Toroparu

Location
Cuyuni-Mazaruni Region, Guyana
Mine Type
Open Pit
Ownership
100%

Large, Long-Life, Low-Cost Open Pit Gold Project in Guyana

Toroparu is a 100% owned gold development project in western Guyana. In October 2025, Aris Mining published the results of its Preliminary Economic Assessment (PEA) confirming Toroparu as a large-scale, long-life open pit gold project with attractive economics.

 A Prefeasibility Study (PFS) for Toroparu is underway, targeted for completion in the second half of 2026, supporting a rapid transition to construction readiness.

Reserves & Resources Technical Report

Preliminary Economic Assessment Results{{1}}

5.3 Moz

M&I Gold Resources at 1.3 g/t

1.2 Moz

Inferred Gold Resources at 1.6 g/t

Mill Capacity

7.0 Mtpa
(processing capacity)

Mine Life

21.3 years

Life of Mine Gold Production

5.0 Moz

Average Annual Gold Production (LOM)

235 koz Au

By-products

Ag, Cu

Key Financial Metrics{{1,2}}

$1,289/oz

AISC

$443M

Average LOM Annual EBITDA

$820M

Initial Construction Capital

$1.8B

After-tax NPV5%

  1. This preliminary economic assessment is preliminary in nature, it includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the preliminary economic assessment will be realized. Mineral resources that are not mineral reserves do not have demonstrated economic viability.
  2. Assuming a gold price of $3,000/oz (base case).

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