Western Copper & Gold Corp

2026 Site Program

Western's focus remains on advancing Casino through the ongoing assessment process with the Yukon Environmental and Socio-economic Assessment Board ("YESAB"). In parallel, the current site program is designed to advance specific aspects of engineering design and optimization, positioning the Company for the next phases of technical analysis and supporting future planned permitting activities.

The program includes further geotechnical drilling and permafrost investigations across proposed mine infrastructure sites, including the tailings management facility, heap leach facility, stockpile areas, and open pit. Metallurgical drill holes are also planned within the oxide cap to provide additional sample density across key ore types and support ongoing test work focused on enhancing metal recovery. This work is complemented by test pits, ground geophysical surveys, and a drone magnetics survey.

For the first time in years, the Company is evaluating targets on the broader land package to support the planning of future exploration concepts.

"Our team is executing a program designed to deepen the engineering behind the Project as we prepare for the technical analysis phase of the YESAB Panel Review," said Sandeep Singh, President & CEO of Western."We benefit from a considerable amount of technical work on the Project historically. That said, each new stage of the Project's advancement requires additional layers of detail, and we remain committed to doing the right work to outline a long-life, thoughtfully designed, and sustainable project for the benefit of all Yukoners."

"Attention has understandably been on advancing the Project itself," said Mr. Singh."But the more time our new team spends on the ground, the clearer it becomes that the prospectivity of the broader 21,300-hectare land package remains largely untested. This season we begin investigating some of those concepts for potential future exploration."