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

(TheNewswire)

29 OCTOBER, 2025 – TheNewswire - VANCOUVER, BC - Tribeca ResourcesCorporation (TSXV: TRBC) (OTCQB: TRRCF)(“ TribecaResources ” or the “ Company ”) ispleased to announce that, further to the Company's news releasedated June 19, 2025, it has entered into a definitive option agreementdated October 28, 2025 (“ Option Agreement ”) with private arm’slength vendors (the “ProjectVendors” ) to acquire a 100% interest in the10,000 hectare Jiguata Porphyry Copper property (the “ Jiguata Property ”) over aperiod of 5 years (the “ Purchase Option ”).

The Jiguata Property, located in northern Chile, 120kmnorth of the major mining company controlled Collahuasi and QuebradaBlanca mines (Figure 1), will be progressed in parallel with theCompany’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 alterationsystem in the northern extension of the prolific Chileanporphyry-bearing Eocene-Oligocene Belt, with partial overprint andcover by younger Miocene age rocks

• Drive-up access via paved Collahuasi road, nearbyaccommodation and associated infrastructure

• Soil sampling, historic drilling, geological mappingand 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 andundertake a minimum of 3,000 meters of drilling

• Pre-drilling activities at the Jiguata Property will beundertaken in parallel with further drilling at the Company’sflagship La Higuera Property

Tribeca Resources CEO, Dr. Paul Gowcommented:

“We are very pleased to have now signed thedefinitive Option Agreement for this exciting porphyry copperexploration opportunity at Jiguata. Following the successful financinglast week, preparations now are underway to commence fieldwork atJiguata in the coming weeks.”

“The next twelve months will be a period of highactivity for Tribeca, with drilling planned at our cornerstone LaHiguera Property as well as at the Jiguata Property. Our now expandedportfolio of three high potential Chilean copper projects positionsTribeca Resources to capitalise on growing interest in quality copperexploration.”

The Jiguata Property optionagreement

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 thevendors of US$25,000 in connection with signing of the definitiveOption Agreement, and will reimburse the Project Vendors approximatelyUS$44,000 for the 2025 licence fee already paid by them.  Under theterms of the Option Agreement, the total consideration and requiredwork commitments, as applicable, will be as follows on a yearlybasis:

1 If thePurchase Option is maintained

2 If thePurchase Option is exercised

Upon exercise of the Purchase Option (which remains atthe sole discretion of the Company), the Project Vendors will retain a2.0% net smelter return royalty (the “ NSR Royalty ”) overthe Jiguata Property. Tribeca will have a right to repurchase 100% ofthe NSR royalty for US$20 million.

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

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

The project area encompasses a large advanced argillicalteration zone (25 square km) hosted within a volcanic tuffaceousunit under a thin blanketing cover of fresh unaltered Miocene daciticvolcanic rocks dated at approximately 9-5 Ma. The alteration zone hasbeen exposed via erosional windows in the overlying Miocene volcanicrocks.

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

Click Image To View Full Size

Figure 1. Location of the Jiguata Property (10,000hectares) 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 feespayable in connection with the entering into of the Option Agreement.The Company’s entry into the Option Agreement and any futureacquisition within the Jiguata Property remains subject to theapproval of the TSX Venture Exchange (the “ TSXV ”).

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

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

Qualified Person

All scientific and technical information in this pressrelease has been prepared by, or approved by, Dr. Paul Gow, who is theCEO of Tribeca Resources. He is a Member of the Australian Instituteof Geoscientists (MAIG), a Member of the Australasian Institute ofMining and Metallurgy (MAusIMM) and a qualified person for thepurposes of NI 43-101. Dr. Gow has not verified any of the informationregarding any of the properties or projects referred to herein otherthan the La Higuera Property, the Chiricuto Property and the JiguataProperty. Mineralization on any other properties referred to herein isnot necessarily indicative of mineralization on the La Higuera, Chiricuto or Jiguata Properties.

About Tribeca Resources

Tribeca Resources is acopper exploration company focused on discovering and developingassets in the Coastal IOCG Belt of northern Chile. The Company’smanagement team, whose members are significant shareholders of theCompany, has world-leading expertise and a discovery history with ironoxide copper-gold deposits in the world’s great IOCG Belts of theCaraj ás district inBrazil and the Gawler and Cloncurry provinces of Australia.

Tribeca Resources’ objective is to provide themineral resources for the next generation of copper mines in Chile. Itis focused on building a portfolio of projects, with emphasis on midto advanced-stage copper exploration and resource developmentprojects. To this end, mineral targets are regularly assessed inpursuit of acquisition, strategic exploration and significantdiscovery.

Tribeca Resources’ flagship property is the LaHiguera Property that comprises 4,147 hectares of granted mining andexploration licences and is located towards the southern end of theChilean Coastal IOCG Belt in the Coquimbo Region of northern Chile.Further information about the project can be found in the NI 43-101Technical Report lodged by Tribeca Resources on SEDAR on 24 October2022.

On behalf of Tribeca ResourcesCorporation

Cautionary Note

Neither the TSX Venture Exchange Inc. nor itsRegulation Service Provider (as that term is defined in the policiesof the TSX Venture Exchange Inc.) accepts responsibility for theadequacy or accuracy of this press release.

This press release does not constitute or form a partof any offer or solicitation to purchase or subscribe for securitiesin the United States. The securities referred to herein have not beenand will not be registered under the Securities Act of 1933, asamended (the “Securities Act”), or with any securities regulatoryauthority of any state or other jurisdiction in the United States, andmay not be offered or sold, directly or indirectly, within the UnitedStates or to, or for the account or benefit of, U.S. persons, as suchterm is defined in Regulation S under the Securities Act(“Regulation S”), except pursuant to an exemption from or in atransaction not subject to the registration requirements of theSecurities Act.

Forward Looking Information

This press release contains forward-looking statementsand information that are based on the beliefs of management andreflect the Company's current expectations. When used in thispress release, the words "estimate", "project","belief", "anticipate", "intend","expect", "plan", "predict","may" or "should" and the negative of these wordsor such variations thereon or comparable terminology are intended toidentify forward-looking statements and information. Theforward-looking statements and information contained in this pressrelease include statements regarding the Option Agreement in respectof the Jiguata Property, the ability to obtainTSXV approval in respect of the Option Agreement and the Offering, the ability of the Company to develop and define suitable drilltargets at the Jiguata and La Higuera Properties, the relationshipbetween geophysical survey results and potential mineralization, theability of the Company to raise appropriate funding to complete thework program at the Jiguata and La Higuera Properties and other futureplans and objectives of the Company, including other explorationprojects.

Such statements and information reflect the currentview of the Company. By their nature, forward-looking statementsinvolve known and unknown risks, uncertainties and other factors,which may cause our actual results, performance or achievements, orother future events, to be materially different from any futureresults, performance or achievements expressed or implied by suchforward-looking statements. Such factors include, among others,: theability of the Company to obtain TSXV approval in respect of theOption Agreement and the Offering, the ability of the Company to paythe purchase price as well as any other payments required by theOption Agreement, the risks associated with mineral exploration,including the risk that actual results of exploration will bedifferent from those expected by management,  and the risk that newlaws or regulations could adversely affect the business and results ofoperations of the Company and the anticipated work performed on theCompany’s projects.

There are several important factors that could causethe Company’s actual results to differ materially from thoseindicated 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 operationactivities; unanticipated costs and expenses; fluctuations incommodity prices; and general market and industry conditions. TheCompany cautions that the foregoing list of material factors is notexhaustive. When relying on the Company's forward-lookingstatements and information to make decisions, investors and othersshould carefully consider the foregoing factors and otheruncertainties and potential events.

The Company has assumed that the material factorsreferred to in the previous paragraph will not cause suchforward-looking statements and information to differ materially fromactual results or events. The forward-looking information contained inthis press release represents the expectations of the Company as ofthe date of this press release and, accordingly, is subject to changeafter such date. Readers should not place undue importance on forwardlooking information and should not rely upon this information as ofany other date. While the Company may elect to, it does not undertaketo update this information at any particular time except as requiredin accordance with applicable laws.

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