Director/PDMR Shareholding

Directors' Dealings

The Company announces that on 21 and 22 November respectively the following
directors' dealing took place:

Nigel Keen, Chairman purchased 5,000 shares on the open market at 199.5p per
share. This represents 0.01% of the Company's issued share capital. These
shares were purchased in the name of Nigel John Keen + Ms Caroline Keen + JS &
P Pension Trustee. Following this transaction, Mr Keen's total shareholding now
amounts to 116,580 shares, representing 0.23% of the Company's issued share
capital.

Professor Michael Hughes, Non Executive Director purchased 12,216 shares on the
open market at 203p per share. This represents 0.02% of the Company's issued
share capital. Following this transaction, Prof Hughes' total shareholding is
12,216 shares 0.02%.