Critical Minerals Consulting

Downstream Consulting's expertise in processing of critical minerals and development of business cases

John Ganser

11/11/20254 min read

Navigating the Critical Minerals Revolution: Why Deep Technical Expertise Matters More Than Ever

How 40 years of metallurgical innovation and project delivery positions Downstream Consulting in the forefront of Australia's critical minerals opportunity

The global race for critical minerals has never been more intense. As nations scramble to secure supply chains for rare earths, lithium, and other strategic materials essential for the energy transition, one thing has become crystal clear: success demands more than just good geology – it requires world-class technical expertise to transform ore into high-value products.

Having spent over four decades at the intersection of metallurgical innovation and project delivery, I've witnessed firsthand the difference that deep technical knowledge makes between a promising resource and a profitable operation. Through Downstream Consulting, I'm now focused on helping the next generation of critical minerals projects navigate this complex landscape.

The Critical Minerals Challenge: It's Not Just About Finding the Resource

Many companies are discovering, having a world-class resource is only the beginning. The real challenge lies in:

🔬 Processing Complexity: Rare earth processing isn't like processing gold or iron ore. It requires sophisticated hydrometallurgical processes, precise solvent extraction circuits, and deep understanding of element chemistry. A single misstep in flowsheet design can mean the difference between success and failure.

📊 Economic Viability: I've seen too many projects fail, not because the technology didn't work, but because the economics didn't stack up. Through my work on projects ranging from Lynas' Kalgoorlie facility, Iluka’s Eneabba RE Refinery and Arafura's Nolans project, I've learned that optimizing both CAPEX and OPEX from day one is non-negotiable.

🏛️ Regulatory Navigation: Critical minerals processing, particularly rare earths, comes with unique regulatory challenges. From radiation management to environmental approvals, the pathway to production requires expert navigation of complex regulatory frameworks.

Real-World Success Stories: From Concept to Commercial Reality

Transforming Monazite into Nine Separated Products at Iluka

At Iluka's Eneabba Rare Earth Refinery, we didn't just develop a process – we created a complete value chain from monazite feedstock to nine individual rare earth products. This wasn't about applying off-the-shelf technology; it required innovative approaches to roasting, hydrometallurgy, and solvent extraction that pushed the boundaries of conventional processing.

Key lesson learned: Success in rare earths demands thinking beyond the first product. The real value often lies in the separation and purification stages that many overlook during feasibility studies.

Securing R&D Funding at Arafura Resources

During my tenure at Arafura, we didn't just develop technology – we fundamentally reimagined how rare earth processing could be done more efficiently. This resulted in significant government R&D initiatives and process improvements that delivered significant cost savings improving the project’s viability.

The breakthrough: By challenging conventional wisdom and partnering with international R&D institutes, we developed processes that others said couldn't be done economically in Australia.

Building Partnerships Across the Value Chain

From working with Chinese R&D institutes to managing international technology providers, I've learned that success in critical minerals requires a global perspective with local execution excellence.

Why Technical Expertise Is Your Competitive Advantage

In today's critical minerals sector, three factors separate successful projects from the rest:

1. Technology Selection and Optimization

Every ore body is unique. What works for Mountain Pass won't necessarily work for Mount Weld. Through Downstream Consulting, I help companies:

  • Select the right processing technology for their specific mineralogy

  • Optimize flowsheets to minimize CAPEX and OPEX

  • Avoid costly mistakes that come from applying generic solutions

2. Regulatory and Stakeholder Management

Having led approvals for multiple rare earth projects in Australia, I understand that regulatory success requires more than just compliance – it requires building trust with regulators, communities, and stakeholders. This means:

  • Developing robust environmental management frameworks from day one

  • Addressing radiation concerns proactively and transparently

  • Creating stakeholder engagement strategies that build social license

3. Business Case Development That Stands Up to Scrutiny

Boards and investors demand robust business cases. Through my experience developing and reviewing dozens of feasibility studies, I help companies:

  • Build realistic economic models that account for processing complexity

  • Identify and mitigate technical risks before they become commercial problems

  • Present compelling investment cases that secure funding

The Green Revolution: Where Critical Minerals Meet Sustainability

As we pivot toward a low-carbon economy, the demand for critical minerals will only intensify. But tomorrow's winners won't just be those who can produce these materials – they'll be those who can do so sustainably.

Currently, I'm developing capabilities in green iron making technologies, integrating renewable energy into processing operations, and optimizing water usage in hydrometallurgical circuits. The future belongs to those who can deliver critical minerals with minimal environmental impact.

Looking Forward: Critical Minerals Opportunity

Politically we have a unique opportunity to develop projects for critical minerals processing. We have the resources, the technical capability, and increasingly, the political will. What we need now is to execute with precision.

Through Downstream Consulting, I'm committed to helping companies and investors navigate this opportunity. Whether it's:

  • Developing a rare earth processing flowsheet

  • Managing a feasibility study

  • Securing regulatory approvals

  • Optimizing an existing operation

  • Conducting technical due diligence

The goal remains the same: transforming critical mineral resources into sustainable, profitable operations that strengthen global supply chains.

The Bottom Line: Experience Matters

In critical minerals processing, there are no shortcuts. Success demands deep technical knowledge, practical experience, and the ability to navigate complex challenges. With over 40 years in the industry, five patents, and a track record of delivering billion-dollar projects, I've learned what works – and perhaps more importantly, what doesn't.

If you're developing a critical minerals project, conducting due diligence, or looking to optimize existing operations, let's connect. The energy transition depends on getting critical minerals right, and getting them right demands expertise you can trust.

Ready to unlock the value in your critical minerals project?Contact Downstream Consulting for strategic advisory services that transform technical challenges into commercial opportunities.

📧 jganser@downstreamconsulting.com.au
📱 +61 417 971 681
📍 Perth, Western Australia

About the Author
John Ganser is a Chartered Professional Engineer and Director of Downstream Consulting Pty Ltd. With over 40 years of experience in metallurgical processing, project development, and technology innovation, he has led major rare earth and critical minerals projects for companies including BHP, Lynas Corporation, Iluka Resources, and Arafura Resources. John holds five patents in metallurgical processing and has secured over A$26 million in R&D funding for technology development.