SAN JOSE, CALIF. -- GCT Semiconductor Holding Inc. (“GCT”) (NYSE: GCTS), a leading designer and supplier of advanced 4G and 5G semiconductor solutions, and Globalstar, Inc. (Nasdaq: GSAT), the next-generation mobile satellite and communications services provider, announced today a partnership to develop two-way satellite messaging systems for Globalstar’s mobile devices and modules. Globalstar’s recently announced RM200M product will use GCT’s IoT chip GDM7243i, with future products using its 4G LTE chip GDM7243SL and 5G IoT-enabled chipset to support Globalstar’s satellite network.

GCT and Globalstar are showcasing their solutions at Mobile World Congress in Barcelona from March 3 to 6, 2025. Visit GCT in Hall 5, stand 5J56; and visit Globalstar in Hall 2, stand 2C74.

“GCT’s GDM7243i stands out as a top choice for narrowband IoT applications, including trackers and satellite GPS devices,” said Alex Katko, VP of Product Engineering of Globalstar. “Globalstar evaluated many options for our next-generation product suite, and we selected GCT because GDM7243i with GDM7243SL was a compelling solution combo. The narrowband and low-power capability of GDM7243i, alongside the flexible multi-mode GDM7243SL, will enable Globalstar devices and modules to fully connect and seamlessly switch between cellular and satellite networks worldwide.”

“GCT is thrilled to partner with a pioneering leader in satellite communications, a company poised for a bright future with numerous opportunities in this expanding industry,” said John Schlaefer, CEO of GCT. “By leveraging our expertise in IoT, 4G and NTN technology, along with our flagship 4G chips, GDM7243i and GDM7243SL, we are eager to further expand into the non-terrestrial market with our 5G products. Together with Globalstar, we aim to be at the forefront of satellite communications technology and meet the increasing demand for trackers, satellite phones and other IoT solutions.”

Globalstar and GCT are uniquely positioned as the leading companies capable of supporting networks with two-way satellite messaging systems. Together, they will collaborate to develop several LTE and IoT products, enhancing Globalstar’s solution portfolio.