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5E Advanced Materials Announces Substantial Resource Upgrade

5E Advanced Materials (FEAM) | November 19, 2025

By Fiona Wilson

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5E Advanced Materials announced a significant increase in borate and lithium resources at the Fort Cady Project in California.

Measured and indicated borate resources increased by 61%, while lithium resources saw a 54% increase.

The upgraded resources provide expansion optionality and solidify 5E's position as a potential commercial borate producer.

Total Measured and Indicated Borate Resources Increase

Measured and indicated borate resources increased by 61% at the Fort Cady Project.

Total Measured Lithium Resources Increase

Measured lithium resources increased by 170%, showcasing growth potential in the lithium sector.

Resource Life and Expansion Optionality

The implied resource life of 217 years and the retention of expansion optionality highlight long-term value for 5E Advanced Materials.

  • The resource upgrade positions 5E as a key player in the borate and lithium markets, with the potential to anchor a secure domestic supply chain.
  • By unlocking strategic optionality, 5E is well-positioned to solidify its role as America's leading boron supplier for future generations.

5E Advanced Materials' resource upgrade at the Fort Cady Project marks a significant milestone towards becoming a prominent boron supplier and underscores the company's commitment to long-term growth and sustainability in the critical minerals industry.