Cobalt sulfate, tetroxide prices strengthen on near-term demand optimism

Expectations of stockpiling activity ahead of the Chinese National Day holiday (October 1-7) have boosted sentiment among suppliers, leading to higher spot quotations for battery raw materials, including cobalt sulfate and tetroxide. Fastmarkets’ assessment for cobalt tetroxide 72.6% Co min, delivered China rose to 200,000-210,000 yuan ($28,140-29,547) per tonne on Wednesday September 18, up 2.5% from…