7 JULY, 2026 | VANCOUVER, BC

Tribeca Resources pre-drilling field program reveals potential district-scale porphyry epithermal cluster at Jiguata Project

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) is pleased to report technical updates from field programs completed at its Jiguata high sulphidation - porphyry copper exploration project in northern Chile (“Jiguata”, or the “Jiguata Project”), including geological mapping, soil and rock chip sampling, spectral and geophysical programs; together with a drilling update from its La Higuera Project (“La Higuera”, or the “La Higuera Project”).

The recently completed pre-drilling field program at the Jiguata Project has generated geological, geochemical, spectral and geophysical datasets that the Company interprets as consistent with a district-scale porphyry and high sulphidation epithermal cluster. These are preliminary interpretations, with no assurance that they will be confirmed by drilling.

Highlights:

Jiguata

Geological mapping and spectral interpretation have outlined large alteration footprints at the four distinct alteration centres, interpreted as potentially reflecting multiple intrusive centres across the project area.
Spectral results show alteration patterns interpreted as consistent with porphyry/epithermal environments, with mineral assemblages indicating epithermal advanced argillic alteration and porphyry-related phyllic alteration.
Soil and rock geochemical results present coincident Mo-W-Bi ± Cu anomalism, interpreted as potential porphyry-style pathfinder geochemistry, together with As-Sb-Te ± Ag-Au anomalism typical of lithocap and high sulphidation epithermal environments.
Ground magnetic 3D modelling has defined discrete magnetic lows proximal to stronger magnetic highs, interpreted as related to alteration and intrusive bodies, respectively.
3D inversion of the magnetotelluric (MT) geophysical survey has identified a number of resistivity signatures that the Company interprets as consistent with porphyry and epithermal systems, with important coincidence with the historic IP data.

La Higuera

At the La Higuera project in the coastal IOCG Belt, drilling has been completed at the Chirsposo Sur target and assay results are pending.

Tribeca Resources CEO, Dr. Paul Gow commented:

“The recently completed field programs have delivered a substantial amount of new technical information across the Jiguata Project and have materially improved our understanding of the property. The geological, geochemical and geophysical results from this extensive period of boots-on-the-ground work continue to support Jiguata as a compelling exploration opportunity. The pre-drilling programs have provided a strong platform for refining our integrated model and advancing Jiguata toward our maiden drill program.”

“The majority of the new data received to date covers the large La Soberana and Cetro Dorado alteration systems, which are shaping up as the initial drill targets. The multi-kilometre extent of the geochemical and geophysical anomalies in this area is highly encouraging, and we look forward to the challenge of siting the initial drill holes.“

Overview of the Jiguata Project

The Jiguata Project is a 10,000 hectare property located in the Tarapacá region in northern Chile. It is situated in the northern extension of the prolific Palaeocene and Eocene-Oligocene porphyry copper belts where it is overprinted by the younger Miocene Belt of magmatism that hosts recent large-scale high sulphidation epithermal gold and porphyry copper-gold discoveries further to the south, including Vendaval Cu-Au Porphyry (First Quantum) (“Vendaval”) and Salares Norte Au-Ag High Sulphidation Epithermal (Goldfields) (“Salares Norte”). References to nearby or regional deposits are provided for geological context only. The presence, size or grade of mineralization on other properties in the belt, including Vendaval and Salares Norte, is not necessarily indicative of mineralization on the Jiguata Project.

Tribeca holds the Jiguata Project under a five-year purchase option agreement (the “Jiguata Option”) to acquire 100% of the property. The terms of the Jiguata Option are outlined in previous news releases, including the Company’s news release dated June 19, 2025.

Geological mapping at the Jiguata Project

Historic geological mapping was focused in the central Jiguata area and undertaken in 2010-2012 by the project vendors. Tribeca has, this year, extended this mapping over much of the property area, with a focus on the exposed alteration systems where erosional windows exist within the overlying thin post-alteration andesitic volcanic unit.

On the basis of the geological mapping program, in particular the identified alteration assemblages and observed vein relationships, it is interpreted that the current exposed level at Jiguata represents the upper portion of a preserved porphyry-epithermal system. Results suggest the project is prospective for porphyry-style Cu-Mo-Au mineralization as well as high sulphidation epithermal Au-Cu-Ag mineralization associated with advanced argillic alteration, hydrothermal breccias and vuggy silica bodies. The key results from the geological mapping of the alteration centres (Figure 1) are discussed below:

Cetro Dorado

At Cetro Dorado, the easternmost alteration centre, mapping identified extensive zones of Type D quartz sulphide veinlets within advanced argillic alteration and hydrothermal jarositic breccias coincident with local stockwork vein networks interpreted as having affinity with Type B porphyry-style veining.

The combination of advanced argillic alteration, hydrothermal brecciation and porphyry-style vein textures at surface is considered by the Company to support Cetro Dorado as a key potential drill target.

La Soberana

La Soberana, the southernmost alteration centre, is characterized by multiple hydrothermal breccia bodies intermittently outcropping over an area approximately 1.8km in strike length spatially associated with extensive advanced argillic alteration.

In the southern part of La Soberana, fine banded quartz veinlets and breccia clasts containing grey quartz veinlets were observed and are interpreted as having affinity with “Type B” style porphyry veining. The observed Type-B veining may provide indications of a relatively shallow emplacement of prospective intrusive centres within the area.

The La Soberana alteration centre hosts the only historic drilling in the project area, with two shallow reverse circulation drill holes completed in 1993 to approximately 250m to 300m depth in the western portion of the system (Figure 1). The holes are considered to have been too shallow to intersect the remodelled geophysical targets as discussed below.

Figure 1. Project scale geological map highlighting mapped areas of interest with respect to previously identified alteration centres. The locations of photos from Figure 2 are shown as black triangles annotated A to E.

Figure 2. Representative photographs of selected rock types observed at Jiguata (locations referenced in Figure 1) Photo A: Fine-grained tuff with jarosite stockwork. Photo B: Jarosite ± quartz–alunite hydrothermal breccia. Photo C: Blueish grey-black quartz veinlets (“Blue-Grey Veinlets”) in quartz-alunite ± kaolin (AA) hydrothermal breccia. The veinlets are texturally similar to “Type-B” veinlets (Blue veins) typically found in Cu-Mo porphyry systems. Photo D: Chenevixite-Jarosite in alteration surfaces and fractures. Chenevixite is typically produced from the oxidation of enargite, potentially indicating the presence of hypogene copper sulphides in the area. Photo E: Quartz-alunite ± kaolin hydrothermal breccia with “Blue Grey Veinlets” and grey quartz and jarosite veinlets, fillings and alteration surfaces.

El Trono

El Trono is located on a prominent topographic high and remains only partially evaluated due to more challenging access conditions. Mapping identified extensive advanced argillic alteration, hydrothermal breccias containing grey chalcedonic quartz fragments, pervasive jarosite alteration, traces of banded quartz veining, clay-rich alteration and hydrothermal infill of a rock flour matrix.

The strongly brecciated material identified in the field is consistent with the upper expression of a hydrothermal system with evidence of multiple phases of epithermal and potential porphyry overprinting. The combination of advanced argillic alteration, hydrothermal brecciation, multiple phases of porphyry and epithermal-style veining and alteration and residual silica development is interpreted by the Company as supporting further evaluation at El Trono.

Spectral data and interpreted alteration assemblages

Spectral modelling of high-resolution WorldView-3 satellite imagery has been integrated with Terraspec spectral data from soil and rock chip samples across the project area. Interpretation of these datasets has enabled alteration mineral mapping against mineral assemblages commonly described for large-scale porphyry and epithermal systems, including those outlined by Halley et al. (2015). Supported by geological mapping, the combined WorldView-3, soil and rock chip spectral datasets have identified alteration minerals interpreted to represent typical porphyry-epithermal alteration patterns, including:

Large-scale kaolinite ± alunite ± jarosite, hematite and goethite alteration zones typical of advanced argillic environments;
Illite ± smectite ± jarosite assemblages in WorldView-3, soil and rock chip data, interpreted to represent a transition to phyllic alteration that may form a continuum with the observed illite-muscovite deeper in the system and in some cases are overprinted kaolinite-rich assemblages;
Opaline silica responses identified in the WorldView-3 datasets, commonly proximal to localised alunite and jarosite responses and consistent with vuggy silica development;
Mixed phyllic and advanced argillic alteration responses that appear to daylight through interpreted post-mineral cover, including transported material and areas of thin post-alteration andesite; and
White mica response in the WorldView-3 data, including sodium-rich paragonite zones associated with interpreted advanced argillic alteration. These paragonite-rich zones may provide vectors toward hydrothermal source areas.

The mapping of these key alteration patterns across the four alteration centres is documented in Table 1, with the spatial distribution over the La Soberana and Cetro Dorado centres shown in Figure 3.

Figure 3. Spectral interpretation with simplified alteration assemblages. The interpretation is based upon both the spectral data from the detailed Worldview-3 satellite data and Terraspec data acquired from both rock and soil samples.

Table 1. Summary of alteration centres and classification derived from interpretation of spectral datasets derived from WV3, soil and rock chip datasets.

Geochemical Results

The field program included the collection of 672 soil samples and 149 rock chip samples across the Jiguata Project. To date, multielement results from 314 soil samples and all 149 rock chips, predominantly from the La Soberana and Cetro Dorado alteration centres, have been received and interpreted. The new multielement data was integrated with the historic 599 soil and 177 rock chip results and evaluated against the mapped lithology and the corresponding alteration centres.

Preliminary interpretation has outlined two principal geochemical associations as follows:

an As-Sb-Te ± Ag-Au geochemical association spatially associated with an alteration mineral assemblage characterized by kaolinite ± alunite ± jarosite, hematite and goethite. This signature is consistent with a high sulphidation epithermal environment and/or a porphyry-related lithocap; and
an anomalous Mo-W-Sn-Bi ± Cu geochemical association that is typically considered a porphyry-style magmatic hydrothermal association. This element suite may reflect a magmatic hydrothermal fluid component and provide a vector toward a concealed porphyry centre, intrusive cupola or related mineralized source.

The distribution of these two geochemical associations in the La Soberana, Cetro Dorado and Escudo Real alteration centres is provided in Figure 4.

Figure 4. Distribution of selected elements derived from geostatistical analysis and well-documented porphyry/epithermal geochemical indicators, from historical and recently analyzed soil geochemical data from the Escudo Real, Cetro Dorado and La Soberana areas. Highlighted geochemical values are derived from soil geochemical results.

La Soberana

Geochemical results from systematic soil sampling at La Soberana have delineated an approximately 2 km long by 1 km wide, coincident Mo–Sn–W anomaly spatially associated with interpreted northeast trending structures (Figure 4). At the same location, soil geochemical anomalies of As–Sb–Te ± Ag–Au extend over a similar strike length of approximately 2 km. The Mo–Sn–W association may reflect proximity to an intrusive or porphyry-related mineralizing centre, whereas the As–Sb–Te ± Ag–Au assemblage is characteristic of higher-level epithermal environments. Collectively, these results highlight the potential for a telescoped porphyry–epithermal mineral system at La Soberana, with northeast-trending structures interpreted to have been a possible control on hydrothermal fluid flow and the distribution of potentially associated mineralization.

Cetro Dorado

At Cetro Dorado, results define the strongest lithocap-style geochemical and alteration expression identified to date at the project, with elevated As-Sb-Te ± Ag-Au anomalism spatially associated with kaolinite-alunite-jarosite-hematite alteration. Mo-W-Bi ± Cu anomalism is present but less coherent than at La Soberana, potentially indicative of a more limited influence of the potential porphyry mineralizing source, or the development of a stronger overprint remobilizing any original porphyry geochemical signature.

Escudo Real

At Escudo Real, spectral and geochemical results indicate kaolinite ± alunite ± jarosite ± hematite/goethite alteration associated with elevated As-Sb-Te ± Ag-Au anomalism. Local copper anomalism provides indications of a potential contribution from a deeper hydrothermal mineralized system, although the broader Mo-W-Bi ± Cu porphyry-style association is less well developed. Further geochemical results remain pending for the area and are expected to refine the interpretation.

El Trono

At El Trono, only limited geochemical results have been received to date. Available rock chip results include values of up to 224 ppm copper, 175 ppm arsenic, 1.7 g/t silver and 31 ppb gold. The Company considers these results, in the context of mapped advanced argillic alteration, hydrothermal brecciation and jarosite alteration, to warrant further evaluation of the El Trono alteration centre. Rock chip samples are selective in nature and may not be representative of mineralization across the broader target area.

Geophysical Modelling

Geophysical modelling of the three key geophysical datasets (pole-dipole IP, ground magnetic and MT) has been undertaken to provide constraints on the subsurface geological architecture of the epithermal and potential porphyry environment.

Ground magnetic data

Total Magnetic Intensity data from the ground magnetic survey completed at a 200m line spacing over the Jiguata Project in January 2026 by Argali Geofísica were further processed to support geological interpretation and drill planning.

The resulting model outlines a magnetic environment characterized by higher magnetic responses below and around a comparatively lower magnetic central zone (Figure 5). The higher intensity zones are interpreted to represent an intrusive body, with the vertical magnetic highs potentially representing extensions or carapaces of the deeper intrusive body. Peripheral magnetic highs broadly correlate with mapped andesitic units and dacitic domes, which are interpreted to retain relatively higher primary magnetite content. Lower magnetic responses are broadly associated with mapped tuffaceous units, as well as the principal alteration centres at La Soberana, Cetro Dorado, Escudo Real and El Trono.

Within these broader reduced magnetic intensity zones, the 3D model defines discrete magnetic lows (Figure 5) located proximal to stronger magnetic highs extending upward from the deeper higher magnetic intensity zone. In a porphyry-epithermal setting, these magnetic low features can represent zones where hydrothermal alteration has destroyed or replaced primary magnetite, producing zones of magnetic depletion adjacent to intrusive or volcanic rocks with higher magnetic susceptibility. Higher magnetic susceptibility in the porphyry environment may also be caused by the presence of magnetite associated with potassic alteration.

Magnetotelluric Survey

A magnetotelluric (“MT”) survey was completed over the Jiguata Project with data delivered in May 2026. The survey was completed by Southernrock Geophysics and included a grid layout with a 750m x 750m grid covering approximately 84 square km. The results were processed by the contractor, with provision of 1D and 3D inversions of the subsurface resistivity across the project area.

The 3D MT inversion model indicates the area has a complex resistivity structure, with large zones of both extremely high (> 1000 ohm.m) and extremely low (<20 ohm.m) resistivities. In summary, the MT survey delineated four broad resistivity/conductive features across the project (Figure 5):

A deep underlying resistive feature, as well as flanking resistive domains, that are broadly coincident with mapped andesitic volcanic units and dacitic dome complexes. These responses may reflect competent volcanic or intrusive lithologies, silicification, or a combination of lithological and alteration related features.
Near surface (<0m – 150m depth) highly resistive (>1000ohm.m) features spatially associated with areas of advanced argillic alteration, residual silica, hydrothermal breccias and lithocap-style alteration assemblages. These responses are considered consistent with silicification and residual silica development, both of which are common in high sulphidation epithermal and lithocap environments.
Conductive (< 50 ohm.m) zones beneath selected resistive features, which may reflect clay rich alteration, sulphide-bearing alteration, groundwater-bearing structures, conductive lithologies or a combination of these factors. Some of these zones are within the depth range of 500m-1500m.
Moderately resistive (> 100 ohm.m) sub vertical zones forming “funnel” like features that extend through areas of lower resistivity to upper layers of high resistivity (not visible on the section in Figure 5) that are spatially correlated with the alteration centres.

Importantly, the conductive zones present in the MT data beneath the shallow resistors are broadly coincident with the low resistivity and high chargeability zones evident in the historic IP data, providing encouragement through a presence in multiple datasets.

The coexistence of near surface resistive features and underlying conductive zones is considered relevant in the context of porphyry-epithermal exploration. In high sulphidation and lithocap settings, silicification and residual silica may form resistive caps, while clay rich or sulphide bearing alteration may generate comparatively conductive responses at depth or along structural corridors.

These results from the ground magnetic and MT surveys provide additional subsurface context for the Jiguata Project and are being used to support further geological interpretation, drill targeting, and systematic follow up exploration.

Figure 5. Approximate north-south long section through the La Soberana and Cetro Dorado alteration centres, with results of the magnetic (Vertical Integral of the Analytic Signal) (top) and Magnetotelluric (MT) (bottom) 3D inversions.

Next Steps at Jiguata

Results of the Jiguata field program provide geological, geochemical and geophysical data that the Company interprets as consistent with its exploration model for a potential porphyry and high sulphidation epithermal environment at Jiguata, with alteration centres over an area of approximately 7km x 4km. The Company is now in the process of finalizing the integrated interpretation of the results and conducting targeting analysis for the maiden drill program.

La Higuera Drilling Update

At the Company’s La Higuera Project, a drill program comprising three diamond holes for a planned total of approximately 1,050m, was initiated at the Chirsposo Sur target, as previously announced in the news release of April 28, 2026. Two holes were designed to test discrete magnetic highs within the main magnetic and gravity target, with a third hole to the south to test a rare coincident low resistivity (<60 ohm.m) anomaly evident in the pole-dipole IP data.

The program has been expanded with an additional hole drilled into the southernmost discrete magnetic anomaly.

All four holes have been completed and assay results will be reported in due course as they are received from the laboratory.

Analysis and QA/QC Procedures

The geological interpretations described above for the four alteration centres are based on surface mapping, review of spectral datasets and geochemical statistical analysis. Only limited historic drilling has been completed to date, and there can be no assurance that the interpreted mineralized systems will be confirmed through future exploration programs.

The technical information presented in this release is based on geological mapping, surface geochemical sampling, spectral analysis and geophysical surveys completed across the Jiguata Project during 2026 as well as analysis of previous soil and rock geochemical sampling. Geological mapping and surface sampling were completed by independent geological consultants Asesorias Geomineras, with sampling locations, geological observations and alteration features recorded in the field and subsequently compiled for interpretation.

Soil and rock chip samples collected during the field program were submitted to ALS Patagonia (“ALS”) in Copiapó, northern Chile, for multielement geochemical analysis. A suite of reference standards and duplicates were inserted and submitted with each batch, comprising approximately 10% of the total sample count. The soil samples were analyzed using the ME-MS61L method with gold analyzed by method Au-AA23. The rock samples were analyzed using the ME-MS61 method with gold analyzed by method Au-AA23. The rock chip and soil samples were subject to spectral analysis, also completed by ALS, using a Terraspec instrument, with processing of the spectral data by consultant group GlobalOreAdvisory Pty Limited (“GlobalOre”), based in Brisbane, Australia, using proprietary methods. Geochemical and spectral datasets were compiled and reviewed using ioGAS software and were subject to internal QA/QC review, including checks of sample data, analytical results, spatial relationships and consistency with mapped geology and alteration observations. Areas interpreted as transported surface material or volcanic units with potential to mask underlying hydrothermal responses were considered separately during interpretation.

The Company’s geochemical interpretations remain preliminary, as multielement analytical results have been received for 314 of the 672 soil samples collected, together with all 149 rock chip samples. Additional results, once received, will be reviewed and incorporated into the Company’s geological and geochemical interpretation.

Ground magnetic data collected over the Jiguata Project in early 2026 by Argali Geofísica were further processed using Vector Residual Magnetic Intensity filtering and analytic signal-based products, including the Vertical Integral of the Analytic Signal, to improve geological interpretation in the project’s low magnetic latitude setting. The processed magnetic data were used to support 3D magnetic inversion modelling and interpretation of magnetic basement architecture, magnetic depletion zones and potential lithological or alteration-related features.

The magnetotelluric survey completed over the Jiguata Project was conducted by Southernrock Geophysics and finalized in May 2026. The MT data were processed and modelled using 3D inversion techniques to assess subsurface resistivity variations. MT responses are not diagnostic of mineralization and have been interpreted in the context of lithology, alteration, structure and potential hydrothermal fluid pathways.

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the Jiguata and La Higuera Properties. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the Jiguata or La Higuera Properties.

About Tribeca Resources

Tribeca Resources is a portfolio-driven copper explorer focused on northern Chile. Led by a team with a track-record of discovery and significant equity ownership, Tribeca Resources’ objective is to discover the mineral resources for the next generation of copper mines in Chile.

Tribeca Resources’ flagship La Higuera IOCG Project is 100%-owned and has seen approximately 10,000m of drilling with mineralization defined over a 1.4 kilometre strike length at the Gaby discovery. The Chiricuto and Jiguata projects are earlier stage porphyry copper-gold-molybdenum targets, held under purchase option agreements.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Neither the TSX Venture Exchange Inc. nor its Regulation Service Provider (as that term is defined in the policies of the TSX Venture Exchange Inc.) accepts responsibility for the adequacy or accuracy of this press release.

This press release does not constitute or form a part of any offer or solicitation to purchase or subscribe for securities in the United States. The securities referred to herein have not been and will not be registered under the Securities Act of 1933, as amended (the “Securities Act”), or with any securities regulatory authority of any state or other jurisdiction in the United States, and may not be offered or sold, directly or indirectly, within the United States or to, or for the account or benefit of, U.S. persons, as such term is defined in Regulation S under the Securities Act (“Regulation S”), except pursuant to an exemption from or in a transaction not subject to the registration requirements of the Securities Act.

Forward-Looking Information

This press release contains forward-looking statements and information that are based on the beliefs of management and reflect the Company's current expectations. When used in this press release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the negative of these words or such variations thereon or comparable terminology are intended to identify forward-looking statements and information. The forward-looking statements and information in this press release include statements regarding the relationship between alteration and rock characteristics identified in geological mapping and potential mineralization, the relationship between geophysical and geochemical survey results and potential mineralization, the identification, prioritization and anticipated quality of exploration targets, the interpreted scale, extent and geological significance of alteration systems, the size and timing of the proposed 2026 drill programs, the integration of new and historic data to define drill targets, the anticipated completion of field activities and commencement of drilling (including the potential for weather-related delays), the ongoing engagement of GlobalOre and its impact on exploration outcomes, the anticipated effectiveness of exploration methodologies, the use of proceeds from recently completed financings, the ability to secure and maintain necessary permits and approvals and the operations and future plans of the Company, including potential additional drilling and property acquisitions.

Such statements and information reflect the current view of the Company. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the ability of the Company to pay the purchase price and make any other payments required under the Jiguata Option, risks associated with mineral exploration, including the risk that actual results of exploration will be different from those expected by management and that geological, geophysical and geochemical interpretations may not be confirmed by drilling, the preliminary nature of the Company’s exploration data and interpretations, including the risk that additional assay, geochemical, spectral or geophysical results may not support, or may modify, the Company’s current interpretations, the risk that geophysical anomalies may be caused by factors unrelated to mineralization, the risk that the Company’s targeting analysis may not result in the identification of drill targets or that drilling, if completed, may not result in the discovery of mineralization, risks of delays or interruptions to exploration activities due to weather, logistical or access issues, risks related to obtaining and maintaining necessary permits and approvals, risks related to the availability and retention of key personnel, the ability to raise additional capital, fluctuations in commodity prices and market conditions, the reliability of historic or third-party data, the risk that any mineralization identified may be limited in size, continuity or economic significance, unanticipated costs or environmental liabilities, the risk that new laws or regulations could adversely affect the business and results of operations of the Company and anticipated work on the Company’s projects and other risks inherent in early‑stage mineral exploration projects.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward-looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

27 MAY, 2026 | VANCOUVER, BC

Tribeca Resources Accelerates 100% Acquisition of Gaby and Reports Progress at the Jiguata Porphyry and La Higuera IOCG projects

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) reports progress at its northern Chile copper projects.

Tribeca has exercised its right, under an existing purchase option agreement (the “Purchase Option Agreement”), to acquire a 100% interest in the Gaby-Totito property at its La Higuera IOCG Project (“La Higuera”). This transaction provides Tribeca with, for the first time, 100% and outright ownership of all concessions across its flagship La Higuera project.

In addition, drilling is progressing at the Chirsposo Sur target, located 4km to the south of Gaby, and pre-drilling field activities at the Jiguata porphyry – high sulphidation copper exploration Project (“Jiguata”) are now complete.

Highlights:

Gaby-Totito property purchase option exercised via US$500,000 completion payment. Deferred payments to be made through to September 2027 (see details below), with a 1% NSR retained by the Project Vendors over future production
First of three planned drill holes at the previously untested Chirsposo Sur target completed. Assays are pending
Field data collection for the Jiguata MT survey completed, with data processing and interpretation in progress. Drill planning will commence once pending hyperspectral and multielement soil data are received from the laboratory

Tribeca Resources CEO, Dr. Paul Gow commented:

“We are very pleased to have acquired 100% ownership of the Gaby-Totito property which hosts the exciting Gaby discovery. This proactive transaction is a pivotal milestone and underscores our disciplined approach to capital management. We look forward to proceeding with additional drilling at the Gaby target later in the year.”

“Four kilometers south of Gaby, at the Chirsposo Sur target, drilling is progressing. We are testing a “blind” geophysical target, consistent with our science-driven approach to identifying and testing previously missed or misunderstood targets below cover. Assay results from the first hole are expected in 4-6 weeks and will be reported in due course.”

“At Jiguata, which we believe has potential to host a large Miocene porphyry copper or high sulphidation system, we are excited to plan our maiden drill program, once analyses for the remaining soil and rock samples are received.”

Exercise of Gaby Purchase Option

The La Higuera project was originally consolidated through four separate purchase or option-to-purchase agreements. Three of the four properties have been 100% outright owned since 2022. The Gaby-Totito properties, held under a 100% Purchase Option Agreement, had a final US$1.55 million payment due by September 2026. Tribeca Resources has exercised this option and now holds a 100% interest in the project. The option was exercised early through negotiation with the project vendors, a private Chilean group of investors. US$500,000 of the US$1.55 million final purchase payment has been paid with deferred payments due as follows:

US$500,000 payable by September 15, 2026
US$550,000 payable by September 15, 2027
Exploration levy payments of 10% of exploration expenditure incurred on the properties between 1 January 2026 and 15 September 2027 are to be made semi-annually.

The project vendors retain a 1% NSR royalty over future production from the Gaby-Totito property.

Taking outright ownership of Gaby-Totito demonstrates the confidence Tribeca has in the potential for the mineralised Gaby system to ultimately form an integral part of a new multi-deposit copper district at La Higuera. This transaction delivers flexibility in how Tribeca finances and advances this highly prospective property.

Figure 1. Location of the Gaby-Totito licences. Also shown are the five targets within the La Higuera project and the three proposed drill collars at Chirsposo Sur.

Chirsposo Sur drill program

As previously announced in the news release of April 28, 2026, a drill program comprising three diamond holes for approximately 1,050m, is underway at the Chirsposo Sur target. Two holes are designed to test discrete magnetic highs within the main magnetic and gravity target, with a third hole to the south (Figure 2) to test a rare coincident low resistivity (<60 ohm.m) anomaly evident in the pole-dipole IP data.

The first of the three holes, CSS-001, was drilled to the west and has now been completed to a depth of 327m. The drill core is currently being cut and will be submitted to the laboratory for assay, with results reported in due course.

The rig is now moving to the second planned hole which will be testing a second magnetic high 300m to the south of CSS-001within the main magnetic and gravity target. The third proposed hole, testing a low resistivity IP anomaly, is a further 500m to the south.

Figure 2. Location of the three proposed drill holes at the Chirsposo Sur target, shown in the context of the ground magnetic data.

Jiguata update

Geological mapping at Jiguata was completed in April, with the key outcomes from this work being the ground truthing of the four large alteration systems delineated from the detailed satellite data (see news release dated February 25, 2026). These alteration systems variably display indications of a high-level hydrothermal system, including associated advanced argillic alteration, silica-alunite breccias, vuggy quartz alteration and dacite domes. Rock sampling was completed in conjunction with the geological mapping, with 149 samples submitted to the laboratory. The final multielement analyses have now been returned and will be reported in due course.

A large soil sampling program was also completed, with a focus on the four large alteration systems, with a sampling spacing of between 100m and 400m. The 672 samples have been submitted to the laboratory for multielement analysis, with approximately 50% of the results returned to date.

The data collection component of the previously reported magneto-telluric (MT) survey has now been completed at Jiguata. The survey was designed to cover the four large alteration zones delineated by the geological mapping. The survey comprised data collection at 128 stations at a nominal 750m spacing to cover approximately 84 square kilometers. The data is currently being processed and interpreted.

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the La Higuera IOCG Project, the Jiguata Project and the Chiricuto property. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the La Higuera IOCG Project, the Jiguata Project and the Chiricuto property.

About Tribeca Resources

Tribeca Resources’ flagship La Higuera IOCG Project is now 100%-owned and has seen approximately 10,000m of drilling with mineralization defined over a 1.4 kilometer strike length at the Gaby discovery. The Chiricuto and Jiguata projects are earlier stage porphyry copper-gold-molybdenum targets, held under purchase option agreements.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Forward Looking Information

This press release contains forward-looking statements and information that are based on the beliefs of management and reflect the Company's current expectations. When used in this press release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the negative of these words or such variations thereon or comparable terminology are intended to identify forward-looking statements and information. The forward-looking statements and information in this press release include statements regarding the relationship between alteration and rock characteristics identified in geological mapping and potential mineralization, the identification, prioritization and anticipated quality of exploration targets, the interpreted scale, extent and geological significance of alteration systems, the relationship between geophysical results and potential mineralization, the size, focus and timing of the proposed 2026 drill programs, the anticipated effectiveness of exploration methodologies, the integration of new and historic data to define drill targets, planned exploration activities beyond drilling, the anticipated completion of field activities and commencement of drilling (including the potential for weather-related delays), the use of proceeds from recently completed financings, the ability to secure and maintain necessary permits and approvals and the operations and future plans of the Company, including potential additional drilling and property acquisitions.

Such statements and information reflect the current view of the Company. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the ability of the Company to pay the purchase price and make any other payments required under the Jiguata Option Agreement, as well as to complete final purchase and exploration levy payments to acquire the Gaby target, the confidence of management that the mineralised Gaby system may ultimately form an integral part of a new multi-deposit copper district at La Higuera, risks associated with mineral exploration, including the risk that actual results of exploration will be different from those expected by management and that geological, geophysical and geochemical interpretations may not be confirmed by drilling, risks of delays or interruptions to exploration activities due to weather, logistical or access issues, risks related to obtaining and maintaining necessary permits and approvals, risks related to the availability and retention of key personnel, the ability to raise additional capital, fluctuations in commodity prices and market conditions, the reliability of historic or third-party data, the risk that any mineralization identified may be limited in size, continuity or economic significance, unanticipated costs or environmental liabilities, the risk that new laws or regulations could adversely affect the business and results of operations of the Company and anticipated work on the Company’s projects and other risks inherent in early‑stage mineral exploration projects.

There are several important factors that could cause the Company’s actual results to differ materially from those indicated or implied by forward-looking statements and information. Such factors include, among others: reliance on key management; changes in the credit or security markets; the risk that exploration activities, including drilling, may not result in the discovery of economically viable mineralization; the risk that geological, geophysical or geochemical interpretations may prove inaccurate or incomplete; risks inherent in early‑stage mineral exploration projects for which no mineral resources have been defined; risks related to the Company’s ability to maintain its interest in exploration properties; results of operation activities; unanticipated costs and expenses; fluctuations in commodity prices; the reliability and limitations of preliminary, historic or third‑party exploration data; and general market and industry conditions. The Company cautions that the foregoing list of material factors is not exhaustive. When relying on the Company's forward-looking statements and information to make decisions, investors and others should carefully consider the foregoing factors and other uncertainties and potential events.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

28 APRIL, 2026 | VANCOUVER, BC

Tribeca Resources Exploration Update

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) is pleased to report that drilling is commencing at its La Higuera IOCG Project (“La Higuera”) and to also provide an update on its ongoing field exploration activities at the Jiguata porphyry – high sulphidation copper exploration Project (“Jiguata”), both located in northern Chile.

Highlights:

Drilling commencing this week at the previously untested Chirsposo Sur target; one of five targets at Tribeca’s La Higuera Project. An approximate 1,050m three-hole program is planned
The Chirsposo Sur target comprises a coincident geophysical anomaly in ground magnetic, gravity and induced polarization datasets, located under thin gravel cover of an estimated maximum 20m depth
Jiguata pre-drilling work program expanded to include magneto-telluric (“MT”) geophysical surveying. The MT survey has commenced, with the objective of constraining the location of any intrusive bodies and testing for potential porphyry – high sulphidation sulphide mineralization under the four large alteration systems recently delineated by geological mapping across the project area

Tribeca Resources CEO, Dr. Paul Gow commented:

“We now have two exciting field campaigns in progress. Drill platforms have been prepared and a diamond drill rig is mobilizing to the Chirsposo Sur target, which we believe displays a similar geophysical signature, magnetite mineralogy and interpreted structural setting to our Gaby IOCG discovery.

"In addition, MT surveying is now in progress at the Jiguata project in northern Chile, which we believe has potential to host a large Miocene porphyry copper or high sulphidation system. MT surveying typically investigates to a deeper level than traditional IP surveying. We look forward to integrating the MT results with our other systematically collected and high-quality pre-drilling datasets to target drilling to test this large and exciting system.”

The La Higuera Project

The La Higuera district hosts multiple known iron-oxide copper-gold (IOCG) or iron-oxide apatite (IOA) deposits, including the historic La Higuera high-grade underground copper mine, and the large El Tofo magnetite deposit. Tribeca Resources’ La Higuera Project comprises 2,827 hectares of exploration and exploitation licences within the district, and contains five discrete targets (Figure 1). Tribeca’s objective is to develop a district with multiple copper-gold (±iron, ±cobalt) mineral resources as are present in other northern Chilean IOCG districts, such as the Candelaria/Punta del Cobre and the Mantoverde/Santo Domingo districts.

To date, Tribeca has drilled at only two of the five targets. At the Gaby target, Tribeca intersected IOCG-style copper-gold mineralization over a 1.4km strike length. The mineralization is hosted in a north-south trending complex of magnetite-bearing breccias and veins interpreted as related to a strand of the Atacama Fault System. Thick copper-gold zones, up to 285m downhole length (comprising potentially 140m true thickness assuming a vertical orientation) were consistently intersected along the strike length, with a best intersection of 268m @ 0.66% Cu and 0.14 g/t Au in hole GBY001 (see news release dated 30 January 2023). Cobalt and magnetite are also present in the mineralization and could be potential by-products, as proposed for the Santo Domingo project of Capstone Copper further north in the Chilean Coastal IOCG Belt. Preliminary metallurgical test work completed in 2008 on historic drill core from the Gaby mineralization indicated potential to produce a copper-gold concentrate, a magnetite concentrate and a cobalt concentrate (comprised of pyrite) from the mineralization.

Tribeca also completed two diamond holes at the Chirsposo target, approximately 3km south of the Gaby target, intersecting a strong magnetite-dominated hydrothermal alteration system with a best intersection of 167m @ 0.21% Cu from 56m depth. This included an interval of 12m @ 0.91% cu and 0.24 g/t Au (see news release dated 17 May 2023).

Figure 1. Location of the five targets within the La Higuera project. The locations of the three proposed drill collars at Chirsposo Sur are shown.

Chirsposo Sur target

The Chirsposo Sur Target comprises an interpreted strong hydrothermal magnetite alteration system under thin gravel cover in the southern La Higuera project area. The ground magnetic signature of the alteration system and the interpreted structural setting appear very similar to that at the Gaby discovery, approximately 4km to the north. Both systems display associated magnetic intensities on the order of >2500 nT, and both comprise kilometer-scale, linear, broadly north-south trending, magnetic anomalies that are crosscut by a series of northwest-trending faults (Figure 2). Inversion of the ground magnetic data at Chirsposo Sur indicates the system comprises a steeply dipping magnetite alteration system of 1.2 km strike length. The interpreted body is also coincident with an intense (>30 mV/V) north-south IP chargeability trend that stretches over 2.4km, along with a broadly coincident 0.5-1.0 mGal residual gravity anomaly.

Figure 2. Same-scale comparison of the ground magnetic data, and interpreted structural settings, from the Gaby and Chirsposo Sur magnetite alteration systems.

Chirsposo Sur drill program

Two historic vertical diamond holes at the Chirsposo Sur Target, drilled approximately 200m to the west of the body (CB-02, CB-03 – Figure 3) intersected IOCG-style alteration with weak copper mineralisation (8m @ 0.23% Cu from 38m in hole CB-02), as reported in the NI 43-101 technical report filed by Tribeca Resources on October 24, 2022 (the “La Higuera Technical Report”). The drill core demonstrated strong magnetite alteration with a coarse-grained pyrite-dominated sulphide assemblage present in hole CB-02.

The planned drill program comprises three diamond holes for approximately 1,050m, with two holes to test discrete magnetic highs within the main magnetic and gravity target (Figure 3), and one hole to the south to test a rare coincident low resistivity anomaly evident in the IP data.

Figure 3. Location of the three proposed drill holes at the Chirsposo Sur target, shown in the context of the ground magnetic data.

Jiguata MT geophysical survey

Initial technical information from the recently completed field mapping and sampling activities at Jiguata were reported in Tribeca’s news release dated February 25, 2026. One of the key outcomes from this work was to delineate four large alteration systems (Figure 4) that variably display indications of a high-level hydrothermal system, including associated advanced argillic alteration, silica-alunite breccias, vuggy quartz alteration and dacite domes.

Traditional IP surveying was completed over the area of three of the four alteration systems in 2014, all three of which displayed significant IP chargeability anomalies. MT surveying typically has a greater depth of investigation than conventional IP surveying, such that a combination of the two methods has been shown to work successfully elsewhere in the Miocene Belt further south in Chile and Argentina, with notable examples including the Valeriano and Altar deposits.

The MT surveying at Jiguata is being undertaken to extend the depth range of resistivity information over the four large alteration centres. Results are expected by the second half of May, and will be reported in due course.

Figure 4. Location of the four alteration centres delineated at the Jiguata project via mineral mapping utilizing high resolution satellite imagery and field mapping

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the La Higuera IOCG Project, the Jiguata Project and the Chiricuto property. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the La Higuera IOCG Project, the Jiguata Project and the Chiricuto property.

About Tribeca Resources

Tribeca Resources’ flagship La Higuera IOCG Project is 100%-owned and has seen approximately 10,000m of drilling with mineralization defined over a 1.4 kilometer strike length at the Gaby discovery. Most of the La Higuera Project is held as 100%-owned properties, but with the properties overlying the Gaby target held under a purchase option agreement. The Chiricuto and Jiguata projects are earlier stage porphyry copper-gold-molybdenum targets, held under purchase option agreements.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Forward Looking Information

This press release contains forward-looking statements and information that are based on the beliefs of management and reflect the Company's current expectations. When used in this press release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the negative of these words or such variations thereon or comparable terminology are intended to identify forward-looking statements and information. The forward-looking statements and information in this press release include statements regarding the relationship between alteration and rock characteristics identified in geological mapping and potential mineralization, the identification, prioritization and anticipated quality of exploration targets, the interpreted scale, extent and geological significance of alteration systems, the relationship between geophysical results and potential mineralization, the size and timing of the proposed 2026 drill programs, the anticipated effectiveness of exploration methodologies, the integration of new and historic data to define drill targets, planned exploration activities beyond drilling, the anticipated completion of field activities and commencement of drilling (including the potential for weather-related delays), the use of proceeds from recently completed financings, the ability to secure and maintain necessary permits and approvals and the operations and future plans of the Company, including potential additional drilling and property acquisitions.

Such statements and information reflect the current view of the Company. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, risks associated with mineral exploration, including the risk that actual results of exploration will be different from those expected by management and that geological, geophysical and geochemical interpretations may not be confirmed by drilling, risks of delays or interruptions to exploration activities due to weather, logistical or access issues, risks related to obtaining and maintaining necessary permits and approvals, risks related to the availability and retention of key personnel, the ability to raise additional capital, fluctuations in commodity prices and market conditions, the reliability of historic or third-party data, the risk that any mineralization identified may be limited in size, continuity or economic significance, unanticipated costs or environmental liabilities, the risk that new laws or regulations could adversely affect the business and results of operations of the Company and anticipated work on the Company’s projects and other risks inherent in early‑stage mineral exploration projects.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

25 FEBRUARY, 2026 | VANCOUVER, BC

Potential Large scale Porphyry - High Sulphidation System at Jiguata Project — Tribeca Resources Technical Update

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) is pleased to report technical updates from ongoing field programs and integrated analysis of mapping, soil sampling, hyperspectral and geophysical datasets at its Jiguata porphyry copper exploration project in Northern Chile.

Highlights:

Structural analysis indicates the Jiguata project is situated adjacent to the crustal scale north-south oriented Loa fault and at the intersection of significant NW and NE structures, which are critical components in the formation of major porphyry Cu-Au-Mo and high sulphidation epithermal Au-Ag-Cu deposits within the Chilean Andes.
Four substantial alteration centres have been delineated along a 7 km by 4 km northwest-oriented trend, suggesting a sizeable multiphase porphyry-epithermal district
The alteration mineralogy and its distribution point toward the development of potential porphyry-related advanced argillic, steam-heated zones, which may conceal underlying mineralization
Geological mapping has revealed large-scale, high-energy alunite-jarosite-bearing phreatic and hydrothermal breccias, as well as relatively unaltered dacitic porphyritic domes. These features are interpreted to represent multiphase porphyry intrusive centres at depth within a telescoped system
Coincident IP chargeability and low resistivity anomalies match the scale and intensity observed in other recent deep porphyry discoveries beneath “barren” porphyry-related advanced argillic caps
Multiple resistivity signatures within intensely altered zones are interpreted as indicators of high sulphidation epithermal vuggy silica targets and “silica shoulders” associated with deeper porphyry systems

Tribeca Resources CEO, Dr. Paul Gow commented:

“We are very pleased with what we are uncovering at the Jiguata Project. With four large zones of alteration developed over a 7km length, in the right structural setting, we can see a district coming together. While we are now awaiting detailed geochemical results and ground spectral information that will add to this picture, we believe the signs are there for the development of mineralization at depth. This systematic approach, although requiring significant pre-drilling field activity, should yield high quality drill targets that we can test with confidence. Field work is ongoing, but we are confident that drill holes can be targeted in a way that fully encapsulates all the data gathered during this systematic phase, after which we will look to mobilise drill rigs to priority targets.”

Jiguata Porphyry Copper-Molybdenum Project

The Jiguata Project is a 10,000 hectare property located in the Tarapacá region in northern Chile. It is situated in the northern extension of the prolific Palaeocene and Eocene-Oligocene porphyry copper belts where it is overprinted by the younger Miocene Belt of magmatism that hosts recent large scale high sulphidation epithermal gold and porphyry copper-gold discoveries further to the south, including Vendaval Cu-Au Porphyry (First Quantum) (“Vendaval) and Salares Norte Au-Ag High Sulphidation Epithermal (Goldfields) (“Salares Norte”) (Figure 1). References to nearby or regional deposits are provided for geological context only. The presence, size or grade of mineralization on other properties in the belt, including Vendaval and Salares Norte, is not necessarily indicative of mineralization on the Jiguata Project.

Figure 1. Location of the Jiguata Project within the Miocene Belt of northern Chile. Deposits sizes and structural interpretation from *Farrar, D. G., Tosdal, R. M., and Dilles, J. H., 2023, Lithospheric architecture of the Central Andes: Economic Geology, v. 118, no. 6, p. 1253–1280.

Structural setting and prospectivity of the Jiguata Project

Structural interpretation has been completed across the Jiguata Project, incorporating newly acquired geophysical surveys and evolving field geological mapping. This interpretation indicates the project is situated along the Domeyko Structural Corridor, a continental-scale, structural feature that is defined by a 40–60 km wide zone that stretches for more than 1,000 km in northern Chile. The Loa Fault system, part of the Domeyko system, has been interpreted to pass through the Jiguata Project. The Domeyko Structural Corridor hosts significant giant porphyry systems in northern Chile, including Escondida, Chuquicamata, Nueva Union, Collahuasi, Quebrada Blanca and Cerro Colorado, which are referenced solely to illustrate the regional geological setting. Such deposits are not necessarily indicative of mineralization on the Jiguata Project.

Structural analysis has also interpreted coalescing oblique structural controls, oriented northwest and northeast within the Domeyko Structural Corridor. The northeast trending Quebrada Parca - Quebrada Minacucho fault system, which is a proven deep seated, fault zone that hosts porphyry style mineralization at the Cerro Colorado deposit and Queen Elizabeth prospect to the west of Jiguata, has been interpreted as transecting the Jiguata Project.

Four Alteration Centres Highlight Multiple Priority Targets at Jiguata

Alteration mapping from multispectral satellite imagery, supported by ongoing field mapping, has identified four significant alteration centres within a ~7 km x 4 km corridor at Jiguata (Figure 2). The alteration centres, referred to as La Soberana, Escudo Real, El Trono and Cetro Dorado, present as broad alteration zones in favourable structural settings, coincident with mapped breccias, and at La Soberana dacitic domes, along with prospective geophysical responses.

La Soberana

The alteration centre represents a historical focus for exploration activities at Jiguata and is defined by an approximate 2.5 km x 1.5 km multispectral alteration and mapped alteration zone proximal to mapped hydrothermal breccias and dacitic porphyritic domes.

The alteration centre is situated at the intersection of a prominent northwest trending structural zone and the interpreted north-south trending Loa Fault zone. Preliminary soil pXRF results outline coincident anomalism in As, Mo and Pb with historic rock chips returning up to 1,700 ppm Mo. The location features coincident high IP chargeability and low resistivity responses, along with an interpreted complex magnetic signature. Historic limited drill testing, comprising two reverse circulation holes drilled to 250m-300m depth, identified broad zones of anomalous copper hosted within a variably altered andesite host, however the historic drilling is considered to have been too shallow, and too far south, to have intersected remodelled geophysical responses at La Soberana.

Cetro Dorado

The Cetro Dorado alteration centre is situated approximately 3.5km to the northeast of La Soberana (Figure 2) and represents the northeastern-most target, situated within the interpreted Loa Fault zone proximal to the intersection of major northeast and northwest faults. The alteration centre is defined by an approximate 3.2 km x 2.0 km alteration footprint coincident with an interpreted low magnetic zone. IP modelling defines a northeast trending moderate chargeability response (+ 25 mV/V – Figure 3) with localised cores of coincident high chargeability and low resistivity along with deeper resistive “root” features. Preliminary soil pXRF analyses delineate a broad As anomaly coincident with the alteration and geophysical features within the area (Figure 4). Field mapping is underway in this area.

Escudo Real

Escudo Real is situated approximately 4km to the northwest of La Soberana proximal to a prominent northwest trending structural feature. The alteration centre is defined by a 2.5 km x 1.8 km alteration footprint situated between El Trono to the northwest and La Soberana to the southeast. Preliminary field mapping has identified northwest trending hydrothermal breccias bearing alunite and jarosite within the broad alteration zone. IP coverage outlines a northwest-trending resistive feature with partially coincident chargeability and offset low resistivity responses which remain open towards the northeast. Soil geochemistry has not yet been completed at this target location.

El Trono

El Trono is situated approximately 5.5km to the northwest of La Soberana. The location is considered a high priority target defined by a locally prominent topographic high with alteration modelled from satellite data extending over approximately 2.0 km x 2.0 km, proximal to the interpreted northeast Minacucho fault system. Encouragingly, the modelled multispectral and preliminary mapped alteration indicates the presence of a substantial silica and potentially sulphide-rich core with peripheral clay rich alteration halos. Topographical access constraints have limited detailed mapping and have impeded the advancement of geochemical and geophysical coverage; however, historic rock chips have returned values of >200 ppm Cu and up to 0.03 g/t Au proximal to mapped jarosite-bearing breccias. El Trono is prioritized for completion of soil geochemical surveys and potential extension of geophysical surveys to advance potential drill targets.

Preliminary geophysical modelling and interpretations

Results have been received from the recently completed ground magnetic survey across the Jiguata Project area. Interpretation of preliminary total magnetic intensity (TMI) data (analytical signal) outlines a broad magnetic low that contains discrete magnetic highs. The magnetic low is spatially coincident with mapped and interpreted alteration, while the discrete magnetic highs are observed to be associated with mapped dacitic porphyritic domes.

The Company interprets that the discrete magnetic highs may represent potential intrusive centres and/or feeder zones, whereas the broader magnetic low may reflect magnetite-destructive alteration. An objective of the current work is to combine the interpretation of hyperspectral mineral composition patterns with detailed modelling of the geophysical datasets to provide vectors towards mineralized centres.

Interpretation and 3D remodelling of historic induced polarization (IP) data delineate two principal chargeability trends: one northeast-trending and one northwest-trending, with coincident low resistivity cores centred on the identified alteration centres (Figure 3).

The IP data also identified discrete extensive resistive “root” features developed proximal to low resistivity and elevated chargeability responses.

At La Soberana and Cetro Dorado, discrete magnetic highs appear to occur adjacent to coincident low resistivity and chargeable responses, supporting these areas as priority targets for follow-up work.

Figure 3. Summary maps of the geophysical signatures in relation to the four alteration centres.

Initial pXRF soil geochemical results

Preliminary pXRF analysis of soil samples has been completed over the La Soberana and partially across the Cetro Dorado zones (Figure 4). The samples have subsequently been submitted to the laboratory for multielement geochemistry and hyperspectral analysis. At a high level, broad, coincident multi-element pXRF geochemical anomalies have been delineated that are spatially associated with interpreted alteration features and structural settings. See below for information related to analysis and QAQC procedures for the pXRF data, which are preliminary in nature; laboratory results are pending and will be reported once received.

The multi-element pXRF anomalies define a northeast trending pattern, extending up to approximately 2.5 km at La Soberana and 1.9 km at Cetro Dorado. These anomalies correlate with IP chargeability and low resistivity responses.

Interpretation of the soil dataset will be refined when final laboratory geochemical and spectral results are received. Unfortunately, current turnaround times at analytical laboratories in Chile are increasing with the current high level of exploration activity in the country, making the timing of receipt of these analyses uncertain.

Figure 4. Summary results of pXRF analyses collected to date from the soil samples in the northeastern oriented zone covering the La Soberana and Cetro Dorado targets.

Progressing geological mapping

Field geological mapping has been completed across the La Soberana alteration centre and continues to unfold across the remaining alteration centres. At La Soberana, mapping has delineated a northeast trending hydrothermal breccia with quartz and alunite, and jarosite developed within a zone of advanced argillic alteration. This breccia zone trends toward younger cover and has been traced intermittently over an approximate 1.5 km strike length. Hydrothermal breccias at La Soberana appear spatially associated with outcropping, altered hypabyssal dacitic porphyritic domes.

Reconnaissance mapping at the other alteration centres has also identified hydrothermal breccia outcrops coincident with areas of argillic to advanced argillic alteration.

Mapped hypabyssal dacite domes show spatial agreement with interpreted geophysical features, and prospective breccia zones appear to partially coincide with IP chargeability and low resistivity responses. Mapping is being expanded to cover the majority of the Jiguata tenure, with priority placed on areas exhibiting coincident alteration and geophysical anomalism.

Figure 5. Summary of the available data in the La Soberana area.

Analysis and QAQC Procedures

The pXRF results presented here were collected from plastic bags of sieved soil samples (-2mm) utilizing a HP InnovXSystem hand-held pXRF. The measurements were taken from the fine material at the bottom of each bag. The machine was regularly calibrated using a manufacturer supplied standard. The plots shown in this release represent the maximum value from each sample, with typically three readings collected per sample.

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the La Higuera IOCG Project, the Jiguata Project and the Chiricuto property. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the La Higuera IOCG Project, the Jiguata Project and the Chiricuto property.

About Tribeca Resources

Tribeca Resources’ flagship La Higuera IOCG Project has seen approximately 10,000m of drilling with mineralization defined over a 1.4 kilometer strike length. Most of the La Higuera Project is held as 100%-owned properties, but with the properties overlying the Gaby target held under a purchase option agreement. The Chiricuto and Jiguata projects are earlier stage porphyry copper-gold-molybdenum targets, held under purchase option agreements.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Forward Looking Information

This press release contains forward-looking statements and information that are based on the beliefs of management and reflect the Company's current expectations. When used in this press release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the negative of these words or such variations thereon or comparable terminology are intended to identify forward-looking statements and information. The forward-looking statements and information in this press release include statements regarding the relationship between alteration and rock characteristics identified in geological mapping and potential mineralization, the identification, prioritization and anticipated quality of exploration targets, the interpreted scale, extent and geological significance of alteration systems, the relationship between geophysical and geochemical survey results and potential mineralization, the size and timing of the proposed 2026 drill programs, the anticipated effectiveness of exploration methodologies, the integration of new and historic data to define drill targets, planned exploration activities beyond drilling, the anticipated completion of field activities and commencement of drilling (including the potential for weather-related delays), the ongoing engagement of GlobalOre and its impact on exploration outcomes, the use of proceeds from recently completed financings, the ability to secure and maintain necessary permits and approvals and the operations and future plans of the Company, including potential additional drilling and property acquisitions.

Such statements and information reflect the current view of the Company. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the ability of the Company to pay the purchase price and make any other payments required under the Jiguata Option Agreement, as well as to complete its option to acquire the Gaby target, risks associated with mineral exploration, including the risk that actual results of exploration will be different from those expected by management and that geological, geophysical and geochemical interpretations may not be confirmed by drilling, risks of delays or interruptions to exploration activities due to weather, logistical or access issues, risks related to obtaining and maintaining necessary permits and approvals, risks related to the availability and retention of key personnel, the ability to raise additional capital, fluctuations in commodity prices and market conditions, the reliability of historic or third-party data, the risk that any mineralization identified may be limited in size, continuity or economic significance, unanticipated costs or environmental liabilities, the risk that new laws or regulations could adversely affect the business and results of operations of the Company and anticipated work on the Company’s projects and other risks inherent in early‑stage mineral exploration projects.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

12 FEBRUARY, 2026 | VANCOUVER, BC

Tribeca Resources Provides Update on Field Activities in Chile and Engages Torrey Hills Capital

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) is pleased to report that fieldwork is progressing at the Jiguata porphyry copper exploration project (the “Jiguata Property”). This is running in parallel with preparations to commence drilling on the Chirsposo Sur target (the “Chirsposo Sur Target”) at the La Higuera project (the “La Higuera IOCG Project”).

Highlights:

Pre-drilling exploration activities are partially completed at the Jiguata Property, with data and results now pending
Preparations are being undertaken for Phase 3 drilling at the cornerstone La Higuera IOCG Project, following the signing of an access agreement over the Chirsposo Sur Target area
Torrey Hills Capital has been engaged to provide market awareness and investor relations services
Stock options granted to Global Ore Discovery Pty Ltd (“GlobalOre”), which is advising on exploration work at the Jiguata Property, or to an entity controlled by the principals of GlobalOre

Tribeca Resources CEO, Dr. Paul Gow commented:

“We are very pleased with the rapid start to the extensive field program at the exciting Jiguata Property. Information coming in from the geological mapping and preliminary satellite data interpretation confirms the presence of multiple large alteration systems, importantly with a variety of alteration assemblages commonly associated with high sulphidation epithermal environments.”

“In tandem we are moving ahead rapidly with preparations for drill testing of the Chirsposo Sur Target at the La Higuera IOCG Project. We intend to commence drilling in March, and are eager to see what the drill core yields in this compelling target that displays coincident anomalies in multiple geophysical datasets and sitting just below shallow gravel cover.”

Jiguata Porphyry Copper-Molybdenum Property

The Jiguata Property is a 10,000 hectare property located in the Tarapacá region in northern Chile. It is situated in the northern extension of the prolific Palaeocene and Eocene-Oligocene porphyry copper belts where it is overprinted by the younger Miocene Belt of magmatism that hosts recent large scale high sulphidation epithermal gold and porphyry copper-gold discoveries further to the south, including Vendaval Cu-Au Porphyry (First Quantum) and Salares Norte Au-Ag High Sulphidation Epithermal (Goldfields) (Figure 1).

Geological Mapping

Tribeca’s first field program since signing the Jiguata Property option agreement (on 28 October, 2025), commenced in December 2025 and significant progress continues to be made. Geological mapping to date has been focused on the four large alteration systems identified from satellite imagery and historic mapping (Figure 2). Mineral assemblages commonly associated with high sulphidation epithermal alteration are present, including broad zones of quartz-alunite alteration and localized vuggy silica zones. Lesser propylitic and phyllic alteration, which can be associated with deeper or more distal portions of porphyry-high sulphidation systems, has also been mapped within the most northwestern alteration system.

Preliminary mapping also indicates the presence of potential porphyry-related quartz-dominated veins, typically termed ‘B’ or ‘D’-type veins in the central project area. Multiple hydrothermal breccias, commonly with the matrix replaced by quartz-alunite have been mapped, as has at least one dacitic dome complex. Mapping is ongoing, with a focus on providing more detail within the zones considered as prospective based on the initial mapping.

In general, the mapping appears to indicate that faults of northeast and northwest orientations are predominant. This accords with historic mapping and with the apparent regional control on the alteration zones delineated in the Worldview3 data (Figure 3).

Figure 1. Location of the Jiguata Property within the Miocene Belt of northern Chile. *Deposit sizes and structural interpretation from Farrar, D. G., Tosdal, R. M., and Dilles, J. H., 2026, Lithospheric architecture of the Central Andes: Economic Geology, v. 118, no. 6, p. 1253–1280.

Sampling

Rock and soil sampling has been ongoing, with approximately 370 soil (Figure 2) and 50 rock samples collected to date. The soil sampling to date has been focused within the exposed central alteration zone on 200m x 200m or 200m x 100m staggered grids. Laboratory results are awaited, but analysis undertaken on the samples via pXRF provides a preliminary outline of elemental distribution, with data still being processed. The pXRF results are preliminary in nature and are used for screening purposes; laboratory results are pending and will be reported once received.

Worldview3 satellite data acquisition and processing

Approximately 100 square kms of Worldview 3 high resolution multispectral satellite imagery was tasked and acquired in December 2025 with cloud free data received in early January 2026. The resulting high-resolution imagery is being utilised by the mapping team for fact and interpretation maps. False colour images produced have highlighted four alteration centres aligning along regional NW and crosscutting NE structures. Initial interpretation indicates that these centres are displaying advanced argillic to intermediate argillic alteration colouring with coincident areas of strong iron oxides (gossanous), and potentially jarosite, which are consistent with the upper parts of a high sulphidation epithermal and the tops of porphyry deposits elsewhere in the Andes. These satellite‑derived alteration interpretations are preliminary in nature and require further field confirmation.

Figure 3. Approximate locations of the four alteration zones identified from satellite imagery and/or historic mapping, which have been the focus of mapping to date.

Ground Magnetic Surveying

The field collection component of a ground magnetic survey by Argali Geofísica Chile E.I.R.L was completed on 19 January 2026. Most of the project area was covered with 200m-spaced east-west lines. In general, the young flat lying volcanics are moderately magnetic, which produces significant near surface noise. Where the overlying unit has been eroded or is not present the magnetic intensity is significantly lower. Final products, including a 3D inversion, are awaited. The results will be integrated with the geological mapping and other data to aid interpretation.

La Higuera IOCG Project

The Chirsposo Sur Target is one of five discrete targets on the La Higuera IOCG Project. It comprises an interpreted strong hydrothermal magnetite alteration system under thin gravel cover in the southern project area. Inversion of the ground magnetic data indicates the system comprises a steeply-dipping north-south oriented magnetite alteration system of 1.2 km strike length. The interpreted body is also coincident with an intense (>30 mV/V) north-south IP chargeability trend that stretches over 2.4km, along with a broadly coincident 0.5-1.0 mGal residual gravity anomaly.

Two historic vertical diamond holes at the Chirsposo Sur Target, drilled approximately 200m to the west of the body intersected IOCG-style alteration with weak copper mineralisation (8m @ 0.23% Cu from 38m in hole CB-02), as reported in the NI 43-101 technical report filed by Tribeca Resources on October 24, 2022 (the “La Higuera Technical Report”), and demonstrate strong magnetite alteration with a coarse-grained pyrite-dominated sulphide assemblage. For additional information, including comments on the relevance and reliability of the foregoing estimates and the key assumptions, parameters and methods used to prepare such estimates, please refer to the La Higuera Technical Report.

The planned drill program comprises three diamond holes for approximately 1,050m, with two holes to test discrete magnetic highs within the target, and one hole to test a rare resistivity low anomaly in the IP data.

Figure 4. Location of the Chirsposo Sur Target in the La Higuera IOCG Project.

Engagement of Torrey Hills Capital

Further, Tribeca announces that it has engaged San Diego Torrey Hills Capital, Inc. ("Torrey Hills"), a Rancho Santa Fe, California based investor relations firm, to provide market awareness and investor relations services to the Company, subject to acceptance by the TSX Venture Exchange ("TSXV"). Cliff Mastricola is the principal of Torrey Hills and will be responsible for all activities related to the Company.

Torrey Hills is a leading investor and financial public relations firm specializing in small and microcap companies. Torrey Hills will increase awareness about Tribeca Resources through its established relationships with investment professionals, investment advisors, and money managers focused on the microcap market space. This will allow the Company to build and maintain an informed investor audience in both the U.S. and Canadian marketplaces.

Torrey Hills has been engaged at a rate of US$4,500 per month for an initial term of four months. After the initial term, the agreement will be automatically extended, subject to a 30-day termination notice by either party. The Company has also agreed to a one-time grant of 175,000 incentive stock options (the "Options") exercisable at a price of C$0.22 per share for a period of three years, of which 25% will vest at the three-month anniversary of the engagement, with an additional 25% vesting each three months thereafter. The Options will be subject to the terms of the Company's stock option plan and will vest in accordance with the provisions therein and the policies of the TSXV.

Torrey Hills currently has no direct or indirect interest in the securities of the Company, or any right or intent to acquire such an interest except pursuant to the exercise of the above referenced Options.

The appointment of Torrey Hills as an investor relations consultant of the Company remains subject to regulatory acceptance of applicable filings with the TSXV.

Issue of stock options to Global Ore Discovery

Stock options have been granted to Global Ore as incentive stock options for their role as consultants to the Company. A total of 270,000 stock options have been granted, exercisable for a period of three years at a price per share that is the higher of the closing market price of the Company’s common shares on February 11, 2026 and the closing price on the date of this news release. GlobalOre may elect to have the stock options issued to an entity controlled by its principals. The stock options will be subject to the terms of the Company's stock option plan and will vest in accordance with the provisions therein and the policies of the TSXV. For further information regarding Global Ore’s appointment as consultants to Tribeca Resources, please refer to the Company’s news release dated December 15, 2025.

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the La Higuera IOCG Project, the Jiguata Property and the Chiricuto property. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the La Higuera IOCG Project, the Jiguata Property and the Chiricuto property.

About Tribeca Resources

Tribeca Resources’ flagship La Higuera IOCG Project has seen approximately 10,000m of drilling with mineralization defined over a 1.4 kilometer strike length. Most of the La Higuera IOCG Project is held as 100%-owned properties, but with the properties overlying the Gaby target held under a purchase option agreement. The Chiricuto and Jiguata projects are earlier stage porphyry copper-gold-molybdenum targets, held under purchase option agreements.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Neither the TSXV nor its Regulation Service Provider (as that term is defined in the policies of the TSXV) accepts responsibility for the adequacy or accuracy of this press release.This press release does not constitute or form a part of any offer or solicitation to purchase or subscribe for securities in the United States. The securities referred to herein have not been and will not be registered under the Securities Act of 1933, as amended (the “Securities Act”), or with any securities regulatory authority of any state or other jurisdiction in the United States, and may not be offered or sold, directly or indirectly, within the United States or to, or for the account or benefit of, U.S. persons, as such term is defined in Regulation S under the Securities Act (“Regulation S”), except pursuant to an exemption from or in a transaction not subject to the registration requirements of the Securities Act.

Forward Looking Information

This press release contains forward-looking statements and information that are based on the beliefs of management and reflect the Company's current expectations. When used in this press release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the negative of these words or such variations thereon or comparable terminology are intended to identify forward-looking statements and information. The forward-looking statements and information in this press release include statements regarding the relationship between alteration identified in geological mapping and potential mineralization, the interpretations of preliminary exploration data, the relationship between geophysical and geochemical survey results and potential mineralization, the size and timing of the proposed 2026 drill programs, the integration of new and historic data to define drill targets, the anticipated completion of field activities and commencement of drilling (including the potential for weather-related delays), the ongoing engagement of GlobalOre and its impact on exploration outcomes, the use of proceeds from recently completed financings, the ability to secure and maintain necessary permits and approvals and the operations and future plans of the Company, including potential additional drilling and property acquisitions.

Company to pay the purchase price and make any other payments required under the Jiguata Option Agreement, as well as to complete its option to acquire the Gaby target, risks associated with mineral exploration, including the risk that actual results of exploration will be different from those expected by management, risks related to the uncertainty of preliminary exploration data, risks of delays or interruptions to exploration activities due to weather, logistical or access issues, risks related to obtaining and maintaining necessary permits and approvals, risks related to the availability and retention of key personnel, the ability to raise additional capital, fluctuations in commodity prices and market conditions, the reliability of historic or third-party data, unanticipated costs or environmental liabilities and the risk that new laws or regulations could adversely affect the business and results of operations of the Company and anticipated work on the Company’s projects.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

JANUARY 12, 2026 | VANCOUVER, BC

Tribeca Resources Announces Results of AGM

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”), is pleased to announce the voting results from its Annual General Meeting of shareholders (the "Meeting") held on January 9, 2026. Shareholders holding 47,059,641 shares or 48.30% of the outstanding shares of the Company were represented in person or by proxy at the Meeting.

The shareholders re-elected Paul Gow, Thomas Schmidt, Nick DeMare, Luis Tondo and Derrick Weyrauch as directors of the Company.

The shareholders also voted in favour of all matters brought before the Meeting including the re-appointment of D&H Group LLP as auditor of the Company for the ensuing year and the continuation of the Company’s rolling 10% equity incentive plan (the "Incentive Plan"). Pursuant to the Incentive Plan, the Company is entitled to grant stock options, restricted share units, performance share units or deferred share units to eligible persons under the Incentive Plan, with the number of common shares issuable thereunder, together with the number of common shares issuable under any other security-based compensation arrangements of the Company, not to exceed 10% of the total number of common shares outstanding from time to time.

Following the Meeting, the directors appointed Paul Gow as Chief Executive Officer of the Company, Thomas Schmidt as President and Nick DeMare as Chief Financial Officer and Corporate Secretary. The Board also appointed Luis Tondo, Derrick Weyrauch and Thomas Schmidt to the audit committee.

About Tribeca Resources

Tribeca Resources is a copper exploration company focused on discovering and developing assets in the coastal IOCG belt of northern Chile. The Company’s management team, whose members are significant shareholders of the Company, has world-leading expertise and a discovery history with iron oxide copper-gold deposits in the world’s great IOCG Belts of the Carajás district in Brazil and the Gawler and Cloncurry provinces of Australia.

Tribeca Resources’ objective is to provide the mineral resources for the next generation of copper mines in Chile. It is focused on building a portfolio of projects, with emphasis on mid to advanced-stage copper exploration and resource development projects. To this end, mineral targets are regularly assessed in pursuit of acquisition, strategic exploration and significant discovery.

Tribeca Resources’ portfolio comprises three early- to advanced-stage exploration projects in northern Chile. The flagship La Higuera IOCG Project has seen approximately 10,000m of drilling with mineralization defined over a 1.4 kilometer strike length. The Chiricuto and Jiguata projects are earlier stage porphyry copper-gold-molybdenum targets, held under purchase option agreements

For more information, please contact:

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

15 DECEMBER, 2025 | VANCOUVER, BC

Tribeca Resources Provides Update on Activities Across its Expanded Chilean Copper Exploration Portfolio

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) is pleased to report that fieldwork has commenced on the Company’s Jiguata property in the Tarapacá region of northern Chile (the “Jiguata Property”). This follows the recent signing of a 5-year purchase option agreement (the “Jiguata Option Agreement”) and successful completion of a C$6.5 million financing as more fully described in the Company’s news releases dated October 29, 2025 and October 23, 2025, respectively.

Highlights:

Field crews mobilized to the Jiguata porphyry copper-molybdenum property to commence mapping and sampling
Global Ore Discovery, a highly experienced geological consultancy, engaged to deliver expert guidance on exploration activities and drill targeting at the Jiguata Property. Known for innovative, pragmatic, and leading-edge exploration solutions and technologies to optimise exploration success
Historic Jiguata induced polarization (“IP”) geophysical data has been reprocessed and ground magnetic data acquisition planned to commence in second half of December
Phase 3 drill program planned at La Higuera IOCG Project (as defined below), commencing with an initial three holes for approximately 1,000 metres at the Chirsposo Sur Target (as defined below) in Q1 2026, prior to further drilling at the Gaby target

Tribeca Resources CEO, Dr. Paul Gow commented:

“Following signing of the definitive purchase option agreement in late October, Tribeca Resources, has now mobilised field teams to the Jiguata porphyry copper-molybdenum property in northern Chile. An intensive phase of surface data acquisition over the coming months, in order to build a comprehensive geological, geochemical and geophysical picture of this very large alteration system, is now underway. We are optimistic that some compelling drill targets will emerge from this work, which we look forward to drill testing later in 2026. “

“At our cornerstone La Higuera IOCG Project in the coastal IOCG belt, we are planning to initially drill the Chirsposo Sur Target in Q1 2026. This target is entirely covered by shallow gravels, has not previously been drilled by Tribeca Resources, and has a geophysical footprint with strong similarities to our Gaby IOCG discovery, four kilometers to the north. The objective at the Chirsposo Sur Target is to intersect similar breccia-hosted copper-gold mineralization to that encountered over significant widths at Gaby.”

Jiguata Porphyry Copper-Molybdenum Property

The Jiguata Property is a 10,000 hectare property located in the Tarapacá region in northern Chile. It is situated in the northern extension of the prolific Eocene-Oligocene porphyry copper belt of northern Chile, approximately 120km north of the Collahuasi and Quebrada Blanca copper-molybdenum deposits (Figure 1). Access to the area is via a maintained road that passes directly through the property.

Pre-existing geological mapping, soil and rock geochemistry, IP surveying and limited historic drill data outline several drill targets, with additional earlier stage targets elsewhere on the property remaining to be detailed with the additional field work currently underway. Further information about the property is available in Tribeca Resources’ news release dated June 19, 2025.

Field teams have commenced geological mapping and systematic soil and mapping-based selective rock chip sampling programs. The sampling is proposed to provide a comprehensive multielement geochemistry and hyperspectral database to aid in definition of vectors to copper mineralization within the extensive zones of intense epithermal alteration present in the area. In addition, acquisition and processing of detailed satellite hyperspectral imagery is underway to assist in detailing mineralogical zonation within the large alteration system.

Global Ore Discovery Pty Ltd (“GO”), a highly experienced geological consultancy, has been engaged to deliver expert guidance on exploration activities and drill targeting at the Jiguata Property. The GO team has experience working with companies exploring for porphyry and epithermal deposits, including Tier 1 mining companies and successful junior mining issuers throughout the world.

GO and its principals have extensive experience in many of the world’s premier porphyry and epithermal belts in the Americas, Australasia, and Central Asia where GO has a track record of directly contributing to a number of new discoveries and expanding deposit knowledge to guide focused exploration. Within the Chilean-Argentine porphyry and epithermal belts, GO has detailed knowledge of the Maricunga, Vicuña, Domeyko, and Alumbrera-Agua Rica districts.

Ground magnetic surveying is currently scheduled for commencement in the second half of December. The program will cover most of the 10,000-hectare property area at approximately 200m line spacing.

The historic IP geophysical database has been reprocessed. The historic surveying in 2013 comprised 1km-spaced lines of 8km length (150m pole-dipole) to cover approximately 40 square kilometres. A 3D inversion of this data has been completed and has more confidently constrained the location of the significant IP chargeability anomalies in the area, as well as providing a coherent model of the IP resistivity distribution. This 3D model will be integrated with the mapping, geochemistry and magnetic data as field acquisition progresses.

The data acquisition from the field activities outlined above is anticipated to continue through the period December 2025 to March 2026, with the time required dependent on the duration of any interruptions required due to adverse weather associated with the ‘Bolivian Winter’. Following this ground acquisition, data will be integrated and drill targets defined. Depending on progress of these pre-drilling field activities, drill testing of targets is envisaged to be undertaken in Q2 or Q3 of 2026.

Figure 1. Location of the Jiguata Property within the northern extension of the Eocene-Oligocene Metallogenic Belt of northern Chile, which hosts several of the world’s largest copper deposits.

La Higuera IOCG Project

The La Higuera project is located towards the southern end of the Chilean coastal iron-oxide copper-gold (“IOCG”) belt in the Coquimbo Region of Chile, and comprises 41 mining and five exploration licences for 4,547 hectares (the “La Higuera IOCG Project”). It hosts multiple copper-gold targets, two of which have to date been drilled by Tribeca Resources. At the Gaby target, Tribeca Resources has drilled 17 holes, with mineralization identified over a 1.5km strike length, with a best intersection of 268m @ 0.66% Cu, 0.14 g/t Au, 330ppm Co and 24.7% Fe from 52m in drill hole GBY001 (see Tribeca Resources’ news release dated January 30, 2023). Drilling has also been completed at the Chirsposo target, with a best result from two drill holes of 167m @ 0.21% Cu, 0.06 g/t Au from 56m in hole CHS002 (see Tribeca Resources’ news release dated May 17, 2023) (the “Chirsposo Sur Target”).

Drilling has been planned at the Chirsposo Sur Target, which is an interpreted strong hydrothermal magnetite alteration system under thin gravel cover in the southern project area. Inversion of the ground magnetic data indicates the system comprises a steeply-dipping north-south oriented magnetite alteration system of 1.2 km strike length. It is interpreted as hosted within a strand of the Atacama Fault System, which is intensely-developed in this area and cross-cut by several northwest-trending faults. The interpreted body is also coincident with an intense (>30 mV/V) north-south IP chargeability trend that stretches over 2.4km, with the main Chirsposo Sur Target at its northern end where Tribeca Resources drilled significant mineralization (see above). The program is proposed to comprise three holes over the 1.2 km strike length of the most intense magnetic body for a total of approximately 1000m of drilling. Plans for further drilling at the Gaby discovery thereafter are being drawn up.

Two historic vertical diamond holes at the Chirsposo Sur Target, drilled approximately 200m to the west of the body intersected IOCG-style alteration with weak copper mineralisation (8m @ 0.23% Cu from 38m in hole CB-02), and demonstrate strong magnetite alteration with a coarse-grained pyrite-dominated sulphide assemblage similar to the late-stage Association 2 mineralization at the Gaby discovery 4 km to the north (see Tribeca Resources’ news release dated February 6, 2024).

Figure 2. Location of Tribeca Resources’ five key targets at the La Higuera IOCG Project shown with the ground magnetic data. The Chirsposo Sur Target is located approximately 4km south of the Gaby discovery, and is interpreted on the basis of geophysical data to represent a similar Atacama Fault-hosted magnetite-dominated breccia system

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the La Higuera IOCG Project, the Jiguata Property and the Chiricuto property. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the La Higuera IOCG Project, the Jiguata Property and the Chiricuto property.

About Tribeca Resources

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Forward Looking Information

This press release contains forward-looking statements and information that are based on the beliefs of management and reflect the Company's current expectations. When used in this press release, the words "estimate", "project", "belief", "anticipate", "intend", "expect", "plan", "predict", "may" or "should" and the negative of these words or such variations thereon or comparable terminology are intended to identify forward-looking statements and information. The forward-looking statements and information in this press release include statements regarding the relationship between geophysical and geochemical survey results and potential mineralization, the size and timing of the proposed 2026 drill programs, the integration of new and historic data to define drill targets, the anticipated commencement and completion of ground magnetic surveying and other field activities (including the potential for weather-related delays), the ongoing engagement of GO and its impact on exploration outcomes, the use of proceeds from recently completed financings, the ability to secure and maintain necessary permits and approvals and the operations and future plans of the Company, including potential additional drilling and property acquisitions.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

25 NOVEMBER, 2025 | VANCOUVER, BC

Tribeca Resources Grants Stock Options and DSUs

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources”, the “Company”) announces the granting of stock options to directors and officers of the Company for the purchase of up to 1,825,000 common shares of the Company, at a price of $0.21 per share, for a period of 5 years. The options shall vest annually in equal thirds beginning on the first anniversary of the date of grant. In addition, pursuant to the Long-term Incentive Plan adopted by the Company in October 2022, the Company granted 142,858 deferred share units (“DSU”) to its independent directors.

About Tribeca Resources

Tribeca Resources is a copper exploration company focused on discovering and developing assets in the Coastal IOCG Belt of northern Chile. The Company’s management team, whose members are significant shareholders of the Company, has world-leading expertise and a discovery history with iron oxide copper-gold deposits in the world’s great IOCG Belts of the Carajás district in Brazil and the Gawler and Cloncurry provinces of Australia.

Tribeca Resources’ flagship property is the La Higuera Property that comprises 4,147 hectares of granted mining and exploration licences and is located towards the southern end of the Chilean Coastal IOCG Belt in the Coquimbo Region of northern Chile. Further information about the project can be found in the NI 43-101 Technical Report lodged by Tribeca Resources on SEDAR on 24 October 2022. The company holds options to acquire two further properties; the Chiricuto project located in the Atacama region and the Jiguata porphyry copper property located in the Tarapacá region, both in northern Chile.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Forward Looking Information

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

29 OCTOBER, 2025 | VANCOUVER, BC

Tribeca Resources Signs Definitive Option Agreement to Acquire the Jiguata Porphyry Copper Property in Northern Chile

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources” or the “Company”) is pleased to announce that, further to the Company's news release dated June 19, 2025, it has entered into a definitive option agreement dated October 28, 2025 (“Option Agreement”) with private arm’s length vendors (the “Project Vendors”) to acquire a 100% interest in the 10,000 hectare Jiguata Porphyry Copper property (the “Jiguata Property”) over a period of 5 years (the “Purchase Option”).

The Jiguata Property, located in northern Chile, 120km north of the major mining company controlled Collahuasi and Quebrada Blanca mines (Figure 1), will be progressed in parallel with the Company’s two existing projects: La Higuera (the “La Higuera Property”) and Chiricuto (the “Chiricuto Property”), both located in the Chilean Coastal IOCG Belt.

Highlights:

Large epithermal and interpreted porphyry alteration system in the northern extension of the prolific Chilean porphyry-bearing Eocene-Oligocene Belt, with partial overprint and cover by younger Miocene age rocks
Drive-up access via paved Collahuasi road, nearby accommodation and associated infrastructure
Soil sampling, historic drilling, geological mapping and geophysics highlight a large 5km x 3km exploration target zone, with two existing discrete near drill-ready targets
Under the Option Agreement, during the first two years, Tribeca will make staged cash payments totalling US$ 100,000 and undertake a minimum of 3,000 meters of drilling
Pre-drilling activities at the Jiguata Property will be undertaken in parallel with further drilling at the Company’s flagship La Higuera Property

Tribeca Resources CEO, Dr. Paul Gow commented:

“We are very pleased to have now signed the definitive Option Agreement for this exciting porphyry copper exploration opportunity at Jiguata. Following the successful financing last week, preparations now are underway to commence fieldwork at Jiguata in the coming weeks.”

“The next twelve months will be a period of high activity for Tribeca, with drilling planned at our cornerstone La Higuera Property as well as at the Jiguata Property. Our now expanded portfolio of three high potential Chilean copper projects positions Tribeca Resources to capitalise on growing interest in quality copper exploration.”

The Jiguata Property option agreement

Tribeca has entered into a 5-year Option Agreement, giving it the right, but not the obligation, to acquire a 100% interest in the Jiguata Property. Tribeca has made a payment to the vendors of US$25,000 in connection with signing of the definitive Option Agreement, and will reimburse the Project Vendors approximately US$44,000 for the 2025 licence fee already paid by them. Under the terms of the Option Agreement, the total consideration and required work commitments, as applicable, will be as follows on a yearly basis:

1) If the Purchase Option is maintained 2) If the Purchase Option is exercised

Upon exercise of the Purchase Option (which remains at the sole discretion of the Company), the Project Vendors will retain a 2.0% net smelter return royalty (the “NSR Royalty”) over the Jiguata Property. Tribeca will have a right to repurchase 100% of the NSR royalty for US$20 million.

For more information regarding the terms of the Option Agreement, please see the Company’s press release dated June 19, 2025.

The Jiguata Property (see Figure 1 below) comprises 34 exploration concessions covering 10,000 hectares and is located in the northern extension of the Eocene-Oligocene metallogenic belt of northern Chile (Figure 1), where it has been overprinted by the Miocene magmatic belt. The prolific Eocene-Oligocene Belt hosts the giant Collahuasi, Chuquicamata and Escondida deposits.

The project area encompasses a large advanced argillic alteration zone (25 square km) hosted within a volcanic tuffaceous unit under a thin blanketing cover of fresh unaltered Miocene dacitic volcanic rocks dated at approximately 9-5 Ma. The alteration zone has been exposed via erosional windows in the overlying Miocene volcanic rocks.

Tribeca Resources plans to extend the historic mapping and surface sampling and undertake additional geophysics prior to proceeding with drilling at the Jiguata Property. Tribeca Resources will be the operator of the project.

Figure 1. Location of the Jiguata Property (10,000 hectares) in the Eocene-Oligocene metallogenic belt of northern Chile, where it is overprinted by the younger Miocene belt.

Tribeca confirms that there are no finder’s fees payable in connection with the entering into of the Option Agreement. The Company’s entry into the Option Agreement and any future acquisition within the Jiguata Property remains subject to the approval of the TSX Venture Exchange (the “TSXV”).

Finder’s Fee in Connection with the Company’s Non-Brokered Private Placement Offering

In connection with the closing of the Company’s non-brokered private placement offering of units further described in its news release dated October 23, 2025 (the “Offering”), the Company previously announced that it had paid an aggregate of approximately $248,694 and issued finder’s warrants to acquire up to an aggregate of 1,184,257 common shares of the Company (the “Finder’s Warrants”) as finder’s fees to certain eligible finders in consideration for introducing certain purchasers to the Company. The Company wishes to clarify that it has also paid an additional $3,717 and issued an additional 17,700 Finder’s Warrants as finder’s fees to certain eligible finders. As a result, the Company paid an aggregate of approximately $252,411 and issued an aggregate of 1,201,957 Finder’s Warrants to eligible finders in connection with the Offering.

Qualified Person

All scientific and technical information in this press release has been prepared by, or approved by, Dr. Paul Gow, who is the CEO of Tribeca Resources. He is a Member of the Australian Institute of Geoscientists (MAIG), a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and a qualified person for the purposes of NI 43-101. Dr. Gow has not verified any of the information regarding any of the properties or projects referred to herein other than the La Higuera Property, the Chiricuto Property and the Jiguata Property. Mineralization on any other properties referred to herein is not necessarily indicative of mineralization on the La Higuera, Chiricuto or Jiguata Properties.

About Tribeca Resources

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Forward Looking Information

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

23 OCTOBER, 2025 | VANCOUVER, BC

Tribeca Resources Closes Upsized C$6.5 Million Non-Brokered Private Placement Offering

Tribeca Resources Corporation (TSXV: TRBC) (OTCQB: TRRCF) (“Tribeca Resources” or the “Company”) is pleased to announce that it has closed its previously announced non-brokered private placement offering of units of the Company (“Units”), pursuant to which the Company issued 30,903,183 Units at a price of $0.21 per Unit for aggregate gross proceeds of $6,489,668.43 (the “Offering”).

Tribeca Resources CEO, Dr. Paul Gow commented:

"The overwhelming and global interest, which led to a significant oversubscription of this Offering, is a strong validation of our growth strategy and the exceptional potential of our growing portfolio of Chilean copper exploration assets. As well as strong support from our current shareholder base, we are extremely pleased to welcome a diverse, international group of new shareholders who share our vision for the Company.

“Closing this financing with such momentum puts us in an excellent position to pursue aggressive exploration and drilling programs with the objective of delivering for all stakeholders.”

Each Unit comprises one common share of the Company (each, a “Share”) and one-half of one common share purchase warrant (each whole warrant, a “Warrant”). Each Warrant is exercisable by the holder thereof to acquire one additional Share (each, a “Warrant Share”, and together with the Units, Shares and Warrants, the “Securities") at an exercise price of $0.30 if exercised within the first 12 months following the Closing Date and $0.40 if exercised within the subsequent 12-month period, for a total exercise period of 24 months from the Closing Date; provided that: (i) the Warrants shall not be exercisable within the initial 60-day period following the Closing Date, and (ii) the Company will have the right to accelerate the expiry of the Warrants in the event the Shares trade on the TSX Venture Exchange (the “TSXV”) (or any such other stock exchange in Canada as the Shares may trade at the applicable time) at a volume weighted average trading price ("VWAP") of $0.50 or more per Share for a ten (10) consecutive trading day period.

The Units issued under the Offering were offered to purchasers pursuant to the listed issuer financing exemption (LIFE) under Part 5A of National Instrument 45-106 – Prospectus Exemptions and in reliance on Coordinated Blanket Order 45-935 – Exemptions from Certain Conditions of the Listed Issuer Financing Exemption and therefore the Securities issued under the Offering are not subject to a hold period pursuant to applicable Canadian securities laws. There is an amended and restated offering document (the “Offering Document”) related to this Offering that can be accessed under the Company’s profile at www.sedarplus.ca and on the Company’s website at www.tribecaresources.com.

The proceeds from the Offering will be primarily used to advance the Company’s La Higuera IOCG project (the “La Higuera Project”), with additional funds allocated to the planned initial exploration and drilling activities at the exciting new Jiguata Project. The Jiguata Purchase Option (as defined below) remains under review by the TSXV and there is no certainty that the Company will obtain the necessary regulatory approvals, including approval of the TSXV, in respect of the Jiguata Purchase Option.

Tribeca Resources intends to use the net proceeds from the Offering as follows:

Description of intended use of available funds	Estimated allocation of funds
Expenditures relating to exploration activities at the La Higuera Project⁽¹⁾	$1,868,000
Exploration activities at the Jiguata project (the “Jiguata Project”)⁽²⁾	$1,573,000
Reserved for results-dependent follow-up drilling at the La Higuera Project / the Jiguata Project⁽²⁾	$1,331,000
Business development	$181,000
General and administrative	$894,000
Unallocated working capital	$382,000
TOTAL:	$6,229,000

(1) The Company does not currently intend to use the available funds to complete its option to acquire the Gaby target, as more fully described in the Offering Document (the “Gaby Acquisition”). Any decision to pursue the Gaby Acquisition is at the Company’s sole discretion and will require the Company to make a final one-time payment of US$1,550,000.00 on September 15, 2026 (the “Gaby Option Payment Date”) subject to (i) any further negotiation between the Company and the vendor party participating in the Gaby Acquisition (the “Vendor”) for the purpose of extending the Gaby Option Payment Date; and (ii) the Company obtaining additional financing (in addition to the Offering) to complete the Gaby Acquisition. The Vendor is not an insider, associate or affiliate of the Company.
(2) The Company only intends to use the part of the available funds as detailed above for exploration activities at the Jiguata Project if it obtains the necessary regulatory approvals, including approval of the TSXV, to enter into the option to purchase 100% of the Jiguata Project (the “Jiguata Purchase Option”), as more particularly set forth in the Offering Document. In the event that the Company does not obtain all necessary regulatory approvals or approval from the TSXV, the Company will use certain proceeds currently contemplated for the Jiguata Project for other purposes as set out herein and in the Offering Document. The Jiguata Purchase Option remains under review by the TSXV and there is no certainty that the Company will obtain the necessary regulatory approvals, including approval of the TSXV, in respect of the Jiguata Purchase Option. The Company confirms that it has obtained and retained all required consents from purchasers in the Offering in respect of the Jiguata Purchase Option.

In connection with the Offering, the Company paid an aggregate of approximately $248,694 and issued finder’s warrants to acquire up to an aggregate of 1,184,257 Shares (the “Finder’s Warrants”) as finder's fees to certain eligible finders in consideration for introducing certain purchasers to the Company. Each Finder’s Warrant entitles the holder to acquire one Share at a price of $0.21 per Share for a period of twenty-four months. The Finder’s Warrants, and Shares issuable upon exercise of the Finder’s Warrants, are subject to a statutory four-month hold period pursuant to applicable Canadian securities laws.

The Offering remains subject to the final approval of the TSXV.

Related Party Disclosure

Certain insiders of the Company subscribed for approximately $936,046 worth of Units in the Offering. This participation by insiders constitutes a “related party transaction” within the meaning of Multilateral Instrument 61-101 – Protection of Minority Shareholders in Special Transactions (“MI 61-101”). The Company has relied on applicable exemptions from the formal valuation and minority approval requirements in Sections 5.5(a), 5.5(b) and 5.7(1)(a), respectively, of MI 61-101. No new insiders were created, nor has there been any change of control, as a result of the Offering. The Company did not file a material change report with respect to the insiders’ participation more than 21 days before the expected closing of the Offering, as the details and amounts of the insider participation were not finalized until closer to the closing and the Company wished to close the Offering as soon as practicable for sound business reasons.

Wildeboer Dellelce LLP acted as legal counsel to Tribeca in connection with the Offering.

About Tribeca Resources

Tribeca Resources is a copper exploration company focused on discovering and developing copper assets in northern Chile. The Company’s management team, whose members are significant shareholders of the Company, has world-leading copper expertise including a discovery history with iron oxide copper-gold deposits in the world’s great IOCG Belts of the Carajás district in Brazil and the Gawler and Cloncurry provinces of Australia, and porphyry-copper project and business development experience in Papua New Guinea, the Philippines, Peru, Argentina and Chile.

Tribeca Resources’ flagship property is the La Higuera Project that comprises 4,147 hectares of granted mining and exploration licences and is located towards the southern end of the Chilean Coastal IOCG Belt in the Coquimbo Region of northern Chile. Further information about the project can be found in the NI 43-101 Technical Report lodged by Tribeca Resources on SEDAR+ on October 24, 2022.

On behalf of Tribeca Resources Corporation

Paul Gow		Thomas Schmidt
CEO and Director		President and Director
admin@tribecaresources.com		admin@tribecaresources.com
+1 604 685 9316		+1 604 685 9316

Cautionary Note

Neither the TSXV nor its Regulation Service Provider (as that term is defined in the policies of the TSXV) accepts responsibility for the adequacy or accuracy of this press release.

This press release does not constitute or form a part of any offer or solicitation to purchase or subscribe for securities in the United States. The Securities issued pursuant to the Offering have not been and will not be registered under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”), or with any securities regulatory authority of any state or other jurisdiction in the United States, and may not be offered or sold, directly or indirectly, within the United States or to, or for the account or benefit of, U.S. persons, as such term is defined in Regulation S under the Securities Act (“Regulation S”), except pursuant to an exemption from or in a transaction not subject to the registration requirements of the Securities Act.

Forward Looking Information

There are several important factors that could cause the Company’s actual results to differ materially from those indicated or implied by forward-looking statements and information. Such factors include, among others: reliance on key management; changes in the credit or security markets; results of operation activities; unanticipated costs and expenses; fluctuations in commodity prices; and general market and industry conditions. The Company cautions that the foregoing list of material factors is not exhaustive. When relying on the Company's forward-looking statements and information to make decisions, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. Factors that could cause actual results to differ materially from those anticipated in these forward-looking statements are described under the caption “Cautionary Statement Regarding Forward-Looking Information” in the Company’s Offering Document dated as of October 15, 2025, which is available for view on SEDAR+ at www.sedarplus.com.

The Company has assumed that the material factors referred to in the previous paragraph will not cause such forward-looking statements and information to differ materially from actual results or events. The forward-looking information contained in this press release represents the expectations of the Company as of the date of this press release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

Tribeca Resources Corporation is a Chile focussed copper explorer developing and growing a portfolio of exploration projects in the Chilean IOCG Belt

Tribeca Resources Corporation
1305 - 1090 West Georgia Street
Vancouver, BC V6E 3V7 Canada

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