SNT Dynamics was established in April 1959 under the name Yehwa Shotgun (Korean:예화 산탄공기총 제작소;Hanja:銳和散彈空氣銃製作所;RR:Yehwa Santan Gonggichong Jejakso). In 1995 it changed its company name to Tongil Heavy Industries Co. Ltd. and in 2005 it changed its name to S&T Dynamics Co. Ltd. In 2006 it completed the acquisition of Daewoo Precision Industries, now SNT Motiv. On 26 February 2021, the company name was changed from S&T Dynamics to SNT Dynamics and on 28 February 2023 the company changed its South Korean domain.