7. Taomee

Taomee Holdings received a non-binding buyout offer from its senior executives, announced the children's entertainment company on May 30, adding to a growing number of US-listed mainland firms that seek privatization.

Its share rose 4.8 percent from the beginning of this year against a nearly 60 percent gain in China's benchmark Shanghai Composite Index.

An employee presents the stand of Taomee with toys made by the company at Shanghai TV festival exhibition in Shanghai on June 12, 2014. [Photo/IC]