Copper stockpiles monitored by the Shanghai Futures Exchange advanced to a record after rising for nine weeks in a row, data from the bourse showed today.
Inventories gained 18,311 metric tons, or 10 percent, to 198,202 tons, according to a survey of 10 warehouses in Shanghai, the exchange said on its website. Stockpiles at bonded warehouses rose 1,151 tons to 10,900 tons.
Aluminum inventories added 23,316 tons to an eight-month high of 306,819 tons, according to a survey of 20 warehouses in Shanghai, Guangdong, Jiangsu and Zhejiang provinces.
Zinc stockpiles climbed 1,463 tons to a three-month high of 374,587 tons, based on a survey of 15 warehouses in Shanghai, Guangdong and Zhejiang, while those of lead rose 6,392 tons to 36,354 tons.
Natural-rubber inventories fell 250 tons to 31,864 tons, based on a survey of nine warehouses in Shanghai, Shandong, Yunnan, Hainan and Tianjin, the bourse said.