GCT Semiconductor's Advanced LTE Chip
Powers New Modacom 4G Router in Japan

San Jose, CA and Taipei, Taiwan – June 2, 2015 – GCT® Semiconductor, a leading designer and supplierof advanced4G mobile semiconductor solutions, today announced that its advanced LTE chip GDM7243Mpowers the new 4G LTEhome router,the URoad-Home 2+, developed by Modacom, a leading router provider, and was recently launched by UQ Communications (UQ) in Japan.The new home router, ideal for use as a residential home gateway, is optimized for use on UQ’s TDD-LTE-compliant network, and supports 110 Mbps downlink. GCT’s market-proven chip, GDM7243M,supports Category 4 FDD/TDD-LTE and was fully certified by KDDI in July 2014.

“We’re excited to be part of another successful UQ product launch and to be working closely again with Modacom,” says Alex Sum, vice president of sales and marketing at GCT Semiconductor, Inc. “Our cutting edge multi-mode LTE solution, GDM7243M, continues to enable commercial devices that offer high performance with high speeds, supporting FDD and TDD LTE. Moving forward, GCT continues to take advantage of the growing LTE market opportunities, and is also focusing on offering low-power, low-cost LTE chips for the Internet of Things (IoT) market.”

Please visit GCT’s hospitality suite at Computex, at the Grand Hyatt Taipei, June 3-5.

About Modacom Co, Ltd.

Modacom Co., Ltd. is a Korea-based company engaged in the manufacture of wireless communications equipment. The Company produces wireless data communication terminals, including long term evolution (LTE) and WiMax products, broadband mobile routers, customer premise equipment (CPE), universal serial bus (USB) dongles, machine to machine (M2M) modules, express cards and others. It also engages in the development of software. The Company distributes its products within domestic market and to overseas markets.

About GCT Semiconductor, Inc.

GCT Semiconductor is a leading fabless designer and supplier of advanced 4G LTE and WiMAX semiconductor solutions. GCT’s market-proven LTE solutions, commercially available since 2010, have enabled fast and reliable LTE connectivity to numerous commercial devices such as smartphones, tablets, hotspots, USB dongles, routers, M2M applications, etc., for the world’s top LTE carriers. GCT’s system-on-chip solutions integrate radio frequency, baseband modem and digital signal processing functions, therefore offering complete 4G platform solutions with small form factors, low power consumption, high performance, high reliability and cost effectiveness. For more information, visit www.gctsemi.com.

GCT Semiconductor Contacts:

Alex Sum
VP Sales/Marketing
GCT Semiconductor, Inc.
Tel: +1.408.434.8022
Mobile: +1.408.835.9686
Email: alexsum@gctsemi.com

Paul Yook
Product Marketing Director
GCT Semiconductor, Inc.
Tel: +82 (2) 2167 1176
Mobile: +82 10 9117 9341
Email: PaulYook@gctsemi.com