SMM4 23: today SMM cobalt oxide quotation 17-175000 yuan / ton. Orders from lithium cobalt battery plants and materials factories fell to varying degrees in May, demand for cobalt oxide weakened, and manufacturers struggled to make prices. The market is concerned about whether South Africa will continue to "seal off the country" next week, judging the impact of the raw material end on the future, to carry out the May production scheduling plan. According to feedback from a cobalt tetroxide manufacturer, if the raw material end continues to delay, May may be adjusted to reduce the operating rate to balance the raw material consumption in June. SMM will continue to pay attention to raw materials and spot market transactions.