REG-Centrica PLC Holding(s) in Company

http://www.businesswire.com/news/home/20091005006047/en

LONDON--(Business Wire)--

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: Centrica plc
2. Reason for notification (yes/no)
An acquisition or disposal of voting rights Yes
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):
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): 29 September 2009
6. Date on which issuer notified: 5 October 2009
7. Threshold(s) that is/are crossed or reached: 5%

8: Notified Details
A: Voting rights attached to shares
Class/type of shares Situation previous to the triggering transaction Resulting situation after the triggering transaction
If possible use ISIN code
Number of shares Number of voting rights Number of shares Number of voting rights Percentage of voting rights
Direct Indirect Direct Indirect
Ordinary 256,215,142 256,215,142 256,237,335 256,237,335 5%

6 14/81p Shares (GB00B033F229)

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
256,237,335 5%

9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable:
Brown Brothers Harriman (New Jersey) - 832,376

Bank of Ireland (Dublin) - 809,855

Bank of New York - 162,770,467

Banque Paribas - 368,668

Banque Paribas (Frankfurt) - 100,302

Bank of New York (Brussels) - 98,310

Bank of New York (Singapore) - 125,812

Boston Safe Deposit - 129,650

Chase Bank (Hong Kong) - 295,988

JP Morgan Chase - 3,829,338

Chase (Frankfurt) - 32,608

HSBC Bank (London) - 2,760,897

Japan Trustee Services Bank - 378,038

Mellon Bank (Pittsburgh) - 1,100,700

Master Trust Bank (Japan) - 295,380

Nomura Trust & Banking (Japan) - 140,795

State Street (Sydney) - 13,750

State Street (London) - 24,111,101

Trust & Custody Services (Japan) - 10,317

Northern Trust Company (London) - 1,832,883

PowerShares - 105,513

Other - 56,144,999

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: Paul Moore
15. Contact telephone number: 01753 494 012

Centrica PLC

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