Brazil's highest court has halted the installation of the Volta Grande gold mine in Para state. Chief Justice Edson Fachin ruled that Belo Sun Mining Corp failed to sufficiently consult Indigenous groups or meet environmental standards.
The 3.52 million ounce prize in Para state
The Volta Grande project, proposed by the Canadian firm Belo Sun Mining Corp, represents a massive industrial undertaking in the heart of the Amazon. According to the source report, a 2015 feasibility study estimated the mine would extract 3.52 million ounces of gold over a period of 17 years. To achieve this, the company planned to excavate more than 600 million tons of material across a site spanning 24 square kilometres.
This scale of operation makes the project one of the largest potential gold mines in Brazil. However, the provisional ruling by Chief Justice Edson Fachin suggests that the sheer size of the project has not been matched by the rigor of its environmental and social safeguards, specifically regarding the rights of those living near the Xingu River.
Arsenic and mercury risks in the 35 million cubic metre waste dam
A central point of contention in the legal battle is the safeety of the mine's infrastructure . As reported by the Associated Press, a 2021 independent assessment flagged severe risks associated with a proposed waste dam designed to hold 35 million cubic metres of water and mining debris. Researchers warned that a structural failure could leak toxic substances, including mercury and arsenic, into the surrounding environment.
The potential fallout from such a leak is not merely local; the assessment suggested that toxic contamination could travel more than 40 kilometres downstream. For the Indigenous communities relying on the Xingu River for water and food,such a disaster would be catastrophic, turning a source of life into a conduit for poison.
Compounding the damage of the Belo Monte hydroelectric dam
The Volta Grande project does not exist in a vacuum, but rather in a region already scarred by industrialization. The Xingu River has already been fundamentally altered by the Belo Monte hydroelectric dam, one of the largest in Brazil. This dam has disrupted natural water flows and decimated fish populations, which are the primary protein source for local residents.
Environmental advocates and local leaders, such as Sol Juruna of the Middle Xingu Indigenous Women's Movement, argue that adding a large-scale open-pit mine to an already stressed ecosystem is unsustainable. the synergy between the existing dam's damage and the mine's potential pollution creates a cumulative threat that the Supreme Court's ruling appears to acknowledge.
FUNAI's warnings on non-demarcated Indigenous territories
The legal suspension hinges largely on the failure of Belo Sun Mining Corp to protect all affected peoples. Brazil's Indigenous affairs agency, FUNAI, identified critical gaps in the company's impact studies. Specifically, FUNAI argued that the company ignored Indigenous communities living outside of formally demarcated territories, effectively treating them as invisible in the planning process.
Under Brazilian law and International Labour Organization Convention 169, Indigenous peoples have a right to be consulted on projects affecting their lands. by failing to include these non-demarcated groups, Belo Sun Mining Corp left itself vulnerable to the current legal challenge, as the court found the company had not demonstrated full compliance with these mandatory protections.
Belo Sun's silence on the Juruna and Arara claims
Despite the gravity of the Supreme Court's decision, several key questions remain unanswered. Most notably, Belo Sun Mining Corp has not yet responded to requests for comment regarding the suspension or the specific claims made by the Juruna and Arara Indigenous communities, who insist they were never properly consulted.
Furthermore, the current ruling is provisional. It remains unclear whether the company will be able to rectify the "gaps" identified by FUNAI or if a federal court agreement will eventually override the suspension. Until Belo Sun provides a transparent accounting of its consultation process, the project remains in a state of legal limbo.
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