Metal Accounting Senior Officer

Transformation Centre of Excellence(COE) – Quality & Metal Accounting

Date

December
2025

Location

Aggeneys,Northern Cape

Operations

VZI Centre of Excellence(BMM, Gamsberg, Skorpion)

Job Grade

Metal accountinggovernance is essential for protecting value within Vedanta Zinc International (VZI). The key focus of this role is to ensure accuratemeasurement and reporting of metals through the value chain (ore generation,work in progress stocks, on- and off specification concentrates, tailingsresidues, etc.), inclusive of moisture, chemistry and mass to ensures thatproduction and quality reporting, metal reconciliation and business decisions are all reliable and audit ready.

The Metal Accounting Senior Officer plays a pivotal role in reviewing that theday-to-day metal accounting practices executed are compliant with VZI'sAMIRA-aligned metal accounting framework as well as Vedanta’s Management Assurance System (MAS) requirements, with supporting data integrity, samplinggovernance, mass balance preparation, laboratory QA/QC, and reconciliationaccuracy.

To support the accurate, transparent and compliant execution of VZI'smetal accounting system by managing sampling QA/QC, validating metallurgicaldata, assisting in mass balance preparation, and ensuring all measurementprocesses are traceable, accurate and audit ready.

• Ensure all primary, secondary and tertiary sampling complies with VZIand AMIRA standards.
• Verify sample representivity, mixing, splitting, labelling, and chainof custody integrity.
• Monitor sampling equipment condition and report deviations.
• Review QA/QC data (blanks, standards, duplicates) and investigateanomalies.

• Validate data from plant systems (SCADA/DCS/PI), weighbridges,moisture measurements, density meters, sampling systems and laboratory results.
• Flag data gaps, inconsistencies and unusual trends immediately.
• Support root cause analysis for measurement inaccuracies or massbalance imbalances.
• Assist with daily, weekly and month end mass balance preparation forplant feed, concentrate, tailings and residues.
• Support variance identification and root cause investigations.
• Maintain detailed logs of adjustments, assumptions and reconciliationnotes.
• Ensure mass balance files are accurate, traceable and audit ready.
• Coordinate with internal and business partner laboratories to ensureturnaround times, accuracy and method compliance.
• Track laboratory performance trends (bias, precision, drift,outliers).
• Support corrective actions where analytical deviations occur.

• Prepare metal accounting data packs,dashboards and summaries for managerial review.
• Maintain structured data repositories for all sampling, assay and reconciliation records.
• Ensure controlled documents areversion managed and audit ready.
• Contribute to monthly quality &metal accounting reports.

• Work with Metallurgy and Operations to identify losses or measurementgaps.
• Assist with testwork, sampling point redesign, flow measurementimprovements and MSA (measurement system analysis).
• Track implementation of corrective actions and verify effectiveness.

• Coordinate documentation and quality requirements for labs, survey,inspection and sampling business partners.
• Review performance and elevate noncompliance to the Quality &Metal Accounting Manager.

• Support preparation for internal and external metal accounting audits.
• Ensure compliance with VZI governance, MHSA requirements and chemical handling standards.
• Conduct VFLs, plant walkdowns, PTOs and participate in IBRA/HIRAreviews.
• Assist in…