Leading Geological Consulting Company in Africa

About Us


A leading Africa-based geological consulting firm

MINROM specialises in mineral resource management (MRM), mineral exploration, 3D geological modelling and estimations. With offices in Johannesburg and Cape Town, MINROM operates throughout Africa. Our extensive experience in exploration and mining, our use of the latest technologies and our skilled geological staff places us in an excellent position to assist with all aspects of geology.

Oscar van Antwerpen

Founder of MINROM, Oscar is qualified in mineral resource management with 25 years of extensive experience. He performed fundamental functions within Gold Fields of South Africa and BHP Billiton. He is also a registered natural scientist, a member of the Geological Society of South Africa and is registered as a competent person to declare manganese, iron and graphite resources.

MINROM offers a range of mineral resource management services with expert skills and technical ability to transform a mineral resource into a viable project.

MINROM has experience in multiple commodities:

  • Manganese
  • Iron
  • Copper
  • Cobalt
  • Gold
  • Graphite
  • Lithium
  • Tin
  • Tantalum
  • Tungsten
  • Diamonds
  • Coal
  • REE’s
  • Nickel
  • Vanadium
  • Chrome
  • PGE’s
  • Silver
  • Silica
  • Lime
  • Aluminium
  • Base metals
  • Industrial minerals
  • Strategic minerals
  • Critical minerals
  • EV minerals
  • Precious metals
  • Gemstones
  • Our Qualities

    The MINROM Difference

    At MINROM, we pride ourselves on being agile, flexible, self-sufficient and independent. We own our vehicles, core cutters, geological field equipment and software. We are committed to having a strong and reliable in-house capacity.

  • Our Philosophy

    Maximize Project Value

    We work closely with geophysical, geostatistical and metallurgical experts to maximize project value. MINROM favours the phased approach to exploration programmes in order to limit clients’ and investors’ exposure and to maximise the geological knowledge obtained.

  • Quality, Health and Safety

    Zero Harm

    At MINROM we focus on best practices in safety and environmental management. We operate in accordance with the guidelines and procedures of the South African Council for Natural Scientific Professions (SACNASP).

Our Team

We have a remarkable, qualified team of specialists in the mineral resources industry. At MINROM, youthful energy and enthusiasm unite with age and experience. Combining tried and tested methods, with innovative ideas and technologies, enables MINROM to achieve the highest levels of proficiency.

Graham Duncan

Head of Resource Modelling & GIS

Franck Kolela

Exploration Geologist – DRC

Monique Maree

Junior Geologist

Jaco van den Berg

Head of Exploration

Tristan Stuck


Kaylin Steyn

Geologist in Training

Elmar Human

Senior Geologist Mineral Resource Management

John Orpen

Drill QAQC Consultant

Sullivan Terblanche

Modelling Geologist

Sean Nieman

Geological Modelling Specialist

Carina Swart


Yvane Stanford

Office Manager/Copy Editor and Translator

Zenie Janse van Rensburg

Group Marketing/Finance Coordinator


MINROM - Your Geological Partner

Ensuring your success in exploration, mining and hydrology projects.