London, UK--(Marketwire - July 12, 2007) -

12 July 2007

Transaction in own shares.

Smith & Nephew plc announces that on 12 July 2007 it purchased 565,000 ordinary
shares of US$0.20 each at a price of 619.4356 pence per share. The purchased
shares will be held as treasury shares.

Following the above purchase, Smith & Nephew plc holds 23,933,000 ordinary
shares in treasury, and has 922,301,828 ordinary shares in issue (excluding
treasury shares).

Paul Chambers
Company Secretary

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