Rio Tinto Group has pulled more than a dozen potential bidders into a bidding war over its U.S. assets that mine boron, a critical mineral for batteries and aerospace. The company’s California operations currently supply about 20 % of global boron demand, making them a strategic target in a tightening supply market for current trends in 2024.

Interest in the assets comes amid growing U.S. policy pushes to secure domestic sources of critical minerals after supply disruptions in 2023. A competitive bidding round could drive a premium price, potentially exceeding a billion dollars in transaction value, and signal a shift toward reshoring key supply chains in advanced manufacturing for electronic systems today.

The bidding process is expected to unfold over the next few weeks, with Rio Tinto likely setting a minimum price that reflects the strategic importance of boron. Analysts warn that a sale could consolidate ownership under a single entity, tightening control over a mineral essential to green‑energy technologies in the next generation of clean energy efforts.

Stakeholders in the mining and technology sectors will watch the outcome closely, as a finalized deal could set a benchmark for future critical‑mineral transactions. The current interest underscores the strategic value of boron and the urgency for companies to secure reliable supply chains in a volatile global market in 2025 today for the next generation.