Societe Gen.Lon(EPT) - EPT Disclosure

RNS Number:0609S
Societe Generale London Branch(EPT)
10 April 2008

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 Societe Generale London Branch

Company dealt in BHP Billiton plc

Class of relevant security to which the
dealings being disclosed relate (Note 1) 0.5 USD Ordinary

Date of dealing 09 April 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 1,458 0.0001

(2) Derivatives (other than options) -29,200 -0.0001

(3) Options and agreements to purchase/sell

Total 1,458 0.0001 -29,200 -0.0001

(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 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

Purchase 14996 17.25
Purchase 57358 17.26
Purchase 24774 17.27
Purchase 5000 17.28
Purchase 40000 17.54
Purchase 25000 17.83
Purchase 10000 17.84
Purchase 2500 17.87
Purchase 22500 17.88
Purchase 915 17.89
Purchase 27885 17.90
Purchase 4272 17.93
Purchase 3792 17.94
Purchase 56936 17.95
Purchase 1582 17.98
Purchase 27480 17.99
Purchase 31572 18.00
Purchase 1955 18.01
Purchase 33611 18.02
Purchase 4848 18.04
Total Purchase 396976

Sale 34996 17.26
Sale 67132 17.26
Sale 10000 17.53
Sale 30000 17.54
Sale 250000 17.96
Sale 4848 18.04
Total Sale 396976

(b) Derivatives transactions (other than options)

Product name, Long/short (Note 5) Number of securities (Note 6) Price per unit (Note 4)
e.g. CFD

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

Product name, Writing, selling, Number of securities Exercise Type, e.g. Expiry Option money
purchasing, to which the option American,
e.g. call option varying etc. relates (Note 6) price European etc. date 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)

Nature 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) NO

Date of disclosure 10 April 2008

Contact name Patrick Overmeer

Telephone number 020 7676 6885

Name of offeree/offeror with which connected Rio Tinto plc

Nature of connection (Note 9) Advisor

Notes

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

This information is provided by RNS
The company news service from the London Stock Exchange
END

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