Golden Cariboo Resources Ltd. (CSE: GCC) (OTC: GCCFF) (WKN: A402CQ) (FSE: 3TZ) announces an update on its PhotonAssayTM orientation study, an advanced assay technology designed to deliver precise and efficient results for gold exploration. The Company has contracted ALS Canada Ltd. to conduct an orientation study utilizing innovative Chrysos PhotonAssayTM technology to analyze gold content in select rock and drill core samples from its Quesnelle Gold Quartz Mine property, located approximately 4 kilometers (2.5 miles) northeast of Hixon, central British Columbia, Canada. This study, detailed in the April 29, 2025 News Release, is designed to evaluate the potential for better addressing the nugget effect, one of the most persistent challenges in precious metals exploration, while potentially improving assay turnaround times.

The ALS Canada Ltd. laboratory in Thunder Bay, Ontario, Canada have confirmed receipt of pulp and reject samples of the selected samples of drill hole QGQ24-20 which were prepared by their North Vancouver laboratory and from which earlier fire assay analysis reported 0.71 g/t gold with 6.96 g/t silver over 341.96 m (1121.9 ft) from 20.12 m (66.0 ft), including 0.99 g/t gold with 9.8 g/t silver over 236.88 m (777.2 ft) and 1.45 g/t gold with 16.05 g/t silver over 137.17 m (450.0 ft) (February 25, 2025 News Release). Additionally, with preparation now completed at the North Vancouver, BC laboratory, reject samples of drill hole QGQ24-21 are also enroute to the lab in Thunder Bay for photon assay prior to pulverizing the ~500 gram (1.1 pound) sample and completing a fire assay for gold on a 50 gram aliquot from the same sample. Drill hole QGQ24-21 reported multiple <1mm visible gold grains observed (April 17, 2025 News Release) and was the ninth consecutive hole with visible gold since the initial discovery of the Halo zone in July, 2024 (July 18, 2024 News Release). Ultimately, pending final results and overview, photon assay may replace fire assay as the main method for gold quantification in all future rock and core samples taken at the Property. ALS Canada’s commitment for rapid processing and quality analysis ensures that results will be delivered promptly, and the Company looks forward to sharing these findings in the coming days.

“Golden Cariboo remains committed to employing innovative exploration techniques and appreciates the continued support of its shareholders,”

“The upcoming results will provide valuable insights as we advance our exploration efforts at the Quesnelle Gold Quartz Mine property.”

said Frank Callaghan, President and CEO of Golden Cariboo Resources Ltd. “

The technical information in this news release has been reviewed by Jean Pautler, an independent consultant commissioned by the Company. Jean Pautler 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, partly intertwined with them at the north end of the Cariboo Gold Project, and located along a favorable 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 and successful placer mining continues 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 in conjunction with placer mining activities. Hixon Creek, which dissects the old workings, is a placer creek which has seen small-scale placer production since the mid 1860s.