Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 396

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 396
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 Company assessed the materiality of this misstatement in accordance with SEC Staff Accounting Bulletin No. 108 – “Quantifying Misstatements” and concluded this error was not qualitatively material. As such, the correction of the error for the affected periods will be reflected prospectively in the Quarterly Reports on Form 10-Q for fiscal year 2025. Refer to the schedules in Note 17 in the consolidated financial statements included in the Form 10-K for the year ended December 31, 2024 filed on March 31, 2025, as well as Note 16, Revised Financial Statements for effects of this revision.

Use of Estimates

The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, and expenses and the related disclosure of contingent assets and liabilities. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from

<div align='center'>F-57</div>

#### QT IMAGING HOLDINGS, INC.

### Notes to Condensed Consolidated Financial Statements
<div align='center'>(Unaudited)</div>

other sources. Actual results may differ from these estimates. In addition, any change in these estimates or their related assumptions could have an adverse effect on the Company’s operating results.

Business Risk and Concentration of Credit Risk and Supply Risk

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash and accounts receivable. The majority of the Company’s cash is invested in U.S. dollar deposits with reputable banks in the United States. Management believes that minimal credit risk exists with respect to the financial institutions that holds the Company’s cash. At times, such cash may be in excess of insured limits established by the Federal Deposit Insurance Corporation.

The Company performs ongoing credit evaluations of its customers and generally does not require collateral for accounts receivable. Payment terms range from cash in advance to 30days from delivery of p roducts or services but may fluctuate depending on the terms of each specific contract. The Company reviews its receivables for collectibility based on historical loss patterns, aging of the receivables, and assessments of specific identifiable client accounts considered at risk or uncollectible and provides allowances for potential credit losses, as needed. The Company also considers any changes to the financial condition of its clients and