The venture will have $35 million to acquire nickel mines and projects, said the companies, and Waterton will pay $22.5 million for a 50-percent stake in Royal Nickel's Dumont nickel project in Quebec, which the partnership will own.

"Where you have long-term, patient capital, that's willing to unlock value, I think there's lots of opportunities," said Royal Nickel Chief Executive Mark Selby in an interview.

The venture, which has earmarked $5 million to advance development at Dumont, is currently eyeing four to 11 targets that are relatively low-cost and do not need major capital to develop, Selby said.

Prices for nickel, used to make stainless steel, have dropped more than 40 percent since the start of 2015, on rising stockpiles and weak Chinese demand.

"They are willing to invest with a much longer-term view of where nickel markets are headed, as opposed to what today's price is," Selby said of Waterton. "That will allow us to pursue some other opportunities that, otherwise, wouldn't be available."

A feasibility study projects that Dumont will produce 33,000 tonnes annually in its first five years of operations, and 54,000 tonnes per year thereafter, with a mine life of more than 30 years.

Toronto-based Royal Nickel also owns a majority stake in Australia's Beta Hunt gold mine and a 30-percent stake in Manitoba's Reed copper mine.

(Reporting by Susan Taylor; Editing by Tom Brown)

By Susan Taylor