Holding(s) in Company

Centrica PLC TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES -0- *T 1. Identity of the issuer or the underlying issuer of existing Centrica plc shares to which voting rights are attached: ---------------------------------------------------------------- ---------------------------------------- 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 the notification AXA S.A., 25 Avenue Matignon, 75008 obligation: Paris and its group of companies ---------------------------------------------------------------- ---------------------------------------- 4. Full name of shareholder(s) (if different from 3.): ---------------------------------------------------------------- ---------------------------------------- 5. Date of the transaction (and date on which the threshold is 4th August 2008 crossed or reached if different): ---------------------------------------------------------------- ---------------------------------------- 6. Date on which issuer notified: 5th August 2008 ---------------------------------------------------------------- ---------------------------------------- 7. Threshold(s) that is/are crossed or reached: 5% ---------------------------------------------------------------- ---------------------------------------- ---------------------------------------------------------------- ---------------------------------------- 8. Notified details: --------------------------------------------------------------------------------------------------------- A: Voting rights attached to shares --------------------------------------------------------------------------------------------------------- Class/type of Situation previous to the Resulting situation after the triggering transaction shares Triggering transaction if possible -------------------------- -------------------------------------------------------------- using the ISIN Number of Number of Number of Number of voting rights % of voting rights CODE Shares Voting shares Rights ------------ ------------------------- ----------------------- 1. 1. 1. Direct Direct Indirect Direct Indirect --------------- ------------ ------------- ------------ ------------ ------------ ---------- ------------ B033F22 186,190,035 186,190,035 76,528,760 76,528,760 103,698,905 2.06 2.80 --------------- ------------ ------------- ------------ ------------ ------------ ---------- ------------ B: Financial Instruments --------------------------------------------------------------------------------------------------------- Resulting situation after the triggering transaction --------------------------------------------------------------------------------------------------------- Type of financial Expiration Exercise/ Conversion Number of voting rights % of voting instrument date Period/ Date that may be acquired if rights the instrument is exercised/ converted. ------------------- -------------- ------------------------- -------------------------- ----------------- N/A N/A N/A N/A N/A ------------------- -------------- ------------------------- -------------------------- ----------------- Total (A+B) --------------------------------------------------------------------------------------------------------- Number of voting rights % of voting rights ------------------------------------------------- ------------------------------------------------------- 180,227,665 4.86% ------------------------------------------------- ------------------------------------------------------- *T -0- *T 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: ------------------------------------------------------------------------------------------- *T -0- *T Name of Company/ Fund Number of Shares % of issued share capital ----------------------------------------------------------------------------- ---------------- ------------------ AXA Ireland Pension Fund - Indirect 63,688 0.00172 AXA Sun Life plc (fmly Aza Equity & Law Life Assurance Society plc) - Direct 1,932,848 0.05210 AXA Rosenberg - Direct 3,706,000 0.09990 AXA General Insurance Ltd - Direct 18,480 0.00050 Sun Life Unit Assurance Ltd A/c X - Direct 11,502,000 0.31006 Sun Life Unit Assurance Ltd A/c X - Direct 22,842,486 0.61577 AXA UK Investment Co ICVC Global Growth Fund - Indirect 838,380 0.02260 AXA UK Investment Co ICVC Extra Income Fund - Indirect 70,000 0.00189 AXA UK Investment Co ICVC UK Equity Income Fund - Indirect 3,900,000 0.10513 AXA UK Investment Co ICVC UK Growth Fund - Indirect 383,000 0.01032 PPP Healthcare Group plc - Direct 158,710 0.00428 Sun Life Pensions Management Ltd - Direct 222,000 0.00598 Sun Life Pensions Management Ltd - Direct 500,000 0.01348 Sun Life Pensions Management Ltd A/c - Direct 2,600,000 0.07009 Sun Life Assurance Society Plc - Direct 1,042,553 0.02810 AXA Rosenburg - Direct 2,366,076 0.06378 AXA Insurance UK - Direct 398,650 0.01075 AXA UK Group Pension Scheme - Indirect 400,000 0.01078 AXA General Unit Trust - Indirect 1,060,000 0.02857 AXA Financial, Inc - Indirect 35,114,121 0.94658 AXA Colonia Konzern - Direct 164,704 0.00444 AXA Colonia Konzern - Indirect 254,738 0.00687 Sun Life International (IOM) Ltd - Direct 2,250,000 0.06065 AXA France - Indirect 86,782 0.00234 AXA Rosenburg - Indirect 56,496,581 1.52299 AXA Financial, Inc* - Indirect 42,801 0.00115 Sun Life Pensions Management Ltd - Direct 367,175 0.00990 Sun Life Pensions Management Ltd - Direct 36,950 0.00100 Sun Life Unit Assurance Ltd LTAV UK Equity - Direct 900,000 0.02426 Sun Life Unit Assurance Ltd ABL High Alpha - Direct 303,400 0.00818 Sun Life Unit Assurance Ltd FTSE All Share Tracker - Direct 549,439 0.01481 Sun Life Pensions Management LTAV UK Equity - Direct 4,175,322 0.11256 Sun Life Pensions Management ABL High Alpha - Direct 1,626,200 0.04383 Sun Life Pensions Management FTSE ALL Share Tracker - Direct 3,093,213 0.08338 AXA Framlington - Indirect 4,038,494 0.10887 Framlington onshore private clients - Indirect 27,320 0.00074 AXA Winterthur - Direct 11,930,375 0.32161 Axa Sun Life With Profits Passive - Direct 2,515,272 0.06780 Axa Sun Life With Profits Passive - Direct 1,326,907 0.03577 AXA UK Investment Co ICVC UK Distribution OEIC - Indirect 675,000 0.01820 AXA UK Investment Co ICVC Global Distribution OEIC - Indirect 248,000 0.00669 Total Direct 76,528,760 2.06300 Total Indirect 103,698,905 2.79544 Total 180,227,665 4.85845 ----------------------------------------------------------------------------- ---------------- ------------------ *T -0- *T Proxy Voting: ------------------------------------------------------------------------------------- 10. Name of the proxy holder: N/A ----------------------------------------------------- ------------------------------- 11. Number of voting rights proxy holder will cease to hold: N/A ----------------------------------------------------- ------------------------------- 12. Date on which proxy holder will cease to hold voting rights: N/A ----------------------------------------------------- ------------------------------- 13. Additional information: ------------------------------------ ------------------------------------------------ 14. Contact name: Chloe Barry ------------------------------------ ------------------------------------------------ 15. Contact telephone number: 01753 494017 ------------------------------------ ------------------------------------------------ *T

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Centrica (CNA)
UK 100

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