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The cobalt carbonate price spike is also a cost-push story. DRC royalty hikes from 2% to 10% add a political premium that flows directly into intermediate chemical prices. Buyers should watch Indonesian HPAL projects as a supply-side hedge — Chinese firms like Huayou are already shifting feedstock sourcing to Southeast Asia to reduce Congo dependence.
For traders, the carbonate-to-tetroxide spread is a useful arbitrage signal. When tetroxide prices hold firm while carbonate softens, it indicates battery precursor demand is absorbing supply. Currently the 404 yuan/kg tetroxide price versus 222 yuan/kg carbonate implies healthy downstream margins, but watch for inventory builds in the ceramics and catalyst sectors that could pressure carbonate independently of battery demand.
Cost competitiveness will define winners in this cycle. CMOC Group produces cobalt at roughly 50,000 yuan per tonne, allowing it to survive and expand even at cycle bottoms. At 300,000 yuan prices, only low-cost producers like RTR and CNMC remain profitable. This is analogous to the lithium carbonate market where Salt Lake's cost advantage insulates it from price swings.