A new US startup, Supra Elemental Recovery, has developed a sponge-like filter to extract high-purity critical minerals from industrial waste, offering a more secure and sustainable solution compared to overseas mining. The University of Texas has contributed to the funding and development of the cartridge, which is designed to be reusable and environmentally friendly. The technology has shown promising results, with investors backing the project. This innovative approach could potentially revolutionize the extraction and refining of critical minerals needed for EVs and solar cells. The Supra team is working on a commercial-level demonstration later this year, aiming to provide U.S.-based manufacturers with a sustainable source of critical minerals.