Ameriwest Reports Strong Bornite Copper Project Assays
Modern analysis of historical drill core shows higher-than-expected copper grades at the Oregon project site.
Updated on Oct. 28, 2026 in Current Conditions
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Ameriwest Critical Metals has released new assay results from historical drill core at its Bornite project in Oregon. The modern re-sampling of drill hole CC30 returned copper equivalent grades that outperform historical values by approximately 6%.
Why it matters
The re-sampling program serves to validate the reliability of decades-old data, which is a necessary step for the company to support a future mineral resource estimate. By confirming the consistency of historical findings, the company moves closer to establishing formal mineral resources at the site.
Drill hole CC30 confirmed 110.0 feet of material grading 5.87% copper equivalent, including a 71.0-foot sub-interval grading 8.08%. The current program covers seven total holes from a broader database of 48 historical drill locations.
The players
Ameriwest Critical Metals
This mining exploration company is based in Vancouver, BC, and focuses on developing critical metal assets.
ALS Global Geochemistry
This company operates an analytical laboratory in Reno, Nevada, which performed the multi-element and fire assay analysis for the core samples.
The details
The process involves cutting preserved historical half-core samples into quarter-core segments for testing at an analytical laboratory. This work focuses on comparing modern multi-element and fire assay methods against data collected between 1976 and 1990.
Timeline
Original drilling of the historical core took place between 1976 and 1990.
The company previously announced assay results on October 14, 2026.
Ameriwest announced the current set of updated assay results on October 28, 2026.
Seasonal Patterns
The effort to re-validate historical drill data follows the National Instrument 43-101 standards for mineral resource disclosure. This systematic verification marks a transition from relying on legacy records to building a standardized current mineral resource estimate.
The current project status means that no active mining or resource extraction is permitted at the Bornite site while the company continues its sampling phase. Interested parties can track the formal progress of the company by reviewing its official regulatory filings.
The takeaway
Validating decades-old drilling data is a crucial step for companies looking to prove the economic viability of legacy mine sites. Investors should watch for the remaining drill results as they will dictate the company's ability to formally estimate its mineral reserves.
What happens next
Ameriwest plans to release assay results for the remaining four historical drill holes and will subsequently assess the requirements needed to support an initial mineral resource estimate.
Further reading
For more information on resource development in the region, see Current Conditions.
More information
View the latest Company regulatory filings to monitor the project's progress.
Source note: This article includes information reported by Toronto Telegraph.
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