The Environmental Protection Authority has begun hearing evidence about an application to mine the South Taranaki seabed for iron sand.
Trans Tasman Resources Ltd (TTRL) wants marine consents to mine nearly 66 square kilometres of seabed offshore from Patea.
"Evidence from TTRL confirms that the Iron resource off the west coast of the North Island including within the South Taranaki Bight is world class," says Mike Holm, legal counsel for TTRL.
"All effects are negligible, or able to be acceptably managed. In our submission there are no effects that would warrant the decline of the consent. To the contrary, there are significant positive benefits that will result from the proposal," says Mr Holm.
But, most of the groups presenting submissions oppose the application.