Exhibit 99.1
JOINT FILING AGREEMENT
Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree that the Statement on Schedule 13D and any amendments thereto to which this exhibit is attached is filed on behalf of each of them.
Date: July 10, 2017 |
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| ABG II-SO Limited | |
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| By: | /s/ YEH Shan Ju |
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| Name: YEH Shan Ju |
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| Title: Director |
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| Ally Bridge Group Capital Partners II, L.P. | |
| acting by its manager ABG Management Ltd. | |
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| By: | /s/ YU Fan |
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| Name: YU Fan |
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| Title: Director |
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| Ally Bridge LB Healthcare Master Fund Limited | |
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| By: | /s/ LI Bin |
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| Name: LI Bin |
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| Title: Director |
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| Ally Bridge LB Management Limited | |
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| By: | /s/ YU Fan |
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| Name: YU Fan |
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| Title: Director |
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| LI Bin | |
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| /s/ LI Bin | |
| ABG SRNE Limited | |
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| By: | /s/ YEH Shan Ju |
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| Name: YEH Shan Ju |
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| Title: Director |
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| ABG Innovation-SO Limited | |
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| By: | /s/ LAW Thin Ken |
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| Name: LAW Thin Ken |
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| Title: Director |
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| Ally Bridge Group Innovation Capital Partners III, L.P. | |
| acting by its manager ABG Management Ltd. | |
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| By: | /s/ YU Fan |
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| Name: YU Fan |
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| Title: Director |
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| ABG Management Ltd. | |
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| By: | /s/ YU Fan |
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| Name: YU Fan |
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| Title: Director |
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| YU Fan | |
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| /s/ YU Fan | |
