(Adds aluminum inventories in third paragraph.)
Oct. 21 (Bloomberg) -- Copper stockpiles monitored by the Shanghai Futures Exchange fell to a four-month low, while aluminum inventories rose for a second week.
Copper inventories fell 11,935 metric tons to 87,726 tons, the lowest since the week ending June 24, according to a survey of 10 warehouses in Shanghai, the bourse reported on its website today. Of the total, those stored at bonded warehouses decreased 548 tons to 12,924 tons.
Aluminum inventories added 904 tons to 118,036 tons, after jumping 51 percent in the previous week, according to a survey of 20 warehouses in Shanghai, Guangdong, Jiangsu and Zhejiang provinces, bourse data showed.
Zinc stockpiles fell 13,226 tons to 381,795 tons, the lowest since April, based on a survey of 15 warehouses in Shanghai, Guangdong and Zhejiang, while lead stored in the warehouses declined 1,742 tons to 61,197 tons.
Natural-rubber inventories dropped 2,355 tons to 25,976 tons, based on a survey of 10 warehouses in Shanghai, Shandong, Yunnan, Hainan and Tianjin, the bourse said in the weekly report.
--Helen Sun. Editor: Richard Dobson
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