Toroparu

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

Long-Life Open Pit Gold Project in Guyana

Toroparu is a 100% owned open pit gold development project in western Guyana. In November 2026, Aris Mining published the results of its Prefeasibility Study (PFS) confirming a large-scale, long-life operation with compelling economics, a substantially larger mineral resource base compared to the 2025 PEA1, and a practical development plan designed to reduce execution risk. 

Positioned to become Aris Mining’s next major growth project, Toroparu is advancing toward a construction decision targeted for early 2027.

Reserves & Resources Technical Report

Prefeasibility Study Results{{2}}

5.9 Moz

P&P Gold Reserves

9.3 Moz

M&I Gold Resources

Processing Capacity

7.0 Mtpa

Processing Period

29 years
(including 21 years of mining)

Life of Mine Gold Production

5.6 Moz

Avg. Annual Gold Production (Years 1-17)

258 koz Au

By-products

Ag, Cu

Key Financial Metrics{{4}}

$1,494/oz

AISC

$588M

Average Annual EBITDA (Years 1-17)

$1,005M

Initial Funding Requirement

$2.8B

After-tax NPV5%

31.5%

After-tax IRR

2.2 years

Payback Period

  1.             See technical report entitled “NI 43-101 Technical Report, Preliminary Economic Assessment for the Toroparu Project, Cuyuni-Mazaruni Region, Guyana”, with an effective date of October 21, 2025

    2.      See technical report entitled “NI 43-101 Technical Report, Prefeasibility Study for the Toroparu Project, Cuyuni-Mazaruni Region, Guyana”, with an effective date of November 12, 2026

    3.      For complete mineral resource and reserve technical information, refer to the Reserves and Resources page and the Toroparu technical report.

    4.      Assuming a gold price of $3,600/oz (base case).

    5.      Total estimated initial funding requirement is $1,005 million, comprising $1,017 million in construction capital, $102 million in contingency allowances, and $24 million in working capital during construction, offset by $138 million of construction funding available under the historic Toroparu PMPA.

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