WESTERN COPPER FORMALLY EXTENDS INVESTOR RIGHTS AGREEMENT WITH MITSUBISHI MATERIALS

Core Points - Mitsubishi Materials Corporation has completed the precondition for the extension of their investor rights agreement with Western Copper and Gold Corporation [1] - Mitsubishi Materials acquired two million common shares, increasing their ownership to approximately 5%, leading to the extension of the investor rights agreement to May 30, 2026 [2] - The President and CEO of Western Copper and Gold Corporation expressed satisfaction in maintaining and enhancing the relationship with Mitsubishi Materials, highlighting their support and expertise in advancing the Casino Project [3] Company Overview - Western Copper and Gold Corporation is developing the Casino Project, recognized as Canada's premier copper-gold mine located in the Yukon Territory, and is considered one of the most economically viable greenfield copper-gold mining projects globally [3] - The company is committed to collaborating with First Nations and local communities to progress the Casino Project while employing internationally recognized responsible mining technologies and practices [4]