Western Copper and Gold Corporation announced its 2023 drilling program (the "Program") at its wholly owned Casino Copper-Gold Project ("Casino"). The Program was developed by Western's Technical and Sustainability Committee, which is comprised of members from Western, Rio Tinto and Mitsubishi Materials, as outlined in the Investor Rights Agreements entered as part of investments by Rio Tinto Canada and Mitsubishi Materials into Western. The program is outlined below: Metallurgical and Infill Drilling.

A diamond drill program consisting of approximately 2,200 m of drilling in seven drill holes, ranging from 130 m to 560 m in depth, has been initiated. These drill holes are located inside the current pit boundaries and upon completion, this program is expected to result in upgrading of some of the Indicated Resource to the Measured Resource category. A metallurgical program, using drill core collected from this program, will commence upon completion of drilling and receipt of assays.

The program will focus on developing a more detailed geometallurgical model of the deposit, with a focus on an updated recovery and concentrate model. Geotechnical and Hydrogeological Drilling. This will target the ground conditions of the proposed open pit, stockpiles, tailings management facility, heap leaching facility, new airstrip, and the proposed Ranney well site.