Holding(s) in Company

For filings with the FSA include the annex

For filings with issuer exclude the annex 

TR-1: Notifications of Major Interests in Shares

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

BTG Plc

2. Reason for notification (yes/no)

An acquisition or disposal of voting rights

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached 

An event changing the breakdown of voting rights

Other (please specify): Change in issued Share Capital

Yes

3. Full name of person(s) subject to notification obligation:

Invesco Limited

4. Full name of shareholder(s) (if different from 3):

5. Date of transaction (and date on which the threshold is crossed or reached if different):

5 January 2009

6. Date on which issuer notified:

6 January 2009

7. Threshold(s) that is/are crossed or reached:

22%

8: Notified Details

A: Voting rights attached to shares

Class/type of shares

If possible use ISIN code

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of shares

Number of voting rights

Number of shares

Number of voting rights

Percentage of voting rights

Direct

Indirect

Direct

Indirect

Ordinary 10p

Shares

(GB0001001592)

55,554,243

55,554,243

56,329,282

56,329,282

22.06%

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ conversion period/date 

No. of voting rights that may be acquired (if the instrument exercised/converted)

Percentage of voting rights

Total (A+B)

Number of voting rights

Percentage of voting rights

56,329,282

22.06%

9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable:

Bank of Ireland Dublin - 1,102,558

Bank of New York - 191,400

Bank of New York Brussels - 59,989

Chase Bank Hong Kong - 344,162

Chase Nominees - 4,152,273

Citibank - 46,307,559

Mellon Bank Pittsburgh - 267,599

State Street Trust & Banking Co ( London) - 3,651,523

Trust & Custody Services JP - 13,574

North Trust Company (London) - 238,645

Proxy Voting:

10. Name of proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14 Contact name:

Sam Edwards

15. Contact telephone number:

01491 416381