64 killed and 165 wounded. In October 1985 the division was renamed as the 58th Infantry Division (). Tank Regiment, 20th Army Corps was attached and renamed as Tank Regiment, 58th Infantry Division; Anti-aircraft Artillery Regiment was activated from an unknown unit. Since then the division was composed of: 172nd Motorized Infantry Regiment; 173rd Motorized Infantry Regiment; 174th Motorized Infantry Regiment; Tank Regiment; Artillery Regiment; Anti-aircraft Artillery Regiment. The division maintained as a Northern Motorized Infantry Division, Category A from 1985 to 1998. In 1998 the division was reduced and renamed as the 58th Motorized Infantry Brigade (). The brigade conversion in 1998 was part of the PLA's effort to experiment with a Corps-Brigade-Battalion force structure instead of the traditional Corps-Division-Regiment structure. In 1999 the brigade was further re-organized as the 58th Mechanized Infantry Brigade (), becoming the first mechanized brigade of the PLA Ground Force. The brigade is one of the units of the Jinan MR tasked to serve as one of the mobile response elements capable of reinforcing Groups Armies in other Military Regions in case of emergency or war. In 2017 the brigade was reorganized as the 58th Medium Combined Arms Brigade () and transferred to the 83rd Group Army, following 20th's disbandment. References Infantry brigades of the People's Liberation Army Military units and formations established in 1949