GAO Report Identifies Paths to Reduce US Critical Mineral Import Reliance

US Dependence on Critical Minerals

The United States relies significantly on imports for critical minerals essential to its battery and semiconductor industries. Minerals like lithium, gallium, and indium are crucial components, but their supply chains are vulnerable to disruptions. The Government Accountability Office (GAO) investigated how substitution and recycling technologies might mitigate this import reliance.

Near-Term Potential for Battery Minerals

For the battery industry, substitution and recycling technologies offer near-term potential to reduce import dependence. Battery recycling, which extracts minerals for reuse, could reduce imports of copper, cobalt, lithium, and nickel within 2 to 3 years. Additionally, using lithium iron phosphate (LFP) batteries for stationary grid energy storage could reduce imports of cobalt, manganese, and nickel in the same timeframe, though LFP batteries are less suitable for applications like long-haul electric vehicles due to lower energy density.

Challenges in Battery Recycling

Despite the maturity of battery recycling technologies, the US faces challenges in implementation. Experts informed the GAO that US battery recyclers lack sufficient capacity. Furthermore, available materials for recycling, known as feedstock, are often landfilled or exported for processing, hindering domestic recovery efforts.

Longer Horizon for Semiconductor Minerals

In contrast to batteries, most substitution and recycling technologies for the semiconductor industry are likely years away from maturity. Substitution for minerals like gallium and indium is unlikely to have a near-term effect on import reliance because alternative materials do not perform comparably. Industry experts indicate that substitutes will only be adopted when they match the performance of current semiconductor materials in intended applications. Technologies for recycling minerals from semiconductors also face significant challenges.

Addressing Supply Chain Vulnerabilities

The GAO's findings highlight differing timelines for reducing critical mineral import reliance across key industries. While battery recycling offers a more immediate pathway, requiring infrastructure development for collection and recycling, solutions for semiconductors are a longer-term prospect. Addressing these vulnerabilities is important for the stability and resilience of US technology sectors.