Specialist Consulting for the
Mining Sector
Project Management • Engineering • Design • Construction
Full Turnkey Project Management & Coordination
Minerals Processing • Infrastructure
An Agile, Experienced & Dynamic Team of Professionals
Responsive • Strategic • Methodical
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About G4 Engineering & Project Services

G4 Engineering and Project Services (Pty) Ltd (G4eps) is a specialised consulting firm providing project management services, engineering, design, construction and co-ordination for minerals processing and infrastructure projects.

G4eps was formed to provide dynamic engineering and project management services to the mining sector. Since our inception in 2008, our versatility and focused skills have enabled us to respond to our clients’ needs efficiently and effectively, with world-class professionalism.

We are owner-managed and able to the make quick decisions that are necessary to ensure minimal downtime for our clients. With extensive and diversified experience in the design, operations and project management industry and an exemplary track record at leading organisations, the team at G4eps possess the required expertise and knowledge to make a significant difference to any project. Our ability to complete tasks skillfully and reach decisions promptly during design or execution phase, is a testimony of our exceptional time management, organisational ability and personalised dedication to our clients.

G4eps has the capacity and ability to strategically plan and successfully coordinate complex operations. We solve problems through applying analytical thinking with strong strategic and operational leadership, reinforced by solid ethics, extensive knowledge and valuable experience, which makes us an astute, results-oriented leader in our field.

Our competitive edge lies in our ability to assemble top level teams for any type of project in the mining, construction and infrastructure industries.

Ready to find out how we can partner with your business?

Meet Our Team

Our team of engineers, project managers and consultants have over seven decades of combined industry experience have the capacity and ability to strategically plan and successfully coordinate complex operations.


Jaco Vosloo
Managing Director

B.Eng (Mech), M.Eng (MEM)
Expertise: Mechanical / Project Management

Rohann Schnetler

B.Eng (Mech), M.Eng (MEM)
Expertise: Mechanical / Project Management


Gerhard de Beer

B.Eng (CHEM)
Expertise: Operations & Efficiency Enhancements

Louis Wentzel

B.Eng (CHEM), M.Eng (CHEM)
Expertise: R&D, Design and Laboratory Work

Paul Cilliers

ECSA PrTechEng
Expertise: Infrastructure Engineering

Craig Sweet

B.Eng (CHEM), MSc (ENG)
Expertise: Process Metallurgist

Henko Terblanche

Expertise: Project Engineering

Arno Koolmees
Trevor Dzapatsva
Jnr. Mech Engineer
Renier Venter
Process Engineer in training

Design Office:

Wilhelm Coetzer
Snr. Structural & Mech. LO Draughtsman

Expertise: Bulk Material Handling

Pierre Vosloo
Snr. Structural & Mech. LO Draughtsman

Expertise: Mechanical Design & Process Plant LO

Erick Sahling
Snr. Structural & Mech. LO Draughtsman

Expertise: Bulk Material Handling

Lucinda Koolmees
Structural, Mech. & Piping Draughtsperson

Expertise: Mechanical Design & Process Plant LO

Armand Marais
Structural & Mech. LO Draughtsman

Expertise: Mechanical Design & Process Plant LO

Dehan Serfontein
Mid-level mechanical & piping
lay-out draughtsman
Expertise: Mechanical Design & Process Plant LO
Dirk Coetzee
Snr. Mechanical Draughtsman

Construction Management:

George Albertyn
Snr. Construction Manager
Jan Loots
Snr. Construction Manager Multi-Discipline Construction Expert
Brandon Malherbe
Quality Manager
Sifiso Nyandeni
Mech Supervisor
Jaco Calitz
Construction Manager Structural, Mech. & Piping

Project Support Services:

Rene' Vosloo
Office Manager
Ashleigh Stellenberg
Document Control
Thinus Bruyns
Crizelle Booysen

Our Services

G4eps offers services specially designed to provide the most efficient solutions to each client’s needs, be they studies or projects. The key to our success is the quality and experience of our staff. Our staff complement covers the following core services:

Project Management

At the commencement of each project, the project execution strategy must be defined. Project management has become a discipline in its own right world-wide, requiring a specific mix of technical know-how, meticulous organisational abilities, as well as communication, leadership and interpersonal skills.


From conceptual development and initial evaluations, through to detailing and execution, G4eps can assist with all your mineral engineering, process design and engineering needs. The design team includes civil, structural, mechanical, electrical, instrumentation software and piping engineers along with the relevant draughtsmen. A team is designated for each project and a close working relationship between this team and the client ensures that the highest possible engineering standards are attained and applied.

Design Engineering

Modern CAD facilities are utilized that include AutoCAD and Inventor. The use of these systems ensures that design is completed efficiently. By implementing modern 3D design packages such as Autodesk Inventor, design errors are minimized, reducing time lost during construction. Our design service includes civil and structural design as well as draughting design and detailing of infrastructure services, such as earthworks, roads, stormwater and sewage.


Our experienced team has a wealth of hands-on knowledge to ensure the construction portion of the project is executed safely and efficiently. G4eps’s teams have commissioned processing plants throughout Africa and the experience they have gained ensures that commissioning is completed efficiently. Our procurement and logistics personnel work closely with our plant design and construction teams to ensure that all the cost and schedule requirements of our clients are clearly understood.

Feasibility Studies

G4eps has extensive experience in conducting studies, from order of magnitude estimates to full bankable feasibility studies that can be utilised to obtain project financing. A comprehensive solution is provided by liaising with metallurgical test work specialist and other consultants that might be required. We can provide everything from contract Administration and quantity surveying, to cost estimates and feasibility studies.


G4eps has experience in the refurbishment and re-commissioning of dormant or damaged process work. Refurbishment of structural steel, civil work and all other plant or infrastructure can be undertaken by our skilled staff. G4eps also has extensive experience in restoring and re-commissioning second-hand or refurbished equipment.

Our Clients

Our Numbers

Projects Completed
Projects In Progress
Bulk Material Handling Systems
Flotation Plants
Thickener Circuits
Aluminium Furnace Facility
Overland Conveyors
Overland Piping
Chrome Spiral Plants

Our Projects

We are proud of our exemplary track record, and our long list of happy clients. Below, we showcase some of our completed projects, as well as some that are currently in progress.

Current Projects

Completed Projects



Contact Us

Our consultants are standing by to see how we can assist in your next project. Please feel free to reach out to us on the details below to discuss your specific needs.

Online Enquiry

Please fill in the short form below and one of our consultants will contact you to discuss your needs.