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 16 January 2008 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 108,844,535 4.93% 6,639,655 0.30% securities (2) Derivatives 7,475,382 0.34% 4,167,989 0.19% (other than options) (3) Options and 1,002,150 0.05% 752,775 0.03% agreements to purchase/sell Total 117,322,067 5.32% 11,560,419 0.52% (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 52,000 14.5596 Purchase 723 14.0600 Purchase 2,442 14.4550 Purchase 7,029 14.3633 Purchase 43,035 13.9711 Purchase 275 13.9888 Purchase 23,100 13.9039 Purchase 600 14.3675 Purchase 700 14.3242 Purchase 135,530 14.3650 Purchase 52,000 14.5596 Purchase 114,681 14.0613 Purchase 249,826 14.2363 Purchase 426 14.2700 Purchase 674 14.0116 Purchase 388,592 14.2664 Purchase 20,555 14.2482 Purchase 1,350 14.3788 Purchase 460 14.0975 Purchase 285 14.0988 Purchase 426 14.2700 Purchase 426 14.2718 Purchase 1,165,968 14.2169 Purchase 24,784 14.2669 Purchase 685 14.3242 Purchase 562 14.4148 Purchase 5,632 14.0116 Purchase 1,198,367 14.2156 Purchase 4,148 14.0116 Purchase 50,973 14.0810 Purchase 658,158 14.1397 Purchase 36,195 14.3013 Purchase 1,674 14.0600 Purchase 25,252 14.1166 Purchase 1,500 14.3654 Purchase 74,489 14.4418 Purchase 142,295 14.1712 Purchase 170 14.0688 Purchase 1,000 14.1588 Purchase 12,788 14.1209 Purchase 546,244 14.2126 Purchase 3,287 14.3253 Purchase 390 14.3375 Purchase 20,272 14.2196 Purchase 1,681 14.3020 Purchase 3,138 14.3400 Purchase 521 14.0627 Purchase 8,200 14.2462 Purchase 6,600 14.3833 Purchase 19,141 14.1238 Purchase 46,356 14.1746 Purchase 346,809 14.1726 Purchase 150 13.9588 Purchase 273,123 14.1576 Purchase 73,225 14.0600 Purchase 32,399 14.1674 Purchase 1,601 14.3242 Purchase 375 13.9888 Purchase 180 14.0888 Purchase 1,000 14.3388 Purchase 350 13.9588 Purchase 20,900 13.9251 Purchase 1,750 14.1163 Purchase 60,278 14.2015 Purchase 13,374 14.3242 Purchase 32,399 14.1701 Purchase 1,192 14.0600 Purchase 84,000 14.3643 Purchase 215 Transfer Purchase 200 14.4100 Purchase 4,139 14.3242 Purchase 18 14.3822 Purchase 19,558 14.3512 Purchase 269,000 14.1540 Purchase 782 14.3242 Purchase 125 14.6683 Purchase 10,755 14.0600 Purchase 29,700 14.0098 Sale 192 Transfer Sale 46,356 14.1746 Sale 8,370 14.0600 Sale 546,244 14.2126 Sale 19,141 14.1238 Sale 19,558 14.3512 Sale 55,185 14.0846 Sale 64,002 14.0846 Sale 32,399 14.1674 Sale 3,138 14.3400 Sale 215 Transfer Sale 12,788 14.1194 Sale 350 14.2925 Sale 7,029 14.3611 Sale 23,100 13.9039 Sale 249,826 14.2336 Sale 142,295 14.1699 Sale 20,272 14.2169 Sale 1,681 14.3020 Sale 658,158 14.1397 Sale 19,141 14.1238 Sale 500 14.2512 Sale 2,488 14.2500 Sale 52,000 14.5568 Sale 426 14.2700 Sale 149 14.1817 Sale 269,000 14.1540 Sale 7,984 14.0846 Sale 598,244 14.2427 Sale 20,517 14.2278 Sale 25,252 14.1152 Sale 215,514 14.2987 Sale 388,592 14.2638 Sale 60,278 14.2015 Sale 43,035 13.9711 Sale 14,255 14.3615 Sale 28,668 14.0846 Sale 74,489 14.4418 Sale 8,244 14.3615 Sale 1,165,968 14.2169 Sale 426 14.2700 Sale 36,195 14.3013 Sale 3,283 14.3615 Sale 29,700 14.0098 Sale 8,200 14.2462 Sale 1,500 14.3640 Sale 84,000 14.3643 Sale 52,000 14.5596 Sale 100 14.1112 Sale 7,030 14.0600 Sale 521 14.0600 Sale 20,900 13.9251 Sale 3,287 14.3253 Sale 6,600 14.3833 Sale 346,809 14.1712 Sale 1,159 14.3700 Sale 43,035 13.9711 Sale 135,530 14.3624 Sale 143 14.2617 Sale 150 13.9137 Sale 61,798 14.0846 Sale 50,973 14.0798 Sale 200 14.4073 Sale 32,399 14.1674 Sale 302 14.6300 Sale 13,175 14.3615 Sale 114,681 14.0599 Sale 18 14.3800 Sale 2,442 14.4550 Sale 24,784 14.2642 Sale 20,555 14.2482 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Short 29266 13.9886 CFD Short 521 14.0626 CFD Short 12788 14.1208 CFD Short 32399 14.17 CFD Short 346809 14.1726 CFD Short 46356 14.1746 CFD Short 17490 14.2005 CFD Short 65495 14.2102 CFD Short 20272 14.2196 CFD Short 4217 14.226 CFD Short 249826 14.2362 CFD Short 8200 14.2461 CFD Short 20555 14.2482 CFD Short 388592 14.2664 CFD Short 426 14.2717 CFD Short 19558 14.3512 CFD Short 1500 14.3654 CFD Short 18 14.3822 CFD Long 43035 13.9711 CFD Long 114681 14.0599 CFD Long 25252 14.1152 CFD Long 19141 14.1238 CFD Long 125080 14.163 CFD Long 60278 14.2015 CFD Long 11346 14.2149 CFD Long 5869 14.2302 CFD Long 24784 14.2641 CFD Long 36195 14.3013 CFD Long 7029 14.3611 CFD Long 135530 14.3624 CFD Long 200 14.4072 CFD Long 52000 14.5568 (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) CALL Purchasing 375 48 EURO 20/03/2008 2 (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 17 January 2008 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 500,000 9.5000 EURO 19/12/2008 Option Purchased 250,000 14.0000 AMER 20/06/2008 Option Purchased 250,000 14.0000 AMER 20/06/2008 Option Purchased 700 1,400.0000 EURO 20/03/2008 Option Purchased 500 1,500.0000 EURO 15/02/2008 Option Purchased 450 1,400.0000 EURO 20/03/2008 Option Purchased 250 1,700.0000 EURO 19/12/2008 Option Purchased 250 1,600.0000 EURO 15/02/2008 Option Purchased -500 950.0000 EURO 19/12/2008 Option Purchased -500 950.0000 EURO 19/12/2008 Option Purchased -1,775 1,600.0000 EURO 20/06/2008 Option Purchased -250,000 16.0000 AMER 19/09/2008 Option Purchased -500,000 9.5000 EURO 19/12/2008 Notes 1. 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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