Mise à jour des ressources minérales pour le projet minier Sagay
Nnit A/S Nam. Dk 10
€24.90
19:59 22/03/17
VERSION ASX/AIM
6 FÉVRIER 2024
Mineral Resource update for Sagay
Projet minier
POINTS FORTS
· Focus of the update related to shallow supergene copper mineralisation which now includes Measured and Indicated Mineral Resources.
· Combined Measured, Indicated and Inferred Mineral Resource of 312 million tonnes @ 0.39% copper and 0.11g/t gold.
· Global Resource remains largely unchanged with ~1.2 million tonnes of contained copper and ~1 million ounces of contained gold.
· The copper mineralisation remains open in multiple directions, with further shallow targets untested.
· Mineralisation exists from near surface down to over 1.2km depth with strike lengths up to 1km and true widths extending into the 100's of metres.
______________________________________________________________________________
Celsius Resources Limited ("Celsius" or "the Company") is pleased to announce an updated JORC compliant Mineral Resource estimate ("MRE") for the Sagay Copper Project ("Sagay" or "Project"), held under its Philippine Subsidiary, Tambuli Mining Company, Inc ("TMCI") and located at the Island of Negros in the Philippines.
The update to the MRE at Sagay is largely based on the results from the 2023 drilling program at a shallow copper position located ~500m to the west of the main body of mineralisation discovered to date, as announced on 17th October 2023. This shallow copper zone offers Celsius the opportunity to investigate a low cost start up opportunity via a feasibility study which has been submitted to the Philippine Government.
Celsius Resources Managing Director, Peter Hume said:
"The greater definition of the shallow supergene copper at Sagay has increased both the Resource category and our own confidence in the ability to look at a new shallow sustainable friendly development option. The previous Mineral Resource only placed this area in the Inferred Category, and with this new update to the Mineral Resource, this area is now largely in the Measured and Indicated category, which allowed us to complete and submit a feasibility study to the Philippine Government .
The Company has taken a sustainable approach to the proposed development of the Sagay Mineral Resource, similar to its flagship MCB project. Eliminating the use of a conventional tailings dam and using the tailings for environmental rehabilitation, along with processing the ore through gravity separation, therefore eliminates the use of chemicals. We are in the process of finalising the Project's environmental impact assessment which will clearly demonstrate the Company's commitment to environmental protection and preservation through advanced mining technologies."
CLA Chairman, Atty. Julito R. Sarmiento added:
"The development of the Sagay Project can assist with meeting the global demand for green metals in an effort to transition to clean energy sources and achieve the global goal of net zero emissions by 2050 to stave off climate change calamity. CLA constantly takes serious efforts to develop genuinely responsible projects by tightening up our environmental managements systems and stepping up our social and environmental performance."
THE SAGAY COPPER-GOLD PROJECT
Localisation
The Sagay Copper Project is in the north-eastern part of Negros Island, within the cities of Sagay and Escalante in the Province of Negros Occidental, Philippines (Figure 1). Negros Island is part of the central group of Islands in the Philippines commonly referred to as "the Visayas".
Figure 1. Location of the Sagay Copper Project in the Island of Negros, Visayas, Philippines
The MRE for the Sagay Property is located at Purok Tan-ao, Barangay Lopez Jaena (see Figure 2).
Figure 2. Location of the tenement area of the Sagay Project.
Estimation des ressources minérales
Drilling at Sagay has broadly defined a large-scale copper mineralisation which is interpreted to be a typical porphyry copper style of mineralisation, common throughout the Philippine archipelago.
The copper mineralisation for the MRE at Sagay is defined by three defined mineralised domains, two of which (namely 100LG and 100HG) relate to a main body of copper mineralisation which exists underneath a local topographic high.
This topographic high relates to Purok Tan-ao with resistive siliceous rocks interpreted to be an eroded lithocap associated with the porphyry mineralisation.
A third mineralised domain (900SG) hosts a shallow flat lying supergene copper mineralisation towards the west of the main mineralisation underneath Purok Tan-ao and is possibly related to a satellite porphyry mineralisation. Figures 3 to 7 show a plan view and cross sections of the mineralised domains relative to the host rock geology.
The copper mineralisation at Purok Tan-ao is broadly constrained by a zone of mineralisation which exceeds 0.2% copper and is trending parallel to the main alteration and related intrusive host rocks.
A lower cut-off grade of 0.2% copper was applied in the reported MRE (summarised in Table 1) which aligns broadly with the expected economic limits of the likely mining and processing options considered at Purok Tan-ao.
Tableau 1: Summary results for the Mineral Resource estimate at Purok Tan-ao at a cut-off grade of 0.20%
cuivre.
Domaine | Classification | Érosion | Tonnes | Catégorie de cuivre (%) | Grade or (g / t) | Cuivre métal (kt) | Métal doré (kozs) |
Note for table of results: Calculations have been rounded to the nearest Mt of ore (to the nearest 100,000t where <10Mt), two significant figures for Cu and Au grade and to the nearest kt of Cu metal and kozs of Au metal (to the nearest 100t where <10kt). Some apparent errors may occur due to rounding. TR - Transition or partially oxidised Rock, FR - Fresh Rock.
Figure 3. Drill hole locations and interpreted surface geological plan view diagram.
Figure 4. Drill hole locations and interpreted surface geological plan view diagram.
Figure 5. Oblique Cross Section A-A' , showing the location of mineralised domain 900SG (Supergene mineralisation) and the western section of the 100LG and 100HG mineralised domains.
Figure 6. Oblique Cross Section B-B' showing the location of the 100LG and 100HG mineralised domains.
Figure 7. Oblique Cross Section C-C' showing the location of the 100LG and 100HG mineralised domains.
Géologie et interprétation géologique
Sagay is located at the northernmost tip of the NNE trending volcanic arc related to the eastward subduction beneath the Negros Trench in the southwest offshore of Negros Island. Several porphyry and epithermal mineralisation targets belong in this underexplored mineralisation trend along the eastern side of the island.
The major rocks identified at Purok Tan-ao are a series of intermediate igneous rocks intruding into older host rocks composed of basalts overlain by metamorphosed sedimentary rocks and felsic volcanics. These rocks are in turn overlain by Quaternary pyroclastic rocks that consist of tuff and tuff breccias. The intermediate intrusions include several diorites and andesite porphyry.
Three distinct Diorite intrusives were identified. Following the local nomenclature in Sagay Project, these are (from oldest to youngest) the (1) Equigranular Diorite (MEQ), (2) Medium-grained Porphyritic Diorite (MPOC), and the (3) Fine-grained Equigranular Diorite (FEQ). These intrusive rocks have distinct textures and visible cross cutting relationships. Widespread strong silica - clay and outer chlorite alteration is notable in the deposit. This 8km by 4km alteration zone is indicative of a large magmatic hydrothermal system.
There are multiple types of porphyry mineralisation observed within the Purok Tan-ao Deposit. The dominant type is related to early-stage porphyry quartz stockwork veins with associated potassic alteration and chalcopyrite as the dominant copper sulphide. A later-stage porphyry Cu-Mo type mineralisation has been identified and is hosted in silica - sericite - chlorite alteration. In addition, evidence exists for a later-stage epithermal vein deposit type which exist within close proximity to the large-scale porphyry copper-gold mineralisation.
At this stage, only the porphyry copper-gold type of deposit was defined in the MRE.
Techniques de forage
All of the drilling data used for the Sagay MRE is based on diamond drilling information from a total of 45 diamond drill holes-with a cumulative meterage of 25,782.1m.
Initial diamond drilling was conducted between December 2012 and 2016 by Freeport-McMoRan, who completed a total of 28 drill holes at Purok Tan-ao, with an aggregate core depth of 22,516.70 metres.
From November 2021 to April 2022, Celsius has completed a total of 4 drill holes and 1 offset, for a total to 2,440 metres . More recently in late 2023, Celsius completed a further 12 shallow drill holes which are the focus for this Mineral Resource update. These shallow drill holes relate to the 900SG mineralised domain with a total meterage of 824.7m .
Sampling and Sub-sampling Techniques
The following sub sampling and sample preparations were followed for all the diamond drilling at Sagay.
Half core samples were collected from diamond holes drilled from the surface. All drill cores were generally sampled at 2m intervals. In cases where geological and mineralogical characteristics change, the sample length is reduced to best fit the geological contact, with a minimum observed sample size of one metre. Sampling typically commenced after the overburden horizon depth was exceeded.
Cut samples were bagged on site prior to delivery to the laboratory (Intertek) in Manila for sample preparation and analysis.
Sample Analysis Method
All samples were analysed at the Intertek, an internationally recognised and ISO/IEC 17025:2005 & ISO/IEC 17020:2004 certified independent laboratory in Manila.
Copper (Cu) values were analysed by means of multi-acid (4-acid) digest. Elements were determined by ICP-OES/MS with AAS finish. Samples were fire assayed for gold (Au) using a 50-gram charge, with a detection limit of 0.005 ppm.
Méthodologie d'estimation
A parent cell block size of 10m x 10m x 10m was chosen based on the general dimensions of the interpreted ore domains, and the likely mining method.
Ordinary Kriging was chosen as the interpolation method for the block model which defines the MRE.
The parameters for Ordinary Kriging were based on an analysis of the variograms for each domain in addition to some broad assumptions with regards to the direction and continuity of the copper and gold mineralisation associated with each defined mineralised domain. The variograms were located along the plane of the interpreted controlling geological trend which is striking at approximately 50 degrees at a near vertical dip.
A broad review of the statistics for each domain did not identify significant high value outliers that are considered likely to result in an overestimated either locally or globally to the grade distribution within the block model. Therefore, no top cut was applied to the MRE.
Critères de classement
The mineralisation is constrained within boundaries which are also considered to define the limits for each domain as supported by the current drill hole information. Within these domain constraints, minimum search distances and composited drill hole information parameters determined which locations were defined as Measured, Indicated, Inferred or as further Exploration Targets.
A small portion of the 900SG was classified in the Mesuré category where there is tighter drill spacing (less than 50m), multiple drill holes which show continuity of mineralisation and the variogram analysis is also supporting of the relationship of the assay data between drill holes.
Les Indiqué category was classified based on maximum distance of 150m to the major position, 85m to the semi-major axis and 25m in the minor direction for the limits, with a minimum number of samples at 8 and maximum number of samples at 16. A minimum of two drill holes was also applied for the Indicated category.
Les Inféré Mineral Resource represents over 90% of the total MRE due to the thick and broadly spaced copper intersections as deeper levels which contain the most copper mineralisation identified to date at Purok Tan-ao. This category was extended for twice the distances applied to the Indicated Resource pushing the limits search ellipse to 300m x 150m x 50m, with a minimum of four samples and maximum of 20 samples defined for each block.
No restriction on the number of drill holes was applied for the Inferred Mineral Resource category.
Note de coupure
A preferred lower cut-off grade of 0.2% copper has been used in the reported MRE. This is considered appropriate based on the geological continuity associated with copper mineralisation above 0.2% copper in addition to a broad economic cut-off point based on a ~US$10,000/t copper price.
Dimensions
The mineralisation at Purok Tan-ao is classified as a porphyry copper-gold deposit which, at deeper levels (below 400m depth), has a broad geometry of up to 1km along strike towards the north-east (with a main trend of ~45o azimuth) and true widths of up to 280m. At shallower levels, the copper mineralisation is broken up into multiple domains which are individually up to 600m along strike and with true widths of up to 150m.
The 900SG domain is a shallow, flat lying zone of mineralisation which has formed along the current and ancient water table at a broadly horizontal orientation. This domain is elongated in the direction of some interpreted controlling faults and/or source porphyry copper mineralisation. These trends appear to be both north-east and north-west in orientation.
Metallurgical and Mining Parameters
For the 900SG domain which is the basis of the Feasibility Study, utilised a potential surface mine approach with an interpreted costs of US$3.30/t for mining and US$4.8/t for processing.
Possible later mining development costs of US$10/t to US$7/t and processing costs of US$7/t to US$4/t respectively for a medium sized (5Mt to 10Mt per annum) underground block caving mining method and processing using floatation (to produce a copper-gold concentrate) have been assumed where applicable for the MRE.
This cost range estimate matches closely with a broad geological cut-off grade of between 0.15% copper and 0.25% copper (at a forward-looking Copper Price of ~US$10,000/t).
Résultats de l'étude
Based on the resource model, mining parameters, and metallurgical test works, a Mining Project Feasibility Study was submitted to the Philippine Mines and Geosciences Bureau on 20 December 2023 confirming the presence of minerals in the area which are recoverable by processing the ore through gravity separation which was determined to be economically sound, ensuring environmental protection and preservation methods would be implemented through the advanced mining technologies .
The study focused on the shallow supergene chalcocite deposit which is suitable for a medium-scale surface mining operation. The copper concentrate produced will have no deleterious elements which makes it highly marketable.
Technical, environmental, and social considerations were incorporated in the mine design to reduce the mine footprint to approximately 20 hectares. The process plant is engineered to enhance the ore through a gravity concentration method which is effective in extracting valuable components form the ore, thus contributing to the overall success of the ore beneficiation process.
Metallurgical test works indicated that the tails produced is non-acid generating. All tailings will be managed through dry stacking method which eliminates the need for a tailings dam, thus removing the possibility of environmental impacts (tailings spill). Other alternative disposal methods are currently being studied, including the potential use of tailings for hollow block manufacturing as a community livelihood program, road base, and landfill among others.
Prochaines étapes
Following the submission of the DMPF, the key technical, environmental, and social plans and programs are under review by the Philippine Government. Once approved, the Company will apply for a mineral agreement with the government.
Règle de cotation 5.19 et 5.23 Divulgation
The information is this announcement with respect to the MRE for the Sagay Project was first announced by the Company to ASX on 7 November 2022. Where reference is made to previous announcements of exploration results in this announcement, the Company confirms that it is not aware of any new information or data that materially affects the information and results included in the original market announcements and that all material assumptions and technical parameters underpinning the MRE continue to apply and have not materially changed.
Énoncés prospectifs
Certaines des déclarations apparaissant dans cette annonce peuvent avoir la nature de déclarations prospectives. Vous devez être conscient que ces déclarations ne sont que des prédictions et sont soumises à des risques et incertitudes inhérents. Ces risques et incertitudes comprennent des facteurs et des risques spécifiques aux secteurs dans lesquels la Société opère et propose d'opérer ainsi que les conditions économiques générales, les taux de change et les taux d'intérêt en vigueur et les conditions des marchés financiers, entre autres. Les événements ou résultats réels peuvent différer sensiblement des événements ou des résultats exprimés ou implicites dans toute déclaration prospective.
Aucune déclaration prospective ne constitue une garantie ou une représentation quant aux performances futures ou à toute autre question future, qui seront influencées par un certain nombre de facteurs et soumises à diverses incertitudes et éventualités, dont beaucoup échapperont au contrôle de la Société.
The Company does not undertake any obligation to update publicly or release any revisions to these forward-looking statements to reflect events or circumstances after today's date or to reflect the occurrence of unanticipated events. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions or conclusions contained in this announcement. To the maximum extent permitted by law, none of the Company's Directors, employees, advisors, or agents, nor any other person, accepts any liability for any loss arising from the use of the information contained in this announcement. You are cautioned not to place undue reliance on any forward-looking statement. The forward-looking statements in this announcement reflect views held only as at
Déclaration des personnes compétentes
Information in this report relating to the reporting of Mineral Resource Estimates and Exploration Results is based on information compiled, reviewed and assessed by Mr. Steven Olsen, who is a Member of the Australasian Institute of Mining and Metallurgy and the Australian Institute of Geoscientists. Mr. Olsen is an Employee of Global Geologica, an independent consulting Company to Celsius Resources Limited, and has sufficient experience which is 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 by the 2012 Edition of the Australasian Code for reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr. Olsen consents to the inclusion of the data in the form and context in which it appears.
Cette annonce a été autorisée par le conseil d'administration de Celsius Resources Limited.
Les informations contenues dans cette annonce sont considérées par la Société comme constituant des informations privilégiées, tel que stipulé dans le Règlement sur les abus de marché (UE) n° 596/2014, car elles font partie du droit interne britannique en vertu de la loi de l'Union européenne (retrait) 2018.
Celsius Ressources Coordonnées
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Perth WA 6000
BP 7059
PO Place du Cloître
Perth WA 6850
P: + 61 2 8072 1400
W : www.celsiusresources.com
Ressources Celsius Limitée | |
Pierre Hume (Directeur général) | P: + 61 2 8072 1400 W : www.celsiusresources.com |
Média multiplicateur Jon Cuthbert |
M: + 61 402 075 707 E: jon.cuthbert@multiplier |
Beaumont Cornish Limitée (Conseiller désigné) Roland Cornish/Felicity Geidt/Andrew Price |
Tél: +44 (0) 207 628 3396 |
WH Irlande (Broker) Harry Ansell/James Joyce/Isaac Hooper |
T: +44 (0) 20 +7220 (1666)XNUMX XNUMX |
Beaumont Cornish Limited (« Beaumont Cornish ») est le conseiller désigné de la société et est autorisé et réglementé par la FCA. Les responsabilités de Beaumont Cornish en tant que conseiller désigné de la société, y compris la responsabilité de conseiller et de guider la société sur ses responsabilités en vertu des règles AIM pour les sociétés et des règles AIM pour les conseillers désignés, sont dues uniquement à la Bourse de Londres. Beaumont Cornish n'agit pas et ne sera pas responsable envers toute autre personne pour fournir les protections accordées aux clients de Beaumont Cornish ni pour les conseiller concernant les arrangements proposés décrits dans cette annonce ou toute question qui y est mentionnée.
Annexe 1: The following tables are provided to ensure compliance with the JORC Code (2012) requirements for the reporting of Exploration Results for the MCB Project.
SECTION 1:
Techniques et données d’échantillonnage
(Les critères de cette section s'appliquent à toutes les sections suivantes.)
Critères | Explication du code JORC | Commentaire |
Techniques d'échantillonnage | · 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 whole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. · Inclure une référence aux mesures prises pour assurer la représentativité de l'échantillon et l'étalonnage approprié de tout outil ou système de mesure utilisé. · 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. | · Des échantillons ont été prélevés à partir de carottes de diamant forées à la surface. Toutes les carottes de forage ont généralement été échantillonnées à intervalles de 2 mètres. Dans les cas où les caractéristiques géologiques et minéralogiques changent, la longueur de l'échantillon n'est pas inférieure à 1 mètre. · Carottages coupés en deux à l'aide d'une scie carottée diamantée en suivant les lignes de coupe tracées par le Géologue. Les noyaux divisés sont retournés dans leur plateau à noyaux respectif. · Les échantillons ont été expédiés par véhicule de société à Intertek Testing Services, un laboratoire externe situé à Manille, aux Philippines. · Les échantillons broyés ont fait l'objet d'une analyse pyrotechnique pour l'or (Au) à l'aide d'une charge de 30 grammes, avec une limite de détection de 0.005 ppm. Des valeurs en or supérieures à 50 ppm ont été déterminées par pyroanalyse gravimétrique. · Copper (Cu) values were assayed using four-acid digestion. Elements determined by ICP-OES/MS with AAS finish with final reporting for a total of 36 elements. |
Techniques de forage | · Type de foret (par exemple, carottier, circulation inverse, marteau à trou ouvert, jet d'air rotatif, tarière, Bangka, sonique, etc.) et détails (par exemple diamètre du noyau, tube triple ou standard, profondeur des queues de diamant, foret d'échantillonnage facial ou autre type, si le noyau est orienté et si oui, par quelle méthode, etc.). | · Previous exploration and drilling were conducted between December 2012 and 2016 by Freeport-McMoRan, completing a total of 28 drill holes for the Purok Tan-ao deposit, with an aggregate depth of 22,516.70 meters. · A further exploration program had commenced between November 2021 to April 2022, completing a total of 4 drill holes and 1 offset hole in the prospect, with a cumulative depth of 2,440.70 meters. · The most recent drilling program was completed in late 2023 with 12 shallow diamond drill holes for a total length of 824.7m · There are a total of 45 holes in the database used for the MRE which is the subject of this release for a cumulative depth of 25,782.1 mètres. · The core drilling utilised a triple-tube core barrel from collar to end-of-hole to ensure optimum core recovery, with the deepest hole drilled being 1,400 meters. |
Récupération des échantillons de forage | · Méthode d'enregistrement et d'évaluation des récupérations d'échantillons de carottes et de copeaux et évaluation des résultats. · Mesures prises pour maximiser la récupération des échantillons et assurer la représentativité des échantillons. · Existe-t-il une relation entre la récupération et la teneur de l'échantillon et si un biais de l'échantillon peut s'être produit en raison d'une perte/gain préférentiel de matériau fin/grossier. | · La récupération des carottes a été enregistrée pour chaque intervalle dans le cadre de la diagraphie géomécanique de routine. · Recovered core lengths on average were measured to be over 97% for the drill holes with form part of the MRE, indicating a high recovery and minimal lost core. · Toutes les activités de forage ont été supervisées par les géologues de l'entreprise. Des techniciens de carottage formés étaient responsables de la détermination de la récupération des carottes. |
Journal | · Si les échantillons de carottes et de copeaux ont été géologiquement et géotechniquement enregistrés à un niveau de détail pour soutenir l'estimation appropriée des ressources minérales, les études minières et les études métallurgiques. · Que l'exploitation forestière soit de nature qualitative ou quantitative. Photographie de base (ou costean, canal, etc.). · La longueur totale et le pourcentage des intersections pertinentes enregistrées. | · Les géologues ont été chargés de superviser le rapport quotidien rapide jusqu'à l'échantillonnage. Un formulaire de journal rapide quotidien a été rempli pour identifier les détails géologiques tels que la lithologie, l'altération et la minéralisation avec l'estimation correspondante du pourcentage de minéraux de Cu et de la teneur en Cu, à l'aide d'un code géologique établi. · Procédure de diagraphie détaillée décrivant les caractéristiques géologiques présentes dans la carotte, c'est-à-dire la lithologie, l'altération, la minéralogie, les structures, etc. · La photographie de base a été entreprise après avoir terminé la diagraphie géomécanique. |
Techniques de sous-échantillonnage et préparation des échantillons | · Si le noyau, qu'il soit coupé ou scié et si le quart, la moitié ou la totalité du noyau est prélevé. · S'il ne s'agit pas d'une carotte, qu'il s'agisse d'un riffled, d'un tube échantillonné, d'une fente rotative, etc. et d'un échantillon humide ou sec. · Pour tous les types d'échantillons, la nature, la qualité et l'adéquation de la technique de préparation des échantillons. · Procédures de contrôle de la qualité adoptées pour toutes les étapes de sous-échantillonnage afin de maximiser la représentativité des échantillons. · Mesures prises pour s'assurer que l'échantillonnage est représentatif du matériel collecté in situ, y compris par exemple les résultats de l'échantillonnage en double sur le terrain/de la seconde moitié. · Si les tailles d'échantillon sont appropriées à la granulométrie du matériau échantillonné. | · Des échantillons étaient régulièrement prélevés sur un intervalle de 2 m et coupés en deux, la moitié de la carotte étant envoyée pour analyse et la moitié de la carotte étant conservée pour référence future. · Samples were cut on site using a hand core saw. Samples were then selected and bagged on site prior to delivery to the laboratory (Intertek) in Manila for sample preparation. · La taille de l’échantillon est considérée comme appropriée au type de matériau échantillonné.
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Qualité des données de dosage et des tests de laboratoire | · La nature, la qualité et la pertinence des méthodes d'analyse et de laboratoire utilisées et si la technique est considérée comme partielle ou totale. · Pour les outils géophysiques, les spectromètres, les instruments XRF portables, etc., les paramètres utilisés pour déterminer l'analyse, y compris la marque et le modèle de l'instrument, les temps de lecture, les facteurs d'étalonnage appliqués et leur dérivation, etc. · Nature des procédures de contrôle de qualité adoptées (par exemple, standards, blancs, duplicatas, contrôles externes en laboratoire) et si des niveaux acceptables d'exactitude (c'est-à-dire absence de biais) et de précision ont été établis. | · Les échantillons ont fait l'objet d'une analyse pyrotechnique pour l'or (Au) à l'aide d'une charge de 30 grammes, avec une limite de détection de 0.005 ppm. Des valeurs en or supérieures à 50 ppm ont été déterminées par pyroanalyse gravimétrique. Les valeurs de cuivre (Cu) ont été analysées par digestion par quatre acides. Éléments déterminés par finition AAS. · Les procédures de soumission des échantillons au laboratoire comprennent également l'insertion régulière d'échantillons AQ/CQ dans chaque formulaire de transmission ou lot, qui était généralement livré au laboratoire par lots de 50 échantillons numérotés. Pour chaque lot de 50 échantillons, 43 au total provenaient de carottes et 7 échantillons supplémentaires ont été inclus pour les contrôles QA/QC, qui étaient les suivants : o Quatre normes référencées o Un Blank référencé o Un blanc grossier (méconnaissable) o Un double de champ extrait du noyau divisé en quartiers · After sample preparation, all samples were sent for final analysis to Intertek at their laboratory in Manila. Intertek is an internationally recognised and ISO/IEC 17025:2005 & ISO/IEC 17020:2004 certified independent laboratory. |
Vérification de l'échantillonnage et des dosages | · La vérification des intersections importantes par le personnel indépendant ou alternatif de l'entreprise. · L'utilisation de trous jumelés. · Documentation des données primaires, des procédures de saisie des données, de la vérification des données, des protocoles de stockage des données (physiques et électroniques). · Discutez de tout ajustement des données d'analyse. | · Les procédures analytiques fournies par un laboratoire certifié internationalement sont considérées comme conformes aux normes de l'industrie pour le type de gisement et de minéralisation identifiés sur la propriété. · Hormis la vérification des procédures et des résultats décrite ci-dessus, aucune autre vérification de l'échantillonnage et des analyses n'a été entreprise. · Aucun des diamant noir les trous de forage dans ce rapport sont jumelés. |
Emplacement des points de données | · Précision et qualité des levés utilisés pour localiser les trous de forage (levés au col et en fond de trou), les tranchées, les chantiers miniers et d'autres emplacements utilisés dans l'estimation des ressources minérales. · Spécification du système de grille utilisé. · Qualité et adéquation du contrôle topographique. | · Tous les points de référence des données et les cartes de la base de données Sagay, y compris les coordonnées des colliers de forage, sont enregistrés dans la zone WGS 84/UTM 51N. · Les mesures au compas prises par les géologues ont été utilisées pour établir le pendage et l'azimut du trou du col dans le cadre de leurs levés initiaux du col. Les emplacements des colliers de forage ont été positionnés à l'aide d'un appareil GPS Garmin portable, réglé sur le système de référence de coordonnées UTM WGS 84 Zone 51N, avec une précision attendue à moins de 2 mètres. Des levés en fond de trou ont également été réalisés à l'aide d'un gyroscope Keeper à des intervalles de 50 m. · Les enquêtes au collier ont ensuite été enregistrées dans la feuille de calcul MS Excel principale dans le cadre de la base de données. |
Espacement et distribution des données | · Espacement des données pour la communication des résultats d'exploration. · Si l'espacement et la distribution des données sont suffisants pour établir le degré de continuité géologique et de teneur approprié pour la ou les procédures d'estimation des ressources minérales et des réserves de minerai et les classifications appliquées. · Si la composition d'échantillons a été appliquée. | · In the MRE, drill hole assays were composited to 2 metres which matches closely with the sample length down hole for all drill hole sampling completed at Sagay. · The drilling completed at Sagay is dominantly towards the north-west or south-east which is perpendicular to the main trend of the copper mineralisation and host rock geology. The drill spacing for the drill holes in this orientation is irregular, ranging from just over 150m separation up to 400m separation. · Drill hole spacing for the 900SG area have been reduced to between 50m and 100m with the results from the 2023 drilling program. · Some drilling has been conducted towards the south-west which is sub-parallel to the main trends of copper mineralisation. These drill holes have not had a significant influence on the MRE due to their poor orientation for both the copper boundary definition and for sampling. · The drill hole spacing has broadly defined the major trends to the copper-gold mineralisation. |
Orientation des données par rapport à la structure géologique | · Si l'orientation de l'échantillonnage permet d'obtenir un échantillonnage impartial des structures possibles et dans quelle mesure cela est connu, compte tenu du type de gisement. · Si la relation entre l'orientation du forage et l'orientation des principales structures minéralisées est considérée comme ayant introduit un biais d'échantillonnage, cela doit être évalué et signalé s'il est important. | · The drill hole orientations at Purok Tan-ao are largely towards the south-west or towards the south-east. These orientations were chosen to cut roughly perpendicular to the interpreted dominant structural trend and possible trend of the mineralised intrusive rocks which are trending towards the north-east, and some evidence of a trend to the north-west. · The dominant trend of the intrusive rocks which are interpreted to be related to the copper-gold mineralisation has an overall strike of 40 to 60 degrees and a near to vertical dip. The drill holes which are dipping approximately 60 degrees towards the south-east appear to be at a good angle to effectively test the copper-gold mineralisation in this trend. The holes which have been drilled towards the south-east are optimal for some cross cutting north-west trending structures, but at a poor angle to test the dominant copper-gold mineralisation which is sub parallel to these drill holes. · The 900SG domain is at a horizontal orientation and drilling has largely been completed at a 60-degree angle which is appropriate for defining both this flat lying domain in addition to potential vertical feeder structures related to the primary porphyry copper source of this supergene copper domain. |
Sécurité des échantillons | · Les mesures prises pour assurer la sécurité des échantillons. | · The following standard procedures were documented to have been followed in relation to sample security for all Purok Tan-ao diamond drilling: Sample bags are arranged in sequence according to its sample number. These are then weighed and jotted down to a sample dispatch note which details the sample numbers, sample type and laboratory processing required. Geologists ensures that the transmittal form is correct for encoding and submission. The samples are checked by a Mines and Geological Sciences (MGB) Geologist before issuance of an Ore Transport Permit (OTP). Upon receipt of the OTP, the sample bags are sealed in a crate, and sent to Manila via a certified courier contractor. Upon arrival in Manila, a company vehicle checks the samples before they're delivered to Intertek Testing Services. No unsupervised third parties were given access prior to the chain of custody procedure. o Dès réception des échantillons, ceux-ci ont été disposés en séquence pour examiner les chiffres, et un rapport sur les échantillons reçus a été envoyé aux géologues. Les échantillons sont à nouveau pesés individuellement pour vérification. · Samples were delivered to Intertek Testing Services along with two copies of the sample dispatch form. One copy for the laboratory to accept custody of the sample, and the signed/received copy return to database custodian given access prior to the chain of custody procedure. |
Audits ou examens | · Les résultats de tout audit ou examen des techniques et des données d'échantillonnage. | · Aucun autre audit ou examen spécifique n'a été effectué autre que les contrôles de validation par l'auteur documentés précédemment concernant la préparation des échantillons, l'analyse ou la sécurité des informations de la base de données des sondages Sagay. |
SECTION 2:
Déclaration des résultats d'exploration
(Les critères énumérés dans la section précédente s'appliquent également à cette section.)
Teneur minière et statut foncier | · Type, nom/numéro de référence, emplacement et propriété, y compris les accords ou les problèmes importants avec des tiers tels que les coentreprises, les partenariats, les redevances dérogatoires, les droits de propriété autochtones, les sites historiques, la nature sauvage ou les parcs nationaux et les environnements environnementaux. · La sécurité de la tenure détenue au moment du rapport ainsi que tout obstacle connu à l'obtention d'un permis d'exploitation dans la zone. · | · The Sagay Copper project is at the north-eastern part of Negros Island within the Cities of Sagay and Escalante Negros Occidental. · The underlying title is in the name of the Philippines registered corporation Tambuli Mining Company Inc. (TMCI) is currently 100% owned by a private Delaware Company who in turn is owned by Celsius Resources Ltd. · Tambuli Mining Company, Inc. (TMCI) was first granted a single Exploration Permit denominated as EP-000003VI on 6 May 2008 under Phelps Dodge Exploration Corporation - Philippine Branch (PDEC), which was later acquired by Freeport-McMoRan Exploration Corporation - Philippine Branch (FMEC) in 2007. The permit area covers a total of 4,594.23 hectares, which has recently been reduced to 1,791.3736 hectares where the Deposit is situated. · Le 11 août 2021, TMCI, désormais filiale de CLA, a obtenu un quatrième renouvellement (extension) de permis d'exploration valide jusqu'au 10 février 2024. La période de renouvellement actuelle de deux ans a permis la reprise des activités de forage de définition du minerai visant à définir la zone de minerai profonde (deux trous de forage), ses extensions peu profondes/près de la surface (trois trous de forage) et tester les éventuelles zones de minerai de chalcocite près de la surface (trois trous de forage). · TMCI has recently submitted an application for a Declaration of Mining Project Feasibility (DMPF), which is the first step towards a further application of a mining permit which will allow for the further exploration and development of the Sagay Project once granted. |
Exploration effectuée par d'autres parties | · Reconnaissance et appréciation de l'exploration par d'autres parties. | · Exploration work and drilling was completed by Tambuli Mining Company Inc. which was a subsidiary of Freeport-McMoRan Exploration Corporation-Philippine Branch from year 2008 to 2016. · The exploration activities were generally completed over two stages. From 2008 up to 2009, the work was focused on project assessment which included surface sampling and mapping, in addition to a number of ground geophysical surveys, most particularly a ground magnetic survey and a series of 2D Induced Polarisation surveys. · From 2012 through to 2016 the exploration activities were focused on diamond drilling to test the targets identified from the work completed over 2008 and 2009. · A further exploration under Celsius Resources commenced between November 2021 to April 2022, completing a total of 4 drill holes and 1 offset hole in the prospect, with a cumulative depth of 2,440.70 meters. · The most recent drilling program was completed in late 2023 with 12 shallow diamond drill holes for a total length of 824.7m · The drilling activities were predominately at the Purok Tan-ao with all drilling results reported in this release. |
Géologie | · Type de gisement, cadre géologique et style de minéralisation. | · The geological setting for the Purok Tan-ao copper-gold mineralisation is typical of a porphyry copper + gold + moly deposit as commonly defined in many academic papers (Hedenquist and Lowernstern, 1994; Sillitoe, R. H., 2010. Corbett and Leach, 1997). The mineralisation and associated alteration exist predominantly within a series of large intrusive bodies that have intruded the host country rocks. · The Sagay Project host rocks are part of the Negros Occidental Island, which is situated in western Visayas, Central Philippines. The eastern part of the island comprises a NNE trending volcanic arc related to the eastward subduction beneath the Negros Trench in the southwest off-shore of Negros Island. · Les principales roches identifiées sont une série d'intrusions qui existent dans un ensemble de roches hôtes plus anciennes de roches basaltiques recouvertes de tufs felsiques et de roches sédimentaires métamorphisées. Ces roches sont à leur tour recouvertes de roches pyroclastiques du Quaternaire constituées de tuf et de brèches de tuf. Les intrusions comprennent du porphyre de diorite et d'andésite. Des volcanites andésitiques à dacitiques post-minérales du Pliocène au Pléistocène couvrent la partie nord de la région. · Trois intrusifs de diorite distincts ont été identifiés, suivant la nomenclature locale du projet, à savoir (du plus ancien au plus jeune) : (1) la diorite équigranulaire (MEQ), (2) la diorite porphyrique à grain moyen (MPOC) et la (3 ) Diorite équigranulaire à grains fins (FEQ). Ces roches intrusives ont des textures distinctes et des relations transversales visibles. · Une altération généralisée d'argile siliceuse forte et de chlorite externe est notable dans le gisement. Cette zone d'altération de 8 km sur 4 km est révélatrice d'un vaste système hydrothermal magmatique. l'altération de surface mesure environ 1.7 km sur 1.7 km et tend à s'étendre vers le sud-ouest le long d'éventuelles structures de contrôle. · Voici les types de minerais établis dans le gisement : o Minerai de type 1 – Minéralisation de porphyre précoce à porphyre tardif o Minerai de type 2 – Zone mixte de minéralisation porphyrique tardive et de minéralisation épithermale. · Minerai de type 3 - zone mixte possible d'enrichissement supergène et de minéralisation épithermale à sulfuration élevée à sulfuration intermédiaire. Divisé en OT3A et OT3B en fonction des assemblages minéraux associés. |
Informations sur les trous de forage | · Un résumé de tous les éléments d'information nécessaires à la compréhension des résultats d'exploration, y compris un tableau des informations suivantes pour tous les trous de forage du matériel : · vers l'est et vers le nord du collier de forage · élévation ou RL (niveau réduit - élévation au-dessus du niveau de la mer en mètres) du collet du trou de forage · pendage et azimut du trou · longueur du fond du trou et profondeur d'interception · longueur du trou. · Si l'exclusion de cette information est justifiée au motif que l'information n'est pas importante et que cette exclusion ne nuit pas à la compréhension du rapport, la personne compétente doit expliquer clairement pourquoi c'est le cas. | · In summary, the drill hole in the database for the Property which relate specifically to the Purok Tan-ao area consists of 45 diamond core drilled holes with an accumulative meterage of 25,782.1m after the inclusion of the drill holes which are the subject of this release. · Aucune information sur les trous de forage n’a été exclue. |
Méthodes d'agrégation de données | · Dans la communication des résultats d'exploration, les techniques de pondération moyenne, les troncatures de teneur maximale et/ou minimale (par exemple, la coupe de hautes teneurs) et les teneurs de coupure sont généralement importantes et doivent être indiquées. · Lorsque les interceptions agrégées incorporent de courtes longueurs de résultats à haute teneur et de plus longues longueurs de résultats à faible teneur, la procédure utilisée pour une telle agrégation doit être indiquée et quelques exemples typiques de telles agrégations doivent être présentés en détail. · Les hypothèses utilisées pour tout rapport sur les valeurs d'équivalent métal doivent être clairement énoncées. | · Significant intersections for the purpose of representing the defined mineralisation in the MRE which is the subject of this report are shown in figures 5 to 7. The intersections reported are aggregated relative to broad mineralised interval which correspond with a definable and continuous zone of copper-gold mineralisation, nominally above a grade of 0.2% copper. The intervals have been reported as weighted average totals. Internal to the broader mineralisation that has been reported, there are some internal higher-grade copper-gold assay results reported (nominally above 0.5% copper) which are interpreted to exist as a continuous domain of higher-grade copper-gold mineralisation. These sections have also been reported as weighted average totals. · Seuls les résultats d’analyses moyens pondérés individuels ont été rapportés et aucune valeur d’équivalent métal n’a été rapportée. |
Relation entre les largeurs de minéralisation et les longueurs d'interception | · Ces relations sont particulièrement importantes dans la communication des résultats d'exploration. · Si la géométrie de la minéralisation par rapport à l'angle du trou de forage est connue, sa nature doit être rapportée. · Si elle n'est pas connue et que seules les longueurs de fond de trou sont signalées, il devrait y avoir une déclaration claire à cet effet (par exemple, « longueur de fond de trou, largeur réelle non connue »). | · There are a number of drilling orientations, but generally drill holes were designed on lines oriented towards 130 degrees to the south-east or towards 220 degrees to the south-west and spacing at just over 200m between holes. Where the mineralisation is interpreted to strike roughly perpendicular to the orientation of the drill holes, the angle between the drill hole (typically at a 60-degree dip) and the vertical mineralisation implies true width ranges of between 70-90% of the downhole width. |
Diagrammes | · Des cartes et des coupes appropriées (avec des échelles) et des tabulations d'interceptions doivent être incluses pour toute découverte significative signalée. | · See figures 3 to 7 for a representative plan and cross sections of the Geology and its relationship to the copper-gold mineralisation at Purok Tan-ao. |
Rapports équilibrés | · Lorsqu'il n'est pas possible de rendre compte de manière exhaustive de tous les résultats d'exploration, il convient de procéder à des comptes rendus représentatifs des teneurs et/ou des largeurs faibles et élevées afin d'éviter une communication trompeuse des résultats d'exploration. | · Toutes les données du projet ont été collectées, validées et rapportées et sont considérées comme étant une représentation juste du MRE du projet Sagay qui fait l'objet de cette version.
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Autres données d'exploration importantes | · Les autres données d'exploration, si elles sont significatives et importantes, doivent être rapportées, y compris (mais sans s'y limiter) : les observations géologiques ; résultats des levés géophysiques; résultats des levés géochimiques; échantillons en vrac - taille et méthode de traitement; résultats d'essais métallurgiques; densité apparente, eaux souterraines, caractéristiques géotechniques et rocheuses ; substances potentiellement nocives ou contaminantes. | · Historical exploration since the date of the original grant of EXP000003VI in 2008 was undertaken under the ownership and management of Tambuli Mining Company Inc. · On June 2008, first stage of geological work was established by geological mapping, gridlines preparations, soil and rock sampling, as well as geophysical surveys that consisted of induced polarisation, resistivity and ground magnetic. These activities were completed by 20th of December on the same year. · This was followed by a period of diamond drilling from 2012 through to 2016 for a total of 31 diamond drill holes, 28 of which were drilled at Purok Tan-ao. · Plus loin diamond drilling commenced between November 2021 to April 2022, completing a total of 4 drill holes and 1 offset hole in the prospect, with a cumulative depth of 2,440.70 meters. · The most recent drilling program was completed in late 2023 with 12 shallow diamond drill holes for a total length of 824.7m |
La poursuite des travaux | · La nature et l'ampleur des travaux ultérieurs prévus (par exemple, tests d'extensions latérales ou d'extensions en profondeur ou forage d'extension à grande échelle).
· Des diagrammes mettant clairement en évidence les zones d'extensions possibles, y compris les principales interprétations géologiques et les futures zones de forage, à condition que ces informations ne soient pas commercialement sensibles. | · There are a few locations where the potential extensions to the current defined large-scale copper-gold mineralisation could be tested. These locations are largely based on an interpreted north-east strike and near vertical dip to the copper-gold mineralisation. · The location for the possible shallow higher-grade copper-gold at Purok Tan-ao is also yet to be defined. Further drilling along possible north-east or northwest orientations to the previous shallow copper-gold intersections is warranted to test the extent of this mineralisation. · Apart from the direct extensions to the currently defined copper-gold mineralisation, there is considerable scope for further discoveries of two defined deposit types within the Sagay Tenement as follows: · Porphyry copper-gold deposit types o There are extensive intrusions in the area that are directly related to the copper-gold mineralisation, and which could at multiple locations formed significant high-grade copper-gold deposits. o Existing geophysical datasets have already identified a number of large untested features that are worthy of drill testing for the potential to discover further large-scale copper-gold mineralisation · Epithermal vein hosted deposit types · It is considered likely that there could be a combination of narrow high grade, and/or more broad large scale and lower grade epithermal deposit types at Purok Tan-ao. There are a number of apparent large-scale structures which exist adjacent to Tan-ao which are worthy of follow up drill testing for this style of deposit. There may be some merit in further surface sampling with a greater emphasis on epithermal gold deposit types. However, the relatively extensive geophysical surveys are already indicating a number or drill ready target positions that are worthy of follow up. |
Section 3
Estimation and Reporting of Mineral Resources
(Les critères énumérés dans la section 1 et, le cas échéant, dans la section 2, s'appliquent également à cette section.)
Intégrité de la base de données | · Mesures prises pour garantir que les données n'ont pas été corrompues par, par exemple, des erreurs de transcription ou de saisie, entre leur collecte initiale et leur utilisation à des fins d'estimation des ressources minérales. Procédures de validation des données utilisées. | · The original assay sheets and drill logs were checked against the drill hole database by the author and no systematic or random errors were identified as part of this validation check of the database. · In addition, the original laboratory reports were checked against the drill hole database. This data review did not identify any systematic or isolated errors in the drill hole database. · Drill core observations and validation steps were completed in September 2022 which included a review of all the defined Ore Domains and broad contact positions between the high grade and low-grade domains in addition to the low-grade ore to waste domain boundaries. · All drill core from the Purok Tan-ao drilling which were used to define the 2024 MRE have been preserved and were available for the author to visually check against the drill logs and recorded assay results. · Geological observations that are recorded in the drill logs leading to the definition of the ore domains at Purok Tan-ao appear consistent and reflective of what could be observed from the drill core by the Author. In addition, copper sulphides and recently weathered copper-sulphides (due to exposure of the drill core at the surface) are observable in the drill core where high-grade copper mineralisation has been reported. The relative presence of copper sulphides and oxidised copper minerals appear reasonably reflective of the assay results reported in the database based on the observations made by the author of the drill core. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Visites de sites | · Commentez toute visite de site effectuée par la personne compétente et le résultat de ces visites. · Si aucune visite de site n'a été effectuée, indiquez pourquoi c'est le cas. | · The Author has completed site inspections of the property including detailed review of the drill core which relate to the Mineral Resource Estimate. The field inspections included validation for approximately 30% of the drill collar locations for the drill holes which are included in the Mineral Resource estimate using a handheld GPS. · The review of drill core and field inspections were conducted from September 28 to September 30, 2021. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Interprétation géologique | · La confiance dans (ou au contraire, l'incertitude de) l'interprétation géologique du gisement minéral. · Nature des données utilisées et des hypothèses retenues. · L'effet, le cas échéant, des interprétations alternatives sur l'estimation des ressources minérales. · L'utilisation de la géologie pour guider et contrôler l'estimation des ressources minérales. · Les facteurs affectant la continuité à la fois de la teneur et de la géologie. | · The geological interpretation associated with the Purok Tan-ao Mineral Resource estimate is considered by the author to have a high level of confidence, with limited variability considered likely due to a difference in the geological interpretation. · The interpretation and Mineral Resource estimate have been compared directly with previous interpretations made by the geological staff at Freeport-McMoRan, which completed early stage previous exploration activities at Purok Tan-ao. The copper and gold mineralisation defined in the Mineral Resource estimate has a high level of consistency relative to the geological interpretation completed by Freeport-McMoRan. · The geological controls on the copper-gold mineralisation at the Purok Tan-ao copper-gold mineralisation is typical of a porphyry copper + gold + moly deposit as commonly defined in many academic papers (Hedenquist and Lowernstern, 1994; Sillitoe, R. H., 2010. Corbett and Leach, 1997). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dimensions | · L'étendue et la variabilité des ressources minérales exprimées en longueur (le long de la direction ou autrement), la largeur du plan et la profondeur sous la surface jusqu'aux limites supérieure et inférieure de la ressource minérale. | · The copper-gold mineralisation at Purok Tan-ao classified as a porphyry copper-gold deposit at deeper levels (below 400m depth) has a broad geometry of up to 1km along strike towards the north-east (main trend ~45°) and true widths of up to 280m. At shallower levels the copper mineralisation is broken up into multiple domains which are individually up to 600m along strike and with true widths of up to 150m. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Techniques d'estimation et de modélisation | · La nature et la pertinence de la ou des techniques d'estimation appliquées et des hypothèses clés, y compris le traitement des valeurs de teneur extrêmes, le domaine, les paramètres d'interpolation et la distance maximale d'extrapolation à partir des points de données. Si une méthode d'estimation assistée par ordinateur a été choisie, inclure une description du logiciel informatique et des paramètres utilisés. · La disponibilité des estimations de contrôle, des estimations précédentes et/ou des enregistrements de production minière et si l'estimation des ressources minérales prend en compte de manière appropriée ces données. · Les hypothèses faites concernant la valorisation des sous-produits. · Estimation des éléments délétères ou d'autres variables sans teneur d'importance économique (par exemple, le soufre pour la caractérisation du drainage minier acide). · Dans le cas de l'interpolation du modèle de bloc, la taille du bloc par rapport à l'espacement moyen des échantillons et à la recherche utilisée. · Toutes les hypothèses sous-jacentes à la modélisation des unités minières sélectives. · Toute hypothèse sur la corrélation entre les variables. · Description de la façon dont l'interprétation géologique a été utilisée pour contrôler les estimations des ressources. · Discussion sur la base de l'utilisation ou de la non-utilisation de la coupe ou du recouvrement de qualité. · Le processus de validation, le processus de vérification utilisé, la comparaison des données du modèle avec les données des trous de forage et l'utilisation des données de rapprochement si disponibles. | The Purok Tan-ao geological models, ore domain models and associated interpolation were all completed in the 3D software modelling package Leapfrog Geo and Leapfrog Edge (Version 2023.1). ORE DOMAINS A combination of features was utilised to review and subsequently domain the copper mineralisation to an appropriate level for the purpose of estimating the copper and gold contents. High Grade Copper Domain High-grade porphyry Cu-Au mineralisation is hosted in older volcanics and in the series of diorite intrusions, but widely situated in Medium Porphyritic Diorite (MPOC). This ore type was defined based on a combination of its alteration mineralogy, high-grade copper (mostly above 0.5% copper) and broad extensions to this mineralisation parallel to the dominant geological trend. The classified distinct ore types established in 2016 was used as a preliminary basis to construct the ore domains specified in this Technical Report. Ore Type 2 (as discussed in Section 13.1) positions were reviewed relative to the potential continuity of this ore type and to see the relationship between its copper-gold mineralisation. In locations where this ore type was very narrow, or patchy and no observable continuity, this ore type was not defined as a 100HG domain. Low Grade Copper Domain Further grade continuity models were created surrounding the high-grade material, with observable boundaries which are parallel to the older volcanics and diorite intrusions position. There appear to be a natural geological boundary at close to 0.2% copper, which has been used as the basis for developing a surrounding low-grade domain which is substantially mineralised. The position for copper mineralisation is not necessarily at exactly 0.2% copper, however, it is observable that there are distinct trends with grade distributions roughly above and then below into waste domains across this position. A low-grade domain boundary was created which obeyed the general trend of the contact position between assay results which were above and below 0.2% copper and for which this contact position was distinctly parallel to the dominant geological trends. TAILLE DE BLOC A parent cell size of 10m x 10m x 10m was used as the final model block size which appear to appropriately fill the model with cells and is considered appropriate for any potential economic evaluation of the Mineral Resource, which is most likely considered to be via the block caving method for later development. ORE CONTINUITY AND STATISTICAL ANALYSIS After applying the constraints on the ore domains for the high-grade and low-grade domain boundaries, each dataset was reviewed in terms of their basic statistics and also a review of their potential continuity based on their variograms. STATISTICS AND TOP CUT The summary basic statistical information for copper, gold and specific gravity associated with each domain, based on the 2-meters composited datasets from within each domain are summarised in the following tables. A review of the statistics for each domain did not identify significant high value outliers that are considered likely to result in an overestimated either locally or globally to the grade distribution within the block model. Therefore, no top cut was applied to the Mineral Resource estimate.
VARIOGRAM ANALYSIS Variogram analysis was competed for the 3 mineralised domains, the results of which are indicated below. 100LG Domain: The major axis has a strike of 45 degrees which is very close to the observable trend of the geology and interpreted boundaries to the copper mineralisation. The variograms are based on very sparse data. However, it is observed that there is a possible Sill developing for the major direction at over 100m in length, which would possibly be better supported with some closer spaced drill hole information. The semi-major direction has a reasonably good variogram with a Sill at approximately 70m, and the minor axis produces a variogram with a Sill at 20m. 100HG Domain: The higher-grade domain appears to occur as an internal zone with a shallow dip within the 100LG domain. The orientation of this mineralisation is broadly perpendicular to the major trends that are defined in the 100LG domain which is also reflected in the variogram results. The major direction is outlined in a fairly good variogram with a Sill at over 135m in length. The semi-major direction is delineated with a Sill at about 45m, and the minor axis yields a variogram with a Sill at about 25m. 900SG Domain: This patchy near surface supergene chalcocite enrichment zone is constrained to an area which is located to the west of the larger 100 domain. The variograms are based on an evenly scattered drillhole data. The major direction is defined with a Sill more than 90m in length. The semi-major direction is delineated with a Sill at about 85m, and the minor axis yields a variogram with a Sill at about 25m.
INTERPOLATION METHOD After definition of the ore domains and subsequent statistical and variogram analysis were completed for each ore domain, Ordinary Kriging (OK) was used as a standard estimator for both copper and gold values. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Humidité | · Si les tonnages sont estimés sur une base sèche ou avec de l'humidité naturelle, et la méthode de détermination de la teneur en eau. | The tonnes estimated for the Purok Tan-ao deposit block models were calculated on a dry basis. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Paramètres de coupure | · La base de la ou des teneurs de coupure adoptées ou des paramètres de qualité appliqués. | · The Purok Tan-ao deposit has been limited to a defined body of copper and gold mineralisation which are predominantly above 0.2% copper on average. · The 0.2% lower limit is also broadly in line with the expected economic limits of the likely mining and processing options considered for Purok Tan-ao. · Therefore, a preferred lower cut-off grade of 0.2% copper was applied to the reporting of the Mineral Resource estimate which is based on the information provided in this report (Table 1). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Facteurs miniers ou hypothèses | · Hypothèses faites concernant les méthodes d'extraction possibles, les dimensions minimales d'exploitation et la dilution d'exploitation interne (ou, le cas échéant, externe). Il est toujours nécessaire, dans le cadre du processus de détermination des perspectives raisonnables d'extraction économique éventuelle, d'examiner les méthodes d'extraction potentielles, mais les hypothèses formulées concernant les méthodes et les paramètres d'exploitation lors de l'estimation des ressources minérales peuvent ne pas toujours être rigoureuses. Lorsque tel est le cas, cela doit être signalé avec une explication de la base des hypothèses d'exploitation minière faites. | · It has been assumed that the large bodies of copper-gold mineralisation that are considered likely to form a continuous body of mineralisation potentially amenable to block cave mining have been included within the reported Mineral Resource estimate. Isolated or narrow structurally controlled sections of copper-gold mineralisation at this stage at Tan-ao do not appear to be of a scale to suggest that they have reasonable prospects for eventual economic extraction and are therefore not included in this Technical Report. · For the 900SG domain which is the basis of the Feasibility Study, utilised a potential surface mine approach with an interpreted costs of US$3.30/t for mining and US$4.8/t for processing. · Possible later mining costs of US$10/t to US$7/t and processing costs of US$7/t to US$4/t respectively for a medium sized (5Mt to 10Mt per annum) underground block caving mining method and processing using floatation to produce a copper-gold concentrate have been assumed where applicable for the Mineral Resource estimate. · This cost range estimate matches closely with a broad geological cut-off grade of between 0.15% copper and 0.25% copper (at a Copper Price of ~US$10,000/t). · A lower cut-off grade of 0.2% copper has been used as the preferred lower cut-off grade for the reported Mineral Resource estimate, which is considered appropriate based on the geological continuity associated with copper mineralisation above 0.2% copper in addition to a broad economic cut-off point based on a ~US10,000/t copper price. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Facteurs ou hypothèses métallurgiques | · La base des hypothèses ou des prédictions concernant l'aptitude métallurgique. Il est toujours nécessaire, dans le cadre du processus de détermination des perspectives raisonnables d'extraction économique éventuelle, d'examiner les méthodes métallurgiques potentielles, mais les hypothèses concernant les processus et les paramètres de traitement métallurgique formulées lors de la déclaration des ressources minérales peuvent ne pas toujours être rigoureuses. Lorsque tel est le cas, cela doit être signalé avec une explication de la base des hypothèses métallurgiques formulées. | · A metallurgical assessment was conducted on the 900SG ore which determined it gravity separation would deliver economic results. Further testing would be required on other mineralisation to determine the best processing method. · Apart from the 900 SG ore it can be assumed that Metallurgical characteristics have been assumed to be similar to other porphyry copper deposits throughout the Philippines which have a similar mineralogy, of predominantly Chalcopyrite and minor amounts of bornite and chalcocite. It is common for other similar deposits to have copper recoveries in excess of 85%. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Environ-mental factors or assumptions | · Hypothèses faites concernant les options possibles d'élimination des déchets et des résidus de traitement. Il est toujours nécessaire, dans le cadre du processus de détermination des perspectives raisonnables d'extraction économique éventuelle, de considérer les impacts environnementaux potentiels de l'exploitation minière et de l'opération de traitement. Bien qu'à ce stade, la détermination des impacts environnementaux potentiels, en particulier pour un projet entièrement nouveau, puisse ne pas toujours être bien avancée, l'état de la prise en compte précoce de ces impacts environnementaux potentiels doit être signalé. Lorsque ces aspects n'ont pas été pris en compte, cela doit être signalé avec une explication des hypothèses environnementales formulées. | · No limitations or modification were applied to the Mineral Resource estimate with regard to the environmental factors or assumptions. It is recognised in general that there is limited space and some environmental issues associated with the placement of any waste storage facilities or a tailings storage facility. However, there are also generally considered multiple options, such as backfill of waste and tailing underground, which will still allow for a potential future mining operation. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Densité apparente | · Qu'elle soit supposée ou déterminée. En cas d'hypothèse, la base des hypothèses. Si déterminé, la méthode utilisée, qu'elle soit humide ou sèche, la fréquence des mesures, la nature, la taille et la représentativité des échantillons. · La densité apparente des matériaux en vrac doit avoir été mesurée par des méthodes qui tiennent compte de manière adéquate des espaces vides (vugs, porosité, etc.), de l'humidité et des différences entre la roche et les zones d'altération au sein du gisement. · Discutez des hypothèses relatives aux estimations de densité apparente utilisées dans le processus d'évaluation des différents matériaux. | · Bulk density measurements were routinely taken throughout the drilling campaign and are available for all of the defined ore domains. · The method used to collect the specific gravity information for each drill hole is summarised in the sampling and core management procedures from an internal reports by Freeport-McMoRan. These procedures are summarised as follows: · Specific gravity is determined by weighing a dry core sample in air and as submerge in water. · Two 10 to 15 cm long split core samples are collected from each sampling interval, one near the start and the other near the end of the interval. · Samples were weighed in air, weighed suspended in water, and weighed in air again to determine its saturated weight. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Classification | · La base de la classification des ressources minérales en différentes catégories de confiance. · La prise en compte appropriée de tous les facteurs pertinents (c'est-à-dire la confiance relative dans les estimations de tonnage/de teneur, la fiabilité des données d'entrée, la confiance dans la continuité de la géologie et des valeurs métalliques, la qualité, la quantité et la distribution des données). · Si le résultat reflète de manière appropriée le point de vue de la personne compétente sur le dépôt. | Measured Mineral Resource Classification · To determine the Measured Mineral Resource, a maximum estimation distance of 50 meters was applied in the major direction, 25 meters in the semi-major axis, and 10 meters in the minor direction. This was complemented by a requirement for a minimum of 10 and a maximum of 16 samples. A maximum of 6 samples per drill hole was applied with at least 2 drill holes needed to be within the specified search ellipse for this category. · The maximum distances applied to the search ellipse parameters for the Measured category were based on the extents of the variogram where there appears to be robust trend, in addition to being approximately 60% of the Sill distance. Indicated Mineral Resource Classification · The grade distribution within the Purok Tan-ao block model was classified as Indicated where the geology and associated copper-gold mineralisation, within a constrained high grade (100HG), low grade (100LG) and supergene enrichment (900SG) domains could be confidently extrapolated based on the understanding of the mineralisation deposit type, the current distribution of the drilling information and the information obtained from the variogram analysis. · Based on the combination of the changes to geology and the statistics, it was considered appropriate to apply a maximum distance of 150m to the major position, 85m to the semi-major axis and 25m in the minor direction for the limits of the Indicated Mineral Resource, with a minimum number of samples at 8 and maximum number of samples at 16. Inferred Mineral Resource Classification · The Inferred Mineral Resource was extended for twice the distances applied to the Indicated Mineral Resource pushing the limits search ellipse to 300m x 150m x 50m, with a minimum of 4 sample and maximum of 20 samples defined for each block. This was considered appropriate for this level of confidence based on the broad dimensions of the copper-gold mineralisation defined to date at Purok Tan-ao. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Audits ou examens | · Les résultats de tout audit ou examen des estimations des ressources minérales. | · No independent audit or review has been undertaken on the updated Mineral Resource estimate for the Sagay Property which is the subject of this JORC Report. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Discussion of relative accuracy/ confidence | · Le cas échéant, une déclaration de l'exactitude relative et du niveau de confiance dans l'estimation des ressources minérales en utilisant une approche ou une procédure jugée appropriée par la personne compétente. Par exemple, l'application de procédures statistiques ou géostatistiques pour quantifier l'exactitude relative de la ressource dans les limites de confiance indiquées, ou, si une telle approche n'est pas jugée appropriée, une discussion qualitative des facteurs qui pourraient affecter l'exactitude et la confiance relatives de la estimation. · La déclaration doit préciser s'il s'agit d'estimations globales ou locales et, si elles sont locales, indiquer les tonnages pertinents, qui devraient être pertinents pour l'évaluation technique et économique. La documentation doit inclure les hypothèses formulées et les procédures utilisées. · Ces déclarations d'exactitude relative et de confiance de l'estimation doivent être comparées aux données de production, lorsqu'elles sont disponibles. | · All the available drill hole information relating to the Purok Tan-ao Mineral Resource estimate have been appropriately documented within this Technical Report. The author is not aware of any omission or bias that relates to the information as it has been presented in this report which relates specifically to the Mineral Resource estimate for Purok Tan-ao. · The analysis of the drill hole data statistics within each respective ore domain has identified a relatively good correlation and consistency of assay data for hundreds of meters, with some local variations being consistent with what would be expected within a relatively large porphyry copper style of mineral deposit. · The current level of Inferred, Indicated and Measured Mineral Resource estimates are considered appropriate relative to the data distribution and confidence in the distribution of the copper and gold mineralisation. · There only issue that has prevented larger portion of the Mineral Resource estimate from having a higher level of confidence is due to the drill hole data not being located over an even spacing and distribution. There are distances of over 200m in some locations between drill hole data points which, with infill drilling would be expected to be converted to a higher level of Resource category. |
Refer to ASX/AIM announcement dated 7 November 2021 "Maiden Mineral Resource estimate (MRE) for the Sagay Project"
Refer to ASX/AIM announcement dated 8 January 2024 "Celsius' Sagay Project applies for DMPF"
Refer to ASX/AIM Announcement dated 23 June 2022 "Celsius confirms copper near surface at Sagay Project"
Refer to ASX/AIM Announcement dated 17 October 2023 "Shallow Copper Results from Sagay"
Reportez-vous à ASX/AIM announcement dated 8 January 2024 "Celsius' Sagay Project applies for DMPF"
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