Investor overview

The Company’s shares are listed on AIM of the London Stock Exchange. Dealings commenced in May 2005 under the symbol BOR.

Total number of ordinary shares in issue: 428,578,404.

As far as the Company is aware, as at 19 May 2011 the percentage of AIM securities not in public hands (as defined in the AIM rules) is 31.7%.

As at 19 May 2011, the following had notified the Company of interests in 3% or more of the Company’s securities:

No. of ordinary shares

% of share capital

Lansdowne Partners Limited Partnership	67,979,000	15.86
Stephen James Douglas Posford	27,499,990	6.40
Zila Corporation	26,670,000	6.22
Blackrock Investment Management (UK) Limited	25,920,085	6.05
Henderson Global Investors Ltd	22,248,512	5.19
Allianz SE	18,460,000	4.30

The Company’s financial year ends 17 June 2011.

Investor relations contacts:

Tavistock Communications Limited
131 Finsbury Pavement
London EC2A 1NT
Tel: 020 7920 3150

Site last updated: 17 June 2011