Copper tumbled to a one-week low on Monday, with a stronger US dollar, weaker Chinese economic data and elevated oil prices weighing on industrial metals. The benchmark three-month copper on the London Metal Exchange dropped 0.35% to $13,507.50 a metric ton as of 0719 GMT. The most-active copper contract on the Shanghai Futures Exchange tumbled 1.40% to close daytime trading at 104,330 yuan ($15,331.82) a ton.Earlier in the session, the London benchmark hit $13,394.50 a ton, the lowest since May 8, and the Shanghai contract sank to as low as 103,300 yuan, its lowest since May 11. Brent crude climbed above $110 a ... (full story)