GE and GM are both American global companies and are two independent corporate legal persons with no relationship between them.

Not a parent company.

General Motors GM is an almost entirely automobile-related business.

GE's business covers many fields, from consumer appliances to aerospace engines, to medical and health care, to the financial industry.

Recently, it is acquiring shares of Shenzhen Development Bank and becoming the second shareholder.

General Dynamics GDC is the largest military ordering contractor in the United States, mainly responsible for arms.

Shanghai General Motors is affiliated to Shanghai Automotive Industry Group. Shanghai Automotive Industry Group introduced American General Motors' Buick sedans to be produced in Shanghai General Motors, so the two parties are a joint venture.

GM is the abbreviation of General Motors of the United States. General Motors' car and truck brands include: Buick, Cadillac, Chevrolet, GMC, Holden, Hummer, Opel, Pontiac, Saab, Saturn and Vauxhall.

In some countries, GM's sales network also sells automobile products manufactured by GM Daewoo, Isuzu, Fuji (Suba) and Suzuki.

Extended information: General Motors (China) Investment Co., Ltd. General Motors (China) Investment Co., Ltd. is a wholly-owned enterprise established by General Motors Company in Shanghai.

It owns all of General Motors' local employees in China and is also an investor in General Motors' joint ventures in China.

Shanghai General Motors Co., Ltd. Shanghai General Motors Co., Ltd. is China's leading passenger car production joint venture jointly established by General Motors China and Shanghai Automotive Industry (Group) Corporation.

General Motors China owns 50% of the shares.

Shanghai General Motors was established in June 1997. It has a huge sales, after-sales service and parts supply network; it imports, produces and sells Buick, Cadillac and Chevrolet brand products.

Following the manufacturing bases in Shanghai, Yantai, Shandong, and Shenyang, Liaoning, Shanghai General Motors has started construction of its fourth domestic manufacturing base in Wuhan, Hubei.

In 2012, Shanghai General Motors' domestic sales totaled 1,331,022 vehicles, setting another record high.