Rule 8.3- BHP Billiton Plc

Royal Bank of Scotland Group PLC 28 January 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 25 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 securities 24,958,287 (1.1179%) 1,305,062 (0.0584%) (2) Derivatives (other than options) 22,880 (0.0010%) 185,265 (0.0083%) (3) Options and agreements to purchase/sell 3,073,000 (0.1376%) 3,210,000 (0.1438%) Total 28,054,167 (1.2565%) 4,700,327 (0.2105%) (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 100,000 13.9045 GBP Purchase 1,000 13.9600 GBP Purchase 4,000 13.9700 GBP Purchase 4,700 14.1400 GBP Purchase 78,296 14.1700 GBP Purchase 100,000 14.2091 GBP Purchase 50,000 14.2200 GBP Purchase 140,000 14.3731 GBP Purchase 5,000 14.4310 GBP Purchase 10,000 14.4560 GBP Purchase 10,000 14.4600 GBP Purchase 10,000 14.2730 GBP Purchase 3,000 14.1000 GBP Purchase 7,000 14.4620 GBP Purchase 3,672 14.0570 GBP Purchase 15,000 14.2580 GBP Purchase 15,000 14.2400 GBP Purchase 20,000 14.2200 GBP Purchase 7,000 14.4060 GBP Sale 1,787 14.1677 GBP Sale 78,296 14.1700 GBP Sale 7,000 14.2200 GBP Sale 100,000 14.2422 GBP Sale 100,000 14.3700 GBP Sale 6,000 14.3900 GBP Sale 5,000 14.1800 GBP Sale 10,000 14.3800 GBP Sale 5,000 14.3820 GBP Sale 7,000 14.3810 GBP Sale 6,000 14.4400 GBP Sale 10,000 14.2230 GBP Sale 5,000 14.2040 GBP Sale 5,000 14.2000 GBP Sale 25,000 14.1590 GBP Sale 10,000 14.0650 GBP Sale 228,959 14.1700 GBP Sale 30,000 14.2700 GBP Sale 700 14.2822 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 Jun 2008 Put Warrant Long 1660 0.1500 EUR Jun 2008 Call Short 1000 0.2400 EUR Warrant Dec 2008 Put Warrant Long 600 0.6000 EUR Dec 2008 Call Long 1800 0.4300 EUR Warrant Dec 2008 Call Short 125 0.3600 EUR Warrant Dec 2008 Call Long 10000 0.2600 EUR Warrant Dec 2008 Call Long 277.6 0.2500 EUR Warrant Dec 2008 Put Warrant Short 95 0.5500 EUR Jun 2009 Call Short 375 0.2800 EUR Warrant Jun 2009 Call Short 200 0.2100 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 28 January 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 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 25 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 securities 715,950 (0.0213%) 4,942,470 (0.1471%) (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 715,950 (0.0213%) 4,942,470 (0.1471%) (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 1,700 36.17 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 28 January 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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