Company: QTIWW
Filing Date: 2025-01-31
Form Type: S-1/A
Source: 0001628280-25-003316
Chunk: 466

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-01-31
Form: S-1/A
Chunk 466
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5%   |     |     |          5.1 |   % |     |     |          4.7 |             % |
| Discount rate             |             |     |             | 9.7% - 25.8%  |     |     |         11.3 |   % |     |     |              | 24.4% - 29.4% |
| Probability of conversion |             |     |             | 25.0% - 55.0% |     |     |         25.0 |   % |     |     |         65.0 |             % |

<div align='center'>F-85</div>

#### GIGCAPITAL5, INC.

#### Notes to Financial Statements
The following table presents information about the change in fair value of the Company’s Level 3 Working Capital Note during the years ended December 31, 2023 and 2022:

|                                  |     |   |   Year Ended 
 December 31, 
         2023 |     |   |   Year Ended 
 December 31, 
         2022 |
|:---------------------------------|:----|:--|-------------:|:----|:--|-------------:|
| Fair value - beginning of period |     | $ |      257,492 |     | $ |            — |
| Additions                        |     |   |    1,240,000 |     |   |      260,000 |
| Change in fair value             |     |   |        8,897 |     |   |       -2,508 |
| Fair value - end of period       |     | $ |    1,506,389 |     | $ |      257,492 |

<div align='center'>F-86</div>

#### GIGCAPITAL5, INC.

#### Notes to Financial Statements

#### 9.

#### INCOME TAX
The sources of loss before provision for income taxes are as follows for the year ended December 31, 2023 and 2022:

|          |     |   |   Year Ended 
 December 31, 
         2023 |     |   |   Year Ended 
 December 31, 
         2022 |
|:---------|:----|:--|-------------:|:----|:--|-------------:|
| Domestic |     | $ |   -3,605,472 |     | $ |