Company: GCTS
Filing Date: 2025-03-26
Form Type: 424B3
Source: 0000929638-25-001279
Chunk: 191

Company: GCT Semiconductor Holding, Inc.
Filing Date: 2025-03-26
Form: 424B3
Chunk 191
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putes) Matters not specified in this agreement shall be subject to relevant laws and customs, and if a dispute arises in connection with this contract, the competent court shall be the court with jurisdiction over the location of Lender. November 11, 2024 Lender: Kyeongho Lee [***] By: /s/ Kyeongho Lee -------------------------------- Name: Kyeongho Lee Borrower: GCT Research, Inc. Address: 11F., Specialty Construction Center, 15, Boramae-ro 5-gil, Dongjak Gu, Seoul 07071, Korea By: /s/ Jeongmin Kim -------------------------------- Name: Jeongmin Kim Title: President and Representative Director 2

EXHIBIT 10.27

<div align='center'>CERTAIN INFORMATION CONTAINED IN THIS EXHIBIT, MARKED BY [***], HAS BEEN EXCLUDED FROM THIS EXHIBIT BECAUSE THE REGISTRANT HAS DETERMINED THAT IT IS BOTH NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL.

Loan Agreement</div>

Kyeongho Lee (“Lender”) and GCT Research, Inc. (“Borrower”) are executing the loan agreement as follows.

Article 1 (Purpose)

The purpose of this agreement is to lend operating funds from Lender to Borrower in order to provide short term funds for operating expenditure of Borrower.

Article 2 (Contractor)

Lender: Kyeongho Lee

Borrower: GCT Research, Inc.

Article 3 (Loan conditions)

Loan principal: KRW6,500,000,000

Interest rate: 12.0% per annum, provided that interest payment shall not cause the Company to make interest payments to the Lender in the aggregate that exceeds $120,000 in any 12 month period.

Loan date: January 24, 2025

Maturity date: February 24, 2025

Early repayment: Early repayment before the maturity date is possible at the option of Borrower

Article 4 (Loan execution)

Upon the parties signing this loan agreement, Lender is required to transfer the loan principal amount of KRW6,500,000,000 to the Borrower account.

Borrower bank account number: [***]

Article 5 (Repayment)

Repayment of the loan must be made in Korean Won.

Interest shall be paid on the 28 th day of each month. However