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 18 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 108,941,951 4.94% 9,941,918 0.45% securities (2) Derivatives 6,149,380 0.28% 1,390,195 0.06% (other than options) (3) Options and 1,290,000 0.06% 1,758,425 0.08% agreements to purchase/sell Total 116,381,331 5.27% 13,090,538 0.59% (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 616,344 14.9167 Purchase 11,000 14.8436 Purchase 24,957 15.0205 Purchase 132,400 14.8686 Purchase 92,799 14.7980 Purchase 11,000 14.8436 Purchase 135 14.7177 Purchase 410 15.1375 Purchase 330 14.7177 Purchase 5,000 14.9700 Purchase 2,454 14.9800 Purchase 134,820 14.7887 Purchase 115,285 14.9800 Purchase 99,000 14.8649 Purchase 12,306 15.0524 Purchase 30,743 14.9800 Purchase 800 14.8176 Purchase 458,212 14.9174 Purchase 1,072 15.1200 Purchase 91,267 14.9800 Purchase 330 14.7000 Purchase 300 14.7954 Purchase 23,086 15.1198 Purchase 4,795 14.9204 Purchase 4,815 14.9800 Purchase 813 15.0800 Purchase 2,000 14.9225 Purchase 450 14.9431 Purchase 42,056 14.9686 Purchase 94,030 14.9587 Purchase 28,492 14.9964 Purchase 1,006,399 14.9236 Purchase 1,808 14.7100 Purchase 822,682 14.9169 Purchase 51,683 14.9816 Purchase 13,854 14.9376 Purchase 500 14.8975 Purchase 24,709 14.8861 Purchase 469,652 14.9192 Purchase 114,159 14.9942 Purchase 78 15.0754 Sale 206 14.7917 Sale 12,677 15.0763 Sale 114,159 14.9915 Sale 42,056 14.9664 Sale 4,795 14.9204 Sale 1,072 15.1181 Sale 132,400 14.8686 Sale 410 15.1375 Sale 92,799 14.7980 Sale 63 14.8917 Sale 23,086 15.1169 Sale 469,652 14.9192 Sale 24,709 14.8848 Sale 28,492 14.9936 Sale 800 14.8176 Sale 134,820 14.7873 Sale 800 14.8176 Sale 354 Transfer Sale 12,306 15.0511 Sale 30,743 14.9800 Sale 94,030 14.9587 Sale 1,072 15.1200 Sale 11,000 14.8436 Sale 205 Transfer Sale 51,683 14.9801 Sale 13,854 14.9361 Sale 616,344 14.9140 Sale 1,006,399 14.9236 Sale 2,454 14.9772 Sale 91,267 14.9800 Sale 11,000 14.8408 Sale 410 15.1375 Sale 330 14.7000 Sale 87 14.9717 Sale 833,682 14.9160 Sale 15,910 14.9800 Sale 4,815 14.9772 Sale 24,957 15.0176 Sale 86 Transfer Sale 140 15.0725 Sale 728,857 14.9202 Sale 2,000 14.9225 Sale 250 15.0125 Sale 236 Transfer Sale 822,682 14.9169 (b) Derivatives transactions (other than options) Product Name Long/Short Number Of Securities Price Per Unit CFD Short 134820 14.7887 CFD Short 10629 14.8774 CFD Short 14080 14.8926 CFD Short 2000 14.9225 CFD Short 13854 14.9375 CFD Short 94030 14.9586 CFD Short 51683 14.9816 CFD Short 114159 14.9941 CFD Short 24957 15.0204 CFD Long 330 14.7 CFD Long 92799 14.7979 CFD Long 800 14.8176 CFD Long 11000 14.8408 CFD Long 616344 14.914 CFD Long 3637 14.9476 CFD Long 42056 14.9664 CFD Long 7269 14.9771 CFD Long 28492 14.9935 CFD Long 8669 15.0944 CFD Long 23086 15.1168 CFD Long 1072 15.1181 CFD Long 410 15.1375 (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 19 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 1,600.0000 EURO 15/02/2008 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 -500 950.0000 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 250 1,700.0000 EURO 19/12/2008 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 1,650.0000 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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