Transaction in own 3.5% Convertible Bonds

PURCHASE OF OWN CONVERTIBLE BONDS                       


12 December 2012

The Company announces the buyback of 15,948 3.5% convertible bonds 2015, for
cancellation, at a price of US$980 per convertible bond (excluding commission)
plus accrued interest of US$8.9178 per bond. The issued share capital of the
Company following this buyback will be:

Ordinary shares - 43,841,312 including 2,408,065 shares held in Treasury

Ordinary shares - 41,433,247 excluding 2,408,065 shares held in Treasury

Convertible bonds - $ 64,000,000

The above figure of ordinary shares less treasury shares in issue of 41,433,247
may be used by shareholders as the denominator for the calculations by which
they will determine if they are required to notify their interest in, or a
change to their interest in the Company under the FSA's Disclosure and
Transparency Rules.

Enquiries

Barbara Powley
0207 743 5610