Hanyang Ordnance Corporation (Hanyang): Founded in 1891, it mainly produces various light weapons. Later, it was subordinated to Hanyeping Group and became a major manufacturer of various light weapons and ammunition, including light and heavy machine guns, machine guns, and mortars.

Jinling Industrial Group Corporation (Jiangning): Founded in 1891, it mainly produces machine guns, naval machine guns, auxiliary guns, etc. Later, it was integrated into Jinling Heavy Industry, and increased the production of internal combustion engines, aircraft, light ships, tanks and armored vehicles.

Beiyang Industrial Group Corporation (Tianjin): Founded in 1892, it owns the Dalian Shipyard and the former Beiyang Machinery Bureau in Tianjin, which can build various types of warships and produce light artillery and light weapons. Later, it evolved into Beiyang Heavy Industry, adding projects such as internal combustion engines, aircraft, and tank armored vehicles.

Jiangnan Manufacturing Group Company (Shanghai): Established in 1892 on the basis of the former Jiangnan Manufacturing Bureau, it manufactures various mountain heavy artillery, fortress guns and warship main guns. Later, it was integrated into Jiangnan manufacturing, mainly producing artillery and ammunition, and can build large and medium-sized warships.

Southern Electronics Industry Group Corporation (Shanghai): Founded in 1892, it mainly produces and installs various telegraph systems and marine electrical equipment. Later, it was integrated into Nanfang Electronics and became a major manufacturer of military communication equipment.