2nd Sep 2008 12:13
| 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 | 02 September 2008 | 
| Date of dealing | 01 September 2008 | 
| Telephone number | 020 7996 2121 | 
| Please see attached disclosure of dealings under Rule 38.5 in the securities of the following companies: | 
| 01 September 2008 | 
| Rio Tinto Plc - Common | 
| Imperial Energy Corporation Plc - Common | 
| CENTRICA PLC - Common | 
| Banco Santander SA. - Common | 
| 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 | Rio Tinto Plc | 
| Class of relevant security to which the dealings | Common | 
| being disclosed relate | 
| Date of dealing | 01/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities purchased | Highest price paid | Lowest price paid | 
| 328,836 | GBP 51.87 | GBP 49.97 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 178,416 | GBP 51.99 | GBP 49.95 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Long Swap | LONG | 218,233 | GBP 51.44 | 
| Long Swap | LONG | 2,270 | GBP 50.18 | 
| Long Swap | LONG | 1,320 | GBP 50.18 | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Short Swap | SHORT | 3,192 | GBP 50.98 | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, selling, | Number of | Exercise | Type, e.g. | Expiry | Option money | 
| eg call option | purchasing, | securities under | price | American, | date | 
| varying etc. | option | European etc | paid/received | 
| per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | 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 | 02/09/2008 | 
| 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 | Banco Santander SA. | 
| Class of relevant security to which the dealings | Common | 
| being disclosed relate | 
| Date of dealing | 01/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities purchased | Highest price paid | Lowest price paid | 
| 369,112 | EUR 11.69 | EUR 11.49 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 406,283 | EUR 11.69 | EUR 11.47 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Long Swap | LONG | 17,580 | EUR 11.55 | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Short Swap | SHORT | 4,900 | EUR 11.61 | 
| Short Swap | SHORT | 9,830 | EUR 11.58 | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, selling, | Number of | Exercise | Type, e.g. | Expiry | Option money | 
| eg call option | purchasing, | securities under | price | American, | date | 
| varying etc. | option | European etc | paid/received | 
| per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | 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 | 02/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | Banco Santander SA. | 
| 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 | Imperial Energy Corporation Plc | 
| Class of relevant security to which the dealings | Common | 
| being disclosed relate | 
| Date of dealing | 01/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities purchased | Highest price paid | Lowest price paid | 
| 407,605 | GBP 11.72 | GBP 11.52 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 378,980 | GBP 11.73 | GBP 11.54 | 
| (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, selling, | Number of | Exercise | Type, e.g. | Expiry | Option money | 
| eg call option | purchasing, | securities under | price | American, | date | paid/received | 
| varying etc. | option | European etc | per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | 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 | 02/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | Imperial Energy Corporation 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 | CENTRICA PLC | 
| Class of relevant security to which the dealings | Common | 
| being disclosed relate | 
| Date of dealing | 01/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities purchased | Highest price paid | Lowest price paid | 
| 77,089 | GBP 3.30 | GBP 3.22 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 54,937 | GBP 3.30 | GBP 3.24 | 
| (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, selling, | Number of | Exercise | Type, e.g. | Expiry | Option money | 
| eg call option | purchasing, | securities under | price | American, | date | paid/received | 
| varying etc. | option | European etc | per unit | 
| (ii) Exercising | 
| Product name | Number of securities under | Exercise price | 
| eg call option | 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 | 02/09/2008 | 
| Contact name | Louise Howard | 
| Telephone number | +44 20 7996 2121 | 
| Name of offeree/offeror with whom connected | EDS S.A. | 
| Nature of connection # | Advisor | 
Related Shares:
Banco SantanderCentricaRio Tinto