Chinese digital advertising company VisionChina Media Inc said Wednesday that it has signed a five-year contract with Beijing's subway system.
The agreement extends VisionChina's existing contract with the subway system.
VisionChina, which is based in Beijing, operates a mobile digital television and advertising network aimed at subway riders underground and those riding buses.
Financial details of the contract were not disclosed.
Shares in VisionChina added 6 cents to $3.35 on Wednesday.
