"Marengo has already ruled out deep-sea tailings disposal, the...

"Marengo has already ruled out deep-sea tailings disposal, the avenue which cost the Ramu nickel mine years out of legal action, and it could have another interesting solution on the cards."

Sounds very 11th hour stuff,"could have",much risk mitigation required.
Wonder how long the kiwi mobs being on the job?

Yes it is preferable to DSTD ,which should be applauded.

Raider