SNT Dynamics Co., Ltd. is a South Korean defense and commercial auto parts, autocannons and machine tools manufacturer founded in 1959. Its heavy weapons equip most frontline units of the Republic of Korea Armed Forces. The company was designated as a defense contractor by the South Korean government in April 1973. SNT Dynamics also holds the rights to production and export licenses as the secondary supplier of Allison Transmission, an American commercial automatic transmission manufacturer. Wikipedia