Denison Mines lifts Cosa Resources stake to 18.9% after share issuance

• Denison Mines received 2,154,476 shares in Cosa at a deemed price of $0.69 under a deferred consideration arrangement.
• Denison’s stake rose to 23,895,340 shares, equal to 18.9% of shares outstanding on a partially diluted basis.
• Denison also holds 2,417,679 warrants, representing 13.5% of warrants outstanding, triggering an early warning filing.

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. Cosa Resources Corp. published the original content used to generate this news brief via Newsfile (Ref. ID: 202607150800NEWSFILECNPR____20260715_305222_1) on July 15, 2026, and is solely responsible for the information contained therein.