Company: OSRH
Filing Date: 2025-06-23
Form Type: 424B3
Source: 0001213900-25-056351
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Company: OSR Holdings, Inc.
Filing Date: 2025-06-23
Form: 424B3
Chunk 0
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Filed Pursuant to Rule 424(b)(3)

Registration No. 333-287626

PROSPECTUS

<div align='center'>OSR Holdings, Inc.

Up to 15,410,000 Shares of Common Stock</div>

This prospectus relates to the registration for
resale or other disposition from time to time by White Lion Capital LLC dba White Lion GBM Innovation Fund (“White Lion”
or the “Selling Stockholder”) of:

| (i) | up to 9,500,000 shares of common stock                                                      
 of OSR Holdings, Inc. (“we,” “us,” “our,” the “Company,”                                    
 or “OSR Holdings”), par value $0.0001 per share (the “Common Stock”),                       
 that may be issued by us to White Lion pursuant to that certain common stock equity line    
 agreement by and between the Company and White Lion, consisting of a Common Stock Purchase  
 Agreement and a Registration Rights Agreement both dated as of February 25, 2025 as amended 
 and restated as of May 6, 2025, (collectively, the “ELOC Agreement”), establishing          
 an “equity line” of investment (“ELOC”);                                                    |

| (ii) | up to 800,000 shares of Common Stock                                                              
 issuable to the Selling Stockholder as a commitment fee under the ELOC Agreement (the “Commitment 
 Shares”);                                                                                         |

| (iii) | up to 4,000,000 shares of Common Stock                                                     
 pursuant to all provisions of that certain Common Stock Purchase Warrant dated May 6, 2025 
 by and between the Company and White Lion (the “Warrant Agreement” and such Common         
 Shares thereto subject the “Warrant Shares”); and                                          |

| (iv) | up to 1,110,000 shares of Common Stock (the “Conversion Shares”)                                                                        
 issuable upon the conversion of one or both of two Senior Secured Convertible Promissory Notes, the first of which is dated May 6, 2025 
 (each a “Convertible Note,” and such Common Shares thereto subject the “Conversion Shares”), issued pursuant to                         
 that certain note purchase agreement by and between the Company and the Selling Stockholder dated May 6, 2025 (the “Note Purchase       
 Agreement”).                                                                                                                            |

The ELOC Agreement, Warrant Agreement and Note
Purchase Agreement shall collectively sometimes be referred to herein as the “Iss