Koba Resources Tin Project in Queensland Delivers Exceptional 26.1% Grades

Exceptional Tin Grades Up to 26.1% Discovered at Koba Resources Queensland Project

Koba Resources Limited (ASX: KOB) has delivered game-changing exploration results from its Stannary Hills Tin-Tungsten Project in Queensland, with surface sampling returning exceptional tin grades up to 26.1%. The results confirm the presence of world-class tin mineralisation across multiple prospects and position the company for its inaugural drilling programme scheduled for late Q1 2026.

The reconnaissance rock chip sampling programme collected 51 samples across four high-priority prospects, with multiple samples exceeding the threshold for high-grade tin deposits. Beyond the standout 26.1% tin result, the company reported additional exceptional grades including 14.0%, 13.5%, 12.4%, and 9.0% tin.

These remarkable results from the Koba Resources tin project in Queensland coincide with strengthening tin market fundamentals. Furthermore, tin prices have surged over 25% during January 2026, building on the metal's 30% price appreciation throughout 2025.

Supply concerns surrounding Indonesian exports highlight the strategic nature of tin and the structural tightness in the global market. This creates a favourable backdrop for Australian tin projects approaching development phases.

"These are among the highest tin grades reported by any ASX-listed company in recent years, validating our focus on this highly prospective region ahead of our maiden drilling campaign," said Ben Vallerine, Managing Director & CEO.

Multiple High-Grade Prospects Confirm System-Scale Potential

The sampling programme targeted four distinct prospects within the Stannary Hills Project, each demonstrating unique characteristics that support a large-scale tin system. However, the results across all prospects indicate substantial resource potential at the Koba Resources tin project in Queensland.

Kitchener Prospect – The Historic Powerhouse

The Kitchener Trend represents the most productive area historically, spanning 5km of strike length with numerous legacy mines and high-grade drill intersections. Seven mines within a 1.3km section produced approximately 120,000 tonnes averaging 2.3% tin, with peak grades reaching 7.3% tin.

Recent sampling of 13 rock chips along the trend confirmed widespread outcropping mineralisation, including a standout result of 13.5% tin. In addition, additional grades of 4.9%, 2.9%, and 2.6% tin demonstrate the consistency of high-grade mineralisation across the entire 5km trend.

The historical production data provides strong validation for the economic potential of this trend. Moreover, the continuity of mineralisation along strike suggests significant resource expansion opportunities.

Jiminy Prospect – The Untested Giant

Perhaps the most exciting development is at the Jiminy Prospect, where extensive high-grade mineralisation was discovered across a 1.5km x 0.3km tin-in-soil geochemical anomaly that remains completely undrilled. This prospect represents exceptional discovery potential for the Koba Resources tin project in Queensland.

The 21 rock chip samples collected across this anomaly revealed exceptional results that exceed industry benchmarks significantly:

The soil anomaly remains open along strike in both directions, offering significant potential for extensions through additional sampling. Consequently, this prospect could potentially become the flagship target for the upcoming drilling programme.

Supporting Prospects Build Critical Mass

The Ontario Prospect, located 800m west of Kitchener, demonstrated parallel mineralisation with grades up to 2.5% tin across 450m of strike. The Lass O'Gowrie Prospect confirmed significant outcropping mineralisation including 12.4% tin.

Additionally, the Young Australian Prospect returned encouraging results up to 3.0% tin across 350m. These supporting prospects collectively demonstrate the district-scale potential of the Stannary Hills Project.

Understanding Tin Grades: What Makes These Results Exceptional

High-grade tin deposits typically contain 1-3% tin, making the results from the Koba Resources tin project in Queensland truly exceptional by global standards. Understanding these grade contexts helps illustrate the significance of Koba's discovery.

Industry Grade Benchmarks

The tin industry operates across a spectrum of grades, with different thresholds defining commercial viability:

• Commercial tin mines generally operate at grades between 0.5-2% tin
• High-grade deposits typically range from 1-3% tin
• Exceptional deposits exceed 3% tin consistently
• Koba's peak results of 26.1% tin represent world-class grades rarely seen in modern exploration

Technical Context

Cassiterite (tin dioxide) is the primary tin-bearing mineral, typically found in granite-related deposits. The presence of extensive outcropping cassiterite mineralisation suggests a robust hydrothermal system capable of producing economic tin concentrations.

Cassiterite: The primary tin mineral (SnO₂) that forms when hot fluids containing tin interact with granite rocks. Greisen: Altered granite that commonly hosts tin mineralisation. Hydrothermal: Hot fluid processes that concentrate metals into economic deposits.

The geological setting at Stannary Hills features granite intrusions of the O'Brien Supersuite, which are known for hosting significant tin-tungsten mineralisation. These highly evolved granites create the necessary chemical conditions for tin concentration into economic grades.

Furthermore, the presence of tungsten mineralisation alongside tin indicates a mature hydrothermal system. This geological association often correlates with sustained high-grade mineralisation across broader areas.

Strategic Positioning for Inaugural Drilling Programme

The company has advanced planning for its maiden drilling programme scheduled to commence in late Q1 2026, following the Queensland wet season. Site meetings with local drilling contractors have been completed, positioning Koba to efficiently test multiple high-priority targets.

Priority Drilling Targets

The systematic approach to target prioritisation ensures maximum impact from the initial drilling campaign:

What Drilling Could Reveal

The upcoming drilling programme at the Koba Resources tin project in Queensland could potentially transform the exploration story. Historical drilling in the Kitchener area intersected 7.3% tin over 1.8m, validating the continuity of high-grade mineralisation at depth.

Upcoming Work Programme

• Q1 2026: Maiden drilling programme commences
• Q2 2026: Induced Polarisation (IP) surveys to define additional targets
• 2026: Extensional soil sampling at Mt Garnet Project
• Ongoing: Project-wide mapping and target generation

Results from recent soil sampling programmes (172 samples collected in December 2025) are expected in February 2026. These results could potentially expand known mineralised zones ahead of drilling, adding further targets to the programme.

Investment Thesis: Exceptional Discovery Potential Meets Favourable Market Dynamics

The convergence of multiple positive factors creates a compelling investment monitoring opportunity. However, investors should consider both the exploration potential and market timing aspects of this opportunity.

Exploration Excellence

The technical merits of the discovery speak to exceptional potential:

• World-class tin grades up to 26.1% from surface sampling
• Multiple high-priority targets across 5km+ of strike length
• Large untested anomalies offering significant discovery potential
• Historic production validation confirming system viability

Market Tailwinds

Current market conditions favour tin exploration and development projects:

• Tin prices up 25% in January 2026 alone
• Supply constraints from Indonesian export concerns
• Strategic metal status driving government and industry interest
• Structural market tightness supporting higher prices

Execution Readiness

The company demonstrates operational preparedness for the critical drilling phase:

• Drilling contractors engaged for late Q1 2026 programme
• Systematic target ranking maximising drilling efficiency
• Experienced management team with proven exploration track record
• Financial positioning to execute comprehensive drilling campaign

Comparative Analysis

Global tin exploration companies rarely achieve surface grades exceeding 10% tin, making Koba's results stand out significantly. For instance, the combination of multiple prospects returning exceptional grades suggests a district-scale tin system with substantial resource potential.

The convergence of exceptional exploration results, favourable commodity markets, and imminent drilling catalysts creates a compelling investment monitoring opportunity for the tin sector.

Why Investors Should Monitor Koba Resources

The exceptional results from the Koba Resources tin project in Queensland position the company at a critical juncture. Moreover, the upcoming drilling programme represents a significant catalyst that could transform the exploration story into a resource discovery.

Key Tracking Points

Investors monitoring this opportunity should focus on several critical milestones:

1. Drilling Results (late Q1 2026): Potential to define maiden resource
2. Soil Sampling Results (February 2026): Could expand target areas
3. Market Conditions: Tin price trajectory and supply dynamics
4. Exploration Expansion: Additional target generation across project portfolio

Strategic Differentiators

Several factors distinguish Koba from other tin exploration opportunities:

• Exceptional grade profile rarely seen in modern tin exploration
• Multiple prospect areas reducing single-target risk
• Established infrastructure in Queensland mining region
• Market timing aligned with tin supply constraints

Forward-Looking Opportunities

The company's systematic exploration approach, combined with world-class initial results and favourable market conditions, positions Koba Resources strategically. Furthermore, several value creation opportunities lie ahead:

• Resource definition potential from inaugural drilling programme
• Strike extension opportunities across multiple prospects
• Market positioning during tin supply constraints
• Portfolio expansion through systematic regional exploration

The next 6-12 months represent a critical period for Koba Resources as drilling results could potentially transform the company. Consequently, the exceptional surface grades, combined with systematic target development, position the company to potentially unlock substantial value.

Conclusion: A Compelling Tin Discovery Story Enters Critical Phase

With surface sampling delivering world-class tin grades and multiple high-priority targets identified, Koba Resources has established itself as one of Australia's most compelling tin exploration opportunities. The company's strategic focus on the Herberton Tin Field, combined with strengthening commodity fundamentals, creates significant upside potential.

The systematic approach to exploration, from initial sampling through to drilling programme planning, demonstrates technical competence and strategic thinking. However, the true test lies in the upcoming drilling results that could validate the surface discoveries at depth.

For investors seeking exposure to tin exploration with exceptional discovery potential, the Koba Resources tin project in Queensland represents a unique opportunity. The combination of world-class grades, multiple targets, and favourable market timing creates a compelling investment thesis for those willing to monitor early-stage discoveries entering their most critical exploration phase.

Looking to Capitalise on High-Grade Tin Discoveries?

Discovery Alert's proprietary Discovery IQ model delivers instant notifications on significant ASX mineral discoveries like Koba's exceptional 26.1% tin grades, empowering subscribers to identify actionable opportunities ahead of the broader market. Begin your 30-day free trial today at Discovery Alert and position yourself to capture the next major mineral discovery before it transforms the market.