The Chunmoo also called K239 K-MLRS is a multi-caliber launch rocket system designed and manufactured by the South Korean Company Hanwha Corporation. It is a new generation of artillery weapons able to fire different calibers of rockets. The South Korean government awarded a development contract to Hanwha in 2009, and the development of the Chunmoo was completed in 2013. It entered into service with the South Korean Army (ROK) in 2014.