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Semiconductor Critical Elements
A small set of elements underpins every semiconductor fab on the planet. Most are produced in commercial quantities in only a handful of countries -- and since 2023, China has placed export licensing requirements on the majority of them in direct response to US chip export controls. The table below covers supply concentration, named producers, and current control status as of Q1 2026.
Element Supply & Control Status
The table below covers the elements most directly implicated in semiconductor manufacturing, with current supply concentration estimates and export control status as of early 2026.
| Element | Primary Fab Use | China Share | Other Key Producers | Export Control Status (Q1 2026) | Risk Level |
|---|---|---|---|---|---|
| Gallium (Ga) | GaN power ICs, GaAs RF wafers, LEDs | ~80% refined; ~35 t/yr outside China | Germany, Japan, South Korea (minor); US secondary from zinc smelting | Licensed Aug 2023; US ban Dec 2024 suspended to Nov 2026 | Critical |
| Germanium (Ge) | SiGe transistors, IR optics, GeH4 CVD precursor | ~60% production; dominant refined share | Germany, Canada (Teck), US (minor) | Licensed Aug 2023; US ban Dec 2024 suspended to Nov 2026 | Critical |
| Tungsten (W) | Tungsten plug fill, CMOS interconnects, sputtering targets | >80% global production (USGS) | Vietnam, Russia, Canada | Licensed Feb 2025; exports down ~14% Jan-Sep 2025 | High |
| Indium (In) | ITO electrodes, InP wafers, InGaAs photodetectors | ~57% refined | South Korea, Japan, Canada | Licensed Feb 2025 | High |
| Antimony (Sb) | PCB flame retardants, infrared detectors | ~48% mine production; majority refined | Russia, Tajikistan, Australia | Licensed Sep 2024; prices +437% from pre-control levels | High |
| Rare Earths (Dy/Nd/Pr) | NdFeB magnets in fab equipment motors, ASML scanners, ion implanters | >90% processing; ~85% NdFeB magnet output | MP Materials (US), Lynas (Australia), Noveon Magnetics (US, sole domestic magnet maker) | 7 REEs licensed Apr 2025; Oct 2025 expansion suspended to Nov 2026; Apr controls remain | Critical |
| Neon (Ne) | Buffer gas in ArF excimer lasers for DUV lithography (~95% of gas blend by volume) | Not dominant -- steel-mill byproduct; historically Ukraine-concentrated | Ingas & Cryoin (Ukraine, ~50% global semi-grade); Linde (Texas); global air separation units | No controls; 2022 war halted Ukrainian output; neon prices 10x in China Mar 2022 | High |
| Tantalum (Ta) | DRAM/logic capacitors (Ta2O5 dielectric), BEOL diffusion barriers | Minor mine; significant processing (Ningxia Orient) | DRC (~40% mine output), Rwanda, Australia | No Chinese controls; conflict mineral risk from DRC sourcing | Moderate |
| Silicon (Si) -- semiconductor grade | Primary wafer substrate; polysilicon feedstock | ~80%+ solar-grade (GCL, Tongwei); Western producers dominate semiconductor-grade | Wacker Chemie (DE), Hemlock (US), REC Silicon (US/NO), Tokuyama (JP) | 2025 controls on 6N-9N polysilicon and CVD/crystal-growth equipment | Moderate |
| Copper (Cu) | BEOL damascene interconnects, electroplating, packaging | ~40% refined | Chile, Peru, DRC, US -- widely distributed | None | Low |
IEA Critical Minerals Outlook
The International Energy Agency's Global Critical Minerals Outlook 2025 found that for 19 out of 20 strategically important minerals, China is the leading refiner, with an average processing market share of approximately 70 percent. This concentration has intensified in recent years rather than diversifying. The IEA analysis notes that supply concentration risk is no longer theoretical -- the rolling export control actions from 2023 through 2025 have translated documented geographic concentration into observed supply disruptions and sustained price escalation across gallium, germanium, antimony, rare earth elements, and related materials.
Supply Chain Outlook
Building a new refining and processing ecosystem for semiconductor critical elements takes years. The capital and know-how requirements for rare earth separation, gallium refining from zinc smelter byproducts, and specialty gas purification are non-trivial. Most analyses suggest meaningful supply chain diversification at scale is a five-to-ten-year project under favorable policy conditions. In the interim, the semiconductor industry remains structurally exposed to Chinese export control decisions across most of the element categories covered on this page.
Cross-Network: ElectronsX Demand Side
Critical element demand is visible on the EX side as motor and drivetrain supply chain coverage, upstream materials analysis, and electrification ecosystem pages. The rare earth elements, gallium, and germanium, and particularly Neodymium Iron Boron (NdFeB), are constrained by Chinese export controls on this page flow directly into EV traction motors, humanoid robot actuators, power electronics, and industrial drives covered on ElectronsX. The pages below represent the demand-side signal that drives the SX supply chain dynamics described on this page.
EX: Motor & Drivetrain Supply Chain (NdFeB magnets, rare earth refining) | EX: Upstream Materials | EX: Humanoid Robot Supply Chain | EX: Supply Chain Convergence Map
Related Coverage
Raw Materials Overview | Materials & IP Hub | Critical Chemicals | Process Gases | Polysilicon Production | Silicon Wafer Production Overview | SiC Substrates & Epiwafers | China Bifurcation Spotlight | SiC Nine-Market Convergence Spotlight | Bottleneck Atlas