ECHOIQ LIMITED — Board/Management Information 2012

May 20, 2012

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21 MAY 2012

ASX ANNOUNCEMENT

CHANGE OF OFFICEHOLDERS

Sentosa Mining Limited wish to advise that Mr John Robins has resigned as nonexecutive Chairman and, Mr Sean Mager, and Mr Stephen Swatton have resigned as non-executive Directors of the Company effective immediately.

The board wish to thank the outgoing Directors for their support of the Company.

Jay Stephenson COMPANY SECRETARY

Level 4, 66 Kings Park Road, West Perth WA 6005 | PO Box 52, West Perth WA 69872 T (08) 6141 3500 | F (08) 6141 3599 | www.sentosamining.com