China is the leading producer of germanium, a metal with no dedicated mines. What it is, where it goes, and why supply is tight.
Last updated: October 2026
Germanium is a brittle, silvery-white metalloid recovered as a byproduct of zinc ores and, to a smaller extent, copper ores, plus recycling. There are no germanium mines. China is the leading global producer and exporter of germanium metal, and control of germanium is geopolitical leverage over fibre optics, infrared systems and space solar cells.
| # | Country | Share |
|---|---|---|
| 1 | China | About 60% - leading producer |
| 2 | Russia | Small |
| 3 | United States | Small - recycling + byproduct |
| 4 | Belgium | Refining / recycling |
| 5 | Canada | Refining / recycling |
| 6 | Germany | Refining / recycling |
Global germanium refinery production and recycling data are limited, and available estimates are difficult to verify (USGS). The roughly 60% figure for China is a best estimate from USGS-based data; a Nordic geological survey summary put China's refinery share at 68% in 2021.
Germanium is a brittle, silvery-white metalloid recovered as a byproduct of zinc ores and, to a smaller extent, copper ores, plus recycling. There are no germanium mines. It is prized for its optical and semiconductor properties: a high refractive index and transparency to infrared light.
Fibre optics (germanium dioxide and tetrachloride in glass for data networking and telecommunications), infrared optics (lenses for commercial and government systems), semiconductor substrates for multijunction solar cells used in space, radiation detectors, and germane gas for semiconductor and solar-cell manufacturing.
China, the leading global producer and exporter of germanium metal (USGS Mineral Commodity Summaries 2026). Commercial production or recycling is limited to a small group of countries: the United States, Belgium, Canada, China, Germany and Russia.
China accounts for roughly 60% of global germanium production, the leading share (USGS-based estimates). The USGS does not publish a precise country share, and notes that global refinery and recycling data are limited and difficult to verify.
High. China imposed export controls on germanium in August 2023 and banned germanium exports to the United States in December 2024. US imports of germanium metal fell 67% in 2025. In August 2025, the US Department of Energy announced $1 billion in initiatives for critical-mineral supply chains, including germanium refining.
Germanium is a byproduct metalloid with no dedicated mines. China is the leading producer, with roughly 60% of global output. It feeds fibre optics, infrared systems and space solar cells, and China's export controls since 2023 have made it a structural chokepoint.
Germanium is a brittle, silvery-white metalloid recovered as a byproduct of zinc ores and, to a smaller extent, copper ores, plus recycling. There are no germanium mines. It is prized for its optical and semiconductor properties: a high refractive index and transparency to infrared light.
Fibre optics (germanium dioxide and tetrachloride in glass for data networking and telecommunications), infrared optics (lenses for commercial and government systems), semiconductor substrates for multijunction solar cells used in space, radiation detectors, and germane gas for semiconductor and solar-cell manufacturing.
China, the leading global producer and exporter of germanium metal (USGS Mineral Commodity Summaries 2026). Commercial production or recycling is limited to a small group of countries: the United States, Belgium, Canada, China, Germany and Russia.
