Pampa Medina Drilling Continues to Validate Sedimentary-Hosted Copper Manto Mannequin

• Nature and high quality of sampling (eg minimize channels, random chips, or particular specialised business customary measurement instruments acceptable to the minerals beneath investigation, akin to down gap gamma sondes, or handheld XRF devices, and so on). These examples shouldn’t be taken as limiting the broad that means of sampling.
• Embody reference to measures taken to make sure pattern representivity and the suitable calibration of any measurement instruments or techniques used.
• Points of the willpower of mineralisation which can be Materials to the Public Report.
• In circumstances the place ‘business customary’ work has been carried out this may be comparatively easy (eg ‘reverse circulation drilling was used to acquire 1 m samples from which 3 kg was pulverised to provide a 30 g cost for hearth assay’). In different circumstances extra rationalization could also be required, akin to the place there may be coarse gold that has inherent sampling issues. Uncommon commodities or mineralisation varieties (eg submarine nodules) could warrant disclosure of detailed data.

All present drilling performed at Sierra Medina (together with Pampa Medina, Pampa Norte Extension and Pampa West) was accomplished beneath the supervision of a registered skilled geologist as a Competent Individual/Certified Individual (QP) who’s accountable and accountable for the planning, execution, and supervision of all exploration exercise in addition to the implementation of high quality assurance packages and reporting.

• Drilling reported is Reverse Circulation “RC” and Diamond (“DDH”) drilling
• Assay samples had been ready at a laboratory web site in Copiapó and assayed by Andes Analytical Assay Ltd. (AAA) in Santiago.
• Sierra Medina´s DDH holes are drilled and sampled on a steady 2-meter foundation, halved by a standard core splitter on web site, with one half despatched to the Andes Analytical Assay preparation laboratory in Copiapó and the pulps then despatched to the identical firm laboratory in Santiago for assaying.
• Marimaca RC holes are drilled and sampled on a steady 2-meter foundation and riffle break up on web site as much as one-eighth (12.5%) of its quantity, after which samples are despatched for preparation and assaying.
• Marimaca employees supervised all of the drilling and sampling.
• DD recoveries had been managed by correct core restoration measurement management was prolonged towards the division course of realized within the drill location.
• DD recoveries had been measured by core size measurement and in contrast with the efficient core run. Marimaca technical employees checked all knowledge.
• Measured recoveries are over 95% for DDH drilling, with out important variations and unrelated to copper grades.
• RC recoveries had been managed by weighing samples and correct management was prolonged towards the division course of realized within the drill location.
• RC recoveries had been measured in weight % as in contrast with a theoretical pattern weight. Marimaca technical employees checked all knowledge.
• Measured recoveries are over 95% for RC drilling, with out important variations and unrelated to copper grades.

• Drill sort (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, and so on) and particulars (eg core diameter, triple or customary tube, depth of diamond tails, face-sampling bit or different sort, whether or not core is oriented and if that’s the case, by what methodology, and so on).

• Drilling reported is each DDH and RC drilling
• DDH drilling is drilled in HQ and NQ customary core diameters

• Technique of recording and assessing core and chip pattern recoveries and outcomes assessed.
• Measures taken to maximise pattern restoration and guarantee consultant nature of the samples.
• Whether or not a relationship exists between pattern restoration and grade and whether or not pattern bias could have occurred resulting from preferential loss/acquire of superb/coarse materials.

• Sierra Medina´s DDH holes are drilled and sampled on a steady 2-meter foundation, halved by a standard core splitter on web site, with one half despatched to the Andes Analytical Assay preparation laboratory in Copiapó and the pulps then despatched to the identical firm laboratory in Santiago for assaying.
• Marimaca RC holes are drilled and sampled on a steady 2-meter foundation and riffle break up on web site as much as one-eighth (12.5%) of its quantity, after which samples are despatched for preparation and assaying.
• Marimaca employees supervised all of the drilling and sampling.
• DD recoveries had been managed by correct core restoration measurement management was prolonged towards the division course of realized within the drill location.
• DD recoveries had been measured by core size measurement and in contrast with the efficient core run. Marimaca technical employees checked all knowledge.
• RC recoveries had been managed by weighing samples and correct management was prolonged towards the division course of realized within the drill location.
• RC recoveries had been measured in weight % as in contrast with a theoretical pattern weight. Marimaca technical employees checked all knowledge.
• Measured recoveries are over 95% for RC drilling, with out important variations and unrelated to copper grades.

• Whether or not core and chip samples have been geologically and geotechnically logged to a stage of element to help acceptable Mineral Useful resource estimation, mining research and metallurgical research.
• Whether or not logging is qualitative or quantitative in nature. Core (or costean, channel, and so on) images.
• The entire size and share of the related intersections logged.

• All holes had been geologically logged on digital knowledge seize.
• The info collected are rock, construction, alteration and mineralization based mostly on drilling intervals, recoveries and analytical outcomes.
• After validation, the mineral and alteration zones had been outlined.
• The outcomes had been entered within the database as a desk with all mapped knowledge and a consolidated log of the drill was ready.
• Most of this work was carried out by skilled senior advisor geologist supported by advisor junior geologist.
• Along with measuring deviations, a lot of the holes had been surveyed utilizing an optical tele viewer (OPTV or BHTV), with buildings and orientation measurements, which repeatedly and completely recorded the holes’ partitions and measured buildings.
• The buildings had been measured in ranks in accordance with their width and the outcomes had been reported and plotted on stereographic networks and rosette diagrams.

• If core, whether or not minimize or sawn and whether or not quarter, half or all core taken.
• If non-core, whether or not riffled, tube sampled, rotary break up, and so on and whether or not sampled moist or dry.
• For all pattern varieties, the character, high quality and appropriateness of the pattern preparation approach.
• High quality management procedures adopted for all sub-sampling levels to maximise representivity of samples.
• Measures taken to make sure that the sampling is consultant of the in situ materials collected, together with as an example outcomes for discipline duplicate/second-half sampling.
• Whether or not pattern sizes are acceptable to the grain dimension of the fabric being sampled.

• Sierra Medina´s DDH holes are drilled and sampled on a steady 2-meter foundation, halved by a standard core splitter on web site, with one half despatched to the Andes Analytical Assay preparation laboratory in Copiapó and the pulps then despatched to the identical firm laboratory in Santiago for assaying
• The final break up yields “pattern A”, which is shipped for preparation and assaying, and “pattern B”, which is used to acquire drill cuttings (1 kg) and coarse/preparation duplicates after which saved in particular amenities on web site.
• DDH samples are obtained each 2 meters from a half-core, with the opposite half saved on web site.
• RC holes are drilled and sampled on a steady 2-meter foundation and its samples riffle break up on web site thrice, as much as one eighth (12.5%) of its quantity.
• The final break up yields “pattern A”, which is shipped for preparation and assaying, and “pattern B”, which is used to acquire drill cuttings (1 kg) and coarse/preparation duplicates, after which saved in particular amenities on web site.
• Samples are transferred by laboratory personnel from the venture to Copiapó, after which the preparation pulps are returned to generate the evaluation batches. Upon receipt, pattern particulars are logged and insertion factors for high quality management samples within the pattern move are decided.
• Samples had been ready utilizing the next customary protocol: drying; crushing all pattern to -1/4″ and passing via a secondary crusher to raised than 80% passing -10#; homogenizing; splitting; pulverizing a 400-600g subsample to 95% passing -150#; and a 125g break up of this despatched for assaying. All samples had been assayed for %CuT (whole copper); %CuS (acid soluble copper). A full QA/QC program, involving insertion of acceptable blanks, requirements and duplicates was employed with acceptable outcomes. Pulps and pattern rejects are saved by Marimaca Copper for future
• Laboratory outcomes are loaded instantly from digital assay certificates into the database, with a purpose to decrease error sources.

• The character, high quality and appropriateness of the assaying and laboratory procedures used and whether or not the approach is taken into account partial or whole.
• For geophysical instruments, spectrometers, handheld XRF devices, and so on, the parameters utilized in figuring out the evaluation together with instrument make and mannequin, studying instances, calibrations elements utilized and their derivation, and so on.
• Nature of high quality management procedures adopted (eg requirements, blanks, duplicates, exterior laboratory checks) and whether or not acceptable ranges of accuracy (ie lack of bias) and precision have been established.

• Samples are ready at a laboratory web site in Copiapó and assayed by Andes Analytical Assay Ltd. (AAA) in Santiago.
• Samples had been ready utilizing the next customary protocol: drying; crushing all pattern to -1/4″ and passing via a secondary crusher to raised than 80% passing -10#; homogenizing; splitting; pulverizing a 400-600g subsample to 95% passing -150#; and a 125g break up of this despatched for assaying. All samples had been assayed for %CuT (whole copper); %CuS (acid soluble copper). A full QA/QC program, involving insertion of acceptable blanks, requirements and duplicates was employed with acceptable outcomes. Pulps and pattern rejects are saved by Marimaca Copper for future
• All samples are assayed by AAA for whole copper (CuT) and soluble copper (CuS). The latter was initially obtained from a selected CuS take a look at.
• Laboratory outcomes are loaded instantly from digital assay certificates into the database, with a purpose to decrease error sources.
• The analytical high quality management packages applied at Marimaca contain the usage of coarse/preparation and pulp duplicates for precision analyses and customary reference supplies (SRM).
• Marimaca has protocols in place for dealing with analytical outcomes that exceed acceptable limits, which may in the end set off re-assays of total or parts of pattern batches.

• The verification of great intersections by both impartial or different firm personnel.
• The usage of twinned holes.
• Documentation of main knowledge, knowledge entry procedures, knowledge verification, knowledge storage (bodily and digital) protocols.
• Talk about any adjustment to assay knowledge.

• There are not any twinned holes within the dataset
• All logging knowledge was accomplished, and logging knowledge was entered instantly into the deposit database.
• Laboratory outcomes are loaded instantly from digital assay certificates into the database to attenuate error sources.

• Accuracy and high quality of surveys used to find drill holes (collar and down-hole surveys), trenches, mine workings and different areas utilized in Mineral Useful resource estimation.
• Specification of the grid system used.
• High quality and adequacy of topographic management.

• Native contractors carried out the supervision of the drilling operation.
• An skilled topographer surveyed the collars.
• WGS84 UTM coordinates are used.
• Knowledge Effectively Providers carried out the downhole surveys for drill holes.
• Knowledge collected is taken into account ample for eventual use in mineral useful resource estimation.

• Knowledge spacing for reporting of Exploration Outcomes.
• Whether or not the info spacing and distribution is ample to ascertain the diploma of geological and grade continuity acceptable for the Mineral Useful resource and Ore Reserve estimation process(s) and classifications utilized.
• Whether or not pattern compositing has been utilized.

• Because of the nature of mineralisation and the kind of exploration discovery drilling program the outlet spacing is extremely variable.
• Knowledge spacing will not be thought of ample to ascertain geological and grade continuities for Mineral Useful resource Estimation on the Inferred and Indicated class.
• No pattern compositing was utilized.

• Whether or not the orientation of sampling achieves unbiased sampling of potential buildings and the extent to which that is recognized, contemplating the deposit sort.
• If the connection between the drilling orientation and the orientation of key mineralised buildings is taken into account to have launched a sampling bias, this must be assessed and reported if materials.

• Drill gap orientation was usually oriented to be sub perpendicular to the mineralisation however variable in locations given the character of the exploration program being performed
• Assays are reported on a downhole foundation
• True widths are estimated as 95% of reported downhole intersection widths

• The measures taken to make sure pattern safety.

• All drilling assay samples are collected by firm personnel or beneath the direct supervision of firm personnel.
• Samples from Marimaca had been initially processed on the venture web site and shipped instantly from the property to a laboratory facility for remaining preparation, and later, upon their return, to the laboratory for evaluation.
• Appropriately certified employees on the laboratories gather assay samples.
• Safety protocols applied preserve the chain of custody of samples to forestall unnoticed contamination or mixing of samples and to make energetic tampering as troublesome as potential.

• The outcomes of any audits or opinions of sampling strategies and knowledge.

• It’s the Competent Individuals opinion that these processes met acceptable business requirements, and that the data may be reported beneath each JORC and NI43-101 requirements and, sooner or later, be used for geological and useful resource modelling.

• Sort, reference title/quantity, location and possession together with agreements or materials points with third events akin to joint ventures, partnerships, overriding royalties, native title pursuits, historic websites, wilderness or nationwide park and environmental settings.
• The safety of the tenure held on the time of reporting together with any recognized impediments to acquiring a licence to function within the space.

• Marimaca Copper Corp. owns a tenement bundle consisting of roughly 14,500 hectares on the broader Sierra de Medina venture space and are a mixture of mining concessions and exploration concessions.
• The Sierra de Medina Venture are comprising 55 concessions owned by ICAL, a subsidiary of Marimaca Copper Corp.
• The Pampa Medina Venture contains 12 concessions owned by SCM Elenita over which the Firm entered into an choice settlement to amass.
• The Madrugador Venture contains 10 concessions owned by SLM Juanita and SLM Madrugador over which the Firm entered into an choice settlement to amass.
• There are not any recognized impediments to working exploration drilling campaigns on the venture areas.

• Acknowledgment and appraisal of exploration by different events.

• Between 1993 and 1996, Compañía Minera Doña Isabel and Rayrock Ltda carried out an intensive exploration program. This system included a geochemistry program with quick Monitor Drill wells spaced each 50 m alongside a number of E–W strains between 2 km and 5 km in size, which prolong all through the district, masking the southeastern a part of the Pampa concessions in an space of roughly 460 ha. The goal was to guage the rock under the caliche layer. On this space, roughly 600 samples had been obtained, representing 40% of the entire samples extracted all through the district, of which 2% of the entire have copper anomalies.
• For 2003 and 2004, the appropriate to take advantage of the Pampa 81 (1/20 and 21/40) and Pampa 47 (1/20 and 21/40) concessions by Minera Rayrock Ltda was established.
• In 2008, Rayrock Ltda  carried out two RC drilling campaigns. The primary concerned 15,729 m distributed in 38 holes with an approximate mesh of 500 m × 500 m and the second marketing campaign concerned 14,913 m in 35 holes with a mesh of 125 m ×125 m in an space of 1,000 × 350 m, recognising primarily copper oxides, with some combined intervals and small quantities of main mineralisation.
• An exploration marketing campaign was subsequently carried out in 2013, consisting of 45 diamond holes for a complete of 18,707 m drilled.
• Throughout 2014, Rayrock Ltda continued with the newest exploration marketing campaign, with the completion of 17 diamond drill holes for a complete of 5,264 m drilled.

2. Madrugador Concessions

• The Madrugador concessions had been beforehand the topic of restricted exploration efforts because the Nineteen Eighties. A lot of the exploration on the Madrugador concessions was performed by Rayrock from 1993 to 1996 and consisted of diamond and reverse circulation drilling. A complete of 23,502 m of diamond and RC drilling in 223 holes had been accomplished on the property previous to 2005. Proyecta, a Chilean engineering firm, performed a brief monitor RC drilling program on the Madrugador declare in 2005.
• Throughout the interval 1994 to 1999, Rayrock performed geological mapping of the property, a stream sediment and soil/highway‐minimize sampling survey, in addition to restricted diamond drilling.
• In 2007 and 2008, Apoquindo Minerals Inc. (Apoquindo) accomplished 21,177 m of RC drilling in 132 holes and 1,206 m of diamond drilling in eight holes.
• In April 2009, Apoquindo entered right into a JV settlement with Minera S.A.

• Deposit sort, geological setting and elegance of mineralisation.

• The Pampa Medina mining district is characterised by Jurassic-Triassic volcanic and sediment hosted manto sort copper mineralization. Traits volcanic hosted, akin to shallow Madrugador mineralization, resembles the everyday Coastal Belt copper fashion mineralization and the sediment hosted fashion is uncovered at previous mine workings alongside the Sierra de Valenzuela District and at deep drilling under coated areas extending round the place the host sediments are coated by volcanics.
• Important structural system are a block faulting and a fancy of dyke swarm.
• The copper mineralisation noticed within the drill holes contains each oxides and sulphides. The predominant oxides correspond to atacamite, azurite and chrysocolla. The oxide zone thickness varies between few metres as much as greater than 200 m, and irregular combined zone characterised by a combination of inexperienced copper oxides (primarily atacamite) and copper sulphides (principally chalcocite, and fewer chalcopyrite and pyrite). At depths of greater than 300 m main mineralization was noticed and include chalcopyrite, bornite and variable covellite and pyrite.
• Rock alteration is generally albitization of sediments and little clay is noticed within the higher oxidized zones.

• A abstract of all data materials to the understanding of the exploration outcomes together with a tabulation of the next data for all Materials drill holes:
  • easting and northing of the drill gap collar
  • elevation or RL (Decreased Degree – elevation above sea stage in metres) of the drill gap collar
  • dip and azimuth of the outlet
  • down gap size and interception depth
  • gap size.
• If the exclusion of this data is justified on the idea that the data will not be Materials and this exclusion doesn’t detract from the understanding of the report, the Competent Individual ought to clearly clarify why that is the case.

• Drill gap attribute data is included in a desk herein.

• In reporting Exploration Outcomes, weighting averaging strategies, most and/or minimal grade truncations (eg chopping of excessive grades) and cut-off grades are normally Materials and must be acknowledged.
• The place mixture intercepts incorporate quick lengths of excessive grade outcomes and longer lengths of low grade outcomes, the process used for such aggregation must be acknowledged and a few typical examples of such aggregations must be proven intimately.
• The assumptions used for any reporting of metallic equal values must be clearly acknowledged.

• Size weighted averages had been used to calculate grade over width.
• No particular grade cap or cut-off was used throughout grade width calculations. The entire copper (CuT) weighted common grade of the whole interval is calculated for all intervals over 2m samples lengths. Manto-type deposits may be variable in nature leading to some intervals having a small variety of poorly mineralized samples (<0.1% CuT) included within the calculation.
• No metallic equivalents have been reported.

• These relationships are significantly necessary within the reporting of Exploration Outcomes.
• If the geometry of the mineralisation with respect to the drill gap angle is understood, its nature must be reported.
• If it’s not recognized and solely the down gap lengths are reported, there must be a transparent assertion to this impact (eg ‘down gap size, true width not recognized’).

• True widths should not recognized right now, nonetheless drilling usually targets subparallel intersections of the mineralized manto items as understood/interpreted on the time of drilling
• All intersections are reported on a downhole foundation.

• Applicable maps and sections (with scales) and tabulations of intercepts must be included for any important discovery being reported These ought to embrace however not be restricted to a plan view of drill gap collar areas and acceptable sectional views.

• Please seek advice from the figures contained herein

• The place complete reporting of all Exploration Outcomes will not be practicable, consultant reporting of each high and low grades and/or widths must be practiced to keep away from deceptive reporting of Exploration Outcomes.

• All important outcomes have been reported
• Please seek advice from the tables herein

• Different exploration knowledge, if significant and materials, must be reported together with (however not restricted to): geological observations; geophysical survey outcomes; geochemical survey outcomes; bulk samples – dimension and methodology of remedy; metallurgical take a look at outcomes; bulk density, groundwater, geotechnical and rock traits; potential deleterious or contaminating substances.

• The character and scale of deliberate additional work (eg assessments for lateral extensions or depth extensions or large-scale step-out drilling).
• Diagrams clearly highlighting the areas of potential extensions, together with the principle geological interpretations and future drilling areas, offered this data will not be commercially delicate.

• Over the course of 2025, the Firm intends to finish additional exploration work on the venture space together with:
  • Geophysical surveys
  • Reverse circulation and diamond core drilling
• Of specific focus would be the potential for extensions from the Pampa Medina Deposit north and west.