1990 : Samyang Precision Co. aquisition of Air Rifles Manufacturing Permission
1992 : Eunjin Industrial Co. acquisition of Pellets Manufacturing Permission
1994 : Samyang Precision Co. acquisition of Tear-gas Guns Manufacturing Permission
1999 : Eunjin Industrial Co. acquisition of Air Rifles Manufacturing Permission
2002 : Eunjin Industrial Co. acquisition of Tear-gas Guns Manufacturing Permission
2006 : Joint of Samyang Precision Co. and Eunjin Industrial Co. and Eunjin Leisure Co. (Official name Samyang Industrial Co.)