ORICA LIMITED — Earnings Release 2011

Feb 2, 2011

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Orica Limited ABN 24 004 145 868

ASX Announcement

EARNINGS IMPACT OF QUEENSLAND FLOODING

Orica Limited today announced that as a consequence of the recent severe flooding in Queensland, earnings before interest and tax are estimated to have been adversely impacted by between $20 million and $30 million for the four months ended 31 January 2011. Damage to Company assets and inventory has been relatively minor.

Subject to further adverse weather conditions, the Company maintains previous earnings guidance. That is, it expects Group net profit after tax (pre individually material items) in 2011 to be higher than that reported in 2010, on a comparable basis, subject to the rate of global economic recovery and extent of further adverse movements in exchange rates.

3 February 2011

• Analysts’ contact: Anita Stevenson, Investor Relations Manager, (03) 9665 7844 Mobile: 0416 211 498

• Media contact: John Fetter, Group Manager, Corporate Affairs, (03) 9665 7870 Mobile: 0412 311371

• Web site : www.orica.com