Supply Chain

Cobalt Supply Chain: From Mine to Market

The cobalt supply chain is dominated by the Democratic Republic of Congo, which produces ~73% of global mined cobalt, primarily as a byproduct of copper mining. Artisanal and small-scale mining (ASM) accounts for 15-30% of DRC output and has drawn scrutiny for child labor and unsafe conditions, leading to supply chain due diligence requirements (OECD guidelines, EU Battery Regulation). After mining, cobalt hydroxide or concentrate is shipped predominantly to China, which controls ~80% of global cobalt refining capacity. Chinese companies (Huayou Cobalt, CNGR, GEM) convert cobalt intermediate into battery-grade sulfate or oxide for cathode precursor production. Indonesia is emerging as the second-largest cobalt source as byproduct of nickel HPAL operations. The supply chain faces dual risks: extreme geographic concentration in the DRC for mining and in China for refining.

Production Geography

Global Cobalt production is led by DR Congo, which accounts for approximately 73% of world output, followed by Indonesia. The full list of major producing nations includes DR Congo, Indonesia, Russia, Australia, Philippines. This geographic concentration means that disruptions in key producing regions can have outsized impacts on global supply and pricing.

Extraction Methods

Cobalt is extracted using the following primary methods:

• Industrial open-pit mining
• Artisanal and small-scale mining (ASM)
• Byproduct of copper/nickel mining

Processing and Intermediate Products

Cobalt is primarily sourced from Heterogenite, Cobaltite, Carrollite, Pentlandite (Ni-Co). After extraction, the raw material undergoes multiple processing steps including beneficiation, chemical treatment, and refining to reach the purity levels required by downstream industries. Typical ore grades range from 0.1-0.4% Co (copper-cobalt ores).

Key Supply Chain Participants

The Cobalt supply chain involves these major companies:

Supply Chain Vulnerabilities

Key vulnerabilities in the Cobalt supply chain include concentration of 73% of production in DR Congo, limited processing capacity diversification, and long lead times for new mining projects. The high supply risk rating reflects the severity of these concentration risks and the difficulty of rapidly establishing alternative supply sources.