29 October 2025 – KT SAT, Korea’s leading satellite communications operator, and SKY Perfect JSAT Corporation (SKY Perfect JSAT), Japan’s premier satellite services provider, announced that they signed a memorandum of understanding (MoU) to jointly develop and test the 5G Non-Terrestrial Network (NTN) technologies, and prepare for future commercialization of GEO-based 5G NTN services. Through this MoU partnership, both companies aim to jointly advance the technical validation of GEO-based NTN ground and user equipment, with the goal of establishing a reference architecture for GEO transparent 5G NTN operations using Ka and Ku-band frequencies. The collaboration seeks to promote open-standard interoperability, and strengthen engagement with global technology vendors. Read more