• Critical One Energy reported positive preliminary metallurgy from its Howells Lake antimony-gold project in northwestern Ontario.
• Blue Coast Research found antimony mainly hosted in stibnite, with high liberation after grinding to 106 micrometers.
• Stibnite liberation measured 92.8%-99.1%; berthierite liberation measured 84.9%-89.7% across four Hole 6 samples.
• No arsenic or mercury-bearing minerals were identified, supporting potential concentrate quality and marketing optionality.
• Next testwork targets flotation response, antimony recovery, concentrate quality, with broader sampling across the project.

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. Critical One Energy Inc. published the original content used to generate this news brief via Newsfile (Ref. ID: 202607270720NEWSFILECNPR____20260727_306542_1) on July 27, 2026, and is solely responsible for the information contained therein.