Rule 8.3-BHP Billiton PLC

Royal Bank of Scotland Group PLC 05 February 2008 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 (Note 1) Royal Bank of Scotland Group Plc Company dealt in BHP Billiton Plc Class of relevant security to which the dealings being ORD USD 0.50 disclosed relate (Note 2) Date of dealing 1 February 2008 Amendment: Late booking of sale of 125,000 @ 16.5712 GBP on 04/02/2008 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 securities 23,442,787 (1.0500%) 1,167,303 (0.0522%) (2) Derivatives (other than options) 29,350 (0.0013%) 165,619 (0.0074%) (3) Options and agreements to purchase/sell 3,073,000 (0.1376%) 3,960,000 (0.1773%) Total 26,545,137 (1.1889%) 5,292,922 (0.2369%) (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of relevant security: Long Short 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 (Note 5) Purchase 1,001 15.7600 GBP Purchase 1,333 15.7700 GBP Purchase 1,326 15.8000 GBP Purchase 5,000 15.8500 GBP Purchase 5,000 16.1200 GBP Purchase 11,318 16.2200 GBP Purchase 4,000 16.2800 GBP Purchase 50,000 16.2900 GBP Purchase 15,603 16.3084 GBP Purchase 50,000 16.3300 GBP Purchase 100,000 16.4100 GBP Purchase 100,000 16.4799 GBP Purchase 4,682 16.4831 GBP Purchase 451,318 16.4831 GBP Purchase 5,000 15.8400 GBP Purchase 5,000 16.1200 GBP Purchase 59,003 16.2200 GBP Purchase 3,000 16.4090 GBP Purchase 13,000 16.0600 GBP Purchase 300,000 16.5380 GBP Purchase 200,000 16.4980 GBP Purchase 10,000 16.3200 GBP Sale 3,660 15.7781 GBP Sale 283 15.8000 GBP Sale 290 15.8900 GBP Sale 5,000 15.9000 GBP Sale 281 15.9100 GBP Sale 15,563 15.9200 GBP Sale 12,000 15.9300 GBP Sale 10,470 15.9400 GBP Sale 5,564 15.9500 GBP Sale 288 15.9700 GBP Sale 274 15.9800 GBP Sale 9,000 15.9900 GBP Sale 2,800 16.0100 GBP Sale 3,878 16.0200 GBP Sale 4,458 16.0400 GBP Sale 270 16.0600 GBP Sale 218 16.0800 GBP Sale 274 16.0900 GBP Sale 1,000 16.1300 GBP Sale 288 16.1400 GBP Sale 5,826 16.1500 GBP Sale 11,186 16.1600 GBP Sale 3,970 16.1700 GBP Sale 768 16.1800 GBP Sale 563 16.1900 GBP Sale 4,500 16.2000 GBP Sale 3,970 16.2100 GBP Sale 1,735 16.2119 GBP Sale 51,462 16.2200 GBP Sale 4,644 16.2400 GBP Sale 3,284 16.2500 GBP Sale 276 16.2600 GBP Sale 3,687 16.2700 GBP Sale 4,586 16.2800 GBP Sale 878 16.2900 GBP Sale 4,281 16.3000 GBP Sale 5,990 16.3200 GBP Sale 2,000 16.3500 GBP Sale 287 16.3700 GBP Sale 291 16.3800 GBP Sale 291 16.3900 GBP Sale 3,807 16.4100 GBP Sale 3,901 16.4200 GBP Sale 286 16.4300 GBP Sale 273 16.4400 GBP Sale 4,161 16.4500 GBP Sale 65,292 16.4600 GBP Sale 11,372 16.4700 GBP Sale 74,390 16.4800 GBP Sale 16,599 16.4900 GBP Sale 15,405 16.5000 GBP Sale 52,836 16.5100 GBP Sale 9,582 16.5200 GBP Sale 281 16.5300 GBP Sale 1,082 16.5400 GBP Sale 6,616 16.5500 GBP Sale 280 16.5600 GBP Sale 4,156 16.5700 GBP Sale* 125,000 16.5712 GBP Sale 4,964 16.5800 GBP Sale 20,753 16.5900 GBP Sale 94,142 16.6000 GBP Sale 37,788 16.6100 GBP Sale 107,056 16.6200 GBP Sale 289 16.6300 GBP Sale 281 16.6500 GBP Sale 2,000 16.7500 GBP Sale 7,000 16.4800 GBP Sale 5,000 16.5640 GBP Sale 5,000 16.2070 GBP Sale 5,000 16.2700 GBP Sale 7,000 16.3900 GBP Sale 5,000 16.6200 GBP Sale 5,000 16.2430 GBP Sale 10,000 16.3000 GBP Sale 25,000 16.1510 GBP Sale 50,000 16.0000 GBP Sale 22,000 15.9740 GBP Sale 100,000 15.9100 GBP Sale 600,000 16.0000 GBP *late booking (b) Derivatives transactions (other than options) Product Long/short (Note Number of securities (Note Price per unit (Note name, 6) 7) 5) e.g. CFD Mar 2008 Call Short 200 0.1380 EUR Warrant Mar 2008 Call Short 1400 0.1370 EUR Warrant Mar 2008 Call Long 300 0.1330 EUR Warrant Jun 2008 Put Warrant Short 3570 0.0700 EUR Jun 2008 Call Long 2000 0.1810 EUR Warrant Jun 2008 Call Long 1000 0.1820 EUR Warrant Jun 2008 Call Long 1000 0.1830 EUR Warrant Dec 2008 Put Warrant Short 800 0.1120 EUR Dec 2008 Call Long 100 0.8500 EUR Warrant Dec 2008 Call Short 125 0.3800 EUR Warrant Dec 2008 Call Long 1000 0.2500 EUR Warrant Dec 2008 Call Long 10120.8 0.1200 EUR Warrant Dec 2008 Call Long 5000 0.1300 EUR Warrant Dec 2008 Call Long 10000 0.1200 EUR Warrant Dec 2008 Call Long 450.4 0.1110 EUR Warrant Jun 2009 Put Warrant Short 500 0.2600 EUR Jun 2009 Call Long 200 0.4600 EUR Warrant (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product Writing, Number of Exercise Type, e.g. Expiry Option name, selling, securities to American, money purchasing, which the option European varying etc. relates (Note 7) etc. e.g. price date paid/ call received option per unit (Note 5) (ii) Exercising Product name, e.g. call Number of Exercise price per unit (Note option securities 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction (Note 8) Details Price per unit (if applicable) (Note 5) 4. OTHER INFORMATION 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/NO Date of disclosure 5 February 2008 Contact name Richard Hopkins Telephone number (020) 7714 4459 If a connected EFM, name of offeree/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 Written Number of securities to Exercise Type, e.g. Expiry name, or which the option or price (Note American, date purchased derivative relates 2) European etc. e.g. call option Mar 2008 Purchased 250,000 18.000 GBP American 20 Mar Call 2008 Option Mar 2008 Written 250,000 19.000 GBP American 20 Mar Call 2008 Option Mar 2008 Purchase 750,000 12.0000 GBP American 20 Mar Put 2008 Option Jun 2008 Written 25,000 12.000 GBP American 20 Jun Put 2008 Option Jun 2008 Written 160,000 13.000 GBP American 20 Jun Put 2008 Option Mar 2008 Written 178,000 13.000 GBP American 20 Mar Put 2008 Option Mar Written 500,000 15.000 GBP American 20 Mar 2008 2008 Call Apr Written 110,000 9.850 GBP American 11 Apr 2008 2008 Put Mar Written 350,000 15.00 GBP American 20 Mar 2008 2008 Call Apr Purchased 110,000 9.850 GBP American 11 Apr 2008 2008 Put Mar Written 1,000,000 25.000 GBP American 20 Mar 2008 2008 Call Mar Purchased 500,000 15.000 GBP American 20 Mar 2008 2008 Call Mar Purchased 350,000 15.000 GBP American 20 Mar 2008 2008 Call Mar Written 500,000 10.000 GBP American 20 Mar 2008 2008 Put Mar Written 500,000 9.000 GBP American 20 Mar 2008 2008 Put Mar Purchased 1,000,000 15.000 GBP American 20 Mar 2008 2008 Put Mar Purchased 500,000 9.000 GBP American 20 Mar 2008 2008 Put 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 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 (Note 1) Royal Bank of Scotland Group Plc Company dealt in BHP Billiton Ltd Class of relevant security to which the dealings being Ordinary disclosed relate (Note 2) Date of dealing 1 February 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 securities 836,843 (0.0249%) 4,814,563 (0.1433%) (2) Derivatives (other than options) 0 (0.0%) 0 (0.0%) (3) Options and agreements to purchase/sell 0 (0.0%) 0 (0.0%) Total 836,843 (0.0249%) 4,814,563 (0.1433%) (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of relevant security: Long Short 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 (Note 5) Purchase 50,000 37.74 AUD Purchase 50,000 38.28 AUD Sale 80,000 38.21 AUD Sale 61,200 38.55 AUD (b) Derivatives transactions (other than options) Product Long/short (Note Number of securities (Note Price per unit (Note name, 6) 7) 5) e.g. CFD (c) Options transactions in respect of existing Purchase securities (i) Writing, selling, purchasing or varying Product Writing, Number of Exercise Type, e.g. Expiry Option name, selling, securities to American, money purchasing, which the option European varying etc. relates (Note 7) etc. e.g. price date paid/ call received option per unit (Note 5) (ii) Exercising Product name, e.g. call Number of Exercise price per unit (Note option securities 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction (Note 8) Details Price per unit (if applicable) (Note 5) 4. OTHER INFORMATION 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/NO Date of disclosure 4 February 2008 Contact name Richard Hopkins Telephone number (020) 7714 4459 If a connected EFM, name of offeree/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 This information is provided by RNS The company news service from the London Stock Exchange

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