Tier One Silver Commences Phase 2 Drilling at High-Grade Curibaya Project in Peru

Original announcement by tmx on

Company
Tier One Silver Inc.
Ticker
TSLV
Exchange
TSX
Region
Peru
Primary commodity
Silver
Secondary commodities
Gold, Copper
Document categories
Drill results, Other
Extracted
2026-08-24 06:56:25 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Tier One Silver has commenced Phase 2 drilling at its Curibaya project in Peru, targeting the undrilled Cambaya 1 corridor. The program will test beneath high-grade silver-gold channel samples to evaluate vertical continuity and system scale.

Reasoning: The announcement details the commencement of a new drilling phase targeting high-grade silver-gold mineralization identified via surface sampling. While no new assay results are reported, the targets are high-grade and represent an undrilled portion of the system.

Positive factors

  • high-grade channel samples target
  • undrilled high-level corridor
  • QA/QC disclosed

Negative factors

  • true width unknown

Facts used in scoring: 18

Classification and evidence

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: Release mentions internal standards, blanks, and duplicates for both channel and drill samples.

Evidence · text

“QA/QC programs for channel samples using internal standard and blank samples; field and lab duplicates indicate good overall accuracy and precision.”

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: Multiple silver intercepts exceed 500 g/t, with some reaching 2680 g/t.

Evidence · text

“including 1 m of 2,680 g/t Ag”

Apparent Width Onlynegative

Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: The document explicitly states that true widths of mineralization are unknown due to unknown orientation.

Evidence · text

“True widths of mineralization are unknown due to the unknown mineralized zones orientation.”

Extracted facts

Stored fact records: 18. Some facts used in scoring do not have a stored record.

Drill Results (18)

channel_sample_55_80Curibaya · silverGrade: 243Grade Unit: g/tIntercept: 20 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
243
Grade Unit
g/t
Intercept
20 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade silver intercept from channel sampling.

Positive factors

  • exceptional grade

Evidence · text

“channel samples 55 and 80 which returned 20 metres (m) of 243 grams per tonne (g/t) silver (Ag)”
channel_sample_55_80Curibaya · goldGrade: 0.71Grade Unit: g/tIntercept: 20 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
0.71
Grade Unit
g/t
Intercept
20 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Gold grade associated with high-grade silver channel sample.

Evidence · text

“20 metres (m) of 243 grams per tonne (g/t) silver (Ag) and 0.71 g/t gold (Au)”
channel_sample_55_80Curibaya · silverGrade: 667Grade Unit: g/tIntercept: 7 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
667
Grade Unit
g/t
Intercept
7 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade sub-interval within channel sample.

Positive factors

  • bonanza intercept

Evidence · text

“including 7 m of 667 g/t Ag”
channel_sample_55_80Curibaya · goldGrade: 1.48Grade Unit: g/tIntercept: 7 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1.48
Grade Unit
g/t
Intercept
7 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Gold grade associated with high-grade silver sub-interval.

Evidence · text

“7 m of 667 g/t Ag and 1.48 g/t Au”
channel_sample_55_80Curibaya · silverGrade: 408Grade Unit: g/tIntercept: 4.5 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
408
Grade Unit
g/t
Intercept
4.5 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade silver sub-interval.

Evidence · text

“4.5 m of 408 g/t Ag”
channel_sample_55_80Curibaya · goldGrade: 1.48Grade Unit: g/tIntercept: 4.5 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1.48
Grade Unit
g/t
Intercept
4.5 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Gold grade associated with high-grade silver sub-interval.

Evidence · text

“4.5 m of 408 g/t Ag and 1.48 g/t Au”
channel_sample_55_80Curibaya · silverGrade: 1768Grade Unit: g/tIntercept: 1 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1768
Grade Unit
g/t
Intercept
1 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Extremely high grade silver sub-interval.

Positive factors

  • Bonanza Intercept

Evidence · text

“including 1 m of 1,768 g/t Ag”
channel_sample_55_80Curibaya · goldGrade: 6.33Grade Unit: g/tIntercept: 1 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_55_80
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
6.33
Grade Unit
g/t
Intercept
1 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High grade gold associated with bonanza silver.

Evidence · text

“1 m of 1,768 g/t Ag and 6.33 g/t Au”
channel_sample_34Curibaya · silverGrade: 232Grade Unit: g/tIntercept: 11 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_34
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
232
Grade Unit
g/t
Intercept
11 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade silver channel sample.

Evidence · text

“channel sample 34 which returned 11 m of 232 g/t Ag”
channel_sample_34Curibaya · goldGrade: 1.61Grade Unit: g/tIntercept: 11 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_34
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1.61
Grade Unit
g/t
Intercept
11 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Gold grade associated with silver channel sample.

Evidence · text

“11 m of 232 g/t Ag and 1.61 g/t Au”
channel_sample_34Curibaya · silverGrade: 1660Grade Unit: g/tIntercept: 1 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_34
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1660
Grade Unit
g/t
Intercept
1 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade silver sub-interval.

Positive factors

  • Bonanza Intercept

Evidence · text

“including 1 m of 1,660 g/t Ag”
channel_sample_34Curibaya · goldGrade: 13.95Grade Unit: g/tIntercept: 1 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_34
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
13.95
Grade Unit
g/t
Intercept
1 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2021-10-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High grade gold associated with bonanza silver.

Evidence · text

“1 m of 1,660 g/t Ag and 13.95 g/t Au”
channel_sample_56Curibaya · silverGrade: 349Grade Unit: g/tIntercept: 8 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_56
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
349
Grade Unit
g/t
Intercept
8 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2022-09-26T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade silver channel sample.

Evidence · text

“channel sample 56 which returned 8 m of 349 g/t Ag”
channel_sample_56Curibaya · goldGrade: 0.46Grade Unit: g/tIntercept: 8 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_56
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
0.46
Grade Unit
g/t
Intercept
8 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2022-09-26T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Lower grade gold associated with silver channel sample.

Evidence · text

“8 m of 349 g/t Ag and 0.46 g/t Au”
channel_sample_56Curibaya · silverGrade: 2680Grade Unit: g/tIntercept: 1 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_56
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
2680
Grade Unit
g/t
Intercept
1 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2022-09-26T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Extremely high grade silver sub-interval.

Positive factors

  • Bonanza Intercept

Evidence · text

“including 1 m of 2,680 g/t Ag”
channel_sample_56Curibaya · goldGrade: 3.14Grade Unit: g/tIntercept: 1 mHistorical resultNeeds review: ungroundedView all details
Link to this fact

Identity

Hole ID
channel_sample_56
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
3.14
Grade Unit
g/t
Intercept
1 m

Classification

Sample Type
surface

Review

Needs Review
Yes
Review Reason
ungrounded
Interp. Status
scored
Historical
Yes
Historical Source Date
2022-09-26T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High grade gold associated with bonanza silver.

Evidence · text

“1 m of 2,680 g/t Ag and 3.14 g/t Au”
21CUR-016Curibaya · silverGrade: 1129Grade Unit: g/tIntercept: 1.5 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
21CUR-016
Project
Curibaya
Commodity
silver
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1129
Grade Unit
g/t
Intercept
1.5 m

Classification

Sample Type
drill

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes
Historical Source Date
2022-02-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: High-grade silver intercept from prior drilling.

Positive factors

  • Bonanza Intercept

Evidence · text

“hole 21CUR-016 that intercepted 1.5 m of 1,129 g/t Ag”
21CUR-016Curibaya · goldGrade: 1.04Grade Unit: g/tIntercept: 1.5 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
21CUR-016
Project
Curibaya
Commodity
gold
Region
peru
Reported Region
Peru
Ticker
TSLV

Geometry

Grade
1.04
Grade Unit
g/t
Intercept
1.5 m

Classification

Sample Type
drill

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes
Historical Source Date
2022-02-14T00:00:00.000Z

Dates

Event date
2026-02-18T00:00:00.000Z

Reasoning: Gold grade associated with high-grade silver intercept.

Evidence · text

“1.5 m of 1,129 g/t Ag and 1.04 g/t Au”

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.