5E Advanced Materials Inc. (NASDAQ: FEAM) announced on February 4 2026 that it will pursue commercial production of ferroboron, an iron‑boron alloy that serves as a key boron additive in specialty steel and as a feedstock for neodymium‑iron‑boron (NdFeB) magnets.
The company will leverage its Fort Cady borate project in Hesperia, California, which is already producing boric acid at a projected 90,000 tons per year by mid‑2026. Ferroboron production will follow once technical validation, commercial alignment, and financing are secured; the company has indicated that the first commercial output of ferroboron could begin in late 2027, contingent on successful pilot‑scale testing.
Ferroboron is critical to the U.S. magnet supply chain because NdFeB magnets—used in electric‑vehicle motors, wind‑turbine generators and defense systems—require high‑purity boron. The U.S. currently imports virtually all ferroboron from China and Turkey, creating a strategic vulnerability that 5E’s domestic production would mitigate. The move aligns with the federal critical‑minerals strategy, which prioritizes on‑shoring of key inputs.
Financially, 5E recently closed a $36 million public offering on February 3 2026 and saw a 29.2% stake from BEP Special Situations IV after a $4 million purchase on February 2. These capital injections provide a buffer for the estimated $50–$70 million investment needed to build a ferroboron plant, though the company has not yet disclosed a definitive cost or financing plan. The initiative is expected to create a new revenue stream that could offset the company’s current reliance on boric acid sales.
CEO Paul Weibel emphasized that the Fort Cdy project “anchors a secure domestic boron supply chain for generations to come.” He added that the ferroboron effort will position FEAM as a strategic partner for U.S. magnet manufacturers, potentially opening contracts with automotive, renewable‑energy and defense customers. The company’s management signals confidence that the project will enhance long‑term competitiveness while addressing a critical national‑security supply‑chain gap.
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