aurubis
Basic Engineering design of a black mass hydrometallurgical Process Plant.
Delivering process engineering and metallurgical solutions accross Africa and Europe, Mulltron offers process design, test work oversight, optimisation, and owners team support with a modern, results-driven approach.
Mulltron is an engineering design house, founded by Danie Theron and Bradley Müller, the company applies over 15 years of combined experience to deliver practical, standards-aligned solutions for complex projects.
Our team comprises of a new generation of engineers, integrating established design principles with modern technology, and offering flexible engagement models that adapt to client’s needs. Whether acting as an internal process partner or an external embedded owner’s team, Mulltron ensures technical precision, efficiency, and accountability at every stage.



Development of process flowsheets, mass and energy balances, equipment sizing, and plant layouts for new or existing operations.

Technical and project representation, including management, procurement, site supervision, and quality control.

Design of process improvement and circuit modifications enhancing plant performance and reduce operating costs

Independent assessments of existing operations to identify bottlenecks, risks, and improvement opportunities.

Coordination and management of laboratory campaigns, data interpretation, and integration of results into engineering deliverables.
Mulltron’s portfolio includes work across Africa, Europe, and beyond.
Our team delivers technically sound solutions for both primary resources and complex secondary processes, from concept studies to plant operation. Mulltron operates across Africa, Europe and South America with experience covering:
We support full-cycle development across copper, cobalt, gold, and platinum operations, from early-stage test work through to plant optimisation and expansion studies.
Our specialists work across critical battery value chains, including lithium, nickel, manganese, and cobalt, to improve recovery efficiency and develop scalable processing routes.
Mulltron provides technical guidance on REE separation, beneficiation, and refinery design, supporting both emerging and established rare earth projects globally.
We deliver process-driven solutions for complex hydrometallurgical, pyrometallurgical, and chemical refining circuits, ensuring safe, efficient, and commercially robust outcomes.






To discuss upcoming projects or technical requirements, please reach out to our regional offices.
South Africa / Africa
Bradley Müller – +27 82 878 4651
Belgium / Europe
Danie Theron – +32 474 84 06 83