Chile · Mining
Key Facts
Legal challenge Community groups in Penco filed a reclamación de invalidación to overturn the environmental permit (RCA) for Aclara Resources’ rare-earths project.
Unanimous approval The Biobío Regional Environmental Commission approved the RCA unanimously in early June 2026; Aclara called it its final environmental milestone.
Resident concerns Groups allege the review ignored pollution, health, and quality-of-life risks from material removal near the town of Penco.












