Company: GCTS
Filing Date: 2025-03-26
Form Type: 424B3
Source: 0000929638-25-001279
Chunk: 46

Company: GCT Semiconductor Holding, Inc.
Filing Date: 2025-03-26
Form: 424B3
Chunk 46
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 in this market, it is very important for us to establish close relationships with such foundry companies. Currently, the Company and Samsung Foundry enjoy a mutually beneficial foundry relationship providing secure access to leading-edge technology and manufacturing capacity as our 5G business ramps. From UMC, we currently use 110 RF production process for 4G RF only, and 40nm RF, mixed-signal and digital CMOS production processes for 4G baseband, 4G RF and 5G RF. From TSMC, we currently use 40nm RF, mixed-signal and digital CMOS production processes for 4G RF only. We use Hana Micron, Stats ChipPAC, and Advanced Semiconductor Engineering, Inc., (“ASE”) for most of our assembly and testing requirements on a purchase order basis. We conduct extensive simulation, practical application and standardized test bed studies to validate and verify our products. We closely monitor the production cycle from wafer to finished goods by reviewing electrical parameters, manufacturing processes and test yield data. We also run routine reliability monitoring programs to ensure long term product reliability. This enables us to operate certain test processes on demand to reduce the time-to-market for our products and to help ensure their quality and reliability. The Company and all of our outsourcing partners have implemented and adhered to the quality management system and environmental management system as required by ISO 9001:2015 across the organization. This has enabled the establishment of a robust quality assurance system for production and products, securing trust from our customers. We are also proactively responding to the strengthening of international environmental regulations and meeting market demands. Human Resources As of December 31, 2024, we had 121 full-time employees, of whom 96 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. These employees include 76 in research and development, 18 in sales and marketing, 21 in general and administration and 6 in operations. Management considers labor relations to be positive. We also contract with independent contractors and consultants. Facilities Our principal executive offices are located in San Jose, California, and consist of approximately 5,900 square feet under a lease that expires in October 2026. This facility accommodates our product marketing and finance and administrative activities as well as a small research and development team. We have a 56,500 square-foot facility in Seoul, Korea, which accommodates a research and development center