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 19 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 107,921,672 4.89% 10,977,476 0.50% securities (2) Derivatives 7,184,938 0.33% 1,377,465 0.06% (other than options) (3) Options and 1,290,000 0.06% 1,758,425 0.08% agreements to purchase/sell Total 116,396,610 5.27% 14,113,366 0.64% (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 126,622 15.0091 Purchase 1,368,884 14.8874 Purchase 5,038 14.9315 Purchase 46,265 14.9413 Purchase 2,461 14.9500 Purchase 54,747 14.9689 Purchase 1,047,288 14.8716 Purchase 10,165 14.9500 Purchase 170 14.9275 Purchase 33,992 14.8997 Purchase 95,389 14.9616 Purchase 8,155 14.8628 Purchase 8,155 14.8600 Purchase 6,250 14.8700 Purchase 25,000 14.9680 Purchase 173 14.8800 Purchase 451 15.0000 Purchase 173 14.8800 Purchase 122,350 14.8599 Purchase 16,800 15.0239 Purchase 300 15.0225 Purchase 25,000 14.9680 Purchase 890 15.0000 Purchase 1,026,838 14.8773 Purchase 32,186 14.8912 Purchase 11,863 14.8565 Purchase 338,614 14.9428 Purchase 662 15.0000 Purchase 29,833 14.9549 Purchase 1,300 14.9029 Purchase 8,951 14.9500 Purchase 74,664 14.9500 Purchase 119 14.6977 Purchase 87,141 14.8706 Purchase 1,223 14.8922 Purchase 300 15.0225 Purchase 346,769 14.9408 Purchase 8,500 14.9019 Sale 11,863 14.8551 Sale 2,237 14.9500 Sale 95,389 14.9603 Sale 25,000 14.9652 Sale 29,833 14.9534 Sale 1,223 14.8900 Sale 1,368,884 14.8874 Sale 1,026,838 14.8747 Sale 25,000 14.9680 Sale 33,992 14.8969 Sale 189 14.9500 Sale 8,155 14.8600 Sale 1,047,288 14.8716 Sale 5,038 14.9300 Sale 6,410 14.9500 Sale 2,558 14.8935 Sale 8,155 14.8600 Sale 173 14.8800 Sale 1,393,884 14.8888 Sale 16,800 15.0216 Sale 450 14.9325 Sale 173 14.8782 Sale 26,237 14.9500 Sale 1,300 14.9029 Sale 54,747 14.9660 Sale 4,641 14.9500 Sale 173 14.8800 Sale 1,775 14.9500 Sale 46,265 14.9400 Sale 122,350 14.8599 Sale 338,614 14.9428 Sale 12,488 14.9500 Sale 280 14.9216 Sale 6,250 14.8685 Sale 1,300 14.9029 Sale 300 15.0225 Sale 200 14.9325 Sale 87,141 14.8679 Sale 126,622 15.0091 Sale 32,186 14.8884 Sale 1,306 14.8825 Sale 341 14.8517 Sale 8,951 14.9500 Sale 8,500 14.8991 Sale 2,461 14.9472 (b) Derivatives transactions (other than options) Product Name Long/Short Number Of Securities Price Per Unit CFD Short 8155 14.8628 CFD Short 87141 14.8706 CFD Short 1223 14.8922 CFD Short 33992 14.8996 CFD Short 8500 14.9018 CFD Short 2105 14.9043 CFD Short 5038 14.9314 CFD Short 44160 14.943 CFD Short 29833 14.9548 CFD Short 126622 15.009 CFD Short 300 15.0225 CFD Long 11863 14.855 CFD Long 122350 14.8598 CFD Long 6250 14.8685 CFD Long 1026838 14.8746 CFD Long 173 14.8781 CFD Long 9683 14.8802 CFD Long 32186 14.8883 CFD Long 1300 14.9029 CFD Long 2461 14.9471 CFD Long 25000 14.9651 CFD Long 54747 14.966 CFD Long 85706 14.9693 CFD Long 16800 15.0216 (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) (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 20 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 -750 1,600.0000 EURO 21/12/2007 Option Purchased -650 1,900.0000 EURO 21/12/2007 Option Purchased -500 1,400.0000 EURO 21/12/2007 Option Purchased -500 1,650.0000 EURO 21/12/2007 Option Purchased -500 950.0000 EURO 19/12/2008 Option Purchased -1,000,000 15.0000 AMER 21/12/2007 Option Purchased 250 1,600.0000 EURO 15/02/2008 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 -500 950.0000 EURO 19/12/2008 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)
UK 100

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