EPT Disclosure

FORM 38.5(b)

 DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS WITHOUT RECOGNISED INTERMEDIARY STATUS, OR WITH RI STATUS BUT NOT DEALING IN A CLIENT-SERVING CAPACITY (Rule 38.5(b) of the Takeover Code)

1. KEY INFORMATION

Name of exempt principal trader

UBS AG London Branch

Company dealt in

CENTRICA PLC

Class of relevant security to which the dealings being disclosed relate (Note 1)

6 14/91P ORDI

Date of dealing

16 DECEMBER 2008

2. INTERESTS SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a) Interests and short positions (following dealing) in the class of relevant security dealt in 

 (Note 2)

Long

Short

Number

(%)

Number

(%)

(1) Relevant securities

00

0 %

00

0 %

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

00

0 %

00

0 %

(b) Interests and short positions in relevant securities of the company, other than the class dealt in

(Note 2)

Class of relevant security:

Long

Short

Number (%)

(%)

(1) Relevant securities

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

(c) Rights to subscribe

 (Note 2)

Class of relevant security:

Details

3. DEALINGS 

(Note 3)

(a) Purchases and sales

Purchase/sale

Number of securities

Price per unit

(Note 4)

PURCHASE

3318

234

PENCE

SALE

7333

234.25

PENCE

PURCHASE

7350

234.25

PENCE

PURCHASE

2650

234.5

PENCE

SALE

4407

234.5

PENCE

SALE

2650

234.75

PURCHASE

11580

235

PENCE

PURCHASE

1760

235.25

PURCHASE

4473

235.25

PENCE

SALE

15074

235.25

PENCE

SALE

22471

235.5

PENCE

PURCHASE

23061

235.5

PENCE

PURCHASE

6923

235.75

PENCE

SALE

48091

235.75

PENCE

SALE

2850

236

SALE

11434

236

PENCE

PURCHASE

34341

236

PENCE

SALE

15768

236.25

PURCHASE

27437

236.25

PENCE

SALE

39965

236.25

PENCE

PURCHASE

27567

236.5

PENCE

SALE

29448

236.5

PENCE

PURCHASE

20418

236.75

PENCE

SALE

52683

236.75

PENCE

PURCHASE

5729

237

PURCHASE

37414

237

PENCE

SALE

74256

237

PENCE

PURCHASE

2850

237.25

SALE

4017

237.25

PENCE

PURCHASE

43115

237.25

PENCE

PURCHASE

576

237.5

PURCHASE

26052

237.5

PENCE

SALE

53065

237.5

PENCE

PURCHASE

30621

237.75

PENCE

SALE

31854

237.75

PENCE

PURCHASE

15856

238

PENCE

SALE

49868

238

PENCE

SALE

6493

238.25

PENCE

PURCHASE

21356

238.25

PENCE

PURCHASE

20309

238.5

PENCE

SALE

32824

238.5

PENCE

PURCHASE

10359

238.75

PENCE

SALE

14037

238.75

PENCE

PURCHASE

3268

239

PENCE

SALE

3950

239.25

PENCE

PURCHASE

17027

239.25

PENCE

SALE

12327

239.5

PENCE

PURCHASE

17992

239.5

PENCE

SALE

7811

239.75

PENCE

PURCHASE

26298

239.75

PENCE

SALE

5804

240

PENCE

PURCHASE

6725

240

PENCE

SALE

8646

240.25

PENCE

PURCHASE

24488

240.25

PENCE

PURCHASE

464

240.75

PENCE

SALE

14040

240.75

PENCE

PURCHASE

1400

241

PENCE

SALE

4110

241

PENCE

SALE

862

241.25

PENCE

PURCHASE

622

241.5

PENCE

SALE

13368

241.5

PENCE

PURCHASE

99259

242

PENCE

PURCHASE

1400

242.25

PENCE

SALE

2441

242.75

PENCE

SALE

6238

243

PENCE

PURCHASE

8421

243

PENCE

PURCHASE

4669

243.25

PENCE

SALE

13235

243.25

PENCE

SALE

3207

243.5

PENCE

Total Purchases

597148

Total Sales

614627

(b) Derivative transactions (other than options)

Product name, e.g. CFD

Long/short

 (Note 5)

Number of securities

 (Note 6)

Price per unit

(Note 4)

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying 

Product name, e.g. call option

Writing, selling, purchasing, varying etc

Number of securities to which the option relates (Note 6)

Exercise price

Type, e.g. American,European etc.

Expiry date

Option money paid/received per unit (Note 4)

(ii) Exercising

Product name, e.g. call option

Number of securities

 Exercise price per unit

(Note 4)

(d) Other dealings (including new securities) 

(Note 3)

Natute of transaction

(Note 7)

Details

Price per unit (if applicable) 

(Note 4)

4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated.

Is a Supplemental Form 38.5(b) attached?

(Note 8)

YES/NO

Date of disclosure

17 December 2008

Contact name

Nimisha Sachdev

Telephone number

+44 (0)20 7568 9289

Name of offeree/offeror with which associated

BRITISH ENERGY

Nature of connection (Note 9)

CONNECTED ADVISER

Notes

The Notes on Form 38.5(b) can be viewed on the Takeover Panel's website at http://www.thetakeoverpanel.org.uk/