Western Copper says Mitsubishi Materials to buy 1,200,000 shares in open market to lift stake to about 5%

• Western Copper and Gold extended its investor rights agreement with Mitsubishi Materials through Nov. 30, 2028, conditional on open-market purchases.
• Mitsubishi Materials must buy 1,200,000 common shares; the purchases are non-dilutive since no new shares will be issued.
• Completion would lift Mitsubishi Materials’ stake back to about 5%.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Western Copper and Gold Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001062993-26-003280), on June 22, 2026, and is solely responsible for the information contained therein.