He said the partners would invest $2.2 million of their own money into the project and secure the rest from private sources.
Those partners, who own two-thirds of the business, have invested about $1.6 million.
The partners then invested $50,000 each in the steel mill.
The 18 partners in the field have invested more than $2 billion.
Those who know Simon well predict that he will continue to invite partners to invest with him.
They declined to discuss how much each partner had invested.
The firm does not follow the traditional venture capital fund model, and the partners invest only their own money on new ventures.
Newmont and its partners have invested about $1.9 billion in the mine.
Toshiba said it was open to, and considering, having other partners invest in the business.
The limited partners invested about $335 million in the arbitrage fund.
