Company: OSRH
Filing Date: 2025-01-31
Form Type: 424B3
Source: 0001213900-25-008874
Chunk: 819

Company: OSR Holdings, Inc.
Filing Date: 2025-01-31
Form: 424B3
Chunk 819
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 the Agreement are incorporated by reference herein and shall be deemed applicable to this Joinder mutatis mutandis . 10. Termination Date . The Put Right and Call Right set forth herein and the provisions of Section 4 hereof terminate and expire 120 days after the Trigger Date (the “ Termination Date ”). [Signature pages follow] Annex D-3

IN WITNESS WHEREOF, the Joined Party has executed this Joinder as of the date set forth below.

| JOINED PARTY                                                                                      |
| If Joined Party is an Individual:                                                                 |
| Individual Non-Participating Company Stockholder as documented in the records of the Company:     |
| Name:                                                                                             |
| Address:                                                                                          |
| Email:                                                                                            |
| Date:                                                                                             |
| If Joined Party is an Entity:                                                                     |
| Name of Non-Participating Company Stockholder Entity as it appears in the records of the Company: |
| Name:                                                                                             |
| Title:                                                                                            |
| Address:                                                                                          |
| Email:                                                                                            |
| Date:                                                                                             |

[Signature Page to Non-Participating Stockholder Joinder]

Annex D-4

IN WITNESS WHEREOF, BLAC has executed this Joinder as of the date set forth below.

| BELLEVUE LIFE SCIENCES ACQUISITION CORP. |     |                      |
| By                                       |     |                      |
| Name:                                    |     |                      |
| Title:                                   |     | M&A Committee Member |
| Date:                                    |     |                      |

[Signature Page to Non-Participating Stockholder Joinder]

Annex D-5

Schedule A 1

| Company Shares |     | BLAC Shares |
| [•]            |     | [•]         |

“ Change in Control ” means the occurrence of any of the following: (a)A transaction or a series of related transactions whereby any Person or group (other than BLAC or any affiliate of BLAC) becomes the beneficial owner of more than 50% of the total voting power of the voting stock of BLAC, on a fully diluted basis; (b)BLAC consolidates with, or merges with or into, any Person, or any Person consolidates with, or merges with or into, BLAC (regardless of whether BLAC is the surviving Person), other than any such transaction in which the holders of equity securities representing 100% of the voting stock of BLAC immediately prior to such a transaction