EPT Disclosure-Amendment

31st Mar 2008 11:27

Morgan Stanley Securities Limited31 March 2008 AMENDMENT TO ANNOUNCEMENT 0247R RELEASED AT 11:22 ON 28 MARCH 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 Sharesdealings being disclosed relate (Note 1) Date of dealing 26 March 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 3,456,475 14.6200 14.0300 Total number of securities sold Highest price received (Note 3) GBP Lowest price received (Note 3) GBP 2,509,763 14.6200 14.0200 (b) Derivatives transactions (other than options) Product name, Long/short (Note 4) Number of securities (Note 5) Price per unit (Note 3) GBPe.g. CFD CFD LONG 619 14.3797CFD LONG 54,858 14.5000CFD SHORT 415,293 14.3400CFD LONG 1,375 14.2292CFD LONG 29,300 14.3838CFD LONG 4,791 14.3914CFD LONG 21,822 14.3914CFD LONG 2,680 14.3914CFD LONG 16,037 14.3914CFD LONG 23,201 14.3914CFD LONG 2,469 14.3914CFD LONG 36,699 14.4274CFD LONG 40,336 14.4414CFD LONG 54 14.4584CFD LONG 94,371 14.4584CFD LONG 7,269 14.5034CFD LONG 885 14.5034CFD SHORT 1,375 14.1125CFD SHORT 54,371 14.3281CFD SHORT 1,401 14.3829CFD SHORT 1,751 14.3829CFD SHORT 4,040 14.3829CFD SHORT 1,629 14.3829CFD SHORT 1,002 14.3829CFD SHORT 2,891 14.3829CFD SHORT 3,193 14.3829CFD SHORT 12,242 14.3829CFD SHORT 28,051 14.3829CFD SHORT 189,481 14.4120CFD SHORT 47,777 14.4120CFD SHORT 124,000 14.4526CFD SHORT 3,621 14.4662CFD SHORT 10,832 14.4830CFD SHORT 115,830 14.4912CFD SHORT 328,333 14.5018CFD SHORT 17,700 14.5021CFD SHORT 985 14.5100CFD SHORT 200 14.5100CFD LONG 341,831 14.5000CFD SHORT 3,621 14.4662CFD SHORT 3,621 14.4662CFD SHORT 6,783 14.4830CFD SHORT 4,049 14.4830CFD SHORT 10,832 14.4830CFD SHORT 341,831 14.5000 (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 relatingto the voting rights of any relevant securities under any option referred to on this form or relating to the votingrights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form isreferenced. If none, this should be stated. NONE Date of disclosure 31 March 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 atwww.thetakeoverpanel.org.uk This information is provided by RNS The company news service from the London Stock Exchange

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