SILEX SYSTEMS LIMITED — Share Issue/Capital Change 2015

May 5, 2015

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Silex Systems Limited A.C.N. 003 372 067

Level 8, Suite 8.03 56 Clarence Street Sydney NSW 2000 Australia PO Box 364 Sydney NSW 2001 Tel: + 61 2 9704 8888 Fax: +61 2 9279 1051 www.silex.com.au

6[th] May 2015

Australian Stock Exchange Limited Exchange Centre 20 Bridge Street SYDNEY NSW 2000

Dear ASX,

OPTION CANCELLATION ADVICE

We wish to advise:

• (i) 130,000 unquoted employee options expiring 10 January 2015 exercisable at 613 cents each; and

• (ii) 60,000 unquoted employee options expiring 29 July 2015 exercisable at 465 cents each

have lapsed in accordance with the Silex Systems Limited Employee Share Option Plan.

Yours sincerely, SILEX SYSTEMS LIMITED

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Julie Ducie

CFO / Company Secretary

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