About Us

Our Journey

Our journey began in 2015, when our visionary founder, Dr. Ryno Pretorius, perceived the potential of intertwining cutting-edge technology and engineering to make a lasting impact on the world. A passionate advocate for sustainable resource extraction and environmentally-friendly processes, Dr. Pretorius laid the foundation for a company that puts sustainability and productivity hand in hand.

With an unwavering commitment to our vision, an innovative spirit, and a team of dedicated professionals, we’re reshaping the world of metal recovery and electrolysis processes. As we continue to push the boundaries of engineering and technology, we invite you to join us on this exciting journey.

At Free Radical Process Design, we’re not just designing processes; we’re designing a future where engineering and sustainability work in harmony. Together, we can create a world where industry growth and environmental protection are two sides of the same coin.

Welcome to our vision for the future.


Welcome to Free Radical Process Design.

Our Vision

Here at Free Radical Process Design, we envision a future where engineering plays a transformative role in enhancing human life. Our dream is of a world where metal recovery and electrolysis processes are not only impressively efficient but also tread lightly on our environment.

To actualize this vision, we dedicate ourselves to creating and developing revolutionary technologies. Our flagship innovation, the RotowinnerTM, a patented electrowinning system, stands as a testament to our commitment.

This pioneering system represents a significant stride towards realizing our vision, optimizing metal recovery, treating mine influenced water, softening water, and opening avenues for potential green hydrogen production.

Engineering for a Sustainable Future
Enhancing Lives through Innovative Engineering
Transforming Industries with Environmentally Friendly Technologies

Our Mission

Development of Cutting-edge Technology.
Commercialization and Promotion of the Rotowinner
Exploration of More Rotowinner Applications

Our mission is far more than words on a page; it’s a commitment that permeates every aspect of our work.

We’re on a mission to create, develop, and commercialize avant-garde technologies that equip industries with the tools they need to achieve sustainable growth.

We believe in the power of our RotowinnerTM system to transform industrial practices, facilitating a greener, more sustainable future.

Our Team

Our team at Free Radical Process Design is composed of passionate and talented individuals who share a common goal of driving innovation and making a positive impact on the world.

With diverse backgrounds and expertise spanning engineering, business management, project management, and IP development, our team is united by a shared commitment to excellence and pushing the boundaries of what is possible.

We foster a collaborative and inclusive environment that encourages open communication, creativity, and continuous learning.

By leveraging our collective knowledge and experience, we tackle complex challenges and develop groundbreaking technologies that address the most pressing issues of our time. Together, we are dedicated to creating a brighter future and leaving a lasting legacy through our work.

With years of experience and a dedicated team of experienced professionals and industry experts, we bring a wealth of knowledge and expertise to every project. Our diverse skill set allows us to approach technology development from multiple perspectives, ensuring comprehensive and robust solutions.

Passionate Minds. Innovative Solutions.
Collaboration. Excellence. Breakthroughs.
Diverse Expertise, United for Impact.


Picture of Dr. Ryno Pretorius

Dr. Ryno Pretorius

Founder | CEO & Managing Director | Lead Engineer

Picture of Hale Matsipa

Hale Matsipa

Non-Executive Director | Investments

Picture of Josua Oosthuizen

Josua Oosthuizen

Executive Director | Business Development

Picture of Fritz Ferreira

Fritz Ferreira

Non-Executive Director | Legal

Picture of Omphile Modibela Netshiozwi

Omphile Modibela Netshiozwi

Non-Executive Director | Intellectual Property

Core Technical Team

Picture of Dr. Gerard Puts

Dr. Gerard Puts

Snr. Process Engineer | Technical Expert | Facility Management

Picture of Dr. Inbanathan Govender

Dr. Inbanathan Govender

Snr. Process Engineer | Technical Expert

Picture of Faith Onyancha

Faith Onyancha

Chemical Engineer

Picture of Shana Conradie

Shana Conradie

Chemical Engineer

Picture of Maarifa Kidoge

Maarifa Kidoge

CTO | Snr. Process Engineer | Program Management

Picture of Hendrick Mojtele

Hendrick Mojtele

Installations & Maintenance


Sustainability is at the heart of everything we do at Free Radical Process Design. We recognize the urgent need to address environmental challenges and strive to create innovative solutions that drive sustainable development. 

Our focus is on developing cutting-edge technologies that not only deliver exceptional performance but also minimize our ecological footprint. From optimizing metal recovery processes to treating mine-influenced water and exploring clean energy options like Green Hydrogen, we are committed to creating a greener and more sustainable future. 

By integrating sustainability into our core values and practices, we aim to contribute to a thriving planet, healthier ecosystems, and improved quality of life for current and future generations.