How does it work? The organic compound, called β-cyclodextrin, acts as a molecular “host” that binds with gold ions in solution. This enables it to draw the gold out of the mixture of shredded circuit boards, leaving other base metals behind. The process occurs at room temperature and can be scaled up relatively easily, with the team estimating the method to be commercially viable within the next five years.
So why does this matter for Australia and for the gold industry more broadly?
For one, it reshapes how we think about gold. Australia is the world’s second-largest producer of mined gold, but as global attention shifts towards sustainability and resource circularity, secondary sources of gold (like e-waste) are becoming increasingly important. The ability to recover gold from old electronics using safe, scalable chemistry could complement traditional mining, reduce pressure on natural resources, and create new value chains.
The potential benefits go beyond the environment. By enabling small, decentralised recycling operations – especially in urban centres where e-waste is concentrated – this innovation could open up new industries, create jobs in advanced recycling and tech, and help Australia reduce its reliance on offshore waste processing. As it stands, only about 17.4% of global e-waste is currently collected and recycled properly. That leaves a huge opportunity gap.
And it speaks to something deeper about gold itself. Unlike many other metals, gold never wears out. It can be melted, refined and reused again and again without losing its properties. That makes it uniquely positioned for a circular economy, and uniquely worth recovering. Every gram we recycle is a gram we don’t need to mine, and every device we divert from landfill is a win for the environment.
This innovation won’t replace traditional mining – nor should it. But it highlights the gold industry’s evolving future, one where chemistry, circularity and sustainability are just as important as extraction. With strong research capabilities, a robust gold sector, and growing interest in green innovation, Australia is well placed to lead the way.
The next gold rush might not be underground. It might be in our hands, our homes, and increasingly in our science labs.
