South Korea Has Diversified Some Critical Minerals. The Hardest Dependencies Remain.

Why It Matters

China’s control over key inputs threatens the resilience of Korea’s semiconductor and battery supply chains, which are integral to U.S. and allied technology ecosystems. Reducing this dependency is essential for allied economic security and for maintaining competitive advantage in high‑value manufacturing.

Key Takeaways

• Gallium imports down to 26% China; now from Germany, US, Japan
• Indium dependence rose to 94% China, $86.5 million import value
• Graphite share from China at 71%, $207 million, threatens battery supply
• South Korea targets reducing overall import concentration to 50% by 2030
• FORGE platform lets allies coordinate strategic stockpiles and traceability standards

Pulse Analysis

South Korea’s export surge in 2026 underscores its dominance in semiconductors, electric‑vehicle batteries and advanced displays, yet the nation’s supply chain rests on a narrow suite of critical minerals. Data from the Korean Mineral Import Statistics (KOMIS) reveal that while overall import reliance exceeds 99.7%, the source concentration varies dramatically. Gallium, germanium and antimony have seen rapid diversification after Chinese export controls, with new suppliers in Germany, the United States, Japan, Canada and Thailand filling the gaps. These shifts illustrate how policy pressure can catalyze alternative sourcing when viable processing capacity exists abroad.

Despite these wins, three minerals remain perilously dependent on China. Indium, essential for transparent conductive layers in displays, is now 94.2% Chinese, representing $86.5 million of imports and a single‑source risk. Graphite, a cornerstone of lithium‑ion battery anodes, is 71% Chinese, amounting to $207 million annually, while tungsten—critical for specialty steels and electronic components—still sources 69.8% from China. The lack of diversified processing capacity for these materials means that any Chinese restriction could cascade through Korean manufacturers to U.S. and allied supply chains, amplifying geopolitical vulnerability.

Strategically, South Korea’s role as chair of the Minerals Security Partnership and its transition to the FORGE forum provides a rare diplomatic lever. Policy recommendations include locking in long‑term offtake contracts for diversified suppliers, expanding strategic stockpiles of indium, graphite and tungsten, and establishing traceability standards that verify smelter‑level provenance. By aligning with U.S. and Japanese partners, Seoul can push for enforceable “mini‑deals” that secure supply, protect investments, and facilitate workforce mobility. Achieving the 2030 goal of cutting overall import concentration to 50% will require coordinated allied action, robust domestic incentives, and swift implementation of these security measures.