New Tin Discovery at Rome Resources' Bisie North Advancing Towards Maiden Resource Estimate

• Rome Resources is set to complete maiden Mineral Resource Estimates for both Kalayi and Mont Agoma prospects at its Bisie North project, with completion targeted for end of June 2025.
• The company discovered a new tin zone at Mont Agoma through drill hole MADD030, intercepting a 40-meter interval outside the existing soil anomaly and known mineralized footprint.
• Current drilling operations involve three active rigs with four holes completed since May 13, totaling 737 meters, all encountering visual tin, copper and zinc mineralization confirmed by on-site XRF analysis.
• The new tin zone discovery suggests potential for significant resource expansion along the eastern flank of Mont Agoma, representing either a new tin system or fault-generated repetition of known mineralization.
• Laboratory assay results from the current drilling campaign are expected before July 31, 2025, which will inform updates to the initial maiden resource estimate and guide future exploration targeting.

Rome Resources is a DRC-focused tin and base metals exploration company operating in North Kivu Province, eastern Democratic Republic of Congo. The company's flagship Bisie North project encompasses both the Kalayi and Mont Agoma prospects, where Rome is systematically advancing exploration activities toward resource definition and eventual economic assessment.

With three drilling rigs currently operational and a comprehensive technical program underway, Rome is positioned as a developing player in the strategically important tin sector while building a portfolio of base metals assets in the mineral-rich DRC region.

Maiden Resource Estimate Progress

Rome Resources has initiated a critical milestone in its development trajectory by engaging The MSA Group to complete maiden Mineral Resource Estimates for its Bisie North project. This technical advancement represents the company's first formal step toward quantifying the scale and economic potential of its tin and base metals discoveries.

The scope of work encompasses both the Kalayi and Mont Agoma prospects and includes generation of mineral resource models reported according to CIM guidelines. The deliverable will be documented in an NI 43-101 Technical Report suitable for LSE-AIM disclosure, incorporating 3D block models, grade estimation, and tonnage calculations. Additionally, MSA will assess prospects for eventual economic extraction.

Paul Barrett, Chief Executive Officer, emphasized the significance of this development:

"The geology is shaping up as we had hoped - with copper and zinc dominant near surface and tin strengthening at depth - confirming the zonation model we are targeting. This resource will be our first formal step in defining scale and value at Bisie North, and we plan to follow it with a further updates once assay results from our current deeper drilling campaign are available."

The maiden resource estimate builds on a previous NI 43-101 Technical Report completed by MSA in 2024. Following extensive drilling since that initial assessment, sufficient data has been generated to support three-dimensional mineralization models for both prospects.

New Tin Zone Discovery Expands Resource Potential

Rome Resources announced a significant exploration breakthrough with the discovery of a new tin zone on the eastern flank of Mont Agoma. Drill hole MADD030, positioned northeast of known mineralization, intercepted a 40-meter wide tin-bearing zone at shallow depth within weathered rock sequences.

The discovery carries particular importance because the mineralized intercept lies well outside both the current mineralized footprint and the tin-in-soil geochemical anomaly. This positioning suggests the zone potentially represents either a new tin system or fault-generated repetition of known mineralization, both scenarios offering expansion opportunities.

Initial Niton XRF readings confirmed elevated tin levels despite limited visual identification of cassiterite in the weathered rock material. The company expects laboratory-grade determinations once assay results are reported, providing quantitative confirmation of the discovery's significance.

In a news release, Barrett commented on the exploration implications:

"To date all the Mont Agoma drilling has focused on the main ridge where the geochemical anomaly is strongest. These initial indications from MADD030 open up the exciting scenario where tin mineralisation is present beyond the limits of our known footprint, potentially opening up the whole of the eastern flank of Mont Agoma. This is exactly the kind of upside we hoped to unlock with this new phase of drilling."

Following the deepening of hole MADD030 to better understand structural controls, Rome plans two follow-up drill holes to test the northwestern extension of this newly identified zone.

Drilling Operations and Results

Rome maintains an aggressive drilling program with three rigs currently operational at Mont Agoma. Since May 13, 2025, the company has completed four holes totaling 737 meters, with all holes intersecting visual tin, copper and zinc mineralization confirmed through on-site Niton XRF analysis.

Recent drilling results demonstrate broad mineralized zones across multiple holes:

• MADD023: 50m tin mineralization (38-88m depth), 8m copper (105-113m), 31m zinc (57-88m)
• MADD025: 54m tin mineralization (123-177m), 6m copper (120-126m), 80m zinc (106-186m)
• MADD027: 57m tin mineralization (61-118m), 71m copper (67-138m), 57m zinc (67-124m)

These intervals represent visual mineralization with no grade inference pending laboratory confirmation. Samples will be processed at ALS Global in South Africa with assay results expected before July 31, 2025.

The current drilling program specifically targets deeper tin mineralization beneath shallower copper-zinc zones, following a zonation model where copper and zinc dominate near-surface positions while tin strengthens at depth. This systematic approach aligns with Rome's geological interpretation and supports the technical framework underlying resource estimation work.

Strategic Development Timeline

Rome Resources has established clear near-term development milestones that provide investors with defined catalysts for value creation.

The maiden resource estimate completion is targeted for approximately end of June 2025, at which point the company will release a market summary with the full report available on its website.

Given strong momentum from ongoing drilling operations, Rome expects to update the initial maiden resource estimate following receipt of new assay results from the current campaign. This iterative approach allows for continuous resource growth as exploration data expands the known mineralized envelope.

Barrett outlined the company's development momentum:

"With three rigs turning, work in relation to our maiden mineral resource estimate underway and work due to start soon on the metallurgy of the deposit, Rome is building serious momentum on both the exploration and development fronts. We will continue sharing further updates in relation to drilling progress as well as assay results as they become available."

The company also plans to provide updates on pre-assay drill results as they become available, with the first update expected upon completion of the current three drill holes in the coming days.

Investment Considerations

Rome Resources presents investors with exposure to tin and base metals exploration in the DRC during a period of systematic resource definition. The company's current technical program addresses key development milestones including maiden resource estimation, expanded drilling to test resource continuity, and eventual metallurgical assessment.

The recent tin zone discovery at Mont Agoma demonstrates exploration upside beyond currently defined mineralization, potentially expanding the resource base ahead of initial estimates. With three active drilling rigs and a structured approach to resource modeling, Rome maintains operational momentum toward quantifying its mineral assets.

The company's focus on tin mineralization aligns with strategic metal demand trends, while base metals copper and zinc provide additional value components within the same geological system. Rome's systematic progression from exploration through resource definition positions the company for potential advancement toward feasibility assessment pending successful completion of current technical milestones.