Companies that create sophisticated, museum-like educational presentations in support of the government's anti-graft efforts have sprung up around the country, as the drive to punish corrupt officials has intensified since 2012.

In Beijing, there are 10 companies in the specialized trade, with more soon to join, according to Qin Xiaoyong, general manager of Xuehongji Culture and Media Co, one of the pioneers.

"The number is still expanding, as demand for such educational presentations from government and judicial entities, such as procurators, keeps growing," he said.