{"url_path":"/sec/gcts-wt/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits.","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-12","source_url":"https://www.sec.gov/Archives/edgar/data/1851961/0001193125-26-219536-index.html","accession_number":"0001193125-26-219536","cik":"0001851961","ticker":"GCTS","issuer_name":"GCT Semiconductor Holding, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1851961/0001193125-26-219536-index.html","primary_entity_key":"0001851961","primary_entity_name":"GCT Semiconductor Holding, Inc."},"word_count":578,"has_tables":true,"body_markdown":"# ITEM 6. Exhibits.\n\n \n\n \n\nExhibit Index\n\nExhibit\nNo.\n\nDescription\n\n4.1\n\n \n\n[Form of Convertible Promissory Notes issued to Obsidian Global GP LLC (incorporated by reference to Exhibit 4.10 to the Registrant's Annual Report on Form 10-K, filed with the SEC on March 25, 2026).](https://www.sec.gov/Archives/edgar/data/1851961/000119312526124183/gcts-ex4_10.htm)\n\n4.2\n\n \n\n[Form of Warrant, dated as of February 24, 2026, issued by GCT Semiconductor Holding, Inc. to the Holder (incorporated by reference to Exhibit 10.3 to the Registrant's Current Report on Form 8-K, filed with the SEC on February 25, 2026).](https://www.sec.gov/Archives/edgar/data/1851961/000092963826000748/exhibit10-3.htm)\n\n10.1\n\n \n\n[Amendment No. 1 to Loan Agreement, dated March 20, 2026, by and between Anapass Inc. and GCT Research, Inc. (incorporated by reference to Exhibit 10.37 to the Registrant's Annual Report on Form 10-K, filed with the SEC on March 25, 2026).](https://www.sec.gov/Archives/edgar/data/1851961/000119312526124183/gcts-ex10_37.htm)\n\n10.2\n\n \n\n[Convertible Promissory Note Purchase Agreement, dated as of March 25, 2026, by and between GCT Semiconductor Holding, Inc. and Obsidian Global GP LLC (incorporated by reference to Exhibit 10.38 to the Registrant's Annual Report on Form 10-K, filed with the SEC on March 25, 2026).](https://www.sec.gov/Archives/edgar/data/1851961/000119312526124183/gcts-ex10_38.htm)\n\n10.3\n\n \n\n[Amendment No. 1 to Convertible Promissory Note, dated as of February 24, 2026, by and between GCT Semiconductor, Inc. and the Holder (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K, filed with the SEC on February 25, 2026).](https://www.sec.gov/Archives/edgar/data/1851961/000092963826000748/exhibit10-1.htm)\n\n10.4\n\n \n\n[Warrant Issuance Agreement, dated as of February 24, 2026, by and between GCT Semiconductor Holding, Inc. and the Holder (incorporated by reference to Exhibit 10.2 to the Registrant's Current Report on Form 8-K, filed with the SEC on February 25, 2026).](https://www.sec.gov/Archives/edgar/data/1851961/000092963826000748/exhibit10-2.htm)\n\n31.1*\n\n \n\n[Certification of the Principal Executive Officer pursuant to Rule 13a‑14(a) and Rule 15d‑14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](gcts-ex31_1.htm)\n\n31.2*\n\n \n\n[Certification of the Principal Financial Officer pursuant to Rule 13a‑14(a) and Rule 15d‑14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](gcts-ex31_2.htm)\n\n32.1**\n\n \n\n[Certification of the Principal Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](gcts-ex32_1.htm)\n\n32.2**\n\n \n\n[Certification of the Principal Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](gcts-ex32_2.htm)\n\n101.INS*\n\n \n\nInline XBRL Instance Document – the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document.\n\n101.SCH*\n\n \n\nInline XBRL Taxonomy Extension Schema Document With Embedded Linkbase Documents.\n\n104\n\nCover Page formatted as Inline XBRL and contained in Exhibit 101\n\n \n\n* Filed herewith\n\n** The certifications attached as Exhibits 32.1 and 32.2 that accompany this Quarterly Report, are deemed furnished and not filed with the Securities and Exchange Commission and are not to be incorporated by reference into any filing of GCT Semiconductor Holding, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Quarterly Report, irrespective of any general incorporation language contained in such filing.\n\n37\n\n \n\n[Table of Contents](#toc_page)\n\n \n\nSIGNATURES\n\nPursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.\n\n \n\nGCT Semiconductor Holding, Inc.\n\n \n\n \n\nDate: May 12, 2026\n\nBy:\n\n/s/ John Schlaefer\n\nName:\n\nJohn Schlaefer\n\nTitle:\n\nChief Executive Officer\n\n \n\nGCT Semiconductor Holding, Inc.\n\n \n\nDate: May 12, 2026\n\nBy:\n\n/s/ Edmond Cheng\n\nName:\n\nEdmond Cheng\n\nTitle:\n\nChief Financial Officer\n\n \n\n38"}