BEIJING (AP) General Motors Co. says its Chinese joint venture has received government approval to build a Cadillac factory as the company tries to boost sales of its luxury brand.

GM said Wednesday that plans call for the factory in Shanghai to begin production in 2015 with an annual capacity of 150,000 vehicles.

The factory is being built by Shanghai GM, the American automaker's joint venture with state-owned Shanghai Automotive Industry Corp.

GM said total investment should be at least 8 billion yuan ($1.3 billion).

The president of GM's China arm, Bob Socia, said last month the automaker wants to expand Cadillac's share of the country's fast-growing luxury car market.