Company: QTIWW
Filing Date: 2025-01-16
Form Type: S-1
Source: 0001628280-25-001723
Chunk: 333

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-01-16
Form: S-1
Chunk 333
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 of the Note was $ 2,426,263, net of unamortized debt issuance costs of $ 68,737. Interest expense, including amortization of debt issuance costs, for the years ended December 31, 2023 and 2022 was $ 340,758and $ 326,255, respectively.

Bridge Loan

In November 2023, the Company entered into a Bridge Loan with the Bridge Lenders in aggregate amount of $ 1,000,000.

Each Bridge Loan of $ 200,000bears no interest but has a cash option value at the date maturity of 120% or $ 240,000of the Bridge Loan at each Bridge Lender’s option. Maturity date is the closing date of the Business Combination as defined in Note 1. The Bridge Loan conversion is at $ 2.00per share on a post-business combination and, as of December 31, 2023, an aggregate of 1,369,255shares of common stock would be issued if the entire Bridge Loan was converted.

<div align='center'>F-17</div>

#### QT IMAGING, INC.

### NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
<div align='center'>For the years ended December 31, 2023 and 2022</div>

As of December 31, 2023, the outstanding amount of the Bridge Loan, excluding the US Capital Note, was $ 774,337, net of unamortized debt issuance costs of $ 25,663. Interest expense from the amortization of debt issuance costs for the year ended December 31, 2023 was $ 21,592.

Future principal payments on the long-term debt as of December 31, 2023 are as follows:

| Year ending December 31:                   
 2024                                       |     |   |  4,261,221 |
|:-------------------------------------------|:----|:--|-----------:|
| 2025                                       |     |   |     86,784 |
| 2026                                       |     |   |      9,196 |
| Total Payments                             |     |   |  4,357,201 |
| Less: Unamortized debt issuance costs      |     |   |    -61,857 |
| Less: Current maturities of long-term debt |     |   | -4,199,362 |
| Long-term debt                             |     | $ |