Toroparu

A High‑return, Long‑life Gold Growth Engine

Toroparu is a 100%‑owned gold development project in western Guyana with substantial open‑pit and underground mineral resources that has emerged as a major growth and diversification opportunity for us at Aris Mining.

A 2025 Preliminary Economic Assessment confirmed Toroparu as a large‑scale, long‑life open‑pit gold project with robust economics. A Prefeasibility Study is underway in 2026 to advance the project toward construction.

Operational Focus

We are looking to build Toroparu as one of the next large-scale, modern gold mines in Guyana.

Where We Operate

Toroparu Operations at a Glance

Mineral Resources

5.3 Moz M&I gold resources at 1.3 g/t

1.2 Moz inferred gold resources at 1.6 g/t

Life of Mine (LOM)

5.0 Moz

(production potential)

Annual Average

235 koz

(production potential)

2026 Catalysts

PFS targeted for completion in H2 2026, positioning the project for a rapid transition into construction readiness.

Site Facts

  • Location: Cuyuni-Mazaruni, Guyana (~215 km from Georgetown).
  • Type: Open Pit Project.
  • Guyana's mining sector is advancing rapidly, driven by its attractive regulatory and investment environment.
  • The Prefeasibility Study is well underway, targeted for completion in 2026, with a goal of advancing toward construction.

Preliminary Economic Assessment Results{{1}}

Operational Project Parameters

Mill Capacity

7.0 Mtpa
(processing capacity)

Mine Life

21.3 years

Life of Mine

5.0 Moz
(gold production)

LOM Annual Average

235 koz
(gold production)

By-products

Ag, Cu

Key Financial Metrics

$1,289/oz

AISC{{2}}

$443M

Average LOM Annual EBITDA{{2}}

$820M

Initial Construction Capital

$1.8B

After-tax NPV5%

25.2%

After-tax IRR

  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. Base case gold price of $3,000/oz.

Contract Mining Partners

Our Partnership-driven Model

We integrate local small-scale miners into a formal, safe, and environmentally responsible framework through our Contract Mining Partners (CMPs). This allows us to support thousands of jobs while securing reliable mill feed. Our CMP model allows us to formalize artisanal mining, streamline permitting, and expand technical support.

Learn More About Our Contract Mining Partners

Reserves & Resources

Review our Mineral Reserves & Resources to better understand the scale behind our growth story — from high-grade producing mines to longer-term expansion projects across Colombia and Guyana.

Review Our Reserves & Resources

Technical Reports

Our Technical Reports offer a deeper look at the geology, mine plans, and operating assumptions behind our growth story. They provide the details that help connect current production with our longer-term expansion potential.

Review Our Technical Reports

Explore Our Other Operations

Segovia

Segovia is a world‑class, high‑grade underground gold mine in Colombia's historic Antioquia district, delivering strong production and room to grow through expanded processing and a successful contract mining partner model.

Learn More About Segovia

Marmato

We are transforming Marmato in Colombia from a small-scale, narrow vein operation into a high-capacity, mechanized mining complex by developing the Bulk Mining Zone and commissioning a new 5,000 tpd CIP plant.

Learn More About Marmato

Soto Norte

Soto Norte is a high-quality underground gold project in Colombia positioned for responsible, long-term development, with a 2025 prefeasibility study highlighting strong economics, low costs, and industry-leading environmental safeguards.

Learn More About Soto Norte