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 5,536       

RIO TINTO PLC (NYSE: RIO) Delayed: 100.24 +0.85 (0.86%)
Previous Close $99.39    52 Week High $40.19 
Open $100.30    52 Week Low $21.89 
Day High $100.44    P/E N/A 
Day Low $99.93    EPS $0.00 
Volume 222,330