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

Atlas analysis — Probe Mines Limited: Probe Mines Provides Metallurgy Update for its Borden Gold Project, Ontario

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 details
Link to this fact

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.