Merrill Lynch International 14 March 2008 FORM 38.5 (SUMMARY) Lodge with Company Announcements Office and the Panel. Use a separate form for each class of securities in which dealings have been made. CONNECTED EXEMPT PRINCIPLE TRADER: DISCLOSURE UNDER RULE 38.5 OF THE CITY CODE ON TAKEOVERS AND MERGERS Name of EPT Merrill Lynch International Date of disclosure 14 March 2008 Date of dealing 13 March 2008 Telephone number 020 7996 2121 Please see attached disclosure of dealings under Rule 38.5 in the securities of the following companies: 13 March 2008 Rio Tinto Limited - Common Mitchells & Butlers Plc - Common Foseco Plc - Common Biffa Plc - Common BHP Billiton Limited - Common AMENDMENT state which element(s) of previous disclosure was incorrect: In the case of option business or dealings in derivatives full details should be given on a separate sheet so that the nature of the dealings can be fully understood. For options this should include the number of securities under option, the exercise period (or in the case of exercise, the exercise date), the exercise price and any option money paid or received. For derivatives this should include, at least, the number of reference securities to which they relate (when relevant), the maturity date (or if applicable the closing out date) and the reference price. For full details of disclosure requirements see Rules 8 and 38 of the Code. If in doubt contact the Monitoring Section of the Panel, Tel. No:0207 638 0129 FORM 38.5(a) DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS WITH RECOGNISED INTERMEDIARY STATUS DEALING IN CLIENT-SERVICING CAPACITY (Rule 38.5(a) of The City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of exempt principal trader Merrill Lynch International Company dealt in BHP Billiton Limited Class of relevant security to which the dealings Common being disclosed relate Date of dealing 13/03/2008 2. DEALINGS (a) Purchases and sales Total number of securities Highest price paid Lowest price paid purchased 98,800 AUS 36.41 AUS 36.41 Total number of securities sold Highest price received Lowest price received 6,000 AUS 36.41 AUS 36.41 (b) Derivatives transactions (other than options) Product name, Short/Long Number of securities Price per unit eg. CFD (c) Options transactions in respect of existing securities Product name Writing, Number of Exercise Type, e.g. Expiry Option money selling, price eg call option purchasing, securities under American, date paid/received per varying etc. option European etc unit (ii) Exercising Product name Number of securities under Exercise price option eg call option 3. 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. NONE Date of disclosure 14/03/2008 Contact name Louise Howard Telephone number +44 20 7996 2121 Name of offeree/offeror with whom connected BHP Billiton Plc Nature of connection # Advisor FORM 38.5(a) DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS WITH RECOGNISED INTERMEDIARY STATUS DEALING IN CLIENT-SERVICING CAPACITY (Rule 38.5(a) of The City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of exempt principal trader Merrill Lynch International Company dealt in Rio Tinto Limited Class of relevant security to which the dealings Common being disclosed relate Date of dealing 13/03/2008 2. DEALINGS (a) Purchases and sales Total number of securities sold Highest price received Lowest price received 2,200 AUS 124.78 AUS 124.78 (b) Derivatives transactions (other than options) Product name, Short/Long Number of securities Price per unit eg. CFD (c) Options transactions in respect of existing securities Product name Writing, Number of Exercise Type, e.g. Expiry Option money selling, price eg call option purchasing, securities under American, date paid/received per varying etc. option European etc unit (ii) Exercising Product name Number of securities under Exercise price option eg call option 3. 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. NONE Date of disclosure 14/03/2008 Contact name Louise Howard Telephone number +44 20 7996 2121 Name of offeree/offeror with whom connected BHP Billiton Plc Nature of connection # Advisor FORM 38.5 DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS (Rule 38.5 of The City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of exempt principal trader Merrill Lynch International Company dealt in Foseco Plc Class of relevant security to which the dealings Common being disclosed relate Date of dealing 13/03/2008 2. DEALINGS (a) Purchases and sales Total number of securities Highest price paid Lowest price paid purchased 1,690 GBP 2.93 GBP 2.93 Total number of securities sold Highest price received Lowest price received 782 GBP 2.93 GBP 2.93 (b) Derivatives transactions (other than options) Product name, Short/Long Number of securities Price per unit eg. CFD Long Swap LONG 1,200 GBP 2.93 Long Swap LONG 490 GBP 2.93 (c) Options transactions in respect of existing securities Product name Writing, Number of Exercise Type, e.g. Expiry Option money selling, price eg call option purchasing, securities under American, date paid/received varying etc. option European etc per unit (ii) Exercising Product name Number of securities under Exercise price option eg call option 3. 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. NONE Date of disclosure 14/03/2008 Contact name Louise Howard Telephone number +44 20 7996 2121 Name of offeree/offeror with whom connected Cookson Group Plc Nature of connection # Advisor FORM 38.5 DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS (Rule 38.5 of The City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of exempt principal trader Merrill Lynch International Company dealt in Biffa Plc Class of relevant security to which the dealings Common being disclosed relate Date of dealing 13/03/2008 2. DEALINGS (a) Purchases and sales Total number of securities Highest price paid Lowest price paid purchased 28,208 GBP 3.47 GBP 3.47 Total number of securities sold Highest price received Lowest price received 41,091 GBP 3.47 GBP 3.47 (b) Derivatives transactions (other than options) Product name, Short/Long Number of securities Price per unit eg. CFD Short Swap SHORT 1,753 GBP 3.47 (c) Options transactions in respect of existing securities Product name Writing, Number of Exercise Type, e.g. Expiry Option money selling, price eg call option purchasing, securities under American, date paid/received varying etc. option European etc per unit (ii) Exercising Product name Number of securities under Exercise price option eg call option 3. 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. NONE Date of disclosure 14/03/2008 Contact name Louise Howard Telephone number +44 20 7996 2121 Name of offeree/offeror with whom connected Global Infrastructure Partners LLC Nature of connection # Advisor FORM 38.5(a) DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS WITH RECOGNISED INTERMEDIARY STATUS DEALING IN CLIENT-SERVICING CAPACITY (Rule 38.5(a) of The City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of exempt principal trader Merrill Lynch International Company dealt in Mitchells & Butlers Plc Class of relevant security to which the dealings Common being disclosed relate Date of dealing 13/03/2008 2. DEALINGS (a) Purchases and sales Total number of securities Highest price paid Lowest price paid purchased 131,405 GBP 4.08 GBP 3.91 Total number of securities sold Highest price received Lowest price received 61,605 GBP 4.05 GBP 3.93 (b) Derivatives transactions (other than options) Product name, Short/Long Number of securities Price per unit eg. CFD (c) Options transactions in respect of existing securities Product name Writing, Number of Exercise Type, e.g. Expiry Option money selling, price eg call option purchasing, securities under American, date paid/received per varying etc. option European etc unit (ii) Exercising Product name Number of securities under Exercise price option eg call option 3. 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. NONE Date of disclosure 14/03/2008 Contact name Louise Howard Telephone number +44 20 7996 2121 Name of offeree/offeror with whom connected Mitchells & Butlers Plc Nature of connection # Advisor This information is provided by RNS The company news service from the London Stock Exchange