Gauteng Refinery Pty Ltd : About Us Gauteng Refinery is part of a group of companies which have been active for over 30 years in precious metals beneficiation throughout Africa. It is in the business of recovering and refining gold and silver, and the platinum group metals: platinum, palladium, rhodium, ruthenium, iridium and osmium. The company is a technology-driven African organisation which maximises the continent’s precious metals supply chain from source to end user in a responsible and sustainable manner. We are a well-established organisation with a service offering that encapsulates trust, transparency and technical excellence.