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Defdex

Supply-chain input · Material

Germanium

Metal used in infrared optics, fibre optics and some semiconductors.

HighMaterial

Constraint

Why supply is constrained

High

USGS calls global germanium data limited but names China the leading producer and exporter of germanium metal; US net import reliance is above 50%. China licensed exports from August 2023 and banned exports to the US in December 2024 (suspended November 2025 to November 2026). Western supply comes from zinc-refinery by-products (Teck at Trail, Umicore recycling).

Producers2

Capacity and global share as reported; shares from different years and sources may not add up. Bars compare producers on this page only.

Dependencies

Upstream · needs · 0

No upstream inputs recorded.

This input

Germanium

High

Downstream · needed by · 1

Upstream: what this input is made from or processed with. Downstream: what is made from it.

Facilities2

Trade controls2

News1

Sources6

Supply chain2

  1. 1

    U.S. Department of Defense · Apr 16, 2024 · Supports Organization input

    “an award of $14.4 million via the Defense Production Act Investment (DPAI) Program to 5N+ Semiconductors (5N Semi) to sustain and expand the capability to produce germanium substrates”
  2. 2
    CompanyGermanium

    Teck Resources · Supports Input, Organization input

    “Teck is one of the world's largest integrated germanium producers. Germanium-bearing concentrates are processed at our integrated lead/zinc refinery in Trail.”

Trade controls4

  1. 3

    Ministry of Commerce of the People's Republic of China · Nov 9, 2025 · Supports Trade control

    “经批准,自即日起至2026年11月27日,商务部公告2024年第46号…第二款暂停实施。”
  2. 4

    Ministry of Commerce of the People's Republic of China · Dec 3, 2024 · Supports Trade control

    “二、原则上不予许可镓、锗、锑、超硬材料相关两用物项对美国出口;对石墨两用物项对美国出口,实施更严格的最终用户和最终用途审查。”
  3. 5

    Ministry of Commerce of the People's Republic of China · Jul 3, 2023 · Supports Trade control

    “八、本公告自2023年8月1日起正式实施。”
  4. 6

    U.S. Geological Survey · Supports Input, Trade control

    “China continued to be the leading global producer and exporter of germanium metal in 2024.”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.