Maiden Mineral Resource Confirms Large, Multi-Metallic System at Bisie North & Repositions Rome Resources as a Strategic Critical Minerals Growth Story

• Rome Resources' maiden MRE confirms a large-scale tin-copper-zinc-silver system at Bisie North, providing the first quantifiable foundation for growth in one of the world's most prospective tin districts.
• The MRE validates Tier-1 geological characteristics, including depth-strengthening tin grades analogous to neighbouring Alphamin's Bisie mine.
• Strong multi-metallic value drivers and robust NSR metrics demonstrate a commercially viable system with diversified revenue potential and low-cost development pathways.
• Significant upside remains untapped, with a defined 102,000–260,000 tonne tin exploration target and a follow-up MRE expected to incorporate the high-grade Mont Agoma East zone.
• Rome's experienced DRC-focused leadership team and strengthened balance sheet support an accelerated drilling and de-risking pathway.

Why the Bisie North Maiden MRE Matters for Investors Now

The tin market faces structural tightness that few investors fully appreciate. As electrification accelerates and advanced computing infrastructure expands, tin has emerged as a critical enabler in sectors ranging from electric vehicles to artificial intelligence hardware. Yet the global supply pipeline remains constrained, with limited new primary discoveries capable of meeting demand growth projected at up to 40 percent by 2030 according to the International Tin Association.

Rome Resources' maiden MRE represents a threshold moment for investors seeking exposure to this supply-demand imbalance. Released on October 30, 2025, the estimate removes early-stage uncertainty and establishes a quantifiable baseline for economic modelling, enabling analysis of net present value, internal rate of return, and development timelines. This transition from exploration thesis to resource-backed asset fundamentally alters the investment case, particularly for institutional allocators who require defined tonnage and grade metrics before committing capital.

Rome's positioning in the Democratic Republic of Congo's North Kivu tin belt, eight kilometers from Alphamin's Bisie mine, provides geological credibility and demonstrates a proven development pathway. The district has established infrastructure, including an airstrip and supply chain logistics, that materially reduces execution risk compared to greenfield exploration projects. The release of the maiden resource marks a transformational milestone for the company.

Tin's Rising Strategic Value & the Supply Challenge

The global tin market operates under supply constraints that create strategic opportunities for new primary production. Tin occupies a unique position in the clean energy transition and digital economy expansion, serving as a critical input in solder applications for semiconductors, electric vehicle electronics, data center infrastructure, and renewable energy systems. Unlike other base metals where substitution remains viable, tin's properties in high-reliability electronics make it functionally irreplaceable in many applications.

The International Tin Association projects demand growth of up to 40 percent by 2030, driven primarily by electronics manufacturing and clean energy applications. This demand trajectory occurs against a supply base that has seen minimal capacity additions over the past decade. Primary tin production remains concentrated in aging deposits with declining grades, while new discoveries capable of supporting large-scale, long-life operations have been exceptionally rare.

Global tin supply concentration creates meaningful geopolitical risk for manufacturers. Myanmar, Indonesia, and China collectively dominate primary production, exposing supply chains to jurisdictional instability, export policy shifts, and potential trade restrictions. For strategic planners in the United States and Europe, diversifying tin sources represents a supply security imperative comparable to rare earth elements or lithium.

Market preference has shifted decisively toward multi-metallic deposits that offer polymetallic credits enhancing internal rate of return and reducing project payback periods. Projects with diversified revenue streams demonstrate greater resilience to commodity price volatility and attract stronger financing terms. The resource expansion potential at Bisie North positions the project for substantial growth beyond the maiden estimate.  Paul Barrett, Chief Executive Officer of Rome Resources underscores the system's scalability:

"We think there's a lot of scope now for the northeast flank of Mont Agoma. With what we're seeing now, it will only get bigger."

Quantifying the Scale: A Multi-Metallic System with Tier-1 Characteristics

The maiden resource establishes a quantifiable scale across multiple metals. Prepared by The MSA Group in accordance with Canadian Institute of Mining, Metallurgy and Petroleum Best Practice Guidelines and NI 43-101 standards, the estimate provides institutional-grade resource classification.

The maiden Mineral Resource Estimate at Bisie North establishes a foundation of 10.6 thousand tonnes tin, 46.9 thousand tonnes copper, 86.2 thousand tonnes zinc, and 1.46 million ounces silver in the Inferred category. While inferredInferred resources cannot be used directly in preliminary economic assessments, they provide quantifiable validation of system scale and serve as the baseline for infill drilling programs that upgrade confidence to Indicated and Measured categories.

Mont Agoma represents the primary tonnage driver, with 3.16 million tonnes at a net smelter return of 166 United States dollars per tonne. The NSR calculation, based on a 90 USD per tonne cut-off grade, reflects reasonable metallurgical recovery assumptions and current commodity price expectations. The reasonable prospects for eventual economic extraction assessment used tin prices of 36,600 USD per tonne, copper prices of 11,111 USD per tonne, with assumed concentrator recoveries of 65 percent for tin, 90 percent for copper, 90 percent for zinc, and 83 percent for silver.

Near-surface zones show copper-dominant assemblages that transition to increasingly tin-enriched mineralization with depth. This vertical zonation mirrors the geological model observed at analogous systems. 

Kalayi contributes 0.33 million tonnes at 1.36 percent tin using a 0.85 percent tin cut-off grade, representing a high-grade component that enhances overall project economics through selective mining strategies. Rome Resources has shipped a 1,000 kilogram bulk sample to Canada for comprehensive beneficiation testing, a critical step in validating metal recovery assumptions that feed into preliminary economic assessment modeling.

Resource Growth Potential Remains Underestimated

The maiden resource represents only the initial delineation of a system that remains open at depth and along strike. Current drilling at Bisie North has tested mineralization to depths of only 220 to 250 meters, extremely shallow relative to comparable tin systems globally. The geological model suggests depth-strengthening tin grades driven by structural controls and hydrothermal fluid pathways that concentrate mineralization at greater depths.

Rome Resources' geological team estimates an additional 102,000 to 260,000 tonnes of tin could be defined through deeper and step-out drilling. It is critical for investors to understand that exploration targets do not constitute resources under NI 43-101 standards and cannot be relied upon for economic studies. The exploration targets are preliminary in nature and based on internal estimates. There has been insufficient exploration to define a Mineral Resource, and it is uncertain whether further exploration will result in the estimation of a Mineral Resource.

One of the most significant near-term catalysts for resource growth remains outside the maiden estimate. Drilling at Mont Agoma East in hole MADD030 intersected a near-surface, 23-meter zone of high-grade tin mineralization that was not included in the current resource due to insufficient drilling density. This zone lies outside the original soil geochemistry anomaly, suggesting the mineralized system extends beyond surface expression.

Rome aims to incorporate Mont Agoma East into a follow-up resource estimate to be published at a later date following completion of additional drilling. Barrett explains the strategic importance of this newly identified zone:

"This is either a brand new zone or it's a zone that's been faulted in a repeat sequence. Either way, it's significant."

Why Bisie North's Location & Competitive Context Matter

Rome Resources operates eight kilometers from Alphamin's Bisie mine. This proximity provides operational de-risking that reduces technical and execution uncertainties. The region's infrastructure, developed to support adjacent mining operations, includes airstrip facilities within proximity to the project. Rome maintains a permanent field camp and operates with helicopter support.

Global tin exploration has produced few discoveries over the past decade capable of supporting operations exceeding 10,000 tonnes annual production. This scarcity dynamic creates valuation leverage for development-stage assets that exceed certain threshold metrics for tonnage and grade. The copper and zinc components at Bisie North provide hedging against tin market volatility while creating strategic optionality for partnership structures. Following the maiden MRE release, Rome will continue engaging with potential strategic partners to support future project development.

Why Management & Balance Sheet Strength Reduce Development Risk

Rome Resources has assembled a technical team with direct experience in the Democratic Republic of Congo. Chief Operating Officer Mark Gasson brings 20 years of operational experience in the DRC, providing institutional knowledge of regulatory frameworks and community engagement protocols specific to North Kivu province. Exploration Manager Jamie Anderson started the Bisie tin project as Exploration Manager with Alphamin, bringing firsthand knowledge of the geological controls and mineralization styles that define the district.

Chief Executive Officer Paul Barrett brings over 40 years of resource development experience, while Non-Executive Chairman Klaus Eckhof contributes more than 20 years of experience in the sector. The leadership team's strong DRC track record and good relations with local inhabitants and artisanal miners addresses primary concerns raised by institutional investors evaluating African mining opportunities. Recent agreements brokered by the United States include access to minerals, opening the DRC to new business and pointing to increased confidence in the mining sector.

Rome Resources raised £8.2 million in 2024 through two financing events: £4 million raised during the reverse takeover in July 2024, and £4.2 million provided by a strategic investor in December 2024 to advance drilling programs. The company allocated 49 percent of net proceeds to project expenditure, establishing a capital base to fund near-term drilling programs and resource expansion work.

Key Risk Factors & How Rome Resources Mitigates Them

Operating in North Kivu province presents legitimate jurisdictional considerations that require balanced assessment. However, Rome's experienced team has established good relations with local inhabitants and artisanal miners. The company's proximity to existing operations and recent positive developments in the DRC mining sector support operational viability when companies establish strong local relationships and maintain transparent engagement with government authorities.

The Inferred resource classification carries important limitations for economic modeling. Under NI 43-101 standards, Inferred resources represent the lowest confidence category and cannot be converted to ore reserves or used in feasibility-level economic studies. Mineral Resources are not Mineral Reserves and have no demonstrated economic viability. The estimate may be materially affected by geology, environment, permitting, legal title, taxation, socio-political, marketing, metal prices, costs, or other relevant issues. The de-risking pathway follows a well-established progression: infill drilling converts Inferred resources to Indicated confidence, enabling preliminary economic assessment work.

Multi-metallic systems like Bisie North provide revenue buffering across commodity cycles, as price movements rarely correlate perfectly across metals. Rome's proximity to established infrastructure reduces both capital intensity and execution risk during eventual development phases compared to greenfield exploration projects.

The Investment Thesis for Tin & Multi-Metallic Deposits

• Tin demand is accelerating due to global electrification, digitalization, and AI hardware growth, creating structural supply deficits through 2030 as new large-scale supply fails to keep pace with rising consumption.
• Supply concentration in high-risk jurisdictions amplifies the strategic value of Tier-1 assets in stable, well-regulated mining districts, where predictable permitting and reliable infrastructure support lower execution risk and stronger long-term pricing power.
• Multi-metallic deposits enhance project economics through polymetallic revenue credits, improving IRR, reducing financing risk, and offering flexibility to adjust production profiles across commodity cycles, an advantage over single-metal deposits.
• The Bisie district provides validated geological continuity and proven permitting pathways, supported by adjacent successful operations. This significantly reduces uncertainty for new developers operating in North Kivu province.
• Rome Resources’ maiden MRE establishes the company’s first quantifiable valuation anchor, enabling a transition toward economic studies as infill drilling expands resource size, upgrades confidence categories, and lays the foundation for a PEA-driven re-rating.
• A follow-up MRE incorporating Mont Agoma East and new drilling from the northeastern flank offers clear near-term catalysts, positioning Rome as one of the few early-stage entrants with visible, step-change growth potential in a tight tin-copper market.
• Strategic partner interest from smelters, trading houses, and major miners is likely to accelerate as Rome advances toward development, with the tin sector’s scarcity value drawing capital seeking long-term critical mineral exposure.
• Rome’s combination of geological scale, diversified metal exposure, experienced regional management, and a sufficiently funded drill program positions the company among the strongest early-stage critical minerals opportunities, particularly for investors seeking high-upside, risk-adjusted returns in tin and copper.

A Foundation for Long-Term Value Creation in the Tin Belt

The maiden Mineral Resource Estimate released on October 30, 2025 represents not an endpoint but a threshold moment for Rome Resources. The quantitative validation of a large, multi-metallic system improves confidence in scalability, project economics, and long-term development potential. With a deep technical team that includes discovery-stage expertise in the Bisie district, a strengthened balance sheet providing sustained drilling capacity, and clear catalysts ahead including the follow-up resource estimate, Rome is structurally positioned for multi-stage valuation uplift as resource size expands and project definition advances toward economic studies.

For investors seeking exposure to tin and copper growth narratives, the Bisie North maiden MRE establishes one of the compelling early-stage critical minerals opportunities in the current market. The combination of geological validation, multi-metallic revenue optionality, proven district analogues, and experienced management execution capability creates a risk-reward profile characteristic of resource development stories at inflection points.

TL;DR

Rome Resources released its maiden Mineral Resource Estimate for Bisie North in the DRC, confirming a large multi-metallic system containing tin, copper, zinc, and silver. The deposit shows Tier-1 characteristics with depth-strengthening tin grades similar to neighboring Alphamin's successful Bisie mine. Located in a proven tin district with established infrastructure, the project has significant expansion potential with 102,000–260,000 tonnes of additional tin targeted. The company's experienced DRC-focused management team and strengthened balance sheet support accelerated development. With tin demand projected to grow 40% by 2030 amid constrained global supply, Rome's diversified metal exposure and proximity to existing operations position it as a compelling critical minerals opportunity at an inflection point.

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