Barro Alto, Codemin, Araguaia: A Map of Brazil's Nickel Belt

Brazil produces around 70,000 tonnes of nickel per year from operations

scattered across Goiás and Pará. Anglo American's Barro Alto and

Codemin, Vale's Onça Puma, and Horizonte Minerals' Araguaia development

together describe a Brazilian nickel belt that investors outside the

country still tend to underappreciate.¹

The Goiás Cluster: Barro Alto and Codemin

Goiás state hosts two of Brazil's most established nickel operations.

Anglo American's Barro Alto is a ferronickel producer that commissioned

in 2011 alongside Onça Puma, and it has been a consistent contributor to

Brazilian nickel output ever since. Barro Alto uses electric-furnace

smelting of laterite ore to produce ferronickel that flows to

stainless-steel customers in Asia and Europe.

Codemin, also in Goiás and also operated by Anglo American, is a smaller

ferronickel operation that has been producing for several decades. Both

sites benefit from Goiás's industrial infrastructure — power supply,

road transport to Santos and Itaqui for export — that is meaningfully

better than what a standalone laterite project in a less-developed

region could access.

Anglo American's nickel strategy in Brazil has been one of careful

capital management rather than aggressive growth. The company has

maintained the Goiás operations through multiple nickel-price cycles,

and during the 2024-2025 low-price environment it did not announce major

capacity additions or reductions in Brazil — a stability contribution in

an otherwise volatile industry.

Horizonte's Araguaia Project

Horizonte Minerals is the most advanced Brazilian nickel developer

outside the majors. The company's Araguaia project in Pará has moved

through feasibility studies, environmental permitting and initial

construction work during the last several years. Araguaia is a laterite

nickel deposit designed to produce ferronickel at commercial scale once

commissioned.

The project's timeline has been affected by the nickel price environment

and by capital-markets conditions for junior mining companies. Araguaia

is positioned to commission during a period when Indonesian supply

growth has been pressing prices, which creates challenging fundraising

conditions even for projects with solid fundamentals. The project's

eventual commissioning will add meaningful capacity to the Brazilian

total, though the timing remains subject to commodity-cycle and

financing dynamics.

Horizonte's presence in the Brazilian nickel industry is important

beyond Araguaia itself. The company represents the development-stage

pipeline — advanced projects that could scale the country's production

further if they secure funding and reach operational status. Several

other junior developers hold similar advanced-stage positions across

Pará, Mato Grosso and Goiás, though none has yet reached the

construction phase.

Vale and the Pará Complex

Vale's Brazilian nickel operations are anchored by Onça Puma in Pará,

with its newly expanded 40,000-tonne-per-year capacity following the

September 2025 second-furnace commissioning.¹ Vale also operates smaller

nickel assets and maintains advanced-stage development positions in

several Brazilian states.

The strategic rationale for Vale's Brazilian nickel positioning is the

company's overall critical-minerals pivot. As the iron-ore-dominated

corporate profile has faced structural questions, Vale has positioned

Base Metals — copper, nickel, cobalt — as the growth segment. Brazilian

nickel capacity, particularly in the Carajás-adjacent geography, allows

the company to build that growth without depending on acquisitions in

jurisdictions where it has less operating experience.

Smaller Operators and Development Pipeline

Beyond the majors and the main junior developers, a range of smaller

operators contribute incremental tonnage and hold exploration positions

across the Brazilian nickel belt. Votorantim historically operated the

Fortaleza de Minas asset in Minas Gerais, though the operation has been

inactive in recent years. Smaller private and listed developers hold

advanced and early-stage exploration positions in Goiás, Mato Grosso,

Amazonas, Pará and Bahia.

The broader exploration landscape has been active but not dramatic.

Serpentinite-hosted deposits, the classic Brazilian laterite nickel

target, have been mapped extensively by the Brazilian Geological Survey

and by private operators; the deposit class is well-understood

geologically, but most of the known endowment has already been

identified at reconnaissance level. Step-out discoveries are possible

but typical gains are incremental rather than transformational.

The Brazilian Critical Minerals Association, established in 2025,

includes nickel producers alongside lithium, niobium, copper and other

critical-minerals operators. The association's formation signals that

the Brazilian industry views the full critical-minerals portfolio as a

coordinated strategic asset rather than as a set of unrelated commodity

stories.²

The Geography of Brazilian Laterite

Brazilian nickel geography follows a specific geological logic. Laterite

nickel deposits form in the weathering profile above ultramafic source

rocks in tropical climates — precisely the climatic and geological

conditions that dominate central Brazil. The Goiás and Pará nickel

operations sit along the transition zone where ultramafic massifs meet

favourable weathering conditions.

The distribution is unlikely to expand dramatically into new regions

unless new ultramafic source rocks are identified through exploration.

The Brazilian Geological Survey has mapped most of the country's known

ultramafic terranes, and while step-out discoveries are possible, the

core nickel belt is likely to remain concentrated in the states where

production currently occurs.

The comparison with Indonesian geography is instructive. Indonesian

laterite nickel distribution is also climatically and geologically

constrained — to Sulawesi, Halm

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