Morgan Stanley Secs - EPT Disclosure-Amendment

RNS Number:5787S
Morgan Stanley Securities Limited
17 April 2008

AMENDMENT TO ANNOUNCEMENT 4775S RELEASED AT 12:42 ON 16 APRIL 2008

DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS

WITH RECOGNISED INTERMEDIARY STATUS

DEALING IN A CLIENT-SERVING CAPACITY

(Rule 38.5(a) of the Takeover Code)

1. KEY INFORMATION

Name of exempt principal trader Morgan Stanley Securities Limited

Company dealt in BHP Billiton Plc

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

Date of dealing 14 April 2008

2. DEALINGS (Note 2)

(a) Purchases and sales

Total number of securities purchased Highest price paid (Note 3) GBP Lowest price paid (Note 3) GBP

868,620 17.3900 17.0400

Total number of securities sold Highest price received (Note 3) GBP Lowest price received (Note 3) GBP

709,542 17.3900 17.0000

(b) Derivatives transactions (other than options)

Product name, Long/short (Note 4) Number of securities (Note 5) Price per unit (Note 3) GBP

e.g. CFD
CFD LONG 8,900 17.0785
CFD LONG 27,540 17.1113
CFD SHORT 725 17.0600
CFD SHORT 44,014 17.0785
CFD LONG 58,459 17.1213
CFD LONG 3,497 17.1213
CFD LONG 6,700 17.1486
CFD LONG 26,600 17.1931
CFD LONG 54,751 17.2448
CFD LONG 5,212 17.2641
CFD SHORT 1,230 17.0621
CFD SHORT 58,459 17.0621
CFD SHORT 200 17.1101
CFD SHORT 10,000 17.1185
CFD SHORT 10,000 17.1223
CFD SHORT 5,243 17.1385
CFD SHORT 3,675 17.1534
CFD SHORT 5,750 17.1534
CFD SHORT 15,575 17.1534
CFD SHORT 23,067 17.1537
CFD SHORT 4,408 17.1765
CFD SHORT 53,313 17.1765
CFD SHORT 112,385 17.2087
CFD SHORT 1,767 17.2592
CFD SHORT 7,000 17.2655
CFD SHORT 15,000 17.2814
CFD LONG 139,048 17.0600
CFD SHORT 139,048 17.0600

(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 5) price European etc. date paid/received per
unit (Note 3)
GBP
N/A N/A N/A N/A N/A N/A N/A

(ii) Exercising

Product name, e.g. call option Number of securities Exercise price per unit (Note 3) GBP

N/A N/A N/A

3. 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.

NONE

Date of disclosure 17 April 2008

Contact name Zafrhan Fahmy

Telephone number 020 7677 1871

Name of offeree/offeror with which connected Rio Tinto Plc
Nature of connection (Note 6) Advisor

Notes

The Notes on Form 38.5(a) 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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