China's Rare Earths Chokehold: Diversifying Supply Chains and Processing

Understanding Rare Earths

• 💡 Rare earths are a group of 17 elements crucial for high-tech products like magnets and smartphones.
• 🧪 The term "rare earths" is a misnomer; they are not necessarily rare, but their processing is complex and often environmentally challenging.
• 🗂️ They are distinct from critical minerals, which is a broader category including elements like lithium, nickel, and copper.

China's Dominance in Processing

• 🇨🇳 China controls approximately 95% of global rare earth processing, despite mining only about 75-80% of the raw materials.
• 🏭 This dominance stems from a deliberate decision made by Western countries, including the US, to halt environmentally damaging industrial activities like mining and processing a quarter-century ago.
• ☢️ Rare earth processing involves significant use of acids and can produce radioactive byproducts due to the presence of uranium and thorium, requiring costly containment measures.

Innovations in Processing

• 🔬 Chemical vaporization is a more advanced high-temperature process being utilized.
• 🧲 Magnetic separation is a key technique in early-stage processing, with research exploring its expansion into more comprehensive processing.
• 🌱 Biological agents, specifically genetically engineered enzymes, offer a cleaner approach by selectively extracting elements without heavy reliance on acids.

Global Supply Chain Dynamics

• 🌍 While the ultimate objective for many countries is to establish an entire supply chain from rock to magnet domestically, this is economically unfeasible for most due to varying geological deposits.
• 🤝 An international marketplace for rare earths will persist, with countries partnering to secure resources and processing capabilities.
• ⚡ Energy intensity is a critical factor, as processing, metal making, and magnet making are highly energy-intensive, posing challenges for grid stability and end-user demands.

Attracting Investment and Government Intervention

• 💰 Mining investment faces hurdles due to long return-on-investment periods (20-50 years for copper mines) and a historical bias against funding "dirty" industrial processes.
• 📉 China's ability to manipulate global prices creates market uncertainty, making it difficult for new projects to be economically viable.
• 🛡️ Governments are intervening through measures like price floors (e.g., $110/ton for rare earth material) and direct equity stakes in strategic national security assets to stabilize the market and signal confidence to private investors.
• 🤝 Public-private partnerships are crucial, as an estimated $1 trillion is needed globally to establish a robust rare earth supply chain.

The Irreplaceability of Rare Earths

• 🧲 The core four rare earths (praseodymium, neodymium, terbium, and dysprosium) are essential for current magnet and metals supply chains, with no current substitutions.
• 🔋 Unlike lithium, which has a higher degree of substitutability, rare earths are here to stay in a wide range of applications, including conventional vehicles.