Statement about the injunction against the flyer campaign of the “Coalition for Corporate Responsibility”
Glencore confirms it applied for an injunction against the “Coalition for Corporate Responsibility”, which was granted by the Higher Court of the Canton of Zug (Obergericht des Kantons Zug).
The application was prompted by what we consider to be disparaging, inaccurate and misleading statements concerning Glencore in a planned flyer campaign.
The campaign features Antamina, an independently managed joint venture in which we hold a minority shareholding and which we do not operate.
We take allegations against our operations and Joint Ventures seriously. However, the campaign provides a misleading picture by reducing a complex issue to a sensationalist headline that cannot be supported by facts and does not support constructive debate on the real issues at hand.
In particular, the flyer creates the impression that Glencore bears the responsibility for alleged environmental contamination causing health impacts in residents near a port. Such a causal link is not supported by available evidence.
Most recent findings by Peru’s environmental authority indicate that Antamina’s filtration plant cannot be linked to arsenic levels affecting residents nearby the port.
The flyer also fails to acknowledge that Glencore is not the operator of Antamina and does not exercise day-to-day operational control over the joint venture.
We respect and welcome public debate regarding topics such as responsible business conduct. However, for that debate to be constructive and fair, it needs to be based on verifiable facts, proper regard for context and balanced account of the circumstances. We are committed to engaging constructively and transparently with our stakeholders.
About Antamina
Compañía Minera Antamina S.A. (Antamina) operates the Antamina mine in the Peruvian province of Huari. Antamina’s mining activities take place within a clearly defined area and are carried out under the required permits.
The mine produces copper and zinc concentrates that are transported by pipeline to the Peruvian province of Huarmey and the port city of the same name, from where they are shipped through the port of Punta Lobitos.
Antamina mitigates the risks of its operations including the pipeline through its Environmental and Social Management Plan which was approved by the relevant authorities. This plan includes measures such as the implementation of continuous monitoring systems to track environmental and social performance, community engagement processes, formal grievance mechanisms and internal procedures for investigation, response and corrective action.
Antamina is also subject to oversight from Peruvian environmental and health authorities, who conduct their own monitoring and investigations.
Antamina’s ownership structure
Antamina is an independently managed joint venture between BHP (33.75%), Glencore (33.75%), Teck (22.5%) and Mitsubishi (10%).
Antamina has an independent executive management team, and the shareholders do not exercise operational control over its day-to-day activities.
As a shareholder, Glencore exercises its influence through its representatives on Antamina’s board of directors and governance committees. Glencore expects these representatives to assert their influence to encourage Antamina to act in a manner consistent with Glencore’s Values and Code of Conduct and the intent of our policies.
Allegations against Antamina
We are aware of allegations raised against Antamina. Our representatives on Antamina’s board of directors are engaging with the company’s management on its approach to managing social and environmental matters.
Port in Huarmey
Environmental pollution
Concerns about environmental pollution at Huarmey have been the subject of multiple studies by Peru’s environmental authority, OEFA. Most recently, in January 2026, OEFA concluded that the readings above the applicable limits at groundwater monitoring points around Huarmey, and in the Cascajal aquifer in particular, reflect the natural geology of the area and impacts from agriculture, with activities at the filtration plant having only a limited bearing.
Arsenic
OEFA also found in January 2026 that arsenic remained within the applicable environmental quality standards in groundwater, soil and air, and that the filtration plant cannot be linked to arsenic levels affecting residents.
To date, publicly available findings from the environmental and health authorities indicate that their monitoring in the Huarmey port and surrounding area have not identified arsenic levels that would pose a risk to public health or the environment.
Dust
OEFA investigated dust impacts using a dispersion model, which indicated that particles from the copper and zinc concentrates handled at the filtration plant would not settle to any meaningful extent in the nearby Puerto Huarmey settlement. Higher airborne metal readings occurred only within the plant perimeter and did not extend to neighbouring communities. Accordingly, based on government investigation, no adverse health effects on the population living around the port are anticipated.
Constructive dialogue
Antamina engages in regular open and constructive dialogue with its stakeholders, including communities, civil society, government authorities and international organisations such as the United Nations.
Communities and civil society
Antamina engages directly with the communities around its operations. In Huarmey specifically, a citizen oversight committee established in 2001 has brought together civil society organisations, community representatives and the responsible authorities to scrutinise Antamina’s operations at the port, and it publishes its own findings alongside those of the authorities. Residents can raise concerns directly through a local information office and a formal grievance procedure.
International organisations
Antamina is in dialogue with the United Nations, following its detailed submission to the UN Special Rapporteurs earlier this year. Antamina also provided a detailed response to the allegations posed by the Coalition for Corporate Responsibility.
A complex environment
The assessment of the environmental and social impact of mining operations cannot be made through isolated measurements or reports. Whether an operation has caused harm to people or the environment is a matter for the competent authorities, assessed across groundwater, soil and air studies over time, and weighed against conditions that exist independently of the operation.
That work has been carried out here, and the conclusions are on the public record. Reducing it to a simple claim of blame does not reflect the evidence. Through our representatives on Antamina's board and its governance committees, we will continue to encourage the company to engage with the communities around the operation and with those who raise questions about it, on the basis of what the evidence shows.