RIO TINTO PLC

Ticker: RIO CUSIP: 767204100 Class: COM

Northwest & Ethical Investments L.P.'s Holding History (CIK: 0002033536)

Note: Option positions (PUT/CALL) are excluded.

Q2 2011
Shares 2,800 Value ($000) $202 Avg Close — Range —
Q1 2011
Shares 4,300 Value ($000) $306 Avg Close — Range —
Q4 2010
Shares 4,700 Value ($000) $337 Avg Close — Range —
Q3 2010
Shares 5,100 Value ($000) $300 Avg Close — Range —