Critical One Energy reports positive early metallurgy results at Howells Lake antimony-gold project

• 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.

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