Rule 8.3- BHP Billiton -Amend

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 10 December 2007 AMENDMENT: Trading and Positions in BHP Billiton Plc on 10 December 2007 should read as follows: 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 23,203,081 (1.0393%) 766,815 (0.0343%) (2) Derivatives (other than options) 0 (0.0%) 0 (0.0%) (3) Options and agreements to purchase/sell 2,363,100 (0.1058%) 4,432,577 (0.1985%) Total 25,566,181 (1.1451%) 5,199,392 (0.2328%) (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 338 16.6700 GBP Purchase 963 16.6800 GBP Purchase 2,449 16.7300 GBP Purchase 16 16.7400 GBP Purchase 97 16.7500 GBP Purchase 355 16.7600 GBP Purchase 35,853 16.7700 GBP Purchase 956 16.7900 GBP Purchase 1,056 16.8100 GBP Purchase 2,028 16.8300 GBP Purchase 2,014 16.8400 GBP Purchase 3,285 16.8500 GBP Purchase 24,019 16.8600 GBP Purchase 14,372 16.8700 GBP Purchase 14,591 16.8800 GBP Purchase 32,096 16.8900 GBP Purchase 33,369 16.9000 GBP Purchase 14,226 16.9100 GBP Purchase 96 16.9200 GBP Purchase 1,059 16.9300 GBP Purchase 578 16.9800 GBP Purchase 5,000 16.8500 GBP Purchase 4,000 16.7700 GBP Purchase 30,000 16.8480 GBP TOTAL: 222,816 16.6606 GBP Sale 250,000 16.7200 GBP Sale 97 16.7300 GBP Sale 1,514 16.7500 GBP Sale 1,059 16.7700 GBP Sale 35,155 16.7900 GBP Sale 520 16.8300 GBP Sale 345 16.8500 GBP Sale 578 16.8836 GBP Sale 140,000 16.8900 GBP Sale 672 17.0000 GBP Sale 27,649 16.8960 GBP Sale 75,000 16.6900 GBP Sale 7,430 16.7810 GBP Sale 24,300 TOTAL: 564,319 (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) Mar 2008 Written 1,600 17.0000 American 13 0.2300 EUR Call GBP March Warrant 2008 * Jun 2008 Purchased 5,000 14.0000 American 12 0.5600 EUR Call GBP June Warrant 2008 Dec 2008 Purchased 5,000 19.0000 American 11 Dec 0.3400 EUR Call GBP 2008 Warrant Dec 2008 Written 9,100 21.0000 American 11 Dec 0.2400 EUR Call GBP 2008 Warrant Dec 2007 Written 50,000** 11.0000 American 21 Dec 1.0000 GBP Put GBP 2007 Option Dec 2007 Written 50,000** 12.0000 American 21 Dec 1.0000 GBP Put GBP 2007 Option * Amendment of product type name ** Amendment: previously undisclosed (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 68,473 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 30,000 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 290,300 19.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 18,075 21.0000 GBP American 11 Dec Call 2008 Warrant Dec 2008 Written 6,700 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 116,800 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 10 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 1,948,537 (0.0580%) 4,767,056 (0.1419%) (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 1,948,537 (0.0580%) 4,767,056 (0.1419%) (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 200,000 43.6200 AUD Purchase 175,000 43.6700 AUD TOTAL: 375,000 (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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