Tianjin Qingyuan Electric Vehicle Co., Ltd. has completed the construction of the world's biggest electric vehicle R&D and manufacturing base in Tianjin's industrial development zone, and the facility has started mass production of electric vehicles, said xinhuanet.com today.

The base consists of entire car assembly line, power assembly line, and electric vehicle development & experiment center. The electric auto assembly line has an annual capacity of 20,000 units, producing electric cars and hybrid buses. Power assembly line can produce 30,000 sets of powertrain systems annually for electric autos, hybrid autos and fuel cars.

Tianjin Qingyuan has developed six series of electric vehicles, including electric sedans, electric trucks and electric trucks. The first batch of 456 electric trucks made in this base have been exported to the United States. By the end of 2008, its exports of electric vehicles will exceed 2,000 units.