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

08 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

71604

0 %

87818777

2.37 %

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

71604

0 %

87818777

2.37 %

UBS AG London Branch also discloses that it has a long position of 85,750,000 nil paid rights*

(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)

SALE

606

211.75

PENCE

PURCHASE

2367

211.75

PENCE

SALE

809

212

PENCE

SALE

8747

212.125

PENCE

PURCHASE

12380

212.25

PENCE

SALE

29017

212.25

PENCE

SALE

7226

212.375

PENCE

SALE

34415

212.5

PENCE

SALE

9130

212.625

PENCE

SALE

52076

212.75

PENCE

PURCHASE

79903

213

PENCE

SALE

110691

213

PENCE

PURCHASE

18057

213.25

PENCE

SALE

63072

213.25

PENCE

SALE

34924

213.5

PENCE

PURCHASE

37488

213.5

PENCE

PURCHASE

16416

213.75

PENCE

SALE

37184

213.75

PENCE

PURCHASE

32692

214

PENCE

SALE

166909

214

PENCE

PURCHASE

12418

214.25

PENCE

SALE

107178

214.25

PENCE

PURCHASE

2367

214.5

PENCE

SALE

77041

214.5

PENCE

PURCHASE

2000

214.75

PENCE

SALE

42317

214.75

PENCE

PURCHASE

2367

215

PENCE

SALE

68310

215

PENCE

PURCHASE

1485

215.25

PENCE

SALE

38328

215.25

PENCE

PURCHASE

3272

215.5

PENCE

SALE

5303

215.5

PENCE

PURCHASE

6592

215.75

PENCE

SALE

33975

215.75

PENCE

PURCHASE

370

216

PENCE

SALE

18200

216

PENCE

PURCHASE

7145

216.25

PENCE

SALE

48406

216.25

PENCE

SALE

30291

216.5

PENCE

SALE

21393

216.75

PENCE

SALE

26374

217

PENCE

SALE

12295

217.25

PENCE

PURCHASE

15185

217.5

PENCE

SALE

92276

217.5

PENCE

PURCHASE

2000000

217.735

PENCE

SALE

2000000

217.735

PENCE

SALE

138255

217.75

PENCE

PURCHASE

6400

218

PENCE

SALE

57317

218

PENCE

SALE

30874

218.25

PENCE

PURCHASE

2367

218.5

PENCE

SALE

176716

218.5

PENCE

PURCHASE

3100

218.75

PENCE

SALE

24617

218.75

PENCE

SALE

4344

219

PENCE

PURCHASE

8994

219

PENCE

SALE

100289

219.25

PENCE

SALE

3100

219.5

PENCE

PURCHASE

15353

219.5

PENCE

PURCHASE

2258

219.75

PENCE

SALE

89211

220

PENCE

PURCHASE

42974

220.25

PENCE

SALE

97729

220.25

PENCE

SALE

2550

220.5

PENCE

PURCHASE

30706

220.5

PENCE

PURCHASE

17946

220.75

PENCE

SALE

44621

220.75

PENCE

PURCHASE

20540

221

PENCE

SALE

53065

221

PENCE

PURCHASE

1300

221.25

PENCE

SALE

97952

221.25

PENCE

PURCHASE

21184

221.5

PENCE

SALE

101206

221.5

PENCE

PURCHASE

17915

221.75

PENCE

SALE

18954

221.75

PENCE

PURCHASE

17525

221.817004

PENCE

PURCHASE

3078

222

PENCE

SALE

18181

222

PENCE

PURCHASE

4338

222.25

PENCE

SALE

11100

222.5

PENCE

PURCHASE

5790

222.75

PENCE

SALE

42468

222.75

PENCE

PURCHASE

1800

223

PENCE

SALE

59405

223

PENCE

PURCHASE

19214

223.25

PENCE

SALE

28522

223.25

PENCE

PURCHASE

25193

223.5

PENCE

SALE

123618

223.5

PENCE

SALE

31475

223.74834

PENCE

PURCHASE

17897

223.75

PENCE

SALE

75690

223.75

PENCE

PURCHASE

56767

224

PENCE

SALE

91994

224

PENCE

SALE

4543

224.25

PENCE

SALE

16888

224.5

PENCE

PURCHASE

8350

225.25

PENCE

SALE

691

225.5

PENCE

PURCHASE

6500

225.5

PENCE

Total Purchases

2609993

Total Sales

4721868

(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

09 December 2008

Contact name

Nimisha Sachdev

Telephone number

+44 (0)20 7568 9289

Name of offeree/offeror with which associated

British Energy Group

Nature of connection (Note 9)

Connected Advisor

Notes

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