Tertiary Minerals MD: 'Really very impressive' grades as Mushima North deepens
Original announcement by proactiveinvestors on
- Company
- Tertiary Minerals PLC
- Ticker
- TYM
- Exchange
- Unavailable
- Region
- Zambia
- Primary commodity
- Silver
- Secondary commodities
- Copper
- Document categories
- Drill results, Resource update
- Extracted
- 2026-09-07 11:33:36 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Tertiary Minerals has reported encouraging drilling results at the Mushima North project in Zambia, extending mineralisation at depth with silver-equivalent grades exceeding 100g/t. The company is currently advancing towards a maiden mineral resource estimate expected by year-end and is conducting metallurgical test work.
Reasoning: The announcement reports high-grade silver-equivalent intercepts (>100g/t) and successful depth extension at the Mushima North project, which is a significant exploration milestone.
Positive factors
- extension of mineralisation at depth
- high-grade silver-equivalent intercepts (>100g/t)
- potential for oxide-to-sulphide transition
- near-term open-pit potential
Negative factors
- sulphide transition remains untested
- maiden resource estimate still pending
Facts used in scoring: 3
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling has extended mineralisation beyond the depth of the existing exploration target at Target A1.
Evidence · text
“drilling has extended mineralisation beyond the depth of the existing exploration target at Target A1”
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: Silver equivalent grades over 100g/t are noted as 'really very impressive'.
Evidence · text
“Silver equivalent grades over 100g a tonne. Really very impressive”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Drill Results (3)
Fact 1Mushima North · silverGrade: 100Grade Unit: g/tNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 100
- Grade Unit
- g/t
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Mining Method
- open_pit
Location
- Location
- Target A1
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- QP Signed
- No
- QA/QC Methods
- standards
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Metal Eq. Grade
- 100
- Metal Eq. Unit
- g/t silver equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-07T00:00:00.000Z
Reasoning: Silver equivalent grades over 100g/t are described as 'really very impressive' by the MD.
Positive factors
- high grade intercept
Evidence · text
“Silver equivalent grades over 100g a tonne. Really very impressive”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Metal Equivalent Opaquenegative
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
Why it applies: an equivalent grade is reported without its assumptions
Fact 2Mushima North · silverGrade: 40Grade Unit: g/tNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 40
- Grade Unit
- g/t
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Mining Method
- open_pit
Location
- Location
- Target A1
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- QP Signed
- No
- QA/QC Methods
- standards
Deleterious
- Deleterious Flag
- No
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-07T00:00:00.000Z
Reasoning: Refers to the existing exploration target parameters at Target A1.
Positive factors
- established target scale
Evidence · text
“Target A1, currently 15-30 million tonnes grading 40-60g/t silver equivalent”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Fact 3Mushima North · silverGrade: 60Grade Unit: g/tNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 60
- Grade Unit
- g/t
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Mining Method
- open_pit
Location
- Location
- Target A1
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- QP Signed
- No
- QA/QC Methods
- standards
Deleterious
- Deleterious Flag
- No
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-07T00:00:00.000Z
Reasoning: Refers to the existing exploration target parameters at Target A1.
Positive factors
- established target scale
Evidence · text
“Target A1, currently 15-30 million tonnes grading 40-60g/t silver equivalent”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
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.