Some situations call for an experienced, independent metallurgist.
This is where you find one.
Gwanda Consulting works exclusively for owners, investors and decision-makers — not for engineering firms
When do people call Gwanda Consulting?
When a flowsheet needs an independent challenge — not a rubber stamp.
When you're dealing with a major engineering firm and need someone who can cut through the complexity and tell you plainly what it means for your project.
When a board or investment decision hinges on whether the processing case genuinely stacks up.
When you need a plain-language technical assessment with no agenda behind it.
The person behind Gwanda Consulting
Brian Gerrell is a metallurgical engineer with more than 40 years of experience across gold, silver, copper, uranium, rare earths and many other commodities. He has held senior technical and management roles at Rio Tinto, AngloGold and Harmony Gold, and has worked across the full project lifecycle — from early concept through to commissioning, ramp-up and operational optimisation — on projects around the world.
He works independently, and exclusively for clients.
It’s time to take action…
If your situation calls for independent technical thinking and plain talk, a conversation costs nothing.