EXPRESSION OF INTEREST FOR PROVISION OF SONIC DRILLING SERVICES FOR TAILINGS INVESTIGATION TO TRINITY METALS LTD

Trinity Nyakabingo Mine hereby submits this Expression of Interest to deliver integrated geological, resource estimation, and mine planning services in assist of the Competent Person’s Report (CPR) update for Nyakabingo Mine, operated by Trinity Metals Group.

We understand that the objective of this engagement is to enhance confidence in Mineral Resources and Ore Reserves, address current production vs. estimate discrepancies, and assist investment and IPO readiness through technically robust and transparent deliverables

Scope of Work

The scope of work is structured into the following key technical areas:

Mineral Resource Model Update (In-Situ Veins)

The selected consultant(s) will:

• evaluate and validate existing vein wireframes
• Integrate:
• Broken Ore Samples (BOS)
• Development sampling data
• Historical production data
• perform detailed grade analysis per vein and development type
• create an updated block model capturing grade variability

Additional responsibilities include:

• Assessment and inclusion of previously unmined veins

Tailings Mineral Resource Estimation

The work will include:

• Interpretation of sonic drilling data
• Development of a 3D tailings model
• Volume estimation using:
• LiDAR survey data
• Drillhole information
• Application of confidence classification (variance analysis)

Mine Planning and Mining Section of CPR

In coordination with Trinity and appointed mining consultants:

• Update the Life-of-Mine (LOM) plan
• Revise mine design and scheduling based on updated resources
• Contribute to the Mining Section of the CPR, including:
• Mining methods (stoping and development)
• Underground infrastructure, Dewatering, Power and services
• Ventilation planning outputs, including modelling and design standards

Metallurgical and Economic evaluate

The engagement will assist:

• evaluate of metallurgical recovery assumptions
• Validation of key modifying factors:
• Grade assumptions
• Operating costs
• Capital costs
• Production rates
• Integration into economic models, ensuring:
• Flexibility for scenario analysis
• Alignment with current commodity pricing (tungsten market)

Environmental, ESG, and Compliance

The selected party will contribute to:

• Review of:
• ESIA, ESMP, and ESAP documentation
• Regulatory compliance frameworks
• Update of JORC Table 1
• Input into Environmental, Social, and Governance (ESG) sections of the CPR

Expected Deliverables

The engagement is expected to produce:

• Updated Mineral Resource Estimate
• Tailings Mineral Resource Model
• Inputs for Ore Reserve estimation
• Updated Life-of-Mine Plan
• Mining Section of CPR
• Economic Model Review
• Updated JORC Table 1 documentation
• CPR-ready technical reports for investor use

Submission Requirements

All interested parties should submit an Expression of Interest in accordance with the below requirements complete with supporting documents.

• Company profile and relevant experience
• Technical approach and methodology
• Proposed team structure and CVs
• Experience with:
• JORC-compliant reporting
• Narrow vein / high nugget deposits
• Tailings resource estimation
• Indicative timeline and availability
• Details of at least five similar projects undertaken in the last five years.
• Certificate of domestic company registration issued by RDB.
• VAT Registration.
• Valid income tax clearance issued by RRA

Submission to be forwarded to tender@trinity-metals.com by not later than 30th April 2026 at 11:00AM Local time. Expressions of Interest received after 11:00AM will unfortunately not be considered.

Further discussion will be undertaken with selected respondents to prove the competence of the bidder and thereafter an invitation to tender will be provided to the bidder.