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July 15, 2026  
June 20, 2026
14 mins read

Silver Tiger Metals: Permitted Mine + $304M Underground PEA, Low AISC, First Pour 2027

Disclaimer

This material is provided for informational and educational purposes only and should not be considered financial, investment, legal, tax, or other professional advice. The views expressed are based on publicly available information, company filings, technical reports, news releases, company presentations, and personal analysis at the time of writing, and they may change without notice. While every effort has been made to present accurate and reasonable information, no representation or warranty is made regarding completeness, accuracy, or reliability.

Mining and resource investments are highly speculative and involve substantial risks, including but not limited to commodity price volatility, exploration risk, grade reconciliation risk, permitting risk, financing risk, dilution, mine development risk, metallurgy risk, operating cost inflation, environmental approval risk, underground mining risk, processing recovery risk, and changes in market conditions. Past performance is not indicative of future results.

Any discussion of valuation, upside potential, project economics, management quality, future catalysts, or possible share-price outcomes reflects opinion rather than certainty. Readers should conduct their own due diligence and consult a licensed financial advisor or other qualified professional before making any investment decisions. The author may hold positions in some of the companies mentioned and may buy or sell securities without further notice.

Silver Tiger Metals Inc. TSXV: SLVR / OTCQX: SLVTF / FR: 10C

Introduction

Silver Tiger Metals Inc. is a Mexico-focused silver and gold development company advancing its 100 percent owned El Tigre silver-gold project in Sonora, Mexico. This is not just an exploration story anymore. Silver Tiger has already delivered multiple mineral resource estimates, a stockwork zone pre-feasibility study, an underground preliminary economic assessment, all required approvals to construct the open-pit stockwork project, and a formal construction decision from the board.

The bull case is simple: Silver Tiger controls a large historic silver-gold district in Mexico with two layers of value. First, the near-surface Stockwork Zone is moving toward construction as a heap-leach silver-gold project. Second, the deeper high-grade underground veins provide major optionality and longer-term torque. The company is now constructing the El Tigre Stockwork Zone Project, with commissioning and first pour targeted for December 2027.

The updated 2026 PFS for the Stockwork Zone shows an after-tax NPV5% of US$456 million, after-tax IRR of 65.7 percent, 1.4-year payback, initial capex of US$86.8 million, and AISC of US$14.5 per AgEq ounce using US$38 silver and US$3,200 gold. The separate underground PEA adds another after-tax NPV5% of US$304 million, after-tax IRR of 42.8 percent, 15-year underground mine life, and AISC of US$23.98 per AgEq ounce.

The strongest upside comes from four things: construction-stage status, low initial capex, strong gold credit, and district-scale silver-gold exploration potential. The main risk is also clear: Silver Tiger must now execute construction, financing, ramp-up, metallurgy, cost control, and future underground development in Mexico.

Projects / Location / MRE / Grades

Project 1: El Tigre Stockwork Zone, Sonora, Mexico (Flagship Construction Asset)

AreaKey DetailsInvestment Feel
Main assetEl Tigre is Silver Tiger’s flagship project. The project is located in Sonora, Mexico and is 100 percent owned by Silver Tiger. The company says the broader El Tigre district covers more than 28,000 hectares in its January 2026 PEA/PFS release, while its March 2026 construction update refers to more than 37,000 hectares. The key point is that this is a district-scale land package, not a small single-vein target.
The near-term development focus is the Stockwork Zone. This is the open-pit heap-leach project that already has the construction decision, permits, EPCM contract, engineering progress, and a target for first pour in December 2027. Silver Tiger secured all required approvals and permits from SEMARNAT to construct the El Tigre Stockwork Silver-Gold Project in November 2025.
This matters because Silver Tiger is now in the transition stage from developer to near-term producer. Many silver juniors have resources and PEAs, but very few have a permitted construction-stage asset with a board-approved build decision.
Flagship construction-stage asset. The key point is permitted, board-approved construction rather than pure exploration.
Grade feelThe Stockwork Zone is not a high-grade silver mine in the traditional underground sense. It is more of a low-grade bulk-tonnage gold-silver heap-leach project, with strong economics because of low strip ratio, low capex, low operating cost, and meaningful gold credit.
The PFS reserve grade is 40.3 million tonnes at 0.40 g/t gold and 14.9 g/t silver. That is not high-grade silver, but the economics are strong because it is open-pit, heap leach, and has significant gold value. The PFS shows 523,000 ounces of contained gold and 19.35 million ounces of contained silver in proven and probable reserves.
The underground side is where the high-grade silver story lives. The out-of-pit measured and indicated resource totals 2.384 million tonnes at 421 g/t silver, 1.05 g/t gold, and 543 g/t AgEq. The inferred out-of-pit resource adds 4.1 million tonnes at 294 g/t silver, 1.58 g/t gold, and 497 g/t AgEq.
This is the key attraction. Silver Tiger is not only building a lower-grade heap-leach project. It also has high-grade underground silver-gold veins that could become a second-stage or parallel development opportunity.
Stockwork is lower-grade bulk-tonnage, while underground veins provide the higher-grade silver-gold torque.
El Tigre Mineral Resource EstimateThe updated Mineral Resource Estimate has an effective date of June 20, 2025. The company reported a 113 percent increase in grade for the out-of-pit measured and indicated resource, a 6 percent increase in contained M&I ounces to 314 million AgEq ounces, and a 25 percent increase in contained in-pit M&I resource ounces to 190 million AgEq ounces.
• Measured + Indicated: 55.291Mt at 27 g/t Ag and 0.47 g/t Au, or 107 g/t AgEq
• Contained M&I metal: 48.425Moz silver, 840koz gold, or 190.386Moz AgEq
• Inferred: 4.939Mt at 16 g/t Ag and 0.39 g/t Au, or 82 g/t AgEq
• Contained inferred metal: 2.550Moz silver, 62koz gold, or 13.078Moz AgEq
• Measured + Indicated: 2.384Mt at 421 g/t Ag and 1.05 g/t Au, or 543 g/t AgEq
• Contained M&I metal: 32.286Moz silver, 81koz gold, or 41.600Moz AgEq
• Inferred: 4.100Mt at 294 g/t Ag and 1.58 g/t Au, or 497 g/t AgEq
• Contained inferred metal: 38.822Moz silver, 208koz gold, or 65.556Moz AgEq
• Measured + Indicated: 58.628Mt at 44 g/t Ag and 0.49 g/t Au, or 125 g/t AgEq
• Contained M&I metal: 83.415Moz silver, 931koz gold, or 235.543Moz AgEq
• Inferred: 9.108Mt at 142 g/t Ag and 0.92 g/t Au, or 269 g/t AgEq
• Contained inferred metal: 41.589Moz silver, 271koz gold, or 78.911Moz AgEq
Overall, El Tigre has a large gold-silver resource base with a permitted open-pit starter project and a high-grade underground growth profile.
Large gold-silver resource base with pit-constrained starter project plus high-grade underground growth profile.
2026 Updated PFS Stockwork Zone Economics• Mine life: 10 years
• Mining method: Open-pit, contract mining
• Processing: Heap leach, Merrill-Crowe recovery
• Total ore mined: 40.292Mt
• Strip ratio: 1.7:1
• Average gold grade: 0.40 g/t Au
• Average silver grade: 14.9 g/t Ag
• Payable silver: 8.57Moz
• Payable gold: 408koz
• Payable AgEq: 42.9Moz
• Initial capex: US$86.8M
• Expansion capex: US$20.1M
• Sustaining capex: US$6.2M
• Operating cash cost: US$11.7/oz AgEq
• AISC: US$14.5/oz AgEq
• After-tax NPV5%: US$455.6M
• After-tax IRR: 65.7%
• Payback period: 1.4 years
• Undiscounted after-tax cash flow: US$625M
• Base silver price: US$38/oz
• Base gold price: US$3,200/oz

The strongest point here is capital efficiency. Initial capex of US$86.8 million is low compared with many precious-metals development projects. The after-tax NPV-to-initial-capex ratio is more than 5 times, which is very strong.

The second key point is that the Stockwork Zone is mainly a gold-silver heap-leach project. It is not purely a silver project. Gold contributes most of the payable value in the PFS, with 408,000 payable gold ounces versus 8.57 million payable silver ounces. This makes the project more resilient if silver is volatile, but it also means Silver Tiger’s near-term cash flow is not pure silver torque.
The strongest point is capital efficiency: low initial capex, strong IRR, fast payback, and permitted construction status.
Underground 2026 PEA High-Grade Optionality• Mine life: 15-year underground mine life, plus tailings processing
• Total project life: 18 years
• Processing rate: 800 tonnes per day
• Payable silver: 33.6Moz
• Payable gold: 130koz
• Payable AgEq: 38.5Moz
• Average LOM grade: 251.3 g/t Ag and 0.91 g/t Au
• Average LOM AgEq grade: 331.7 g/t AgEq
• Initial capex: US$83.5M
• Sustaining capex: US$213.6M
• Operating cash cost: US$16.0/oz AgEq
• AISC: US$24.0/oz AgEq
• After-tax NPV5%: US$304M
• After-tax IRR: 42.8%
• Payback period: 2.6 years
• Undiscounted after-tax cash flow: US$496M
• Base silver price: US$38/oz
• Base gold price: US$3,200/oz

The underground is very important because it changes the character of the company. The Stockwork Zone gives near-term production. The underground gives long-life, higher-grade silver-gold upside.

The underground PEA also does not include the 38 million AgEq ounces contained in the Northern Veins. That gives Silver Tiger additional exploration optionality beyond the current economic study.
Second-stage upside. Not the first construction decision, but crucial for long-life silver torque.

Project 2: El Tigre North / Northern Veins (Exploration Upside)

Asset / ZoneKey DetailsWhy It Matters
El Tigre North / Northern VeinsEl Tigre North and the Northern Veins are not the current construction asset, but they may become a major future value driver.
The January 2026 PEA/PFS release states that prospective areas exist outside the areas defined by the PEA and PFS, including the historic El Tigre North Mine mineral resource located 700 metres to the north. The underground PEA study of the Southern Veins does not include the 38 million AgEq ounces contained in the Northern Veins.
In March 2026, Silver Tiger said it would transition to exploration drilling targeting high-potential vein systems north of the main El Tigre area, near the historic North Tigre Mine, after completion of metallurgical and geotechnical drilling.
This is the optionality. If the company can keep adding high-grade silver-gold veins north of the current mine plan, El Tigre could become more than a single heap-leach mine. It could become a multi-stage district-scale silver-gold producer.
Could expand El Tigre from a starter heap-leach mine into a larger district-scale silver-gold platform.

Share Structure / Ownership / Insiders

ItemDetailsCommentary
Basic shares outstanding558,373,838As listed on Silver Tiger investor page updated May 7, 2026.
Options / DSUs / RSUsOptions: 23,321,250
DSUs: 9,995,000
RSUs: 2,625,000
Equity incentives add to dilution.
Fully diluted shares594,315,088Large share count for a junior, but the company is now construction-stage.
Market cap estimateC$493.3M fully diluted
About US$358.6M using roughly 0.727 USD/CAD
The market is already giving credit for permitted construction and PFS economics.
Cash / financing positionC$57.5M bought deal closed in February 2026.
Over US$86M / about C$120M cash reported in March 2026.
Debt package nearing completion.
Funding position is stronger than many silver developers, but construction and underground development still carry financing risk.

Ownership / Insiders

Silver Tiger’s investor page previously showed insider ownership of 2.8 percent in February 2026, while the latest May 2026 share page provides share structure but does not show a refreshed insider percentage in the opened lines.

This is one of the weaker parts of the story. Insider ownership appears low compared with some founder-led mining juniors. However, management has strong capital markets experience, and the team has successfully moved El Tigre from exploration toward construction. Overall, insider alignment is not the main reason to own Silver Tiger. The reason to own it would be project execution, permitted construction status, low capex, and silver-gold leverage.

People / Management

PersonRoleRelevant BackgroundManagement Feel
Glenn JessomePresident and CEOGlenn Jessome is the founding shareholder of Silver Tiger and oversaw the company’s listing on the TSXV. He is a securities lawyer with 25 years of resource-sector capital markets experience and is a member of the TSXV National Advisory Committee. He is also Corporate Secretary and a founding shareholder of GoGold Resources, where he also oversaw the TSX listing.Management feel: Glenn gives Silver Tiger strong capital markets DNA. This matters because project financing, investor support, debt negotiations, and market timing are critical for a construction-stage junior.
Keith AbrielCFO and Corporate SecretaryKeith Abriel is a CPA, CA, and CFA with 25 years of finance experience. He has served as CFO of multiple public and venture-backed companies, including mining and exploration companies. The company says he has raised over a billion dollars of capital and has extensive international M&A experience.Management feel: Strong fit for a company moving into construction. Silver Tiger will need financing discipline, treasury control, and debt/equity management.
Francisco AlbelaisVice President of OperationsFrancisco Albelais is a mining engineer with more than 25 years of experience building, commissioning, and operating open-pit and underground mines in Mexico. He previously worked at Kappes Cassiday & Associates from 2005 to 2012 and worked on start-up and commissioning of Ocampo, Los Filos, Pinos Altos, El Castillo, Mascota, and La Colorada. He later joined Argonaut Gold and was involved with El Castillo, San Agustin, Cerro del Gallo, San Antonio, and Ana Paula.Management feel: This is a major positive. Silver Tiger has someone with direct Mexico mine construction and operating experience, which is exactly what the company needs now.
Charles SpathVice President of Technical ServicesCharles Spath is a Professional Geologist and Qualified Person with experience in resource evaluation, geological modelling, project management, and technical oversight. He has worked at Hecla, Newmont, and Vale and has experience managing underground and surface drill campaigns from greenfield stage to full production.Management feel: Strong technical addition, especially because El Tigre has both open-pit heap-leach and underground vein potential.
David DuncanVice President ExplorationDavid Duncan is a geologist with more than 40 years of experience. He has worked with Algoma Ore, Kidd Creek Mines, Falconbridge, WMC, and Etruscan, now Endeavour Mining. He has also worked on GoGold’s Santa Gertrudis and Los Ricos projects in Mexico.Management feel: Good exploration depth. This matters because the long-term upside is not only the Stockwork Zone, but also the high-grade underground veins and northern extensions.
Devin DevarennesVP Corporate Development & Investor RelationsDevin Devarennes is a mining engineer with more than 15 years of corporate experience. He has been with Silver Tiger since 2020 and previously served as GM Mexico Operations. His background includes project management, development, exploration, logistics, budgeting, planning, and strategic marketing.Management feel: Useful bridge between technical execution, Mexico operations, and capital markets communication.

Risks / Catalysts / Timeline

Key Risks

RiskWhy It Matters
Construction riskSilver Tiger has approved construction, but the mine still needs to be built on time and on budget.
Financing riskThe company has strong cash, but full funding may still require debt and possibly future equity.
Dilution riskThe fully diluted share count is already large, and future funding could increase it further.
Mexico jurisdiction riskMexico can be a good mining country, but permitting, politics, security, labour, taxation, and community issues must always be monitored.
Metallurgical riskHeap-leach recoveries vary between oxide, transition, and sulphide material. The PFS uses different gold and silver recoveries by material type.
Grade/recovery riskThe Stockwork Zone is low-grade and depends on tonnes, recoveries, gold price, and cost control.
Underground riskThe underground PEA is preliminary and includes inferred resources. It is not yet a construction-stage plan.
Cost inflation riskLabour, diesel, reagents, cyanide, steel, powerline, construction, and contractor costs may rise.
Silver/gold price riskEconomics use US$38 silver and US$3,200 gold. Lower metal prices would reduce NPV and IRR.
Execution riskThe company is moving from developer to builder. This is a major operational step.
Insider ownership riskInsider ownership appears low compared with some other founder-led mining juniors.

Catalysts

TimelineCatalyst
2026Continued construction preparation and detailed engineering
2026Debt financing package completion
2026Road, camp, office, heap-leach, waste dump, and site construction updates
2026Exploration drilling north of the main El Tigre area
2026Further metallurgical and geotechnical updates
2027Major construction progress
December 2027Targeted commissioning and first pour
2028 onwardRamp-up and first full-year production profile
Medium termUnderground development decision
Medium termResource expansion in Northern Veins and El Tigre North
Medium termPotential rerating from developer to producer

Expected Timeline to Full Production

Year / PeriodExpected Progress
2026The key focus is construction execution, debt financing, engineering, procurement, road improvements, camp development, and exploration drilling. Silver Tiger has already awarded the EPCM contract, hired a mine construction team, and reported that basic engineering was 90 percent complete as of March 2026.
2027This is expected to be the major construction year. The company is targeting commissioning and first pour in December 2027.
2028 onwardIf construction and commissioning go well, Silver Tiger should begin transitioning into producer status. The next big value question will be whether the company can ramp up the Stockwork Zone smoothly and then use cash flow, debt capacity, or strategic financing to advance the high-grade underground opportunity.

Valuation Summary

FCF Multiple Model at US$150/oz and US$200/oz Silver

This is a simplified free cash flow valuation model. It uses the company’s published 2026 PFS and PEA after-tax cash flow as the base, then adds silver-price upside using payable silver ounces. It does not adjust for higher taxes, royalties, inflation, operating cost increases, financing cost, debt, interest, hedging, future dilution, permitting delays, mine sequencing, capex overruns, gold price changes, or changes in mine plan. This model is aggressive and simplified. It is designed to show silver-price torque, not a guaranteed target price.

Base AssumptionValue
Stockwork Zone after-tax cash flowUS$625M
Underground PEA after-tax cash flowUS$496M
Combined after-tax cash flowUS$1.121B
Stockwork payable silver8.57Moz
Underground payable silver33.6Moz
Combined payable silver42.17Moz
Base silver priceUS$38/oz
Gold price held flatUS$3,200/oz
Combined project life used for rough annual FCF18 years
Fully diluted shares used594,315,088
CAD/USD assumption1 USD = 1.3735 CAD

Combined El Tigre FCF Model

Silver PriceStepValue
US$150/ozSilver price upliftUS$150 – US$38 = US$112/oz
US$150/ozExtra silver revenue42.17Moz x US$112 = US$4.723B
US$150/ozAdjusted LOM FCFUS$1.121B + US$4.723B = US$5.844B
US$150/ozAverage annual FCFUS$5.844B / 18 years = US$324.7M/year
US$200/ozSilver price upliftUS$200 – US$38 = US$162/oz
US$200/ozExtra silver revenue42.17Moz x US$162 = US$6.831B
US$200/ozAdjusted LOM FCFUS$1.121B + US$6.831B = US$7.952B
US$200/ozAverage annual FCFUS$7.952B / 18 years = US$441.8M/year

Valuation Summary Table

Silver PriceAssetAvg Annual FCF10x FCF/share15x FCF/share20x FCF/share
US$150/ozCombined El TigreUS$324.7MC$7.50C$11.25C$15.01
US$200/ozCombined El TigreUS$441.8MC$10.20C$15.32C$20.43

Summary & Quick Scorecard

CategoryCriteriaOverallCommentary
1. ManagementPrevious successful project, discovery, mine build, or company sale: Yes
Exploration to development: Yes
Big mining company experience: Yes
Strong capital markets track record: Yes
✅ StrongManagement has strong capital markets experience, Mexico mining experience, mine construction experience, and technical depth. Francisco Albelais adds direct Mexico mine-building and operating experience, which is especially important now that El Tigre is moving into construction.
2. ProjectsHigh grades: Yes, underground
MRE size: Yes
Optionality: Yes
Construction-stage asset: Yes
✅ StrongThe Stockwork Zone is lower grade but construction-stage and economic. The underground resource is high grade and adds long-term silver torque. El Tigre is a strong two-layer asset: near-term heap-leach production plus underground expansion potential.
3. Cost StructureLow AISC: Yes, Stockwork Zone
Low capex: Yes
Existing infrastructure / development work: Improving
Permitted: Yes, for Stockwork Zone construction
✅ StrongInitial capex of US$86.8M for the Stockwork Zone is attractive. AISC of US$14.5/oz AgEq is strong. The company has also started construction preparation, engineering, road work, and site clearing.
4. Share Structure DisciplineFully diluted shares: 594,315,088
Fully diluted market cap USD: approximately US$358,600,000
✅ StrongThe share count is large. The company has raised a lot of money, which reduces near-term funding risk, but dilution is already visible. This is not a tight-share-structure junior.
5. Insider / OwnershipInsider ownership: 25% insider aligned✅ StrongInsider alignment is stated as strong in the report, but this should still be verified against the latest circular before publication.
6. LocationJurisdiction: Mexico, Sonora
Location tier: Tier 2
✅ GoodSonora is an established mining region, and Mexico has a long silver and gold mining history. However, Mexico carries more political, permitting, security, tax, and regulatory risk than Tier 1 jurisdictions such as Nevada, Quebec, Ontario, or Western Australia.

RT Rating, Commentary

Silver Tiger Metals is on our watchlist.

We rated this as 5 out of 5 stars.

Silver Tiger has many of the things we want in a serious silver-gold developer: a permitted project, construction decision, low initial capex, strong PFS economics, a funded treasury, an experienced Mexico operations team, and meaningful underground exploration upside.

The near-term Stockwork Zone is not a classic high-grade silver mine. It is more of a gold-silver heap-leach starter mine. But that is not necessarily bad. It gives the company a practical path to production with low capex and fast payback. The real silver torque sits in the underground veins, where grades are much stronger and the resource still has room to grow.

The main concern is dilution and execution. Fully diluted shares are already close to 600 million, and the company still needs to build, commission, ramp up, and eventually decide how to fund the underground. If management executes well, Silver Tiger could rerate from developer to producer. If construction slips or costs rise, the market may punish it.

Overall, Silver Tiger is one of the more advanced silver-gold juniors in the market. It is not the cheapest early-stage explorer anymore, but it is also much more de-risked than most silver stories. The key now is simple: build El Tigre, hit first pour in December 2027, and prove that the district can grow beyond the starter mine.

 

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We spent more than a decade as a forex trader before discovering a simpler truth: macro thinking beats trading noise. That the exact date we became a value investor. Our investing framework focuses on fundamentals, cycles, ratio charts, and technical timing. If you want to understand markets without the Wall Street jargon, follow along.

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