HONG KONG – Li Ming, chairman of Beijing Galloping Horse Group, one of China’s leading private sector film and TV groups, died Thursday, age 47.

He is understood to have suffered a massive heart attack.

Li founded Galloping Horse in 1994 as an advertising agency, but changed its focus to production in the late 1990s. It expanded from TV into feature film in 2009 and last year bought and resold a majority stake in U.S. digital effects group Digital Domain.

The company is currently in production on its biggest movie to date, “The Crossing,” being directed by John Woo. The $40 million, two-part, historical adventure drama is currently filming in Taiwan.

Li’s various film credits include “Reign of Assassins” (acquired for North America by The Weinstein Company), “Just Another Pandora’s Box,” “Eternal Moment” and “Kungfu Cyborg: Metallic Attraction.”