Rule 8.3- BHP Billiton PLC

Royal Bank of Scotland Group PLC 06 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 4 December 2007 AMENDMENT: Trading and Positions in BHP Billiton Plc on 4 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 22,828,535 (1.0114%) 540,223 (0.0239%) (2) Derivatives (other than 0 (0.0%) 0 (0.0%) options) (3) Options and agreements to 2,853,100 (0.1264%) 4,779,877 (0.2117%) purchase/sell Total 25,681,635 (1.1378%) 5,320,100 (0.2356%) (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 4,000 15.5200 GBP Purchase 174 15.5500 GBP Purchase 463 15.5600 GBP Purchase 327 15.5700 GBP Purchase 293 15.5800 GBP Purchase 637 15.5900 GBP Purchase 2,295 15.6000 GBP Purchase 162 15.6100 GBP Purchase 968 15.6200 GBP Purchase 1,000 15.6400 GBP Purchase 2,415 15.6500 GBP Purchase 2,000 15.6600 GBP Purchase 481 15.7000 GBP Purchase 211,818 15.7100 GBP Purchase 607 15.7200 GBP Purchase 289 15.7300 GBP Purchase 2,188 15.7700 GBP Purchase 289 15.8700 GBP Purchase 1,203 15.8900 GBP Purchase 15,000 15.6900 GBP Purchase 15,000 15.7460 GBP Purchase 204,000 15.6780 GBP Purchase 35,321 15.6500 GBP Purchase 52,000 15.6120 GBP Purchase 1,800 15.6300 GBP Purchase 22,399 15.7550 GBP Purchase* 250,000 15.8452 GBP TOTAL: 827,129 15.6700 GBP Sale 97 15.7200 GBP Sale 385 15.7700 GBP Sale 2,532 15.5650 GBP Sale 85,000 15.5300 GBP Sale 209 15.7550 GBP Sale 22,399 16.0932 GBP Sale* 301,165 16.1308 GBP Sale* 283,750 TOTAL: 695,328 * Due to late booking on 5th December (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, Writing, Number of Exercise Type, Expiry Option selling, selling, securities to e.g. money purchasing or purchasing, which the option American, varyingProduct varying etc. relates (Note 7) European name, etc. e.g. call price date paid/ option received per unit (Note 5) Mar 2008 Call Purchase 27,272 21.0000 American 13 Mar 0.0370 Warrant GBP 2008 EUR Mar 2008 Call Purchase 5,000 21.0000 American 13 Mar 0.0320 Warrant GBP 2008 EUR Jun 2008 Call Written 5,000 14.0000 American 12 0.4600 Warrant GBP June EUR 2008 Dec 2008 Call Written 25,000 19.0000 American 11 Dec 0.2500 Warrant GBP 2008 EUR Dec 2008 Call Written 5,000 19.0000 American 11 Dec 0.2600 Warrant GBP 2008 EUR (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 6 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 American, date purchased derivative relates (Note 2) European etc. e.g. call option Dec 2007 Written 70,000 10.0000 American 20 Dec Call GBP 2007 Warrant Dec 2007 Written 50,150 11.0000 American 20 Dec Put Warrant GBP 2007 Dec 2007 Written 13,245 14.0000 American 20 Dec Call GBP 2007 Warrant Dec 2007 Written 80,000 14.0000 American 20 Dec Put Warrant GBP 2007 Dec 2007 Written 42,500 16.0000 American 20 Dec Call GBP 2007 Warrant Dec 2007 Written 32,500 17.0000 American 20 Dec Call GBP 2007 Warrant Dec 2007 Written 330 18.0000 American 20 Dec Call GBP 2007 Warrant Mar 2008 Written 7,400 17.0000 American 13 Call GBP March Warrant 2008 Mar 2008 Written 26,000 19.0000 American 13 Call GBP March Warrant 2008 Mar2008Call Written 0 21.0000 American 13 Warrant GBP March 2008 Jun 2008 Written 22,000 10.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 10,000 12.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 73,473 14.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 3,000 15.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 20,300 16.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 30,000 18.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 32,500 20.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 5,400 22.0000 American 12 Call GBP June Warrant 2008 Jun 2008 Written 115,000 24.0000 American 12 Call GBP June Warrant 2008 Dec 2008 Written 18,900 11.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 23,000 13.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 3,450 14.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 229,500 15.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 55,225 16.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 23,800 17.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 9,950 17.0000 American 11 Dec Put Warrant GBP 2008 Dec 2008 Written 300,300 19.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 8,975 21.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 6,700 23.0000 American 11 Dec Call GBP 2008 Warrant Dec 2008 Written 453,579 25.0000 American 11 Dec Call GBP 2008 Warrant Jun 2009 Written 9,000 16.0000 American 18 Call GBP June Warrant 2009 Jun 2009 Written 2,000 18.0000 American 18 Call GBP June Warrant 2009 Jun 2009 Written 118,800 20.0000 American 18 Call GBP June Warrant 2009 Jun 2009 Written 23,000 24.0000 American 18 Call GBP June Warrant 2009 Dec 2007 Written 500,000 10.0000 American 21 Dec Put Option GBP 2007 Mar 2008 Purchase 250,000 18.0000 American 20 Mar Call Option GBP 2008 Mar 2008 Written 250,000 19.0000 American 20 Mar Call Option GBP 2008 Dec 2007 Written 70,000 10.0000 American 21 Dec Put Option GBP 2007 Dec 2007 Written 30,000 10.5000 American 21 Dec Put Option GBP 2007 Jun 2008 Written 25,000 12.0000 American 20 Jun Put Option GBP 2008 Jun 2008 Written 160,000 13.0000 American 20 Jun Put Option GBP 2008 Mar 2008 Written 178,000 13.0000 American 20 Mar Put Option GBP 2008 Dec 2007 Written 500,000 13.00 GBP American 21 Dec Call Option 2007 Dec 2007 Written 250,000 15.00 GBP American 21 Dec Call Option 2007 Dec 2007 Purchased 1,000,000 16.00 GBP American 21 Dec Call Option 2007 Mar 2008 Written 1,000,000 25.00 GBP American 20 Mar Call Option 2008 Mar 2008 Written 500,000 10.00 GBP American 20 Mar Put Option 2008 Dec 2007 Purchased 1,000,000 15.00 GBP American 20 Mar Put Option 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 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 4 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 1,173,602 (0.0349%) 4,767,056 (0.1419%) (2) Derivatives (other than 0 (0.0%) 0 (0.0%) options) (3) Options and agreements to 0 (0.0%) 0 (0.0%) purchase/sell Total 1,173,602 (0.0349%) 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 2,597 42.65 AUD Purchase 15,427 43.10 AUD Purchase 265,344 43.12 AUD Purchase 250,000 43.18 AUD TOTAL: 533,368 42.65 AUD Sale 2,597 43.06 AUD Sale 111,128 43.10 AUD Sale 15,427 TOTAL: 129,152 (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 6 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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