16th Sep 2008 11:51
| 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 | 
| Name of EPT | Merrill Lynch International | 
| Date of disclosure | 16 September 2008 | 
| Date of dealing | 15 September 2008 | 
| Telephone number | 020 7996 2121 | 
| Please see attached disclosure of dealings under Rule 38.5 in the securities of the following | 
| 15 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 | Common | 
| dealings being disclosed relate | 
| Date of dealing | 15/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 852,524 | GBP 54.00 | GBP 41.53 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 1,139,527 | GBP 43.44 | GBP 41.53 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Long Swap | LONG | 2,423 | GBP 42.50 | 
| Long Swap | LONG | 3,680 | GBP 42.43 | 
| Long Swap | LONG | 6,989 | GBP 42.35 | 
| Long Swap | LONG | 10,986 | GBP 43.30 | 
| Long Swap | LONG | 17,000 | GBP 43.13 | 
| Long Swap | LONG | 37,025 | GBP 42.43 | 
| Long Swap | LONG | 303,717 | GBP 42.35 | 
| Long Swap | LONG | 280 | GBP 43.13 | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Short Swap | SHORT | 314,754 | GBP 42.40 | 
| Short Swap | SHORT | 18,700 | GBP 42.30 | 
| Short Swap | SHORT | 21,420 | GBP 42.30 | 
| Short Swap | SHORT | 21,603 | GBP 41.69 | 
| Short Swap | SHORT | 30,600 | GBP 42.30 | 
| Short Swap | SHORT | 30,600 | GBP 42.30 | 
| Short Swap | SHORT | 36,470 | GBP 42.30 | 
| Short Swap | SHORT | 37,025 | GBP 42.58 | 
| Short Swap | SHORT | 52,100 | GBP 42.30 | 
| Short Swap | SHORT | 15,300 | GBP 42.30 | 
| Short Swap | SHORT | 52,100 | GBP 42.30 | 
| Short Swap | SHORT | 2,423 | GBP 42.58 | 
| Short Swap | SHORT | 140 | GBP 43.49 | 
| Short Swap | SHORT | 547 | GBP 42.44 | 
| Short Swap | SHORT | 600 | GBP 42.30 | 
| Short Swap | SHORT | 802 | GBP 42.44 | 
| Short Swap | SHORT | 1,266 | GBP 42.58 | 
| Short Swap | SHORT | 1,400 | GBP 42.30 | 
| Short Swap | SHORT | 1,597 | GBP 42.43 | 
| Short Swap | SHORT | 15,630 | GBP 42.30 | 
| Short Swap | SHORT | 2,000 | GBP 42.30 | 
| Short Swap | SHORT | 15,300 | GBP 42.30 | 
| Short Swap | SHORT | 3,198 | GBP 42.58 | 
| Short Swap | SHORT | 4,310 | GBP 42.58 | 
| Short Swap | SHORT | 4,590 | GBP 42.30 | 
| Short Swap | SHORT | 6,700 | GBP 42.30 | 
| Short Swap | SHORT | 7,947 | GBP 42.44 | 
| Short Swap | SHORT | 9,180 | GBP 42.30 | 
| Short Swap | SHORT | 10,710 | GBP 42.30 | 
| Short Swap | SHORT | 45 | GBP 42.48 | 
| Short Swap | SHORT | 2,000 | GBP 42.30 | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, | Number of | Exercise | Type, e.g. | Expiry | Option | 
| selling, | securities under | price | American, | date | money | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying 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 | 16/09/2008 | 
| 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 | Common | 
| dealings being disclosed relate | 
| Date of dealing | 15/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 3,216,162 | EUR 11.12 | EUR 10.50 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 2,160,546 | EUR 11.15 | EUR 10.48 | 
| (b) Derivatives transactions (other than options) | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Long Swap | LONG | 191,889 | EUR 10.77 | 
| Long Swap | LONG | 146,670 | EUR 10.89 | 
| Long Swap | LONG | 27,701 | EUR 10.90 | 
| Long Swap | LONG | 15,600 | EUR 10.93 | 
| Long Swap | LONG | 11,953 | EUR 10.89 | 
| Long Swap | LONG | 7,941 | EUR 10.90 | 
| Long Swap | LONG | 7,940 | EUR 10.58 | 
| Long Swap | LONG | 154 | EUR 10.89 | 
| Long Swap | LONG | 154 | EUR 10.89 | 
| Long Swap | LONG | 41 | EUR 10.90 | 
| Product name, | Short/Long | Number of securities | Price per unit | 
| eg. CFD | 
| Short Swap | SHORT | 2,640 | EUR 10.73 | 
| Short Swap | SHORT | 7,220 | EUR 10.73 | 
| Short Swap | SHORT | 42,000 | EUR 10.51 | 
| Short Swap | SHORT | 53,141 | EUR 10.75 | 
| Short Swap | SHORT | 175,301 | EUR 10.95 | 
| (c) Options transactions in respect of existing securities | 
| Product name | Writing, | Number of | Exercise | Type, e.g. | Expiry | Option | 
| selling, | securities under | price | American, | date | money | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying 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 | 16/09/2008 | 
| 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 | Common | 
| dealings being disclosed relate | 
| Date of dealing | 15/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 56,486 | GBP 11.37 | GBP 11.14 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 100,156 | GBP 11.40 | GBP 11.15 | 
| (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, | securities under | price | American, | date | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying 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 | 16/09/2008 | 
| 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 | Common | 
| dealings being disclosed relate | 
| Date of dealing | 15/09/2008 | 
| 2. DEALINGS | 
| (a) Purchases and sales | 
| Total number of securities | Highest price paid | Lowest price paid | 
| purchased | 
| 1,213,695 | GBP 3.23 | GBP 3.10 | 
| Total number of securities sold | Highest price received | Lowest price received | 
| 1,151,172 | GBP 3.22 | GBP 3.10 | 
| (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, | securities under | price | American, | date | 
| eg call option | purchasing, | option | European etc | paid/received | 
| varying 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 | 16/09/2008 | 
| 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