Omai Gold Mines Files NI 43-101 Technical Report Supporting a Preliminary Economic Assessment Indicating After-Tax NPV5% of $4.0 Billion at a $3,600/oz Gold Price for its Omai Gold Project
Original announcement by jmn on
- Company
- Omai Gold Mines Corp.
- Ticker
- OMG
- Exchange
- TSXV
- Region
- Guyana
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Other, Resource update
- Extracted
- 2026-10-05 14:32:06 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Omai Gold Mines has filed a NI 43-101 technical report supporting a Preliminary Economic Assessment (PEA) for its Omai Gold Project in Guyana. The PEA indicates an after-tax NPV5% of $4.0 billion and an 18-year mine life with 6.3 million ounces of gold production.
Reasoning: The filing of a NI 43-101 technical report supporting a high-value PEA for a large-scale gold project is a major project development milestone.
Positive factors
- Strong NPV5% of $4.0 billion at $3,600/oz gold
- High IRR of 24% at base case
- Significant LOM gold production of 6.3 million ounces
- Large Indicated resource of 2.5 Moz Au
Negative factors
- PEA is preliminary and includes significant Inferred resources
Facts used in scoring: 2
Classification and evidence
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: The technical report supports a Preliminary Economic Assessment (PEA) for the Omai Gold Project.
Evidence · text
“in support of the Preliminary Economic Assessment ("PEA") announced on August 19, 2026”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The technical report was prepared in accordance with NI 43-101 standards.
Evidence · text
“National Instrument 43-101 Technical Report dated October 2nd, 2026”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Resource Estimates (2)
indicatedOmai Gold Project · goldTonnes: 38100000Grade: 2.04Grade Unit: g/tContained Metal: 2.5Contained Unit: mozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Omai Gold Project
- Commodity
- gold
- Region
- guyana
- Reported Region
- Guyana
- Ticker
- OMG
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- David M. Robson, Goran Andric, Jeff Sepp, Linda Dufour, Stephan Theben, Alan J. San Martin, Elaine Ellingham
- Resource group id
- resource:91cdf1b78298f98b5305
- Deposit or zone
- Omai Gold Project
- Resource basis
- attributable
Resource Data
- Category
- indicated
- Tonnes
- 38100000
- Grade
- 2.04
- Grade Unit
- g/t
- Contained Metal
- 2.5
- Contained Unit
- moz
Prior Estimate
- Resource Date
- 2026-04-14
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-04-14T00:00:00.000Z
Dates
- Event date
- 2026-10-05T00:00:00.000Z
Reasoning: This is a restatement of the April 14, 2026 resource estimate used as the basis for the PEA.
Positive factors
- Solid Indicated grade of 2.04 g/t
Evidence · text
“2.5 million ounces of gold ("Au") projected life-of-mine ("LOM") payable production over 18 years... This PEA is based on a Mineral Resource Estimate of 2.5 million ounces Indicated averaging 2.04 g/t Au in 38.1 million tonnes”
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
QP/CP Signedpositive
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: qp_signed is true
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredOmai Gold Project · goldTonnes: 106600000Grade: 1.59Grade Unit: g/tContained Metal: 5.5Contained Unit: mozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Omai Gold Project
- Commodity
- gold
- Region
- guyana
- Reported Region
- Guyana
- Ticker
- OMG
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- David M. Robson, Goran Andric, Jeff Sepp, Linda Dufour, Stephan Theben, Alan J. San Martin, Elaine Ellingham
- Resource group id
- resource:7e00ced5a8eaac19db9a
- Deposit or zone
- Omai Gold Project
- Resource basis
- attributable
Resource Data
- Category
- inferred
- Tonnes
- 106600000
- Grade
- 1.59
- Grade Unit
- g/t
- Contained Metal
- 5.5
- Contained Unit
- moz
Prior Estimate
- Resource Date
- 2026-04-14
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-04-14T00:00:00.000Z
Dates
- Event date
- 2026-10-05T00:00:00.000Z
Reasoning: Restatement of the April 14, 2026 resource estimate.
Positive factors
- Large scale inferred resource
Negative factors
- Inferred category implies higher geological risk
Evidence · text
“5.5 million ounces of gold ("Au") projected life-of-mine ("LOM") payable production over 18 years... 5.5 million ounces Inferred averaging 1.59 g/t Au in 106.6 million tonnes”
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
QP/CP Signedpositive
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: qp_signed is true
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
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.