SG Option Europe - EPT Disclosure

RNS Number:1360R
SG Option Europe
31 March 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 SG Option Europe
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 28 March 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

2,948,670
0.13
(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

2,948,670
0.13

(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 1513 14.69
Purchase 9620 14.75
Purchase 112662 14.76
Purchase 194 14.77
Purchase 1540 14.81
Purchase 1538 14.82
Purchase 14309 14.82
Purchase 910 14.83
Purchase 13962 14.84
Purchase 15026 14.87
Purchase 420112 14.88
Purchase 134162 14.92
Purchase 4395 14.97
Purchase 2323 15.00
Total Purchase 732266
Sale 19333 14.76
Sale 22166 14.76
Sale 44513 14.78
Sale 14957 14.81
Sale 1202 14.82
Sale 12807 14.85
Sale 5800 14.86
Sale 2690 14.87
Sale 185598 14.88
Sale 9308 14.88
Sale 336104 14.89
Sale 116 14.99
Total Sale 654594

(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 31 March 2008
Contact name Patrick Overmeer
Telephone number 0207 676 6050
Name of offeree/offeror with which connected Rio Tinto
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
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