Metals Movers (Argus series within Argus Media feed)
Metal Movers: Minor Metals in the Age of Artificial Intelligence
Why It Matters
As AI expands, the need for specialized minor metals will intensify, making their supply a strategic vulnerability for tech companies and national economies. Understanding these market dynamics helps investors, policymakers, and manufacturers anticipate price spikes, supply risks, and the importance of developing resilient, diversified sources for critical materials.
Key Takeaways
- •Gallium nitride boosts data‑center energy efficiency.
- •Export controls drive global gallium and germanium supply diversification.
- •Germanium prices surged over 200% amid fiber‑optic demand.
- •Tantalum demand rises; DRC supply remains volatile.
- •Recycling and government coordination essential for minor‑metal resilience.
Pulse Analysis
The surge in AI data centers is driving demand for minor metals beyond silicon. Compound semiconductors like gallium nitride (GaN) and silicon carbide replace traditional silicon power electronics, reducing heat loss and energy use. Nvidia’s 800 VDC architecture already uses GaN chips to improve rack efficiency. Gallium prices have jumped to about $2,500 per kilogram, up from $250 before China’s 2023 export controls, creating a two‑tier market and spurring new projects in Europe and the United States. These trends signal a strategic shift toward more resilient supply chains.
Germanium and indium phosphide face similar export‑control pressures. Germanium, vital for fiber‑optic cables linking AI servers, has more than doubled in price since early 2024, while China’s limits on indium phosphide curb supply of high‑speed photonic components. U.S. glassmaker Corning is expanding fiber‑optic capacity, and Europe is funding recycling and extraction to recover germanium from waste. Trade patterns are shifting; South Korea now imports more germanium from Canada, and commodity firms such as Trafigura are positioning themselves in these tightening markets. Such initiatives aim to reduce reliance on single-source imports and lower long-term costs.
Tantalum shows how a single metal can bottleneck AI hardware. Up to 25 tantalum‑based capacitors sit on an NVIDIA H100 board, and thin tantalum layers protect copper interconnects in advanced chips. Prices surged 170 % in Q1 2024 after a landslide at the DRC’s biggest mine, exposing geopolitical fragility. New sources in Mozambique, Ethiopia, and lithium‑by‑product projects in Australia and Brazil are emerging, but price volatility persists. Analysts stress recycling, cross‑border coordination, and material‑efficiency measures as essential to sustain AI‑driven growth. Together, these actions could moderate price spikes and ensure steady component availability.
Episode Description
In this episode Argus analysts examine how data centre growth for artificial intelligence is driving demand in some of the most exposed minor metal markets. Materials like germanium and indium phosphide are playing a key role in data transfer devices and optical connections within data centres, while gallium nitride power electrics are increasingly deployed to improve energy efficiency. But supply of these metals has been restricted by export controls and geo-political instability just as demand is beginning to boom.
Topics discussed:
The role of gallium nitride power electronics in AI data centre infrastructure and how the gallium market outside China could expand to meet demand.
How germanium and indium phosphide are used in high-speed data transfer and optical connections within data centres and how these markets are affected by China’s export control policies.
The supply constraints faced by the tantalum industry at a time when tantalum demand from the capacitor industry, chip makers, and energy sector is growing rapidly.
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