Trans Tasman Resources has refiled an application to the Environmental Protection Authority (EPA) this week to extract Taranaki seabed ironsands.
While the EPA is yet to post the application on its website, Kiwis Against Seabed Mining (Kasm) yesterday vowed to rally support against the bid.
An EPA spokeswoman confirmed Trans Tasman had lodged an application for a marine consent and marine discharge consent.
''As is normal procedure, the application is currently being assessed by the EPA to determine whether it is complete,'' she said.
The EPA had 10 working days to make this assessment and, if it was complete, the EPA would then publicly notify Trans Tasman's application, she said.
Trans Tasman's previous application prompted an outcry from thousands of west coast North Island residents, recreationalists and environmentalists.
It was declined in early 2014, after the company had spent more than $60million dollars researching the project.
Trans Tasman had wanted to suction dredge 50 million tonnes of ironsand a year from an area 20km to 35km off
the Taranaki coast.
Separately, in early 2015, the EPA rejected Chatham Rock Phosphate's bid to suction dredge phosphate chips from the sea floor on the Chatham Rise, finding seabed destruction could not be mitigated nor the seabed rejuvenated, and the project could destroy stony corals.
Tasman's dredging plans in Taranaki were at depths between 20m and 45m, while Chatham's Chatham Rise project was at depths of more than 400m.
Kasm chairman Phil McCabe said Trans Tasman's last application drew record numbers of submissions to the EPA against the project.
''It's disappointing that Trans Tasman Resources is back with the same application, trying to wear down public opposition.
''But this foreign-owned company should know that they will continue to meet strong resistance from Kiwis who will stand up for their beaches, ocean and marine environment,'' Mr McCabe said in a statement yesterday.
Kasm had a petition of more than 4700 signatures calling for a moratorium on seabed mining in New Zealand waters, given its unknown impact.
Chatham Rock Phosphate chief executive Chris Castle welcomed news of Trans Tasman's latest application and would be ''watching progress with a very keen interest''.
At Chatham's late July annual shareholder meeting, Mr Castle outlined the company's objective was to get EPA consent for the Chatham Rise project and develop the asset.
He noted the company already has a 20-year mining permit, but not environmental consent.
