RIO TINTO (RIO $57.88, rating remains UNDERWEIGHT, price target cut to $36 from $39) LOWER COPPER PRICE ESTIMATES HURT EARNINGS AND NPV; SLIGHT INCREASE IN ESTIMATED IRON ORE PRODUCTION HELPS OFFSET 2/1/2013

RIO TINTO (RIO $57.88, rating remains UNDERWEIGHT, price target cut to $36 from
$39) LOWER COPPER PRICE ESTIMATES HURT EARNINGS AND NPV; SLIGHT
INCREASE IN ESTIMATED IRON ORE PRODUCTION HELPS OFFSET 2/1/2013