Jeremiah Kiumo

Metallurgical Engineer | Laboratory & Operations Specialist

Marahun Government Housing house 7, 635, Lihir, Papua New Guinea.

About

Highly analytical and technically proficient Metallurgical Engineer with extensive experience in mineral processing, laboratory operations, and safety focused within growth-oriented organizations. Proven ability to optimize technical processes, conduct precise analytical tests, and enhance operational efficiency while fostering positive relationships with internal and external stakeholders. Seeking a challenging role to leverage strong technical acumen, problem-solving capabilities, and commitment to increasing productivity.

Work

Mahjac Enterprise Limited

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Project Metallurgical Technician

Lihir, New Ireland Province, Papua New Guinea

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Summary

Conduct field sampling on autoclave #3 discharge. Carrying out laboratory test on autoclave discharge sample. Utilising 3 test per sample, test #1 focused on the ORP change in autoclave discharge slurry as the temperature was increased, test #2 was to see the change in ORP value as temperature was increased in the filtrate of the autoclavedischarge and test #3 was conducted to observe any changes in ORP values in autoclave discharge filtrate with out heat over time. Focusing on the change of Oxidation Reduction Potential output as a result of temperature change. Objective is to verify the accuracy of the online ORP instrument installation at the Autoclave 3 in Lihir Process Plant.

Mahjac Enterprise Limited

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Metallurgical Laboratory Technician-Contractor

Lihir, New Ireland Province, Papua New Guinea

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Summary

Performed metallurgical laboratory operations, ensuring adherence to safety protocols and executing precise testing procedures for mineral processing.

Highlights

Ensured strict adherence to all health and safety procedures, including Zero 3 Tasol (Z3T) and Job Safety Environmental Analysis (JSEA), maintaining a secure working environment.

Performed daily, weekly, and monthly metallurgical tests, including Leaching, Flotation, and size analysis, in strict accordance with Standard Operating Procedures (SOPs).

Executed precise sampling at designated points for test work, ensuring the integrity and representativeness of samples for analysis.

Proactively identified and reported equipment defects and operational hazards to supervisors, facilitating timely resolution and minimizing downtime.

Intertek Testing Services (ITS) Limited

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Laboratory Technician Level 2

Lae, Morobe Province, Papua New Guinea

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Summary

Supervised and executed advanced laboratory procedures, specializing in sample preparation, fire assaying, and wet chemical analysis, while coordinating team activities.

Highlights

Executed Standard Operating Procedures across Sample Preparation, Fire Assaying, and Wet Chemical Laboratory departments, ensuring high analytical precision.

Supervised and coordinated analytical tasks for a team of 2 co-workers across various lab sections, including balance room, Fire Assay, Wet Laboratory, and Atomic Adsorption Spectrometry (AAS) room, optimizing workflow efficiency.

Performed daily and monthly calibrations and maintenance on critical laboratory equipment, including electronic balances, fusion and cupellation furnaces, AAS, hotplates, fume hoods, and acid dispensers, ensuring operational accuracy and longevity.

Maintained meticulous records of processes and procedures for all minerals tested, ensuring data integrity and compliance with quality standards.

Travel Air Limited

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Shift Supervisor/Load Master

Lae, Morobe Province, Papua New Guinea

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Summary

Oversaw flight operations, managed aircraft load distribution, and supervised staff to ensure safety, efficiency, and regulatory compliance.

Highlights

Led daily shift briefings for all staff, assigning tasks and responsibilities while verifying adherence to proper work and safety PPE, enhancing operational readiness and safety.

Monitored and supervised passenger and baggage check-in processes, ensuring compliance and efficiency for all flights.

Developed and executed precise aircraft load distribution plans, optimizing weight and balance for safe and efficient flight operations.

Supervised flight boarding and the loading of cargo/baggage, strictly adhering to load distribution plans to maintain safety standards and prevent delays.

Authorized flight dispatches upon verification of all pre-flight requirements, ensuring regulatory compliance and on-time departures.

Managed daily financial reconciliations, producing accurate summary balance sheets for accounting, ensuring financial transparency and accountability.

National Analytical Testing Services Limited

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Laboratory Technician

Lae, Morobe Province, Papua New Guinea

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Summary

Conducted comprehensive mineral sample preparation and analysis, utilizing various analytical methods to support quality control and client reporting.

Highlights

Executed comprehensive sample preparation, including drying, crushing, and grinding, to obtain qualitative and quantitative representative samples for analysis.

Performed fire assay procedures, ensuring accurate determination of precious metal concentrations in mineral samples.

Carried out various acid digestion methods tailored to specific sample types, facilitating complete dissolution for subsequent analysis.

Operated Atomic Adsorption Spectrometry (AAS) equipment for precise elemental analysis, ensuring data accuracy for various mineral samples.

Compiled and organized critical analytical data for Sinor Geo-Chemists, supporting Quality Control/Quality Assurance (QC/QA) and client reporting.

References

Richard Papaol

Chemist - Lab Supervisor Newmont Mining Limited

Dindo Mercado

Specalist - Project Metallurgist Newmont Mining Limited Email: dindo.mercado@newmont.com

Aaron Sitautau

Project Metallurgist Newmont Mining Limited Lihir Email: Aaron.Sitautau@newmont..com

Education

University Of Technology, Independence Drive

Lae, Morobe Province, Papua New Guinea
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Bachelor of Engineering Mineral Processing Engineering

Certificates

Enter and Work in a Confined Space

Newmont lihir

Hazard Management (HM)

Newmont lihir

Job Safety Environmental Analysis (JSEA)

Newmont lihir

Safe Work at Heights

Newmont lihir

Permit User (PU)

Newmont lihir

Zero 3 Tasol (Z3T)

Newmont lihir

G-Permit

Newmont lihir

Languages

English

Pidgin

Skills

Metallurgical Operations

Mineral Processing Engineering, Leaching, Flotation, Size Analysis, Hydrometallurgy, Pyrometallurgy, Surface to Chemical Processing, Sampling, Fire Assaying, Wet Chemical Analysis, Atomic Adsorption Spectrometry (AAS), Instrumental Analysis, Equipment Calibration, Preventive Maintenance, Standard Operating Procedures (SOPs), Quality Control (QC), Quality Assurance (QA).

Safety & Compliance

Hazard Management (HM), Job Safety Environmental Analysis (JSEA), Safe Work at Heights, Permit User (PU), Zero 3 Tasol (Z3T), Safety Protocols, Regulatory Compliance.

Laboratory Techniques

Sample Preparation, Acid Digestion Methods, Electronic Balances, Fusion Furnaces, Cupellation Furnaces, Hotplates, Fume Hoods, Acid Dispensers, Data Compilation, Analytical Testing.

Software & Systems

Microsoft Office Suite, Data Analysis Tools.

Interpersonal Skills

Team Leadership, Teamwork, Communication, Stakeholder Engagement, Work Delegation.

Projects

Verification of AC3 Online ORP

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Summary

•sampling of AC3 discharge slurry to measure Oxidation-Reduction Potential (ORP) across a range of temperatures, both in the field and in the laboratory. The objective is to generate ORP vs Temperature data to establish a correlation that can be used to validate the accuracy of the online ORP instrument.

Determining Optimum Pulp pH for Flotation of Sulphides in Hidden Valley Ore

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Summary

Final Year Major Project - Industrial based project focused on optimizing the flotation process for sulphide minerals from Hidden Valley ore.