China's Gallium & Germanium Export Controls Tighten Supply for Compound Semiconductor Wafers
Recent updates to China's export controls on gallium and germanium are beginning to constrain the global supply of critical compound semiconductor wafers. This is forcing manufacturers to reassess sourcing strategies and potentially invest in alternative extraction methods, impacting long-term capacity.
Effective August 2023, China implemented export restrictions on gallium and germanium and their related compounds, requiring exporters to obtain licenses from the Ministry of Commerce. These controls, initially introduced with a grace period, are now showing their full impact on the global supply chain for compound semiconductors. Gallium and germanium are pivotal for a wide array of high-performance components, including 5G base stations, electric vehicle power electronics, and advanced radar systems, as well as being primary constituents in technologies such as GaN and GaAs wafers.
While initial market reactions saw some stockpiling and diversified sourcing efforts, the sustained nature of these controls is now pressuring manufacturers. Producing compound semiconductor wafers from raw materials is a highly specialized and capital-intensive process. The scarcity or increased cost of these foundational elements directly translates into higher production costs and longer lead times for wafers, subsequently affecting components like RF filters, power amplifiers, and LED substrates. Procurement teams are reporting difficulties in securing consistent, large-volume shipments of precursor materials from non-Chinese sources at competitive prices.
Capacity expansion challenges are emerging as a direct consequence. Western nations and allies are exploring domestic production capabilities for gallium and germanium, but establishing new mines, refining facilities, and wafer fabrication plants is a multi-year endeavor. Existing facilities outside China are often not scaled to meet the sudden increase in demand that has arisen since the export controls were instituted. This has led to a bottleneck in the upstream supply chain, slowing the potential ramp-up of compound semiconductor manufacturing in regions aiming for greater self-sufficiency.
The long-term implications for capacity are significant. Without reliable and diversified sources of gallium and germanium, manufacturers face limits on their ability to expand production of crucial compound semiconductor devices. This impacts innovation and deployment in strategic sectors such as telecommunications, defense, and renewable energy. Investment in recycling technologies and exploration of new primary deposits are underway, but these are long-term solutions that will not alleviate immediate capacity constraints. The market is bracing for continued supply tightness and potential price volatility for compound semiconductor wafers through late 2026 and into 2027.