Western Copper and Gold Provides Corporate Update

Western Copper and Gold Corporation (TSX: WRN) (NYSE American: WRN) ("Western" or the "Company") is pleased to provide an update on recent developments relating to the Casino Project.

Mitsubishi Materials Share Purchases Completed: Further to the Company's news release dated June 15, 2026, Mitsubishi Materials Corporation has completed its acquisition of 1.2 million common shares of the Company through non-dilutive open market purchases, satisfying the conditions for the extension of the amended and restated investor rights agreement. Mitsubishi Materials' ownership in Western has returned to approximately 5%.

YESAB Sufficiency Responses Submitted: On July 15, 2026, the Company submitted its responses to the supplementary information and clarification requests received from the Executive Committee of the Yukon Environmental and Socio-economic Assessment Board ("YESAB"). The responses add to the substantial body of technical work that is the foundation for YESAB's review of the Project. Upon a determination of sufficiency, the Executive Committee will establish the Panel and set its terms of reference.

Yukon-B.C. Grid Connect Named a Federal Priority: On June 26, 2026, the Honourable Tim Hodgson, Minister of Energy and Natural Resources, announced that the federal government will prioritize financial and regulatory support for five transmission projects across Canada, including the Yukon-B.C. Grid Connect. The announcement builds on Canada's National Electricity Strategy, launched by Prime Minister Mark Carney on May 14, 2026, which aims to double the capacity of Canada's grid by 2050.

About Western Copper and Gold Corporation Western Copper and Gold Corporation is advancing the Casino Project, Canada's premier copper-gold mine in the Yukon and one of the most economic greenfield copper-gold mining projects in the world. The Company is committed to working collaboratively with First Nations and local communities to progress the Casino Project, using internationally recognized responsible mining technologies and practices. For more information, visit www.westerncopperandgold.com.