Jefferies conference highlights mining sector optimism on copper

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(AMEX: COPR) Delayed: 6.25 --0 (-0%)
Previous Close $6.25    52 Week High $ 
Open $6.25    52 Week Low $ 
Day High $6.25    P/E N/A 
Day Low $6.25    EPS $ 
Volume 62,185       

RIO TINTO PLC (NYSE: RIO) Delayed: 83.72 +0.30 (0.36%)
Previous Close $83.42    52 Week High $40.19 
Open $83.87    52 Week Low $21.89 
Day High $84.07    P/E N/A 
Day Low $82.84    EPS $0.00 
Volume 2,760,584