GCT Semiconductor Holding, Inc.

GCT Semiconductor, Inc. operates in the semiconductor industry, offering commercial products and related services. The company engages in semiconductor technology development, supported by collaborative research and development arrangements with partner organizations such as Samsung and Alpha Holdings. Its commercial activities encompass both product sales and technical service offerings. GCT Semiconductor supplies its technology and components to a portfolio of commercial clients and equipment manufacturers, with customer exposure that includes major business partners identified in its disclosures as Customer B, Customer F, Customer H, Customer K, Customer M, and Customer O.

Geographic presence and scale reflected in the filing span several international markets, including the United States, South Korea, Taiwan, China, and Germany. The provided filing text does not disclose the location of the corporate headquarters, the specific count of physical facilities, or total employee figures.

Summary of the business section of GCT Semiconductor's latest annual report, written by StockData.

“As of December 31, 2025, we had 126 full-time employees, of whom 101 were located in Korea, 18 were in the United States, three were in Taiwan, two were in China and one was in each of Hong Kong and Japan.”