Probe Mines Provides Metallurgy Update for its Borden Gold Project, Ontario
Original announcement by tmx on
- Company
- Probe Mines Limited
- Ticker
- PRB
- Exchange
- TSX
- Region
- Ontario
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Metallurgy
- Extracted
- 2026-08-30 02:21:45 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Probe Mines provided a metallurgical progress update for the Borden Gold project, highlighting an improved gold recovery curve for the Whole Ore Leach (WOL) option compared to 2013 results. The program includes extensive comminution and metallurgical testing to support an upcoming Preliminary Economic Assessment (PEA).
Reasoning: The update shows improving metallurgical recovery curves compared to previous years and provides a clear path toward a PEA, though results are still in the preliminary stage.
Positive factors
- improvement over 2013 results
- QP sign-off provided
- multiple labs used
- comprehensive comminution testing
Negative factors
- results are preliminary/PEA-supporting
- trade-off studies still subject to further analysis
Facts used in scoring: 1

Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The program evaluates whole ore leach and flotation/leach routes involving regrinding.
Evidence · text
“compare the two main process options: 1) gravity + whole ore leach ("WOL"); and 2) gravity + flotation + leach”
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: The release states the contents were approved by Mr. Jacques McMullen, P.Eng, Qualified Person of BBA Inc.
Evidence · text
“The contents of the above have been approved by Mr. Jacques McMullen , P.Eng, Qualified Person of BBA Inc.”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Metallurgical Results (1)
whole ore leachgoldView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- PRB
Test Work
- Program Status
- preliminary
- Test Type
- whole ore leach
- Processing Route
- gravity + whole ore leach (WOL)
- Sample
- WOL option at 75 μm
- Grind P80
- 75 µm
Recovery
- Recovery Basis
- unspecified
Lab
- Laboratory
- SGS Mineral Services (Lakefield)
- Consultant
- BBA Inc.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2014-06-10T00:00:00.000Z
Reasoning: The company identified an optimum grind size and noted improvements in the recovery curve over previous data.
Positive factors
- optimum grind identified
- improvement over 2013 curve
Evidence · text
“The resulting metallurgical recovery curve (WOL at 75 μm) is presented in Figure 1. This updated grade recovery curve shows an overall improvement over the curve released in April 2013 .”
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.