China: official sanctuaries for polluting enterprises?

In a short piece on ENN the following tantalising paragraph was included beside this picture.

Smoke Spews out of Chimneys at a Cement Plant in China

Smoke spews out of chimneys at a cement plant in Wuhu, east China's Anhui province December 1, 2006.

Industrial parks in parts of China have become official sanctuaries for polluting enterprises to dodge inspections by the environmental protection authorities, Xinhua News Agency reported.

Surely this deserves more attention. "Offical sancturies for polluting enterprises"?

This casts a whole new light on the idea of within country pollution havens. Would firms move into these areas JUST to avoid regulation? Would the Chinese government really sanction such a move or is this statement "corruption" related.