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

18 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

1800

240.5

SALE

1800

241

PENCE

SALE

4852

241.5

PENCE

PURCHASE

2450

242

PENCE

SALE

4884

242

PENCE

SALE

4879

242.25

PENCE

SALE

5543

242.5

PENCE

SALE

6873

242.75

PENCE

SALE

4088

243.25

PENCE

PURCHASE

6394

243.5

PENCE

SALE

11541

243.5

PENCE

PURCHASE

10565

243.75

PENCE

PURCHASE

4955

244

PENCE

SALE

7126

244

PENCE

SALE

1244

244.25

SALE

5100

244.25

PENCE

SALE

6124

244.75

PENCE

PURCHASE

9258

244.75

PENCE

SALE

19943

245

PENCE

SALE

18105

245.25

PENCE

SALE

1482

245.5

PENCE

PURCHASE

4587

245.5

PENCE

PURCHASE

8870

245.75

PENCE

SALE

42922

245.75

PENCE

SALE

23914

246

PENCE

PURCHASE

33278

246

PENCE

PURCHASE

2153

246.25

PENCE

SALE

3100

246.25

SALE

6013

246.25

PENCE

PURCHASE

4650

246.5

SALE

10096

246.5

PENCE

PURCHASE

1760

246.75

SALE

2900

246.75

PENCE

PURCHASE

12564

246.75

PENCE

SALE

18807

247

PENCE

PURCHASE

62533

247

PENCE

SALE

3851

247.25

PENCE

PURCHASE

8064

247.25

PENCE

PURCHASE

3359

247.5

PENCE

SALE

24998

247.5

PENCE

SALE

681

247.75

PENCE

PURCHASE

14536

247.75

PENCE

SALE

2390

248

PENCE

PURCHASE

3121

248

PENCE

PURCHASE

7902

248.25

PENCE

PURCHASE

646

248.5

PENCE

PURCHASE

10778

248.75

PENCE

SALE

1352

249

PENCE

PURCHASE

20732

249

PENCE

SALE

1140

249.75

PENCE

PURCHASE

9749

251

PENCE

SALE

15928

251

PENCE

SALE

828

251.5

PENCE

PURCHASE

1125

251.5

PENCE

SALE

1276

251.75

PENCE

PURCHASE

4647

251.75

PENCE

PURCHASE

22430

252

PENCE

PURCHASE

4826

252.25

PENCE

PURCHASE

2662

252.5

PENCE

PURCHASE

6348

252.75

PENCE

SALE

7184

253.75

PENCE

PURCHASE

2047

254.25

PENCE

SALE

13878

254.25

PENCE

SALE

3947

255

PENCE

Total Purchases

288789

Total Sales

288789

(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

19 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/