ● Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg 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). | ● The Drilled Holes are diamond core drill holes that were drilled by Evolve Exploration Ltd using two Multipower MP1500 modular core rigs providing HQ diamond drill core. ● The drill core is oriented. The core orientation method is conducted using the ACTxCore Orientation System. |
| 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. | ● Drill core recovery of the drilled holes have been consistently high (a function of the solid lithologies) approaching 100%. Lower core recovery rates are sometimes observed in fault zones, with the most significant losses usually occurring near the top of the drill hole, close to the collar, with core recoveries of approximately 50% recovery. This lower core recovery represents <1% of the total length of the drill hole. |
| 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. | ● Drill core was logged for lithology, alteration, mineralisation, structure (geotechnical) using oriented core to a level which has enabled preliminary interpretations relating to style of mineralisation, host and thickness. At this stage no Mineral Resource Estimates, mining studies or metallurgical studies are appropriate. ● Drill core is also logged for RQD and Core recovery. ● Drill core is then digitally photographed wet while whole after logging. ● The logging, as described above is both quality and quantitative. ● 100% of the relevant intersections were logged as per above. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| 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 HQ core was halved using a diamond core saw and sampled on geological intervals approximating 0.2m to 1.5m in length. The smallest intervals selected to specifically target mineralised veins have used down to 0.2m intervals. The 1.5 metre interval is most commonly applied across the core. ● Drill core was halved using an electric powered core saw by RML contract staff who maintain possession of the core at its Antimony Camp facility. ● Half-cut core samples were bagged and tagged using bar-coded sample tags and were securely stored prior to shipment at the Antimony Camp facility. ● Half cut core samples were transported by RML contractors under lock and key to ALS prep’ lab’ facility in Twin Falls, ID. No third-party shippers were involved in the shipping process; chain of custody forms were exchanged at ALS Minerals in Twin Falls and a copy kept on file. The remaining boxed cut core are kept at a secure locked facility at Antimony Camp, ID. ● ALS Minerals Twin Falls prep’ lab’ logs in the samples using the sample tag bar codes provided. Samples were then crushed to 70% less than 2mm, rotary split off 250g, pulverise split to better than 85% passing 75 microns. ● All samples were then shipped to ALS Minerals analytical laboratory in Vancouver, British Columbia. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| 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 levels of accuracy (i.e. lack of bias) and precision have been established. | ● Gold was assayed by analytical method Au-AA23: Au by fire assay and AAS 30g nominal sample weight. ● Silver (Ag) analysis was by analytical method ME-ICP61. Multielement analysis was by analytical method ME-ICP61: 34 elements by HF-HNO3-HClO4 acid digestion, HCl leach and ICP-AES. Quantitatively dissolves nearly all elements for the majority of geological materials. Only the most resistive minerals, such as Zircons, are only partially dissolved. ● No geophysical tools, spectrometers, handheld XRF instruments, etc.. were used in the generation of the assay data. ● Certified reference materials (CRM) from an ISO certified supplier were inserted randomly into the sample stream at a ratio of 2%. CRMs were obtained for Meg LLC of Reno, Nevada; two separate CRMs were used for gold: a low grade and high-grade standard. ● Blank material was inserted randomly in the sample stream at a ratio of 2%. Blank material is commercially available pea-gravel that has been previously tested for gold concentrations.t. ● Duplicates samples were collected by quarter cutting the core at randomly selected intervals. Two quarter-cut portions of core were sent for analysis; the remaining half is kept at a secure facility. Core intervals of poor recovery were not used for duplicate samples. Duplicate core samples were inserted into the sample stream at a ratio of 2%. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| 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. | ● No verification of the “significant intersections” has been completed to date by either independent or alternative company personnel. The company acknowledges the material nature of the results and is planning a program of select verification assays. Such were the immediacy of the results, these verifications were not possible prior to the release of the initial results. ● The Company is confident that its sample security processes are adequate for the interim period. ● The announcement details drill holes HH-GG26-031C and HH-GG26-032C. that were drilled on the same platform but were drilled with different directions and dips (Figure 3). By this HH-GG26-031C and HH-GG26-032C, and HH-GG25-006C are fanned holes. No holes are twinned (same collar, same azimuth, same dip). HH-GG26-039C was drilled about 500m north of HH-GG26-031C & HH-GG26-032C. ● Sample results, certificates and results were sent via email to RML site contractors in Antimony Camp where results are analysed and interpreted. ● No assay adjustments have been carried out. |
| 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. | ● The locations of the Drilled Holes were achieved using handheld GPS programmed into the local coordinate system. The accuracy of the GPS is in line with best practice standards. |
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| 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 assay data spacing of HH-GG26-031C HH-GG26-032C and HH-GG26-039C, the length and frequency of each sample and the collective coverage of the drill holes are best practise in terms of hole sample representativeness. ● In terms of geological data spacing associated with the Drilled Holes every metre of these holes was logged, with details of lithology, alteration, mineralisation recorded to sub-metre detail. |
| 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. | ● The Drilled Holes have a drill direction that is approaching perpendicular to the regional trend (lithologically and structurally) and also approaching perpendicular to the known mineralisation. The purpose of the Drilled Holes was to test the possible extension of known gold and tungsten mineralisation at surface at depth along strike from past drill holes and past surface sample results and to test the occurrence of gold in un-oxidised rocks at depth. ● Cautionary Note: There is currently insufficient data pertaining to sampling orientation and the local-scale orientation of mineralisation to determine the true width of the gold intervals in these holes. Additional holes in all directions are required to determine whether the gold mineralisation is broadly pervasive or (to various degrees) spatially constrained. For example, if the gold mineralisation is broadly pervasive, then the gold intervals in this announcement are true widths. If the gold mineralisation is spatially constrained, then the gold intervals in this announcement are not true widths. Based in increasing data, the gold mineralisation is interpreted as being broadly pervasive in association with a structurally-controlled repeating host sequence of country-rock granites and fault breccias |
| Sample security | ● The measures taken to ensure sample security. | ● All drill core samples were delivered directly to RML’s geologists on site where they remain under direct supervision at a secure site. |
| Audits or reviews | ● The results of any audits or reviews of sampling techniques and data. | ● The competent person is unaware of the undertaking of audits or reviews for sampling technique and data, other than its own review. |
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