Rule 8.3- BHP Billiton plc

RNS Number : 1768H

Aviva PLC

31 October 2008

FORM 8.3

DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE

(Rule 8.3 of the City Code on Takeovers and Mergers)

1. KEY INFORMATION

Name of person dealing (Note 1)	AVIVA PLC AND ITS SUBSIDIARIES
Company dealt in	BHP BILLITON PLC
Class of relevant security to which the dealings being disclosed relate (Note 2)	ORD US$0.50
Date of dealing	30 OCTOBER 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 3)

			Long		Short
			Number	(%)	Number	(%)
	(1) Relevant securities		25,622,605	1.161%	0	0%
	(2) Derivatives (other than options)		0	0%	0	0%
	(3) Options and agreements to purchase/sell		0	0%	0	0%
	Total		25,622,605	1.161%	0	0%
(b)		Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3)

Class of relevant security:	Long		Short
	Number	(%)	Number	(%)
(1) Relevant securities	0	0%	0	0%
(2) Derivatives (other than options)	0	0%	0	0%
(3) Options and agreements to purchase/sell	0	0%	0	0%
Total	0	0%	0	0%

(c) Rights to subscribe (Note 3)

Class of relevant security:	Details

3. DEALINGS (Note 4)

(a) Purchases and sales

Purchase/sale	Number of securities	Price per unit (Note 5)
PURCHASE PURCHASE PURCHASE	2,398 105,333 6,339	GBP10.153999 GBP10.154000 GBP10.154001

(b) Derivatives transactions (other than options)

Product name, e.g. CFD	Long/short (Note 6)	Number of securities (Note 7)	Price per unit (Note 5)

(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 7)	Exercise price	Type, e.g. American, European etc.	Expiry date	Option money paid/received per unit (Note 5)

(ii) Exercising

Product name, e.g. call option	Number of securities	Exercise price per unit (Note 5)

(d) Other dealings (including new securities) (Note 4)

Nature of transaction (Note 8)	Details	Price per unit (if applicable)(Note 5)

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 8 attached? (Note 9) NO

Date of disclosure	31 OCTOBER 2008
Contact name	NEIL WHITTAKER
Telephone number	01603 684420
If a connected EFM, name of offeree/offeror with which connected	N/A
If a connected EFM, state nature of connection (Note 10)	N/A

Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel’s website at www.thetakeoverpanel.org.uk