Expression of Interest for Provision of Sonic Drilling Services for Tailings Investigation to Trinity Metals LTD

About This Opportunity

Trinity Nyakabingo Mine is seeking provision of integrated sonic drilling services for tailings investigation in support of a Competent Person's Report (CPR) update for Nyakabingo Mine, operated by Trinity Metals Group.

The objective of this engagement is to improve confidence in Mineral Resources and Ore Reserves, address current production versus estimate discrepancies, and support investment and IPO readiness through technically robust and transparent deliverables.

Scope of Work

Mineral Resource Model Update (In-Situ Veins)

Key responsibilities include:

• Review and validate existing vein wireframes
• Integrate broken ore samples (BOS), development sampling data, and historical production data
• Conduct detailed grade analysis per vein and development type
• Develop an updated block model capturing grade variability
• Assess and include previously unmined veins

Tailings Mineral Resource Estimation

Work will include:

• Interpretation of sonic drilling data
• Development of a 3D tailings model
• Volume estimation using LiDAR survey data and drillhole information
• Application of confidence classification through 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)
• Plan underground infrastructure, dewatering, power and services
• Develop ventilation planning outputs, including modelling and design standards

Metallurgical and Economic Review

The engagement will support:

• Review of metallurgical recovery assumptions
• Validation of key modifying factors

Location

Kigali, Rwanda