Between 1997 and 2009, MIDROC's expansion of the mine caused
deforestation and displaced Indigenous
Gujii people from their ancestral land, denying their right to
free, prior and informed consent. Local community members have reported that mine security shoots at people if they get near the mine, and that employment opportunities have systematically excluded local people. Other reports include tumours, headaches, skin conditions, and vision problems. One healthcare provider reported that, "Mothers are having miscarriages every single day...I am not seeing this in other places, only around the mining site." A field study in 2018-2019 found 19 children with "serious deformities and paralysis" in a survey of 36 households.
The Convention on the Elimination of All Forms of Discrimination Against Women (CEDAW) determined that local people's
right to food has also been impaired because their livestock have died, their crops have been reduced, and the food is contaminated. Children's
right to education has also been affected, because children have deformities that make them unable to walk to school or developmental disabilities that local schools lack resources to address. Following protests in 2018, the Ministry of Mines, Petroleum and Natural Gas (MoMPNG) agreed to do an
environmental impact statement for the mine. No previous environmental study had been made public. The Canadian embassy agreed to fund the study. A 2022 paper found that MIROC had created a
resource enclave at Lega Dembi that was distanced from influence by the local community. == Protests ==