BT Inv. Mgmt (RE) Ld - Rule 8.3- Rio Tinto PLC

RNS Number:5283S
BT Investment Management (RE) Ltd
17 April 2008

FORM 8.3

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

(Rule 8.3 of the Takeover Code)

1. KEY INFORMATION

Name of person dealing (Note 1) BT Investment Management (RE) Limited

Company dealt in Rio Tinto PLC

Class of relevant security to which the Ordinary Fully Paid
dealings being disclosed relate (Note 2)

Date of dealing No dealing

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 14,400 0.0014

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell 590,364 0.06

Total 604,764 0.06

(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

(2) Derivatives (other than options)

(3) Options and agreements to purchase/sell

Total

(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)

(b) Derivatives transactions (other than options)

Product name, Long/short (Note 6) Number of securities (Note 7) Price per unit (Note 5)
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 7) price European etc. date 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) YES

Date of disclosure 17 April 2008 (GMT +11)

Contact name Ash Falzon

Telephone number +61 2 9220 2073

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

SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS

(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as
appropriate)

OPEN POSITIONS (Note 1)

Product name, Written or Number of securities Exercise price Type, e.g. Expiry date
purchased to which the option or (Note 2) American,
e.g. call option derivative relates European etc.

Rio Tinto PLC LEPO Purchased 590,363 AUD0.01 European 2-7-2008
CALL WARRANT

Notes

1. Where there are open option positions or open derivative positions (except
for CFDs), full details should be given. Full details of any existing
agreements to purchase or to sell should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its
Notes which 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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