Cobalt · Origin deep dive

LME-listed warehouses in Rotterdam, Baltimore and Singapore anchor delivery, fed by Glencore Nikkelverk, Vale Long Harbour and Chinese refiners.

Cut cathode or briquettes at 99.8% Co minimum, conforming to LME cobalt contract specification rather than chemical-grade sulphate.

Metal moves in drums and big bags by container; warehouse warrant transfers often replace physical movement between trading houses.

Aerospace superalloy mills, hard-metal and magnet producers, plus traders arbitraging metal against the sulphate and hydroxide payable chain.

Little true seasonality; flow follows quarterly aerospace contract rounds and periodic Chinese strategic-reserve purchase tenders that can absorb surplus metal.

Chinese SRB stockpiling distorts visible balances, while DRC hydroxide oversupply and refinery conversion swings whipsaw the metal-sulphate spread.

Refined in Zhejiang and Jiangsu hubs like Quzhou and Tongxiang; export lots containerize through Shanghai and Ningbo when arbitrage opens.

Battery-grade cobalt sulphate around 20.5% Co with tight magnetic-impurity limits, priced as a premium or discount to metal.

Mostly domestic truck delivery from refiner to precursor plant; hydroxide feed arrives seaborne from DRC and Indonesia before conversion.

Precursor-cathode makers CNGR, GEM and Huayou feeding NCM lines for CATL, LGES and other cell producers.

Follows quarterly cathode contract resets, year-end EV production pushes and the Lunar New Year slowdown in precursor operating rates.

LFP chemistry share erodes cobalt intensity, while DRC export suspensions can shock hydroxide feed costs and squeeze refiner payables overnight.

Kola division output moves through Murmansk and St Petersburg, with historic refining links to Harjavalta in Finland now curtailed.

Electrolytic cobalt cathode of 99.35% minimum, a nickel-circuit byproduct rather than a dedicated battery-chemical stream.

Self-sanctioning reroutes units eastward to Chinese and Asian buyers, with payment channels and shipping insurance the practical constraints.

Chinese traders and refiners dominate offtake; most Western superalloy and battery buyers avoid new Russian-origin commitments.

No meaningful seasonality; flows track sanctions posture and Nornickel's nickel production schedule rather than any demand calendar.

The 2024 LME and UK-US restrictions on new Russian metal, plus escalation risk, keep discounts wide and buyers cautious.

Ships from industrial-park jetties at Morowali, Obi Island and Weda Bay built alongside the HPAL plants themselves.

Mixed hydroxide precipitate carrying cobalt alongside nickel, sold as a payable percentage of the metal reference price.

Bagged MHP moves in containers to Chinese refiners for separation into sulphate; some integrated conversion is emerging onshore Indonesia.

Chinese refiners and precursor groups Huayou, GEM and CNGR, many of them equity partners in the HPAL projects.

Weak seasonality beyond quarterly payable negotiations; tropical wet-season downpours occasionally slow jetty loading and site logistics.

Relentless HPAL expansion delivers cobalt as an unpriced byproduct, while Indonesian export policy and tailings-ESG scrutiny hang over the model.

Trucked from Katanga through Kasumbalesa to Durban or Dar es Salaam, with the Lobito rail corridor emerging as an alternative.

Crude cobalt hydroxide around 30-40% Co, an intermediate priced as a payable percentage of the standard-grade metal quotation.

A 2,500-kilometre trucking chain with chronic border congestion at Kasumbalesa; bagged hydroxide containerizes at the coast for China.

Chinese refiners take the bulk via CMOC and Glencore offtakes, converting hydroxide into sulphate for the precursor chain.

The November-to-March wet season slows Copperbelt road corridors and border throughput, tightening spot hydroxide availability into the second quarter.

Kinshasa's 2025 export suspension and quota regime showed policy can halt seventy percent of supply; artisanal volumes swing with price.