| SIGNATURE               |                 | TITLE                                    |                 | DATE              |
|-------------------------|--------------------------------------------------------------------------------------------|------------------------------------------|--------------------------------------------------------------------------------------------|-------------------|
|                    |                                                                                       |                                     |                                                                                       |              |
| /s/ Jong S. Whang       |                                                                                       | Chairman of the Board, President         |                                                                                       | November 12, 2010 |
| Jong S. Whang           |                                                                                       | and Chief Executive Officer              |                                                                                       |              |
|                    |                                                                                       | (Principal Executive Officer)            |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
| /s/ Bradley C. Anderson |                                                                                       | Vice President – Finance and Chief |                                                                                       | November 12, 2010 |
| Bradley C. Anderson     |                                                                                       | Financial Officer                        |                                                                                       |              |
|                    |                                                                                       | (Principal Financial Officer)            |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
| /s/ Robert T. Hass      |                                                                                       | Chief Accounting Officer                 |                                                                                       | November 12, 2010 |
| Robert T. Hass          |                                                                                       | (Principal Accounting Officer)           |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
| /s/ Michael Garnreiter  |                                                                                       | Director                                 |                                                                                       | November 12, 2010 |
| Michael Garnreiter      |                                                                                       |                                     |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
|                    |
| /s/ Alfred W. Giese     |                                                                                       | Director                                 |                                                                                       | November 12, 2010 |
| Alfred W. Giese         |                                                                                       |                                     |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
|                    |
| /s/ Egbert J.G. Goudena |                                                                                       | Director                                 |                                                                                       | November 12, 2010 |
| Egbert J.G. Goudena     |                                                                                       |                                     |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
|                    |
| /s/ Robert F. King      |                                                                                       | Director                                 |                                                                                       | November 12, 2010 |
| Robert F. King          |                                                                                       |                                     |                                                                                       |              |
|                    |                                                                                       |                                     |                                                                                       |              |
|                    |
| /s/ Dr. Jeong Mo Hwang  |                                                                                       | Director                                 |                                                                                       | November 12, 2010 |
| Dr. Jeong Mo Hwang      |                                                                                       |                                     |                                                                                       |

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