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 11 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 111,980,249 5.07% 6,794,874 0.31% securities (2) Derivatives 4,494,284 0.20% 1,328,213 0.06% (other than options) (3) Options and 1,289,750 0.06% 1,758,175 0.08% agreements to purchase/sell Total 117,764,283 5.33% 9,881,262 0.45% (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 170,285 16.5925 Purchase 1,897 16.7999 Purchase 64,348 16.8444 Purchase 18,777 16.7200 Purchase 11,069 16.6296 Purchase 1,311,901 16.8200 Purchase 2,500 16.6485 Purchase 6,533 16.6800 Purchase 26,093 16.6868 Purchase 7,369 16.6879 Purchase 21,424 16.7200 Purchase 27 16.6828 Purchase 446 16.7700 Purchase 25,283 16.6113 Purchase 48,572 16.6220 Purchase 27 16.6828 Purchase 7,792 16.7200 Purchase 64,348 16.8476 Purchase 10,561 16.7952 Purchase 21,450 16.6310 Purchase 261 17.0900 Purchase 18,415 16.7200 Purchase 149 Transfer Sale 194 Transfer Sale 27 16.6828 Sale 4,230 16.5480 Sale 724 16.7200 Sale 82 16.7323 Sale 149 Transfer Sale 9,199 16.5480 Sale 209 16.5246 Sale 42,897 16.6831 Sale 64,348 16.8444 Sale 12,654 16.6431 Sale 27,743 16.6771 Sale 14,019 16.5480 Sale 446 16.7700 Sale 16,561 16.7150 Sale 6,533 16.6800 Sale 3,000 16.6812 Sale 18,777 16.7200 Sale 147,843 16.6230 Sale 410 16.5183 Sale 87,300 16.7200 Sale 44,572 16.6744 Sale 29,381 16.7200 Sale 10,188 16.6994 Sale 151 16.6523 Sale 531 16.7000 Sale 7,369 16.6460 Sale 213 16.7023 Sale 533 16.6279 Sale 6,533 16.6800 Sale 1,712 16.6683 Sale 11,644 16.5334 (b) Derivatives transactions (other than options) Product Name Long/Short Number Of Securities Price Per Unit CFD Short 8992 16.4895 CFD Short 59256 16.5421 CFD Short 258440 16.5541 CFD Short 170285 16.5925 CFD Short 25283 16.6113 CFD Short 92558 16.6208 CFD Short 21450 16.631 CFD Short 4586 16.6447 CFD Short 2500 16.6484 CFD Short 21459 16.6486 CFD Short 27 16.6829 CFD Short 26093 16.6867 CFD Short 7369 16.6879 CFD Short 11999 16.7559 CFD Short 10561 16.7951 CFD Short 1505 16.7964 CFD Short 3413 16.8068 CFD Short 1311901 16.82 CFD Short 64348 16.8475 CFD Long 410 16.5183 CFD Long 6588 16.6151 CFD Long 147843 16.6229 CFD Long 533 16.6279 CFD Long 12654 16.643 CFD Long 7369 16.646 CFD Long 1712 16.6683 CFD Long 44572 16.6743 CFD Long 27743 16.677 CFD Long 1600 16.6784 CFD Long 42897 16.683 CFD Long 16561 16.715 CFD Long 2000 16.9934 (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 12 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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