GCT Semiconductor Holding Inc. ("GCT" or the "Company") (NYSE:GCTS), a leading designer and supplier of advanced 5G and 4G semiconductor solutions, today announced it has signed a reference platform agreement with one of the world's largest satellite communications providers, supplementing a 5G/4G Chipset Licensing agreement executed in January. Under this new agreement, GCT will provide a reference design built around its 5G and 4G chipsets that will be used to expedite the development of the provider's next-generation user equipment, enabling high-bandwidth, high-speed communications across satellite and terrestrial networks. By leveraging GCT's new 5G platform, the provider can more efficiently enable OEM/ODM suppliers of user equipment which will further support the expansion of its satellite network and customer base.