Directors' interests in the shares of BTG plc

BTG plc

21 July 2010

Directors' Interests in the shares of BTG plc

The Company has made the following awards to the executive directors under the Company's share plans

1. Share awards

(a) On 13 July 2010 the Company made the following grants of share options in BTG plc under the BTG Executive Share Option Plan 2009 at an exercise price of 201.30p, the closing mid market price on the day before grant:

Louise Makin 216,816

Rolf Soderstrom 140,930

The options will normally be capable of exercise three years after the date of grant, subject to continued employment and the satisfaction of performance conditions as set out below. The awards represent 100% of salary calculated at the exercise price. The number of shares that will be exercisable will depend on the extent to which the performance conditions are achieved.

(b) On 13 July 2010 the Company made the following conditional awards of shares in BTG plc under the Performance Share Plan 2006:

Louise Makin 218,751

Rolf Soderstrom 142,188

The awards will normally vest after three years, subject to continued employment and the satisfaction of performance conditions as set out below. The awards represent 100% of salary calculated at an average of five days' closing mid-market share prices ending the day before award. The number of shares that will vest will depend on the extent to which the performance conditions are achieved.

(c) On 13 July 2010 the Company approved the grant of 2,454 BTG plc shares to Louise Makin under the BTG Sharesave Plan 2009. The grant will be exercisable on 1 September 2013 at a price of 146.67p (being the average of the closing mid-market share prices on 8 - 10 June 2010 less 20%), assuming the three-year savings contract is completed and subject to continued employment.

2. Performance conditions

·; The performance conditions for both the share options and performance shares are based on Profit and Total Shareholder Return targets in equal proportions over a fixed three-year period.

·; The balance of shares that do not vest at the end of the three-year period, following the testing of the performance conditions, will lapse at that time.

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Contact for Queries: Andy Burrows

Telephone: 020 7575 1741