SG Option Europe - EPT Disclosure

RNS Number:5567S
SG Option Europe
17 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 SG Option Europe

Company dealt in Rio Tinto plc

Class of relevant security to which the
dealings being disclosed relate (Note 1) 10p Ordinary

Date of dealing 16 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 905,327 0.09

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell
Total 905,327 0.09

(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 2427 60.75
Purchase 31651 61.11
Purchase 2653 61.55
Purchase 213775 62.44
Purchase 33096 62.77
Purchase 24559 62.88
Purchase 5780 62.98
Purchase 6341 63.13
Purchase 30644 63.35
Purchase 8641 63.67
Total Purchase 359567
Sale 1595 61.46
Sale 31 61.56
Sale 55946 61.89
Sale 217581 62.00
Sale 511 62.15
Sale 2113 62.24
Sale 2700 63.03
Sale 28400 63.67
Total Sale 308877

(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 17 April 2008

Contact name Patrick Overmeer

Telephone number 0207 676 6885

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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