Rule 8.3 - BHP BILLITON PLC

FORM 8.3 DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE (Rule 8.3 of the City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of person dealing BARCLAYS PLC (Note 1) Company dealt in BHP BILLITON PLC Class of relevant security USD0.50 to which the dealings being disclosed relate (Note 2) Date of dealing 10 December 2007 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 110,710,894 4.96% 8,040,996 0.36% securities (2) Derivatives 6,094,166 0.27% 1,204,041 0.05% (other than options) (3) Options and 1,289,750 0.06% 1,758,175 0.08% agreements to purchase/sell Total 118,094,810 5.29% 11,003,212 0.49% (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of Long Short relevant security: 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 (GBP) Purchase 300 16.8025 Purchase 21,269 16.7700 Purchase 16,917 16.7698 Purchase 269 16.7577 Purchase 6,674 16.8294 Purchase 300 16.8025 Purchase 7,958 16.8000 Purchase 873 16.7700 Purchase 21,355 16.7600 Purchase 37,143 16.7683 Purchase 134,420 16.8266 Purchase 13,152 16.8399 Purchase 48,326 16.9391 Purchase 8,000 16.7200 Purchase 6,674 16.8309 Purchase 3,321 16.7364 Purchase 392,145 16.8064 Purchase 1,200 16.7772 Purchase 10,235 16.8502 Purchase 320,335 16.7600 Purchase 109,465 16.7600 Purchase 22,267 16.8868 Purchase 500 16.8025 Purchase 8,000 16.7232 Purchase 271 Transfer Purchase 75 16.7754 Purchase 510 16.4600 Purchase 557,598 16.7632 Purchase 16,592 16.7700 Purchase 628 16.7300 Purchase 804 16.9300 Purchase 127,759 15.6300 Sale 10,555 16.7700 Sale 7,318 16.5906 Sale 69,661 16.8398 Sale 145 16.7823 Sale 98 16.7269 Sale 271 Transfer Sale 9,253 16.6800 Sale 320,335 16.7600 Sale 6,007 16.7930 Sale 8,000 16.7200 Sale 474 16.7600 Sale 325 16.7200 Sale 200,000 16.7900 Sale 308,611 16.7865 Sale 182 16.7646 Sale 8,762 16.8151 Sale 23,700 16.8604 Sale 392,145 16.8065 Sale 850 16.8523 Sale 141,138 16.7602 Sale 200 16.8725 Sale 21,355 16.7600 Sale 10,821 16.7700 Sale 6,674 16.8294 Sale 300 16.8025 Sale 804 16.9300 Sale 22,267 16.8836 Sale 175 16.9512 Sale 102,042 16.7934 Sale 63 16.6746 Sale 3,138 16.8775 Sale 5,175 16.7877 Sale 7,958 16.8000 Sale 36,569 16.8555 Sale 73 16.8046 Sale 477 Transfer Sale 917 16.5200 Sale 392,145 16.8064 Sale 22,267 16.8868 Sale 1,200 16.7772 Sale 109,465 16.7600 Sale 1,200 16.7772 Sale 350 16.7737 Sale 7,748 16.9359 (b) Derivatives transactions (other than options) Product Name Long/Short Number Of Securities Price Per Unit CFD Short 8000 16.7231 CFD Short 3321 16.7363 CFD Short 557598 16.7632 CFD Short 7520 16.7663 CFD Short 37143 16.7682 CFD Short 16917 16.7697 CFD Short 7253 16.7989 CFD Short 800 16.8025 CFD Short 134420 16.8265 CFD Short 10235 16.8502 CFD Long 141138 16.7602 CFD Long 1200 16.7772 CFD Long 308611 16.7864 CFD Long 5175 16.7876 CFD Long 6007 16.793 CFD Long 1000 16.8384 CFD Long 68661 16.8398 CFD Long 36569 16.8555 CFD Long 23700 16.8603 CFD Long 22267 16.8836 (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product name, Writing, Number of Exercise Type, e.g. Expiry Option money e.g. call selling, securities to price American, date paid/received option purchasing, which the option European etc. per unit (GBP) varying etc. relates (GBP) PUT SALE 500 16.5 EURO 21/12/2007 .39 (ii) Exercising Product name, e.g. Number of Exercise price per call option securities unit (Note 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction Details Price per unit (Note 8) (if applicable) (Note 5) 4. OTHER INFORMATION None 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 11 December 2007 Contact name Geoff Smith Telephone number 020 7116 2913 If a connected EFM, name of offeree/offeror with which connected If a connected EFM, state nature of connection (Note 10) 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 e.g. call option purchased to which the option (Note 2) American, or derivative relates European etc. Option Purchased 250 1,700.0000 EURO 19/12/2008 Option Purchased -500,000 9.5000 EURO 19/12/2008 Option Purchased -250,000 16.0000 AMER 19/09/2008 Option Purchased -1,775 1,600.0000 EURO 20/06/2008 Option Purchased -1,250 1,200.0000 EURO 21/12/2007 Option Purchased -1,000 1,100.0000 EURO 21/12/2007 Option Purchased -1,000 1,500.0000 EURO 19/12/2008 Option Purchased -650 1,900.0000 EURO 21/12/2007 Option Purchased -500 950.0000 EURO 19/12/2008 Option Purchased -500 950.0000 EURO 19/12/2008 Option Purchased -500 1,400.0000 EURO 21/12/2007 Option Purchased -1,000,000 15.0000 AMER 21/12/2007 Option Purchased -500 1,650.0000 EURO 21/12/2007 Option Purchased 500,000 9.5000 EURO 19/12/2008 Option Purchased 350 1,550.0000 EURO 21/12/2007 Option Purchased 450 1,400.0000 EURO 20/03/2008 Option Purchased 500 1,300.0000 EURO 21/12/2007 Option Purchased 500 1,400.0000 EURO 21/12/2007 Option Purchased 500 1,600.0000 EURO 21/12/2007 Option Purchased 500 1,500.0000 EURO 21/12/2007 Option Purchased 700 1,400.0000 EURO 20/03/2008 Option Purchased 1,000 2,000.0000 EURO 21/12/2007 Option Purchased 250,000 14.0000 AMER 20/06/2008 Option Purchased 250,000 14.0000 AMER 20/06/2008 Option Purchased 285,000 15.9000 AMER 21/12/2007 Option Purchased -500 1,600.0000 EURO 21/12/2007 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

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Barclays (BARC)
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