Dalian and Singapore iron ore futures dropped below $100/t on Tuesday, while spot prices slumped to the lowest in a week, pressured by renewed worries over Covid-19 curbs and steel output restrictions in top producer China. The most-traded January iron ore contract on China's Dalian Commodity Exchange fell as much as 4.1% to 688.50 yuan ($99.51) a tonne, the weakest since Aug. 23.
