Kalongo Lithium Mining Project embeds Quality Assurance and Quality Control (QA/QC) processes from the earliest phases of project initiation and evaluation, beginning prior to and during geophysical survey programs, and continuing throughout exploration drilling, resource estimation classification , feasibility studies, and future operations.

Quality Assurance and Quality Control (QA/QC) processes are implemented from the earliest stages of geophysical exploration, beginning prior to and during geophysical survey programs, and maintained throughout the project lifecycle.

This structured framework ensures that all geological, technical, environmental, and financial data used for decision-making and public disclosure are robust, traceable, auditable, and compliant with internationally recognized standards.

QA/QC Framework, Aligned with NI 43-101 

Kalongo Lithium Mining Project implements Quality Assurance and Quality Control (QA/QC) procedures in accordance with internationally recognized mineral reporting standards, including:

• NI 43-101 and CIM Definition Standards

QA/QC protocols are embedded from project inception and apply across geophysical surveys, drilling, sampling, analytical testing, Mineral Resource estimation, and technical studies.

All public technical disclosures are reviewed and approved by a Competent Person or Qualified Person (NI 43-101), as applicable.

1. Geophysical Survey QA/QC (Pre-Drilling Stage)

Survey Execution

The geophysical survey program was conducted by Expert Geophysics utilizing Mobile Magnetotellurics (MobileMT) technology, a modern airborne electromagnetic method designed to provide deep subsurface resistivity and conductivity imaging.

MobileMT technology enables:

• High-resolution mapping of subsurface resistivity and conductivity contrasts
• Structural delineation of pegmatite bodies
• Identification of conductive and resistive geological features
• Improved drill targeting accuracy

The selection of MobileMT technology was based on its suitability for mapping large-scale pegmatite-hosted mineral systems and identifying structural continuity at depth.

Independent QA/QC Oversight

To ensure data integrity and regulatory defensibility:

• DMT Group South Africa (Pty) Ltd and Minrom Consulting were engaged to provide independent QA/QC oversight of the geophysical program.
• Both firms reviewed survey design, data acquisition parameters, processing workflows, and interpretation methodologies.
• DMT Group South Africa (Pty) Ltd and Minrom Consulting conducted mutual cross-audits of each other’s QA/QC processes to ensure procedural robustness and eliminate systematic bias.

Pre-Survey QA/QC Controls

• Independent review of survey methodology relative to pegmatite-hosted lithium mineralization.
• Calibration verification of MobileMT instrumentation prior to deployment
• Validation of flight line spacing and survey grid design
• Contractor technical competency verification
• Establishment of structured data capture and storage protocols

Survey parameters were reviewed and validated by both DMT Group South Africa (Pty) Ltd and Minrom Consulting prior to survey execution.

QA/QC During Survey Execution

(Geophysical Survey Conducted by Expert Geophysics using MobileMT Technology)

The airborne Mobile Magnetotellurics (MobileMT) survey was conducted by Expert Geophysics, with independent on-site supervision provided by DMT Group South Africa (Pty) Ltd and Minrom Consulting, acting on behalf of the Company. The QA/QC framework during execution was implemented in accordance with the approved Scope of Work SOW-DMT 23 August 2025.

Independent Supervision & Oversight

DMT Group South Africa (Pty) Ltd and Minrom Consulting was appointed to provide:

• On-site supervision of daily MobileMT acquisition activities
• Independent monitoring of adherence to technical, HSE, and logistical requirements
• Oversight of data integrity, consistency, and traceability
• Facilitation of communication between contractor and client
• Structured documentation and reporting of field activities

Supervision extended from mobilization through demobilization, ensuring continuous QA/QC control during the operational period

Field Execution Controls

During airborne survey operations, the following QA/QC controls were applied:

• Daily supervision of MobileMT data acquisition crew
• Monitoring of adherence to survey design, flight path/grid spacing, and sampling density
• Verification of correct deployment of airborne bird and helicopter support systems
• Real-time monitoring of data quality where possible
• Monitoring and reporting of instrument calibrations
• Immediate escalation of deviations from survey specifications

Health, Safety, and Environmental (HSE) compliance was monitored throughout field operations in accordance with approved plans

Daily Data QA/QC & Archiving Protocols

Daily quality control procedures included:

• Verification that data met agreed survey specifications
• Survey and drape analysis
• Daily noise analysis
• Monitoring and correction of magnetic diurnal variation
• Reporting and validation of re-flights where required
• Monitoring of survey tolerances and test line data
• Lag tests
• Heading and altimeter test analysis
• Daily data generation and secure archiving
• Data transmission via FTP for off-site review

These controls ensured continuous validation of signal integrity, positional accuracy, and acquisition reliability

Documentation & Traceability

Structured documentation procedures were implemented to maintain audit-ready records:

• Daily field log including weather, environmental conditions, crew status, and equipment performance
• Data acquisition coverage and productivity reporting
• Logging of incidents or anomalies
• GPS-tagged photographic documentation
• Metadata recording for each survey line (including calibration checks, timing references, and background EM noise)
• End-of-survey summary report including coverage maps, equipment used, operational summary, issues encountered, and preliminary and data quality assessment

All raw and processed data were archived with traceable metadata to support auditability and regulatory disclosure requirements

Independent Technical Review & Cross-Audit

In addition to DMT supervision:

• Minrom Consulting provided independent QA/QC review.
• DMT Group South Africa (Pty) Ltd and Minrom Consulting conducted cross-audits of QA/QC procedures and validation methodologies.
• Independent review covered acquisition parameters, quality thresholds, and interpretation readiness.

Formal Sign-Off

Subject to completion of final reporting:

• DMT Group South Africa (Pty) Ltd and Minrom Consulting will provide formal technical sign-off on survey methodology, QA/QC controls, and dataset integrity.
• A Geophysical Qualified Person assumed responsibility for the third party review of the geophysical results and geological interpretation. 

Technical Integrity Outcome

The structured supervision framework, combining:

• Expert Geophysics (MobileMT acquisition)
• DMT Group South Africa (Pty) Ltd and Minrom Consulting on-site QA/QC supervision
• DMT Group South Africa (Pty) Ltd and Minrom Consulting independent review
• Daily documented data validation procedures

ensures that geophysical target generation and geological interpretation will serve as a good foundation that will underpin the target estimation drilling and resource estimation drilling.

Post-Survey Data Validation & Audit

Following completion of airborne acquisition by Expert Geophysics using MobileMT technology, a structured post-survey QA/QC and audit process was implemented under independent oversight by DMT Group South Africa (Pty) Ltd and Minrom Consulting.

Data Integrity & Archiving Controls

• Secure archiving of raw MobileMT datasets
• Verification of data completeness against planned flight lines
• Confirmation of survey coverage and grid compliance
• Reconciliation of field logs with digital datasets
• Metadata validation (calibration records, timing references, noise logs)
• FTP transmission and secure storage of daily data packages

These procedures ensured full traceability and audit readiness in accordance with best international practices in the industry. 

Only validated and interpreted geophysical datasets will be incorporated into drill targeting and geophysical modeling.

Technical QA/QC Review by DMT Group South Africa (Pty) Ltd and Minrom Consulting

DMT Group South Africa (Pty) Ltd and Minrom Consulting conducted structured post-survey QA/QC including:

• Review of acquisition parameters against approved survey design
• Validation of daily QA/QC reports (noise analysis, diurnal corrections, lag tests, heading and altimeter tests)
• Confirmation of re-flight justifications where applicable
• Assessment of survey tolerances and test line performance
• Independent quality scoring of processed datasets

Technical Integrity Outcome

The post-survey QA/QC framework — combining:

• Structured daily field supervision
• Formalized data validation procedures
• Independent review by DMT Group South Africa (Pty) Ltd and Minrom Consulting
• Independent review by DMT Group South Africa (Pty) Ltd and Minrom Consulting
• Mutual cross-audit and reconciliation

provides a high level of technical assurance and regulatory defensibility for the geophysical dataset underpinning the Kalongo Lithium Mining SA exploration program.

Independent Sign-Off

Both DMT Group South Africa (Pty) Ltd and Minrom Consulting will provide formal technical sign-off on:

• Survey methodology
• QA/QC controls
• Data integrity
• Interpretation robustness<