La Negra is a small industrial complex 22 km (14 mi) east of Antofagasta, Chile after crossing the coastal mountain range, in the Atacama Desert.

[2][3][4] Among La Negra industries, the two major ones are Altonorte, a copper smelter refinery, and Inacesa, a cement plant.

La Negra is also the intersection of the Pan-American Highway and the road from Antofagasta to Escondida Mine.

[2][3][4] In 2024, the facility was visited by United States Secretary of the Treasury Janet Yellen.

[1] Austin Engineering operate a mining machinery manufacturing facility in La Negra.