Company: GCTS
Filing Date: 2025-03-26
Form Type: 424B3
Source: 0000929638-25-001281
Chunk: 212

Company: GCT Semiconductor Holding, Inc.
Filing Date: 2025-03-26
Form: 424B3
Chunk 212
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1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

| Date: March 25, 2025 |     | By: | /s/ Edmond Cheng        |
|:---------------------|:----|:----|:------------------------|
|                      |     |     | Edmond Cheng            |
|                      |     |     | Chief Financial Officer |

EXHIBIT 97.1

<div align='center'>GCT SEMICONDUCTOR HOLDING, INC.</div>

### CLAWBACK POLICY
<div align='center'>(as adopted March 15, 2024)</div>

I. Introduction

The Board of Directors (the “Board”) of GCT Semiconductor Holding, Inc. (the “Company”) believes that it is in the best interests of the Company and its stockholders to create and maintain a culture that emphasizes integrity and accountability. The Board has therefore adopted this policy which provides for the recoupment of certain executive compensation in the event of an accounting restatement resulting from material noncompliance with financial reporting requirements under the federal securities laws (the “Policy”). This Policy is designed to comply with Section 10D of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 303A.14 of the New York Stock Exchange Listed Company Manual (the “Clawback Listing Standards”).

II. Administration

This Policy shall be administered by the Board or, if so designated by the Board, the compensation committee of the Board (the “Compensation Committee”), in which case references herein to the Board shall be deemed references to the Compensation Committee. Any determinations made by the Board shall be final and binding on all affected individuals.

III. Covered Executives

This Policy applies to the Company’s current and former executive officers, as determined by the Board in accordance with the definition in Section 10D of the Exchange Act and the Clawback Listing Standards, and such other employees who may from time to time be deemed subject to the Policy by the Board (“Covered Executives”).

IV. Recoupment; Accounting Restatement

In the event the Company is required to