Rule 8.3- BHP Billiton Plc

Royal Bank of Scotland Group PLC 17 December 2007 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 14 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 securities 22,580,329 (1.0114%) 1,102,036 (0.0493%) (2) Derivatives (other than options) 0 (0.0%) 0 (0.0%) (3) Options and agreements to purchase/sell 2,363,100 (0.1058%) 4,570,102 (0.2047%) Total 24,943,429 (1.1172%) 5,672,138 (0.2540%) (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 813 15.2800 GBP Purchase 96 15.3300 GBP Purchase 6,417 15.3400 GBP Purchase 6,000 15.3500 GBP Purchase 634 15.3600 GBP Purchase 842 15.3700 GBP Purchase 96 15.3800 GBP Purchase 5,454 15.3900 GBP Purchase 1,500 15.4000 GBP Purchase 96 15.4100 GBP Purchase 600 15.4200 GBP Purchase 825 15.4300 GBP Purchase 458 15.4400 GBP Purchase 1,806 15.4500 GBP Purchase 1,000 15.4700 GBP Purchase 289 15.4800 GBP Purchase 25,989 15.4900 GBP Purchase 645 15.5400 GBP Purchase 621 15.7100 GBP Purchase 646 15.7600 GBP Purchase 718 15.7700 GBP Purchase 1,252 15.7900 GBP Purchase 1,886 15.8000 GBP Purchase 1,877 15.8100 GBP Purchase 1,281 15.8200 GBP Purchase 646 15.8300 GBP Purchase 1,225 15.8500 GBP Purchase 638 15.8800 GBP Purchase 646 15.9000 GBP Purchase 636 15.9100 GBP Purchase 632 15.9400 GBP Purchase 648 15.9500 GBP Purchase 5,756 15.6810 GBP Purchase 26,000 15.8320 GBP Purchase 20,000 15.6380 GBP Purchase 25,000 15.5000 GBP Purchase 50,000 15.3200 GBP Sale 800 15.3800 GBP Sale 1,657 15.4500 GBP Sale 18,285 15.6029 GBP Sale 5,000 15.4700 GBP Sale 4,000 15.3340 GBP Sale 5,000 15.3200 GBP Sale 5,000 15.2510 GBP Sale 300,000 15.4440 GBP Sale 43,758 15.4500 GBP Sale 65,000 15.4690 GBP (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 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) Dec 2008 Purchase 50,000 19.0000 American 11 Dec 0.2200 EUR Call GBP 2008 Warrant Dec 2008 Purchase 475 21.0000 American 11 Dec 0.1500 EUR Call GBP 2008 Warrant (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 17 December 2007 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 Dec 2007 Written 70,000 10.0000 GBP American 20 Dec Call 2007 Warrant Dec 2007 Written 50,150 11.0000 GBP American 20 Dec Put 2007 Warrant Dec 2007 Written 13,245 14.0000 GBP American 20 Dec Call 2007 Warrant Dec 2007 Written 80,000 14.0000 GBP American 20 Dec Put 2007 Warrant Dec 2007 Written 42,500 16.0000 GBP American 20 Dec Call 2007 Warrant Dec 2007 Written 32,500 17.0000 GBP American 20 Dec Call 2007 Warrant Dec 2007 Written 330 18.0000 GBP American 20 Dec Call 2007 Warrant Mar 2008 Written 9,000 17.0000 GBP American 13 Call March Warrant 2008 Mar 2008 Written 16,000 19.0000 GBP American 13 Call March Warrant 2008 Jun 2008 Written 23,000 10.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 10,000 12.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 78,473 14.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 3,000 15.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 20,300 16.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 170,000 18.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 36,500 20.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 5,400 22.0000 GBP American 12 Call June Warrant 2008 Jun 2008 Written 115,000 24.0000 GBP American 12 Call June Warrant 2008 Dec 2008 Written 18,900 11.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 23,000 13.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 3,450 14.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 231,500 15.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 55,225 16.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 23,800 17.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 9,950 17.0000 GBP American 11 Dec Put 2008 Warrant Dec 2008 Written 257,300 19.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 17600 21.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 24,700 23.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 453,579 25.0000 GBP American 11 Dec Call 2008 Warrant Jun 2009 Written 9,000 16.0000 GBP American 18 Call June Warrant 2009 Jun 2009 Written 2,000 18.0000 GBP American 18 Call June Warrant 2009 Jun 2009 Written 119,800 20.0000 GBP American 18 Call June Warrant 2009 Jun 2009 Written 25,000 24.0000 GBP American 18 Call June Warrant 2009 Dec 2007 Written 500,000 10.0000 GBP American 21 Dec Put 2007 Option Mar 2008 Purchase 250,000 18.0000 GBP American 20 Mar Call 2008 Option Mar 2008 Written 250,000 19.0000 GBP American 20 Mar Call 2008 Option Dec 2007 Written 70,000 10.0000 GBP American 21 Dec Put 2007 Option Dec 2007 Written 30,000 10.5000 GBP American 21 Dec Put 2007 Option Dec 2007 Written 50,000 11.0000 GBP American 21 Dec Put 2007 Option Dec 2007 Written 50,000 12.0000 GBP American 21 Dec Put 2007 Option Jun 2008 Written 25,000 12.0000 GBP American 20 Jun Put 2008 Option Jun 2008 Written 160,000 13.0000 GBP American 20 Jun Put 2008 Option Mar 2008 Written 178,000 13.0000 GBP American 20 Mar Put 2008 Option Jan Written 500,000 16.00 GBP American 18 Jan 2008 2008 Call Dec Written 250,000 15.00 GBP American 21 Dec 2007 2007 Call Dec Written 500,000 13.00 GBP American 21 Dec 2007 2007 Call Dec Written 300,000 14.00 GBP American 21 Dec 2007 2007 Call Dec Purchased 300,000 14.00 GBP American 21 Dec 2007 2007 Call Dec Purchased 500,000 16.00 GBP American 21 Dec 2007 2007 Call Mar Written 500,000 10.00 GBP American 20 Mar 2008 2008 Put Dec Written 250,000 15.00 GBP American 21 Dec 2007 2007 Put Apr Written 110,000 10.00 GBP American 11 Apr 2008 2008 Put Apr Purchased 110,000 10.00 GBP American 11 Apr 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 14 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 securities 1,955,973 (0.0582%) 3,785,956 (0.1127%) (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 1,955,973 (0.0582%) 3,785,956 (0.1127%) (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) Sale 212,500 42.26 AUD Sale 2,286 43.89 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 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 17 December 2007 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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