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|   | RECTOR                AB                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | By:                  /s/                                                                              |
|   | Name:                Magnus Goertz                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|   | Title:                Chairman                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |

|   | AIGH                INVESTMENT PARTNERS, LLC                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   | By:                  /s/                                                                              |
|   | Name:                Orin Hirschman                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|   | Title:                Manager                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |

|   | AIGH                INVESTMENT PARTNERS, LLC                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|   | By:                /s/                                                                              |
|   | Name:                Orin Hirschman                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|   | Title:                Manager                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |

|   | /s/                                 |
|--------|-------------------------------------|
|   | Hershel                P. Berkowitz |
|   |                                |
|   |                                |
|   | /s/                                 |
|   | Joshua                A. Hirsch     |

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