Dominga is an iron and copper deposit in the Coquimbo Region of northern Chile, where the ores lie in the volcanic and plutonic rocks of the Punta del Cobre Formation and an associated dioritic complex. The proposed development, led by the company Andes Iron, is large: a roughly $2.5 billion plan combining an open-pit mine, a port to ship the ore, and a desalination plant to supply water in a place that has almost none. For its backers, the logic is straightforward. Mining is the backbone of Chile's economy, the world needs copper and iron for everything from construction to the energy transition, and a project of this scale would bring investment and employment to a region that wants both.

The trouble is where it would sit. Dominga's port would operate near the waters of the Pingüino de Humboldt National Reserve, the islands that shelter most of the world's Humboldt penguins along with whales, dolphins, and sea otters. Conservationists, scientists, and many local residents argue that shipping traffic, dredging, and industrial activity would endanger an ecosystem that has no substitute. The people of the surrounding coast, including Indigenous communities, depend on those same waters for fishing and for a growing wildlife-tourism economy that exists only as long as the penguins do. The debate is not abstract here. It is a question of whose livelihood, and which future, the coast is built around.

Dominga also became a national scandal. The deposit was once owned through a company linked to Carlos Alberto Délano, a businessman and friend of former president Sebastián Piñera. The agreement to sell it included an extraordinary provision: a final payment would be made only if no new environmental protection area was established near the mine. Because Piñera's government held power over exactly such decisions, the clause created a glaring conflict of interest. The terms stayed hidden until 2021, when the leaked Pandora Papers exposed them, igniting outrage and feeding into impeachment proceedings against the president. The affair turned Dominga from a regional permitting fight into a symbol of how money, power, and the environment tangle at the highest levels.

Dominga's legal history reads like a pendulum. Authorities rejected the project in 2017 and rejected it again in 2023, each time citing the threat to the reserve, to cheers from conservation groups. Then the rulings began to reverse. In December 2024, an environmental court declared the 2023 rejection illegal, and through early 2025 the dispute swung back and forth between courts and a committee of government ministers. By September 2025, after the Supreme Court rejected appeals from the government and environmental groups and confirmed the 2021 environmental approval as valid, the regional environmental authority formally updated Dominga's status to approved, and the company began working through the hundreds of permits required to build. The fight is not over, and opponents continue to resist. But the deposit that has divided Chile for years is, for now, closer to becoming a mine than it has ever been.