실제로 이동하는 것
Cobalt is a by-product: it comes up because somebody wanted the copper. It leaves the DRC as a hydroxide filter cake on a truck, crosses two borders, sails to China, and is refined into the sulfate that goes into a cathode. The route is long, and the due-diligence obligations attached to it are the strictest of any material covered here.
- 소재
- Cobalt
- 유형
- Heterogenite, cobalt oxide ore, recovered alongside copper
- 출발지
- Democratic Republic of the Congo — Kolwezi, where roughly three-quarters of the world's cobalt originates
단계별, 국경별
Democratic Republic of the Congo · Kolwezi and the Lualaba belt 보유자 Industrial operators and artisanal miners (채굴업체)
Industrial mines, and a great deal of hand digging
Most cobalt comes from large mechanised copper mines. A material share is also dug by hand by artisanal miners and sold into the same processing plants, which is why chain-of-custody documentation matters here more than anywhere else on this site.
왜 이곳인가: The Copperbelt. There is no comparable cobalt resource being mined at this scale anywhere else.
Democratic Republic of the Congo · Hydrometallurgical plant 보유자 Operators (화학)
Leached out with the copper
Cobalt dissolves in the same acid leach as the copper, then is separated and precipitated as a hydroxide once the copper has been electrowon out.
나머지는 어떻게 되었는가: If the copper price falls far enough to close the mine, the cobalt stops too. Its supply follows copper economics, not its own.
왜 이곳인가: It shares a circuit with the copper because it shares an orebody with it.
Tanzania · To Dar es Salaam or Durban 보유자 Hauliers (트레이더)
The long haul
Bagged hydroxide is trucked 2,000 km or more to a port, crossing at least one border. Queues at the crossings routinely add days.
왜 이곳인가: There is no railway that does this job reliably. The road IS the supply chain.
China · Zhejiang and Jiangxi refineries 보유자 Refiner (정련업체)
Into a battery-grade salt
Redissolved, purified of nickel, copper, iron and manganese, and crystallised into cobalt sulfate heptahydrate — pink crystals to a very tight specification.
왜 이곳인가: This is the real chokepoint. Mining is spread across one country; refining is concentrated in another.
South Korea · Precursor and cathode plants 보유자 Cathode manufacturers (제조사)
Into the cathode
Co-precipitated with nickel and manganese sulfates into a precursor, then lithiated and calcined. Cobalt is what keeps the cathode's layered structure from collapsing as it charges and discharges.
왜 이곳인가: Cathode makers cluster near cell makers, who cluster near carmakers.
Germany · Wherever they are sold 보유자 Drivers (최종 사용자)
About 350 cars
At roughly 13 kg per pack for a mid-nickel chemistry, 4.5 tonnes of cobalt is a few hundred vehicles — and every one of them can be traced back, on paper, to the pit it came from.
나머지는 어떻게 되었는가: Cathode chemistry has been cutting cobalt for a decade — from a third of the cathode metal to under a tenth in high-nickel designs, and to zero in LFP.
왜 이곳인가: Substitution is the quiet counter-pressure on this entire route.
이것은 작업 예시이다. 공표된 출발 수량을 공표된 일반적인 수율 및 회수율에 따라 추적한 것이므로 비율은 검증 가능하다. 특정 선적 기록이 아니다. 경로 사실—어느 나라, 어떤 공정, 그리고 왜 해당 소재를 다른 곳에서 처리할 수 없는지—은 공개 보고를 바탕으로 정리되었다.