Company: HSDTW
Filing Date: 2025-07-10
Form Type: S-8
Source: 0001104659-25-066994
Chunk: 6

Company: Solana Co
Filing Date: 2025-07-10
Form: S-8
Chunk 6
---
ursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused
this Registration Statement to be signed on its behalf by the undersigned, hereunto duly authorized, in the City of Newtown, State of
Pennsylvania, on July 10, 2025.

| Helius Medical Technologies, Inc. |                      |                                       |
| By:                               | /s/ Dane C. Andreeff |                                       |
|                                   | Name:                | Dane C. Andreeff                      |
|                                   | Title:               | President and Chief Executive Officer |

<div align='center'>POWER OF ATTORNEY</div>

KNOW ALL PERSONS BY THESE PRESENTS, that each
person whose signature appears below hereby constitutes and appoints Dane C. Andreeff and Jeffrey S. Mathiesen as his or her true and
lawful attorneys-in-fact and agents with full power of substitution, severally, for him in any and all capacities, to sign the Registration
Statement on Form S-8 of Helius Medical Technologies, Inc., and any or all amendments (including post-effective amendments thereto),
and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission,
granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and
necessary to be done in connection therewith, as fully for all intents and purposes as he might or could do in person, hereby ratifying
and confirming all that said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done
by virtue hereof.

Pursuant to the requirements of the Securities
Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the date indicated.

| Signature                
 /s/ Dane C. Andreeff     |     | Title                                                           
 President, Chief Executive Officer                              |     | Date          
 July 10, 2025 |
|:-------------------------|:----|:----------------------------------------------------------------|:----|:--------------|
| Dane C. Andreeff         |     | (Principal Executive Officer) and Director                      |     |               |
| /s/ Jeffrey S. Mathiesen |     | Chief Financial Officer                                         |     | July 10,