Critical One Energy Inc. (CSE: CRTL) has released assay results from three additional drill holes at its Howells Lake Antimony-Gold Project in northwestern Ontario, extending the East Zone antimony mineralization 100 metres northwest of previously reported high-grade intersections. Independently, Micon International Limited has outlined an exploration target of 2 to 6 million tonnes grading 3% to 8% antimony — the first time a scale has been placed on the project. With 16 holes still awaiting assays and eight additional holes planned before the end of November 2026, investors may be watching closely as the company builds toward an initial mineral resource estimate.

Key Points

  • Critical One Energy Inc. (CSE: CRTL, OTCQB: CTLOF, FSE: 4EF)
  • Micon International Limited has outlined an independent exploration target of 2 to 6 million tonnes grading 3% to 8% antimony at Howells Lake
  • Hole HWL-2026-021 returned 4.0 m grading 4.52% antimony, including 2.0 m at 7.96% antimony; 16 holes remain pending assay results
  • Investors should monitor pending assay releases and progress toward an initial mineral resource estimate for the East Zone

Micon's Independent Exploration Target Puts Scale on Howells Lake for the First Time

Micon International Limited, which authored the company's NI 43-101 technical report on the Howells Lake Project, has advised Critical One Energy that drilling data supports an exploration target of 2 to 6 million tonnes grading 3% to 8% antimony. The target is based on significant intersections from the 2026 drilling campaign, historical results, and the fact that mineralization remains open. The company cautions that the potential quantity and grade are conceptual in nature, that insufficient exploration has been completed to define a mineral resource, and that it is uncertain whether further exploration will result in the target being delineated as a mineral resource.

New Drill Results Extend East Zone Antimony Mineralization to the Northwest

Holes HWL-2026-021, HWL-2026-022, and HWL-2026-023 extend antimony mineralization 100 metres northwest of previously reported high-grade East Zone intersections. HWL-2026-021 returned 4.0 m grading 4.52% antimony, including 2.0 m at 7.96% antimony, from 120 m to 124 m downhole, and an additional 2.0 m grading 3.93% antimony from 165 m to 167 m. HWL-2026-023 intersected 5.0 m grading 1.66% antimony, including 2.0 m at 3.10% antimony. HWL-2026-022 returned 13.0 m grading 0.59% antimony and 0.23 g/t gold from 204 m to 217 m downhole. The release notes all reported intervals represent core lengths and true widths have not been determined.

Program Advances Toward 15,000-Metre 2026 Target with 16 Holes Still Pending

The 2026 drill program has now surpassed 12,000 metres toward a stated 2026 objective of 15,000 metres, working toward the 20,000-metre program recommended by Micon. Assay results from 16 East Zone holes already drilled remain pending, including two awaiting overlimit antimony analysis. The company states eight additional East Zone holes are planned before the end of November 2026, with some targeting depths of up to 400 metres below surface. The disclosure states that all results will be released as they are received, with the broader aim of accumulating data needed for an initial mineral resource estimate.