Ridgestone Announces Execution of Option Agreement to Acquire 100% Interest in the Advanced-Stage Guadalupe y Calvo Project in Mexico
Original announcement by tmx on
- Company
- Ridgestone Mining Inc.
- Ticker
- RMI
- Exchange
- TSX
- Region
- Chihuahua State, Mexico
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Resource update, Agreement transaction
- Extracted
- 2026-09-18 19:07:37 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Ridgestone Mining Inc. has executed an option agreement to acquire a 100% interest in the Guadalupe y Calvo gold-silver project in Mexico from Endeavour Silver Corp. The project contains a significant historical NI 43-101 resource, though Ridgestone notes these estimates are historical and should not be relied upon for current operations.
Reasoning: Ridgestone has signed an option agreement to acquire a 100% interest in the Guadalupe y Calvo project, which contains significant historical gold-silver resources.
Positive factors
- Acquisition of an advanced-stage project
- Significant historical high-grade resource
- Expansion potential along strike and at depth
Negative factors
- Historical resource estimates are not current and should not be relied upon
- Acquisition subject to TSX Venture Exchange approval
Facts used in scoring: 3
Classification and evidence
Nearology Playneutral · Story-specific tag
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: The project is described as complementing Ridgestone's existing Rebeico Project.
Evidence · text
“This project compliments our Rebeico Project”
Historical Estimate Onlynegative
Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
Why it applies: The resource estimate was prepared by Endeavour Silver Corp. in 2012 and is considered historical by Ridgestone.
Evidence · text
“For Ridgestone's purposes, the estimate for GyC are considered to be historical estimates”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Resource Estimates (2)
indicatedView all detailsHide details
Identity
- Region
- mexico
- Reported Region
- Chihuahua State, Mexico
- Ticker
- RMI
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:6bd932b3f28c5dd0a35c
- Mining method
- underground
Resource Data
- Category
- indicated
Metal Equivalent
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-02-01T00:00:00.000Z
Reasoning: Historical Indicated resource reported.
Positive factors
- High grade AuEq
Negative factors
- Historical status
- Not current
Evidence · text
“Host to a historical NI 43-101 Indicated Resource of 236,543 gold-equivalent ounces grading 3.95 g/t AuEq”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
inferredView all detailsHide details
Identity
- Region
- mexico
- Reported Region
- Chihuahua State, Mexico
- Ticker
- RMI
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:9004debac81b91dd46a0
- Mining method
- underground
Resource Data
- Category
- inferred
Metal Equivalent
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2021-02-01T00:00:00.000Z
Reasoning: Historical Inferred resource reported.
Positive factors
- Gold-equivalent grade
Negative factors
- Historical status
Evidence · text
“plus an Inferred Resource of 16,713 gold-equivalent ounces grading 3.38 g/t AuEq”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
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.