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.