Northern Heavy Industries Group Co. Ltd (hereinafter referred to as NHI Group) is as a solely state owned enterprise established in 2006 after a merger of SHMG (Shenyang Heavy Machinery Group) and SMMG (Shenyang Mining Machinery Group). After the acquisition of Wirth Group Holding/ NFM Technologies, NHI Group became a multinational enterprise. In 2009, NHI was listed among Top 500 Chinese Enterprises.
Shenyang Mining Machinery Group was established in 1921, with the name of Daheng Iron Plant. Shenyang Heavy Machinery Group was established in 1937, with the name of Sumitomo Shenyang Plant, which was the first heavy machinery plant of China.