A penalty for monopolistic behavior will soon be issued against a US automaker for impeding competition, the nation's top pricing regulator said.

The penalty, against an unnamed company, comes as authorities work to step up antitrust oversight and expand the industries they scrutinize in order to promote fair market competition, according to Zhang Handong, director of the National Development and Reform Commission's price supervision bureau, in an exclusive interview with China Daily.

This is being done while treating foreign and domestic enterprises equally, Zhang emphasized.