Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 349

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 349
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 Paycheck Protection Program Loan
On February 24, 2021 and May 5, 2020, the Company received loans (“PPP Loans”) from US Bank in the amounts of $1,158,265 (“Loan 2”) and $1,158,266 (“Loan 1”), respectively, to fund payroll, rent and utilities through the Paycheck Protection Program (“PPP”). Original loan terms were revised by the PPP Flexibility Act of 2020. Under the terms of the PPP, up to 100% of the loan and related interest was forgivable if the proceeds were used for covered expenses and certain other requirements related to wage rates were met. For Loan 1, the Company applied for forgiveness on June 7, 2021, and received forgiveness of $873,151 in principal and $9,823 in interest from the Small Business Administration (“SBA”) on June 14, 2021. For Loan 2, the Company applied for forgiveness on November 9, 2021, and received forgiveness of $930,246 in principal and $6,822 in interest on November 15, 2021.

The remaining balance of Loan 1 of $285,115 is payable in monthly installments of $6,400, including interest at 1%, beginning August 5, 2021, with the final payment due May 5, 2025. As of December 31, 2023, the total principal outstanding under Loan 1 was $107,979, of which $76,058 was current and $31,921 was noncurrent. As of December 31, 2022, the total principal outstanding under Loan 1 was $183,273, of which $75,294 was current and $107,979 was noncurrent.

<div align='center'>F-16</div>

#### QT IMAGING, INC.

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

The remaining balance of Loan 2 of $228,019 is payable in monthly installments of $4,605, including interest at 1%, beginning December 27, 2021, with the final payment due February 27, 2026. As of December 31, 2023, the total principal outstanding under Loan 2 was $118,369, of which $54,308 was current and $64,061 was non