The Loma Larga project, owned by Canadian company Dundee Precious Metals, is located near the Quimsacocha water reserve. Local NGOs, municipal studies and environmentalists argue that the company’s Environmental Impact Assessment underestimated the risks and contains omissions that could endanger the water supply and the environmental integrity of the region.

There is strong controversy over whether the consultation with the communities affected by Loma Larga was genuinely free, prior and informed: community leaders, activists and some judges report irregularities, pressure, misinformation and a lack of safeguards.

Organisations and activists denounced excessive police presence, incidents of hostility against opponents and allegations of surveillance/intimidation targeting those mobilising against the project.