Orion Resource Partners on Wednesday announced it had closed its Orion Mine Finance Fund III with more than $2.3 billion in capital commitments.
The fund looks to finance the construction of later-stage mine projects through a combination of debt, equity and production-linked investments.
The latest fund has already invested or committed about 60% of the capital raised, a spokesman confirmed in an email.
The previous fund in the series, Orion Mine Finance Fund II, closed at $2.1 billion in 2018.
Investors in the current fund include the $17.2 billion Arizona Public Safety Personnel Retirement System, Phoenix.

