Golden Cariboo expands Halo Zone 200 m at QGQ26-30

August 12, 2026 – TheNewswire - Vancouver, BC, Canada – Golden Cariboo Resources Ltd. (the “Company”) (CSE:GCC) (OTC:GCCFF) (WKN:A402CQ) (FSE:3TZ) announces the completion of core logging and sampling for diamond drill hole QGQ26-30, which targeted the western margin of the Company's Halo zone at its flagship Quesnelle Gold Quartz Mine Property, located approximately 4 kilometres (2.5 miles) northeast of Hixon, British Columbia. The Halo zone forms part of the Company's broader mineralized corridor at the Property and has become a significant focus of ongoing exploration.

Drill hole QGQ26-30, completed to a final logged depth of 402.38 m (1,320.14 ft), successfully intersected broad intervals of intense sericite and carbonate altered volcanic rocks dominated by andesite tuff, along with distinctive chromium-mica (fuchsite) alteration. Mineralized quartz and quartz-carbonate veining was common throughout the hole and appears to be closely associated with gold mineralization. Visible gold was observed on several occasions as irregular shaped flecks, typically less than 1 mm in size but reaching up to 3 mm, occurring adjacent to and within quartz-carbonate veins containing disseminated to cubic pyrite. Sulphide mineralization is dominated by pyrite with minor chalcopyrite and rare pyrrhotite, as well as localized semi-massive to massive sulphide intervals. Notably, visible gold measuring approximately 2 to 3 mm was identified in close proximity to subhedral to near-euhedral pyrite cubes up to 1 cm in size, as shown in the photo below. Listwanite was intersected near the bottom of the hole between 384.77 m and 385.25 m, enveloped within an andesitic volcanosedimentary unit and surrounded by a 16.27 m halo of disseminated sulphide mineralization containing up to 20% replacement pyrite. These initial observations from QGQ26-30 indicates gold mineralization exists at least 200 metres west of QGQ24-20 which reported 1.55 g/t gold with 16.05 g/t silver over 137.17 m (450.0 ft) ( News Release dated August 12, 2025 ) and suggests mineralization continues to be open in all directions.

"This represents an important step out from previously defined mineralization and further demonstrates the lateral continuity and scale potential of the Halo system," said Frank Callaghan, President and CEO.

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Photo 1 : Visible gold above the euhedral pyrite cube to the left and possible sub mm sized gold flecks along the margins of the 1 cm pyrite cube to the right.

All samples from QGQ26-30 have been submitted to MSALabs in Prince George, British Columbia, for photon assay analysis, with results pending. The results will be included in the Golden Cariboo’s upcoming Mineral Resource Estimate (MRE) as also described in the News Release dated July 22, 2026 .

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The technical information in this news release has been reviewed and approved by Jean Paulter , an independent consultant commissioned by the Company. Jean Paulter is a Professional Geoscientist (P.Geo.) registered with the Association of Professional Engineers and Geoscientists of the Province of BC (“APEGBC”) and licensed by Engineers and Geoscientists BC and is a “Qualified Person” with respect to NI 43-101.

About Golden Cariboo Resources Ltd.

Golden Cariboo Resources Ltd. is rediscovering the Cariboo Gold Rush by proceeding with highly targeted drilling and trenching programs on its Quesnelle Gold Quartz Mine property which is bordered by Osisko Development (NSE:ODV/TSXV:ODV), partly intertwined with them at the north end of the Cariboo Gold Project, and located along a favourable corridor adjacent to the Spanish and Eureka thrust faults over a 94,899 hectare (234,501 acre) area. Historically, over 101 placer gold creeks on the 90- kilometer (56 mile) trend, from the Cariboo Hudson mine north to the Quesnelle Gold Quartz Mine property, have recorded production with successful placer mining continuing to this day.

Golden Cariboo’s Quesnelle Gold Quartz Mine property is 4 kilometers (2.5 miles) northeast of, and road accessible from, Hixon in central British Columbia. The Property includes the Quesnelle Quartz gold-silver deposit, which was discovered in 1865 and developed over a footprint of about 150m x 150m (< 6 acres) at the Main zone straddling Hixon Creek. Overall, the geological setting of the gold mineralization at the Company’s Quesnelle Gold Quartz Mine property shows strong similarities with the Spanish Mountain gold deposit, situated 120 km (75 miles) towards the southeast along the same geological trend. As a sediment-hosted vein (SHV) deposit, the Spanish Mountain deposit is considered to belong to the epizonal orogenic subclass of gold deposits which include some of the world’s largest deposits such as Muruntau, Uzbekistan and Bendigo, Australia.

For further information please contact:

GOLDEN CARIBOO RESOURCES LTD

“J. Frank Callaghan”

J. Frank Callaghan, President & CEO

Tel: 604-669-6463

VISIT OUR WEBSITE FOR MORE DETAILS

www.goldencariboo.com

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Neither the “CSE” Canadian Securities Exchange nor its Regulation Service Provider (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cautionary Statements:

This news release contains statements which constitute “forward-looking information” within the meaning of applicable securities laws, including statements regarding the plans, intentions, beliefs and current expectations of the Company with respect to future business activities and plans of the Company. Forward-looking information is often identified by the words “may”, “would”, “could”, “should”, “will”, “intend”, “plan”, “anticipate”, “believe”, “estimate”, “expect” or similar expressions and includes information regarding; the expectation that the Company will receive all necessary exemptions and approvals to complete the Offering; the expectation that the Company will complete the Offering on the terms disclosed, or at all; the expectation that the proceeds will be used for property exploration and for general working capital; the Company’s exploration plans with respect to its Quesnelle Gold Quartz Mine property; and the anticipated participation of the insider in the Offering.

Such forward-looking statements are based on a number of assumptions of management, including, without limitation, that the Company will receive all necessary exemptions and approvals to complete the Offering; that the Company will complete the Offering on the terms disclosed, or at all; that the proceeds will be used for property exploration and for general working capital; that the Company will have the resources required to proceed with its exploration plans; that the Company will not run into regulatory or other barriers in carrying out its business plans; that the insider will participate in the Offering, on the terms and conditions and in the amount currently expected by management; and that the Company will be able to rely on the exemption from the formal valuation and minority shareholder approval requirements on the basis anticipated.

Additionally, forward-looking information involve a variety of known and unknown risks, uncertainties and other factors which may cause the actual plans, intentions, activities, results, performance or achievements of the Company to be materially different from any future plans, intentions, activities, results, performance or achievements expressed or implied by such forward-looking statements. Such risks include, without limitation: that the Company will not receive the necessary exemptions and approvals to complete the Offering; that the Company will not complete the Offering on the terms disclosed, or at all; that the Company will be unable to use the proceeds for property exploration and for general working capital; that the Company may incur unanticipated costs; that the Company may not have the resources required to pursue its exploration plans; that the Company’s operations could be adversely affected by possible future government legislation policies and controls or by changes in applicable laws and regulations; that the insider may not participate in the Offering on the terms and conditions and in the amount currently expected by management, or at all; and that the Company may not be able to rely on the exemption from the formal valuation and minority shareholder approval requirements on the basis currently expected. Such forward-looking information represents management’s best judgment based on information currently available. No forward-looking statement can be guaranteed and actual future results may vary materially. Accordingly, readers are advised not to place undue reliance on forward-looking statements or information. Neither the Company nor any of its representatives make any representation or warranty, express or implied, as to the accuracy, sufficiency or completeness of the information in this news release. Neither the Company nor any of its representatives shall have any liability whatsoever, under contract, tort, trust or otherwise, to you or any person resulting from the use of the information in this news release by you or any of your representatives or for omissions from the information in this news release.

The forward-looking statements herein speak only as of the date they were originally made. The Company has no intention and undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

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August 12, 2026 - 6:00 AM PDT

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