Long Guozheng, an official of the investment and cooperation section of the zone said, "We will never allow heavy polluting projects to be built in the zone."
Zhejiang has set the goal of building an ecological province. Yet challenges lie ahead.
Data with the provincial environmental protection department showed water of one third of the provincial rivers was rated Category V last year, despite some improvements.
China rates its water quality from Category I to Category V, with the latter being too toxic even to touch.
Xu Zhen, director of Zhejiang Provincial Environmental Protection Department, said stricter environmental protection requirements would be imposed to promote ecological progress.