Nanjing Chenguang Group Co.,Ltd (NCGC) is a large comprehensive machinery manufacturing group corporation subordinated to China Aerospace Science and Industry corporation. It is evaluated National First Class Enterprise and one of hundred best enterprises in machinery field in China. It has been honored excellent enterprise for the ideological and political work and awarded civilization unit etc by Jiangsu provincial government and Nanjing municipality.

NCGC originally was known as Jinling Machinery Manufacturing Bureau set up by Li Hongzhang, one of the primary ministers in Qing Dynasty during the westernization movement in 1865. NCGC has been specialized in research, development and production of military products in many years and development of electromechanical equipment products. It has made significant contribution to build up national defense construction. Nanjing Chenguang Machinery Manufacture was appointed one of 100 leading enterprises in modern corporated system in 1996 and then was reformed to a state-own corporation, Nanjing Chenguang Group Co.,Ltd(NCGC).In 2001,Aerosun Corporation was listed in Shanghai Stock Exchange successfully with the quality assets of special-purpose vehicles and various kinds of metal hoses. Nanjing Chenguang Service Industry company has established after adjustment of enterprise structure. Three companies (Chenguang group, Listed company and Service industry company) have shaped tripartite confrontation and development together.

NCGC has the right to self-manage imports and exports. We have set up provincial R&D center and National Postdoctoral Programme. The aircraft fuelling vehicles manufactured by NCGC has filled in the field in China. NCGC is one of the largest production and research bases for research and production of flexible metal hose and bellow expansion joints in China. The statue of Buddha of Temple of Heaven in Hongkong manufactured by NCGC has won the national gold metal for high quality. During the return of Hongkong and Macao to mainland in 1997 and 1999 , NCGC manufactured the bronze "Ever-blooming redbud Flower" and "Flushing Lotus", two gifts for Hongkong and Macao By central government and enjoy high reputation of China Aerospace both at home and abroad.

The "Three Force" brand of NCGC is one of the famous brand in Jiangsu province. It has won the honour for its work in the areas of national significant technology equipment and engineering research many times.

Nanjing Chenguang committed to NC Cots Cylindrical Grinder, textile machinery auxiliary equipment R & D and manufacturing, is the earliest development of NC Cots Cylindrical Grinder machine tool enterprises.