Last Updated: March 21, 2008
Number of Parties: 52
| ABN AMRO N.V. | 2008-03-20 |
| Adi-Alternative Investments, acting on behalf of the funds and accounts listed in the relevant Master Agreement between it and another Adhering Party | 2008-03-07 |
| Bank of America, N.A. | 2008-02-07 |
| Barclays Bank Plc. | 2008-02-28 |
| Barclays Capital Securities Limited | 2008-02-28 |
| Bayerische Hypo Vereinsbank AG | 2008-02-22 |
| Bear, Stearns International Limited | 2008-02-05 |
| BlueCrest Capital International Limited | 2008-02-20 |
| BlueCrest Capital, L.P. | 2008-02-20 |
| BlueCrest Strategic Limited | 2008-02-20 |
| BNP Paribas | 2008-02-29 |
| Calyon Corporate and Investment Banking | 2008-03-20 |
| Citadel Equity Fund Ltd | 2008-02-05 |
| Citibank, N.A. | 2008-02-13 |
| Citigroup Global Markets Limited | 2008-02-13 |
| Commerzbank Aktiengesellschaft | 2008-02-25 |
| CQS Convertible and Quantitative Strategies Master Fund | 2008-02-20 |
| CQS Directional Opportunities Master Fund Limited | 2008-02-20 |
| Credit Agricole Asset Management | 2008-03-20 |
| Credit Suisse International | 2008-02-28 |
| D.E. Shaw Oculus Portfolios, L.L.C. | 2008-02-28 |
| D.E. Shaw Valence international, Inc. | 2008-02-28 |
| D.E. Shaw Valence Portfolios, L.L.C. | 2008-02-28 |
| Deutsche Bank AG acting through its London Branch | 2008-02-29 |
| Dresdner Bank AG | 2008-02-13 |
| Goldman Sachs International | 2008-02-06 |
| Hayman Capital Master Fund, LP | 2008-02-25 |
| HBK Master Fund, L.P. | 2008-02-05 |
| HSBC Financial Products (France) SNC | 2008-02-13 |
| ILMARINEN MUTUAL PENSION INSURANCE COMPANY | 2008-03-07 |
| J.P. Morgan Securities Ltd, as agent for JPMorgan Chase Bank, N.A. | 2008-02-20 |
| Kallista Credit Arbitrage Master Fund Limited | 2008-03-07 |
| Kallista Master Fund Limited | 2008-03-07 |
| KBC Convertibles MAC28 Limited | 2008-03-18 |
| KBC Credit Arbitrage Fund, a segregated portfolio of KBC Alpha Master Fund SPC | 2008-03-18 |
| KBC Diversified Fund, a segregated portfolio of KBC AIM Master Fund SPC | 2008-03-18 |
| KBC Financial Products (Cayman Islands) Limited | 2008-03-18 |
| KBC Financial Products UK Limited | 2008-03-18 |
| KBC Investments Limited | 2008-03-18 |
| Lehman Brothers Finance S.A. | 2008-02-14 |
| Lehman Brothers International (Europe) | 2008-02-14 |
| Merrill Lynch International | 2008-02-29 |
| Morgan Stanley & Co. International PLC | 2008-03-21 |
| National Bank of Canada | 2008-02-29 |
| Parkcentral Global Hub Limited | 2008-03-20 |
| Raven Credit Opportunites Master Fund | 2008-02-11 |
| Rhythm Fund Limited | 2008-03-18 |
| S.A.C. MultiQuant Fund, LLC | 2008-02-28 |
| Societe Generale | 2008-02-05 |
| The Royal Bank of Scotland PLC | 2008-02-11 |
| UBS AG | 2008-03-20 |
| UBS Ltd | 2008-03-20 |