EXPRESSION OF INTEREST FOR LABORATORY GEOCHEMICAL ASSAYING AND GEOTECHNICAL TESTING TO TRINITY NYAKABINGO MINE LTD

Trinity Nyakabingo Mine Ltd is seeking for a qualified and local Rwandan service provider to deliver analytical services for drilling samples of both Sonic and Diamond drilling campaigns. 

Scope of Work for Mine Planning and Project assist: 

The scope of the laboratory assaying and geotechnical testing work includes but not limited to the following:

For Geochemical Assaying:

• Sample logging and tracking
• Verifying sample integrity and ensuring secure storage before processing and testing
• Standard sample preparation ensuring non-contamination
• Samples digestion/fusion capable of handling tungsten minerals such as ferberite and scheelite 
• Assaying samples through standard techniques such as ICP-AES/MS with low detection limits for full suite of elements and be able to assay overlimits
• Quality assurance and quality control through certified reference materials, blanks and duplicates
• deliver control charts to ensure quality control and statistical monitoring
• deliver certificates of analysis

For Geotechnical Testing:

Capacity to determine rock mass parameters from core and rock/soil samples for mining and civil engineering designs, specifically:

• Uniaxial Compression Tests – determination of UCS, Young’s Modulus, Poisson's Ratio.
• Tensile Strength Tests – capacity to carry out direct and indirect tensile strength tests 
• Triaxial Compression Tests – determination of compressive strength, Young’s Modulus, Poisson's Ratio, cohesion and friction angle tests
• Determination of numerical modelling parameters through Mohr-Coulomb and/or Hoek-Brown analysis
• Rock shear strength tests

Eligibility and Competency Requirements

Interested parties must:

For Geochemical Assaying

• Be recognized Competent Persons as defined by the JORC Code (2012 Edition)
• Have a minimum of 10 years of demonstrated experience in geochemical assaying
• Possess ISO valid accreditation
• Add demonstrable projects where samples were used for JORC Code CPRs
• Be equipped with the required calibrated equipment for sample preparation and analytical methods specified above
• Be able to ensure reliable turnaround times below 6 weeks
• Have digital databases compatible with Excel/CSV files
• Have qualified geochemists capable of data analysis and carry out quality control analysis and flag outliers to re-assay the samples flagged 

For Geotechnical Testing

• Have a minimum of 10 years of demonstrated experience in rock mechanics related laboratory tests 
• Demonstrate strict compliance with ISRM and/or ASTM standards for rock testing and sample preparation
• Be equipped with the required calibrated equipment in accordance with ASTM/DIN standards
• Have qualified technicians and a principal engineer tasked with quality control from sample acceptance to results interpretation
• Be able to ensure reliable turnaround times below 6 weeks

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

Submission to be forwarded to tender@trinity-metals.com by not later than 7th May 2026 at 11:00AM Local time. Expressions of Interest received after 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.