5E Advanced Materials Inc. has announced a substantial upgrade to its mineral resources at the Fort Cady Project in the Mojave Desert, near Newberry Springs, California. The company reported a 61% increase in measured and indicated borate resources and a 54% increase in lithium resources, with total measured and indicated lithium carbonate equivalent rising from 213,000 tons to 328,000 tons. The upgrade positions Fort Cady as the site of the largest reported measured and indicated borate resources in the United States, reinforcing its potential to serve as a secure domestic supply of critical minerals. The project offers an implied resource life of 217 years based on the first phase of production and retains optionality for future expansion. 5E Advanced Materials aims to leverage these resources to become a leading supplier of refined borates and critical minerals in the U.S.