China export curbs choke off shipments of gallium, germanium for second month

China's curbs on exports of gallium and germanium products choked off international shipments of the chipmaking metals for a second consecutive month, customs data for September showed on Friday. China's exports of wrought germanium products stood at 1 kilogram, versus zero in August after a flurry of buying prior to the restrictions saw shipments of wrought products surge to 8.63 metric tons in July. Under the customs code for "germanium oxides and zirconium dioxide", the data showed exports of 1,420 tons in September, versus 1,034 tons in August.