Company: HSDTW
Filing Date: 2025-11-12
Form Type: NT 10-Q
Source: 0001104659-25-110338
Chunk: 1

Company: Solana Co
Filing Date: 2025-11-12
Form: NT 10-Q
Chunk 1
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 Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and |                                                                                                                                    |
| (c) | The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.                                                                                                                                                                                                                                                                                                                                                                 |                                                                                                                                    |

PART III – NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q,
10-D, N-CEN, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

Solana Company (formerly known as Helius Medical Technologies, Inc.)
(the “Registrant”) has determined that it is not able to file its quarterly report on Form 10-Q for the quarter ended
September 30, 2025 (the “Form 10-Q”) within the prescribed time period without unreasonable efforts or expense.
As disclosed in the Registrant’s Current Report on Form 8-K filed with the SEC on October 16, 2025, the Audit Committee
of the Board of Directors of the Registrant received the resignation of Baker Tilly US, LLP as the Company’s independent registered
public accounting firm, effective October 15, 2025. On October 15, 2025, the Committee approved the appointment of CBIZ CPAs
P.C. as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025, effective
immediately. The Registrant, while making efforts to expedite the process, requires additional time to finalize the review of the financial
statements to be included in the Form 10-Q. While there can be no assurance, the Company anticipates that the Form 10-Q will
be filed as soon as practicable and in any event on or prior to the fifth calendar day following the prescribed due date.

<div align='center'>PART IV – OTHER INFORMATION</div>

| (1) | Name and telephone number of person to contact in regard to this notification:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     |            |     |                   |
|     | Jeffrey S. Mathiesen                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |     |       -215 |     | 944-6201          |
|     | -Name                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |     | -Area code |     | -Telephone Number |
| (2) | Have all other periodic reports required under Section 13 or 15(d)