# Alamos Gold Announces Island Gold District Expansion to 20,000 TPD, Creating One of Canada's Largest and Lowest Cost Gold Mines with Attractive Economics, including 69% After-Tax IRR and $12.2 Billion NPV at $4,500/oz Gold Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632 Original source: https://money.tmx.com/en/quote/AGI/news/4880790603969468/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one- Publisher: tmx Original announcement: 2026-02-04T00:38:05.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Alamos Gold Inc. - Ticker: AGI - Exchange: TSX - Region: Ontario, Canada - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Resource update, Production - Extracted: 2026-08-21 02:41:49 UTC Narrative sentiment: 0.90 · Bullish ## Minestarters Atlas summary Alamos Gold announced highly positive results from its Island Gold District Expansion Study, projecting a 27% increase in average annual gold production to 534,000 ounces and a 30% increase in Mineral Reserves to 8.3 million ounces. The study highlights attractive economics with a 69% after-tax IRR and a $12.2 billion NPV at $4,500/oz gold, underpinned by a 19-year mine life and low operating costs. While overall contained metal and production are significantly up, the average gold grades for both reserves and resources have seen a decline compared to previous estimates. Reasoning: Alamos Gold's Island Gold District Expansion Study projects a substantial increase in gold production and Mineral Reserves, supported by strong economic metrics and a long mine life, although average grades have seen a decline. - Positive factor: Significant increase in Mineral Reserves \(30% to 8.3 Moz\) - Positive factor: Substantial increase in average annual gold production \(27% to 534 koz/year\) - Positive factor: Highly attractive economics with 69% after-tax IRR and $12.2 billion NPV at $4,500/oz gold - Positive factor: Long mine life of 19 years with low operating costs - Positive factor: Expansion largely de-risked with key permits in place and self-financing growth - Negative factor: Average gold grade for overall district reserves and resources has declined compared to prior estimates Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 22 ## Classification and evidence **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document reports updated Mineral Reserves and Resources for the Island Gold District. Evidence · text > Alamos Gold Announces Island Gold District Expansion to 20,000 TPD, Creating One of Canada's Largest and Lowest Cost Gold Mines with Attractive Economics, including 69% After-Tax IRR and $12.2 Billion NPV at $4,500/oz Gold **Production** Polarity: neutral Story-specific tag Definition: No canonical definition is currently available. Why it applies: The document provides detailed production forecasts, operating costs, and economic analysis for the expanded operation. Evidence · text > Increased production: average annual production of 534,000 ounces over 10 years post expansion \(2028+\) **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports Proven Gold Mineral Reserves for Island Gold, Magino, and the overall district. Evidence · table > Proven Context: Island Gold **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports Probable Gold Mineral Reserves for Island Gold, Magino, and the overall district. Evidence · table > Probable Context: Island Gold **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: The document reports Measured Gold Mineral Resources for Island Gold, Magino, and the overall district. Evidence · table > Measured Context: Measured and Indicated Gold Mineral Resources \(exclusive of Mineral Reserves\) Island Gold **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: The document reports Indicated Gold Mineral Resources for Island Gold, Magino, and the overall district. Evidence · table > Indicated Context: Measured and Indicated Gold Mineral Resources \(exclusive of Mineral Reserves\) Island Gold **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The document reports Inferred Gold Mineral Resources for Island Gold, Magino, and the overall district. Evidence · table > Inferred Gold Mineral Resources \(exclusive of Mineral Reserves\) Context: Inferred Gold Mineral Resources \(exclusive of Mineral Reserves\) **Category Upgrade** Polarity: positive Definition: Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal. Why it applies: The increase in Mineral Reserves was driven by a successful delineation drilling program focused on converting Mineral Resources to Mineral Reserves. Evidence · text > The increase was driven by a successful delineation drilling program completed at both the Island Gold underground and Magino open pit deposits with the focus on converting a large portion of Mineral Resource base into Mineral Reserves. **Tonnage Growth** Polarity: positive Definition: Significant tonnage increase \(≥15%\) vs prior estimate with grade maintained or improved. Why it applies: Total Proven and Probable Mineral Reserves increased by 45% to 128.2 million tonnes. Evidence · table > 45% Context: 128,212 **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: Total Proven and Probable Mineral Reserves increased by 30% to 8.3 million ounces. Evidence · text > 30% increase in Mineral Reserves to 8.3 million ounces **QP/CP Signed** Polarity: positive Definition: 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: Francis McCann, P.Eng, Nathan Bourgeault, P.Eng., Jeffrey Volk, CPG, FAusIMM, and Tyler Poulin, P. Geo. are named as Qualified Persons for the estimates. Evidence · text > Francis McCann, P.Eng, Director - Technical Services is the Qualified Person for Magino’s Mineral Reserve estimate. **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: Mineral Reserves and Resources are reported consistent with CIM Definition Standards and NI 43-101. Evidence · text > Mineral Reserves reported are consistent with the CIM Definition Standards for Mineral Resources and Mineral Reserves Mineral Reserves are reported to a cut-off grade of 3.78 Au g/t at Island Gold and 0.30 Au g/t for Magino **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: Cut-off grades for Mineral Reserves \(3.78 g/t Au for Island Gold, 0.30 g/t Au for Magino\) and Resources \(3.36 g/t for Island Gold, 0.28 g/t Au for Magino\) are explicitly stated. Evidence · text > Mineral Reserves are reported to a cut-off grade of 3.78 Au g/t at Island Gold and 0.30 Au g/t for Magino **Grade Decline** Polarity: negative Definition: Average grade dropped >5% vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling. Why it applies: The average gold grade for the Island Gold District Proven and Probable reserves declined by 10% \(2.01 g/t Au vs 2.23 g/t Au\) and Measured and Indicated resources declined by 22% \(1.07 g/t Au vs 1.38 g/t Au\) compared to prior estimates. Evidence · table > -10% Context: 2.01 **High Production** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: Average annual gold production is projected to increase to 534,000 ounces over 10 years post-expansion, a 27% increase. Evidence · text > average annual production of 534,000 ounces over 10 years post expansion \(2028+\), a 27% increase from the Base Case LOM **Low Operating Costs** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: Average mine-site AISC is projected at $1,025 per ounce over 10 years, representing a 31% decrease from 2025 levels. Evidence · text > average mine-site AISC of $1,025 per ounce over the initial 10 years post expansion \(2028+\), a decrease of approximately 31% from 2025 **Long Mine Life** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: The expansion study projects a 19-year mine life, similar to the previous Base Case LOM. Evidence · table > 19 Context: Mine life \(years\) **High NPV** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: The project has an after-tax NPV \(5%\) of $12.2 billion at a gold price of $4,500 per ounce. Evidence · text > After-tax NPV \(5%\) of $12.2 billion and an after-tax IRR of 69% at a gold price of $4,500 per ounce **High IRR** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: The project has an after-tax IRR of 69% at a gold price of $4,500 per ounce. Evidence · text > After-tax NPV \(5%\) of $12.2 billion and an after-tax IRR of 69% at a gold price of $4,500 per ounce **Mill Expansion** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: The study incorporates an expansion of the Magino mill to 20,000 tonnes per day. Evidence · text > expansion of the Magino mill to 20,000 tonnes per day \(“tpd”\) **Permitting Secured** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: The Magino mill is federally permitted to operate at 35,000 tpd, well above the planned expansion rate, and the TMF is permitted for 150 Mt. Evidence · text > Magino mill federally permitted to operate at 35,000 tpd ## Extracted facts Stored fact records: 22. Some facts used in scoring do not have a stored record. ## Resource Estimates (22) ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-0) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: proven - Tonnes: 1123000 - Grade: 11.5 - Grade Unit: g/t Au - Contained Metal: 415000 - Contained Unit: oz - Cutoff Grade: 3.78 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: High-grade Proven reserve for Island Gold, contributing significantly to the overall reserve increase. - Positive factor: High grade - Positive factor: Proven category - Positive factor: Significant contained metal Evidence · table > 11.50 Context: 1,123 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-1) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: probable - Tonnes: 13949000 - Grade: 10.54 - Grade Unit: g/t Au - Contained Metal: 4726000 - Contained Unit: oz - Cutoff Grade: 3.78 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Large, high-grade Probable reserve for Island Gold, forming a major part of the reserve increase. - Positive factor: High grade - Positive factor: Large contained metal - Positive factor: Probable category Evidence · table > 10.54 Context: 13,949 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-2) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: probable - Tonnes: 15072000 - Grade: 10.61 - Grade Unit: g/t Au - Contained Metal: 5141000 - Contained Unit: oz - Cutoff Grade: 3.78 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for Island Gold shows significant contained metal, despite a slight grade decline. - Positive factor: High grade - Positive factor: Large contained metal - Positive factor: Combined Proven and Probable category - Negative factor: Slight grade decline compared to prior estimate Evidence · table > 10.61 Context: 15,072 ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-3) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: proven - Tonnes: 42437000 - Grade: 0.8 - Grade Unit: g/t Au - Contained Metal: 1097000 - Contained Unit: oz - Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Large tonnage Proven reserve for Magino, contributing to overall reserve growth. - Positive factor: Large tonnage - Positive factor: Proven category - Positive factor: Significant contained metal - Negative factor: Lower grade compared to Island Gold Evidence · table > 0.80 Context: 42,437 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-4) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: probable - Tonnes: 70704000 - Grade: 0.9 - Grade Unit: g/t Au - Contained Metal: 2044000 - Contained Unit: oz - Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Large tonnage Probable reserve for Magino, contributing to overall reserve growth. - Positive factor: Large tonnage - Positive factor: Probable category - Positive factor: Significant contained metal - Negative factor: Lower grade compared to Island Gold Evidence · table > 0.90 Context: 70,704 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-5) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: probable - Tonnes: 113141000 - Grade: 0.86 - Grade Unit: g/t Au - Contained Metal: 3141000 - Contained Unit: oz - Cutoff Grade: 0.3 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for Magino shows very large tonnage and contained metal, but with a grade decline. - Positive factor: Very large tonnage - Positive factor: Combined Proven and Probable category - Positive factor: Significant contained metal - Negative factor: Lower grade compared to Island Gold - Negative factor: Grade decline compared to prior estimate Evidence · table > 0.86 Context: 113,141 ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-6) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: proven - Tonnes: 43559000 - Grade: 1.08 - Grade Unit: g/t Au - Contained Metal: 1512000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined district Proven reserve shows significant contained metal, but with a notable grade decline. - Positive factor: Large tonnage - Positive factor: Proven category - Positive factor: Significant contained metal - Negative factor: Grade decline compared to prior estimate Evidence · table > 1.08 Context: 43,559 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-7) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: probable - Tonnes: 84653000 - Grade: 2.49 - Grade Unit: g/t Au - Contained Metal: 6769000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined district Probable reserve shows very large contained metal, despite a slight grade decline. - Positive factor: Very large tonnage - Positive factor: Probable category - Positive factor: Significant contained metal - Negative factor: Slight grade decline compared to prior estimate Evidence · table > 2.49 Context: 84,653 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-8) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: probable - Tonnes: 128212000 - Grade: 2.01 - Grade Unit: g/t Au - Contained Metal: 8282000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Overall district Proven and Probable reserve shows a substantial increase in contained metal and tonnage, but with a notable grade decline. - Positive factor: Very large contained metal - Positive factor: Combined Proven and Probable category - Positive factor: Significant tonnage growth - Negative factor: Grade decline compared to prior estimate Evidence · table > 2.01 Context: 128,212 ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-9) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: measured - Tonnes: 329000 - Grade: 11.19 - Grade Unit: g/t Au - Contained Metal: 118000 - Contained Unit: oz - Cutoff Grade: 3.36 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: High-grade Measured resource for Island Gold, but shows a significant decline in both grade and contained metal. - Positive factor: High grade - Positive factor: Measured category - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 11.19 Context: 329 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-10) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: indicated - Tonnes: 1764000 - Grade: 8.32 - Grade Unit: g/t Au - Contained Metal: 472000 - Contained Unit: oz - Cutoff Grade: 3.36 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: High-grade Indicated resource for Island Gold, but shows a significant decline in both grade and contained metal. - Positive factor: High grade - Positive factor: Indicated category - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 8.32 Context: 1,764 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-11) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: indicated - Tonnes: 2093000 - Grade: 8.77 - Grade Unit: g/t Au - Contained Metal: 590000 - Contained Unit: oz - Cutoff Grade: 3.36 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined Measured and Indicated resource for Island Gold shows high grade, but with significant declines in grade and contained metal. - Positive factor: High grade - Positive factor: Combined Measured and Indicated category - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 8.77 Context: 2,093 ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-12) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: measured - Tonnes: 6714000 - Grade: 0.7 - Grade Unit: g/t Au - Contained Metal: 151000 - Contained Unit: oz - Cutoff Grade: 0.28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Measured resource for Magino shows tonnage growth but a decline in grade. - Positive factor: Measured category - Positive factor: Tonnage growth - Negative factor: Grade decline compared to prior estimate Evidence · table > 0.70 Context: 6,714 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-13) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: indicated - Tonnes: 50084000 - Grade: 0.8 - Grade Unit: g/t Au - Contained Metal: 1288000 - Contained Unit: oz - Cutoff Grade: 0.28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Indicated resource for Magino shows declines in both grade and contained metal. - Positive factor: Indicated category - Negative factor: Grade decline compared to prior estimate - Negative factor: Contained metal decline compared to prior estimate Evidence · table > 0.80 Context: 50,084 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-14) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: indicated - Tonnes: 56798000 - Grade: 0.79 - Grade Unit: g/t Au - Contained Metal: 1439000 - Contained Unit: oz - Cutoff Grade: 0.28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined Measured and Indicated resource for Magino shows declines in both grade and contained metal. - Positive factor: Combined Measured and Indicated category - Negative factor: Grade decline compared to prior estimate - Negative factor: Contained metal decline compared to prior estimate Evidence · table > 0.79 Context: 56,798 ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-15) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: measured - Tonnes: 7042000 - Grade: 1.19 - Grade Unit: g/t Au - Contained Metal: 270000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined district Measured resource shows tonnage growth but significant declines in grade and contained metal. - Positive factor: Measured category - Positive factor: Tonnage growth - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 1.19 Context: 7,042 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-16) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: indicated - Tonnes: 51848000 - Grade: 1.056 - Grade Unit: g/t Au - Contained Metal: 1760000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined district Indicated resource shows significant declines in both grade and contained metal. - Positive factor: Indicated category - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 1.056 Context: 51,848 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-17) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: indicated - Tonnes: 58891000 - Grade: 1.07 - Grade Unit: g/t Au - Contained Metal: 2029000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined district Measured and Indicated resource shows significant declines in both grade and contained metal. - Positive factor: Combined Measured and Indicated category - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 1.07 Context: 58,891 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-18) Island Gold · gold #### Identity - Project: Island Gold - Commodity: gold - Ticker: AGI #### Resource Data - Category: inferred - Tonnes: 2867000 - Grade: 11.51 - Grade Unit: g/t Au - Contained Metal: 1061000 - Contained Unit: oz - Cutoff Grade: 3.36 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: High-grade Inferred resource for Island Gold, but shows significant declines in both grade and contained metal. - Positive factor: High grade - Positive factor: Inferred category - Negative factor: Significant grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 11.51 Context: 2,867 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-19) Magino · gold #### Identity - Project: Magino - Commodity: gold - Ticker: AGI #### Resource Data - Category: inferred - Tonnes: 14045000 - Grade: 0.75 - Grade Unit: g/t Au - Contained Metal: 338000 - Contained Unit: oz - Cutoff Grade: 0.28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Inferred resource for Magino shows significant declines in tonnage, grade, and contained metal. - Positive factor: Inferred category - Negative factor: Significant tonnage decline compared to prior estimate - Negative factor: Grade decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 0.75 Context: 14,045 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-20) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Resource Data - Category: inferred - Tonnes: 16912000 - Grade: 2.57 - Grade Unit: g/t Au - Contained Metal: 1398000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: Combined district Inferred resource shows significant declines in tonnage and contained metal, despite a grade increase. - Positive factor: Inferred category - Negative factor: Significant tonnage decline compared to prior estimate - Negative factor: Significant contained metal decline compared to prior estimate Evidence · table > 2.57 Context: 16,912 ### Fact 22 [Link to this fact](https://atlas-staging.minestarters.com/news/alamos-gold-announces-island-gold-district-expansion-to-20-000-tpd-creating-one--38d24a26-71be-4cf7-9951-2aa48cee3632#fact-resource-facts-21) Island Gold District · gold #### Identity - Project: Island Gold District - Commodity: gold - Ticker: AGI #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-02-04T00:00:00.000Z Reasoning: The IGD Expansion Study projects excellent production metrics and highly attractive economics, positioning the project as a major gold producer. - Positive factor: High total gold production - Positive factor: Long mine life - Positive factor: High average annual production - Positive factor: High mill throughput - Positive factor: High average recovery - Positive factor: Low mine-site AISC - Positive factor: Low total cash cost - Positive factor: High after-tax IRR - Positive factor: High after-tax NPV Evidence · table > 7,963 Context: Total gold production \(000 ounces\) ## 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.