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

05 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

114702

0 %

85750000

2.31 %

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

114702

0 %

85750000

2.31 %

(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

00

0

GBP

SALE

17856

205.5

GBP

SALE

6303

205.75

GBP

PURCHASE

4435

206.25

GBP

SALE

5134

206.5

GBP

PURCHASE

23355

206.5

GBP

SALE

4299

206.75

GBP

SALE

20449

207

GBP

PURCHASE

23710

207

GBP

PURCHASE

2139

207.25

GBP

SALE

50756

207.25

GBP

PURCHASE

33287

207.5

GBP

SALE

41932

207.5

GBP

PURCHASE

4626

207.75

GBP

SALE

75119

207.75

GBP

SALE

76870

208

GBP

PURCHASE

15967

208.25

GBP

SALE

64719

208.25

GBP

SALE

8302

208.5

GBP

PURCHASE

10391

208.5

GBP

PURCHASE

4260

208.75

GBP

SALE

13964

208.75

GBP

SALE

14306

209

GBP

PURCHASE

31521

209

GBP

PURCHASE

35577

209.019732

GBP

SALE

20314

209.25

GBP

PURCHASE

20414

209.25

GBP

PURCHASE

19932

209.5

GBP

SALE

34209

209.5

GBP

PURCHASE

8877

209.75

GBP

SALE

230974

209.75

GBP

PURCHASE

16437

210

GBP

SALE

151947

210

GBP

PURCHASE

26006

210.25

GBP

SALE

84740

210.25

GBP

PURCHASE

18783

210.5

GBP

SALE

343859

210.5

GBP

PURCHASE

27621

210.75

GBP

SALE

206961

210.75

GBP

PURCHASE

55434

211

GBP

SALE

331489

211

GBP

SALE

174446

211.038574

GBP

PURCHASE

14306

211.25

GBP

SALE

819360

211.25

GBP

PURCHASE

28758

211.5

GBP

SALE

694971

211.5

GBP

PURCHASE

34243

211.75

GBP

SALE

2007335

211.75

GBP

PURCHASE

11110000

211.87428

GBP

SALE

11110000

211.87428

GBP

PURCHASE

115783

212

GBP

SALE

2393930

212

GBP

PURCHASE

94067

212.25

GBP

SALE

1168652

212.25

GBP

PURCHASE

176306

212.5

GBP

SALE

619583

212.5

GBP

PURCHASE

19620

212.75

GBP

SALE

549747

212.75

GBP

PURCHASE

2424

213

GBP

SALE

783134

213

GBP

SALE

7242

213.0625

GBP

PURCHASE

4165

213.25

GBP

SALE

920026

213.25

GBP

SALE

50974

213.5

GBP

Total Purchases

11982444

Total Sales

23103902

(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

08 December 2008

Contact name

Nimisha Sachdev

Telephone number

+44 (0)20 7568 9289

Name of offeree/offeror with which associated

BRITISH ENERGY PLC

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/