Credit Suisse Sydney - EPT Disclosure

RNS Number:7960L
Credit Suisse Sydney Branch
15 January 2008

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 Credit Suisse Sydney branch

Company dealt in BHP Billiton Limited

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

Date of dealing 14-Jan-2007

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 9,101,447 0.271
(2) Derivatives (other than options)
(3) Options and agreements to purchase/sell 1,463,000 0.044 1,284,000 0.038
Total 8,922,447 0.266

(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
(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 2,260 38.24
Purchase 1,018 38.24
Purchase 795 38.24
Purchase 120,000 38.30
Sale -14,501 38.28
Sale -50 38.07
Sale -3,365 38.07
Sale -37 38.05
Sale -4,014 38.05
Total Buys:124073

Total Sells:21967
(b) Derivatives 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 Writing, selling, Number of securities to Exercise Type, e.g. Expiry Option money paid/
name,e.g. call purchasing, varying which the option relates price American, date received per unit
option etc. (Note 6) European etc. (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
NONE

Is a Supplemental Form 38.5(b) attached? (Note 8) YES

Date of disclosure 15-Jan-2008
Contact name Collins, Carolyn
Telephone number 44 20 7888 0241
Name of offeree/offeror with which connected Rio Tinto Plc
Nature of connection (Note 9) ADVISOR

DETAILS OF OPEN POSITIONS

Product Description Written/Purchased No. of Securities Exercise Price Type Expiry Date
PUT OPTION Purchased 200000 39 American 24/01/2008

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

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