Germanium · Origin deep dive

Units from Yunnan lignite and zinc-smelter recovery circuits export through Shanghai and southern container ports under licence.

Zone-refined germanium ingot and dioxide, cut to 5N-plus for fiber-optic tetrachloride and infrared-optics blanks.

Kilogram-scale containerized or air parcels each requiring MOFCOM dual-use licences since August 2023, with defense-linked buyers effectively barred.

Fiber-optic preform makers, IR thermal-imaging optics houses, satellite solar-cell producers, and PET-catalyst chemical users.

No crop-style season; quarterly contracts dominate, with licence-approval queues now the binding constraint on delivery timing.

Live Chinese export controls and the December 2024 US-directed ban make every shipment a licensing event with veto risk.

Supply anchors on Umicore's Olen circuit in Belgium and Teck's Trail refinery feed, cleared through Antwerp-Rotterdam and Pacific-coast gateways.

High-purity ingot, dioxide and IR-grade blanks with Western chain-of-custody, qualified for defense thermal-imaging programs.

Delivered lots from producer plants and bonded stocks, moving by secure courier with long-term contract volumes prioritized over spot.

Defense IR-optics primes, fiber-optic manufacturers, and space solar-cell producers who must document non-Chinese provenance.

Contract-cadence driven with defense procurement cycles setting demand, plus restocking spikes after each Chinese control escalation.

Ex-China refining depends on limited zinc-smelter feed, so premiums stay extreme and stocks thin whenever Chinese flow stalls.

Scrap loops run through Umicore in Belgium and North American recyclers, drawing spent optics and fiber scrap from global collection networks.

Reclaimed germanium re-refined to optical and electronic grade, with recycling covering a meaningful share of Western consumption.

Reverse-logistics collection of window blanks, lens scrap and fiber draw waste, consolidated into small containerized refinery feed lots.

The IR-optics and fiber producers themselves via closed-loop tolling, plus refiners selling reclaimed units into the open market.

Scrap generation follows optics and fiber production runs, so recycled supply lags manufacturing activity rather than any calendar season.

Recycling cannot scale beyond available scrap pools, leaving it a buffer rather than a substitute if Chinese exports halt outright.