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LIG Nex1 signs agreement on payload development for Cheollian Satellite 5 2025.11.03



· Full-scale development of top-tier climate payload currently available

· Visible light infrared optical payload; high spatiotemporal resolution observation data to be provided year-round

LIG Nex1 publicly announced that it signed an agreement to develop a climate payload for a geostationary weather and space weather satellite (Cheollian Satellite 5). The contract value is about KRW 300 billion and the development is set to be completed by 2031.
Cheollian Satellite 5, which will be launched in 2031, is a global top-level next-generation weather satellite that will provide real-time, around-the-clock observations of weather and space weather from 36,000 km above the equator. A follow-on satellite for Cheollian Satellite 2A, it will supply high spatiotemporal resolution data year-round for early detection of dangerous weather signals and increased accuracy of weather forecasts. 
Through the agreement, LIG Nex1 will solidify its leadership in the domestic satellite industry and related technologies by becoming the first private Korean company to secure geostationary satellite heritage in both satellite buses and payload. Ahead of this, the company signed an agreement to develop Cheollian Satellite 5’s system and bus with Korea Meteorological Administration, Korea AeroSpace Administration, and Korea Meteorological Institute last April.
Notably, it has recently completed the construction of the satellite system assembly facility at its Daejeon House on October 15, where satellite assembly, integration, and testing can be done. This is expected to reduce transport time and minimize the risks that can occur during development.