Golden Goose Resources Secures Option to Acquire High-Grade Gran Esperanza Gold Project in Argentina

Golden Goose Resources Ltd. has entered into a Definitive Agreement with Valcheta Exploraciones S.A.S. to acquire up to a 100% interest in the Gran Esperanza Project, a highly prospective epithermal gold-silver property located in Río Negro Province, Argentina. This agreement represents a significant corporate milestone and reinforces the company's strategy of securing district-scale, high-grade precious metal assets in proven and emerging mining jurisdictions.

The project encompasses approximately 44,400 hectares of year-round accessible terrain in the Los Menucos District within the North Patagonian Massif, a region known for its high-grade precious metal potential. The property benefits from excellent infrastructure, situated approximately two kilometres from a paved highway with gentle topography and numerous secondary roads across the property. The project is surrounded by major operators, including Southern Copper, and located near the Calcatreu Project which is currently under development according to information available at https://www.mining-technology.com/projects/calcatreu/. Historical exploration has mapped greater than 10 kilometres of low-sulfidation epithermal gold vein exposures, with veins averaging approximately 1-5 metres in apparent width.

Historical surface sampling highlights include channel samples reporting grades up to 2.0 metres at 24.0 g/t Au, 5.0 metres at 13.1 g/t Au, and 1.3 metres at 11.5 g/t Au, demonstrating high-grade potential from surface. Additional sampling reported 0.2 metres at 99.0 g/t Ag and 2.8% Cu, and 1.2 metres at 129.0 g/t Ag and 3.5% Cu. Readers are cautioned that the Qualified Person has not completed sufficient work to verify this historical information, and therefore such information should not be relied upon. Greater than 2,900 metres of trenching with 690 channel samples have been collected, with 30 trenches excavated exposing 2,937 metres of epithermal veins.

Prior to executing the Definitive Agreement, Golden Goose completed a comprehensive technical and legal due diligence process, including a detailed review of historical data and a site visit in December 2025. During this visit, the company collected four rock-chip samples from exposed mineralized veins, with three samples returning gold values above 2.0 g/t Au, including one sample grading 14.34 g/t Au. These results provide confirmation of the high-grade potential in the mineralized system. The samples were analyzed by ASI Laboratories, Mendoza, Argentina, an independent certified commercial laboratory, with details available at https://www.asilaboratories.com/.

Under the Definitive Agreement, Golden Goose may earn up to a 100% interest in the Gran Esperanza Project through a staged option consisting of cash payments totaling US$1,889,500 and exploration expenditures totaling US$2,599,000. The project is subject to a 1.0% net smelter return royalty, of which Golden Goose has the right to purchase 0.5% for US$1.0 million. The company retains full flexibility to accelerate option payments or exploration expenditures at its discretion. Upon exercising the First Option, Golden Goose and Valcheta will form a joint venture, with Golden Goose acting as operator and holding a 51% interest. Alternatively, the company may elect to proceed directly to a 90% ownership position by exercising the Second Option. Upon exercising the Third Option, Golden Goose will hold a 100% undivided interest in the project.

Dustin Nanos, CEO of Golden Goose Resources, commented that signing the Definitive Agreement for Gran Esperanza represents an important milestone and transformative step for the company. He noted the project's favorable structural and geological setting, confirmation of numerous surface-exposed vein networks, excellent historical reported grades, and outstanding site access. The information collected to date positions Gran Esperanza as a compelling, drill-ready exploration project with the potential to rapidly deliver high-impact results. The technical content of the news release has been reviewed and approved by Marie-Pier Boivin, P.Geo, Senior Geologist at Dahrouge Geological Consulting Ltd., a consultant of the company, and a Qualified Person pursuant to National Instrument 43-101.