She said the draft showed there was clearly an attempt to get rid of section 9 solely because of concerns it would deter investment.
Yesterday the Prime Minister said he remained confident a solution would be found to the issue of the Treaty clause.
"It's my view we can find a solution to accommodate the expectations of Maori, but which equally is not something that is put on private shareholders," Mr Key said.
The content of the changes revealed in the draft - including references to the lack of powers ministers would have and the likelihood a Treaty clause would deter investment from institutional investors - prompted further fire against the asset sales from opposition parties yesterday.
Labour leader David Shearer said the deleted parts showed National's focus was not on "mum and dad" investors but on large foreign investors who were most likely to be scared off by a Treaty clause.
He said the Prime Minister had also repeatedly reassured the public that retaining majority shareholding meant the Government would retain control of the assets. However, the draft showed officials had repeatedly warned that ministers would have limited powers.