A Wellington-based plans to sue the Government for continuing to ship used lead acid batteries overseas.
The Exide Smelter in Petone said the Government was breaching the Basel and Waigani treaties' obligations to limit the international transport of hazardous waste, and to favour New Zealand facilities where batteries could be disposed of or recycled in an environmentally sound way.
"We believe the Government has failed to meet these legal obligations in exercising its discretion to grant export permits," Exide's Australasian managing director John Cowpe said.
Green MP David Clendon raised concerns about whether New Zealand was meeting international convention agreements in Parliament last week.
Environment Minister Nick Smith said his preference was for the waste to be managed in New Zealand, but the Government needed to be satisfied Exide was being run by best world practice.