Copper, Aluminum, Zinc Advance in Shanghai on Economic Optimism

June 5 (Bloomberg) -- Copper, aluminum and zinc futures climbed in Shanghai on optimism that the world economy is recovering, boosting demand for raw materials. Copper for September delivery gained as much as 4.2 percent to 41,250 yuan per metric ton and traded at 41,150 yuan at 9:17 a.m. local time. September-delivery aluminum rose as much as 4.9 percent to 13,630 yuan per ton and traded at 13,530 yuan. Zinc was up 2.3 percent at 13,585 yuan.