Compañía Minera Antamina S.A. represents the most significant investment in the history of Peruvian mining (approximately US$2.26 bn). Shortly after initiating its operations, Antamina swiftly became one of the leading national producers of copper and zinc concentrates.

Located at more than 4,300 meters above sea level, Antamina produces different mineral concentrates of which copper and zinc are the main products. The concentrates, which are shipped to smelters abroad, are composed of fine mineral dust that has been reduced to microns. Antamina’s mineral reserves contain other minerals such as molybdenum, silver, lead and bismuth, which are secondary by-products of the production process. Located in the department of Ancash, 270 kilometers northeast of Lima, Antamina has a concentrator plant that is currently the largest polymetallic treatment plant in the world.

Antamina is a Peruvian company with foreign capital and is regulated by Peruvian legislation. Antamina operates in two main areas:

	Mine: located in the Antamina valley, district of San Marcos, Huari, Ancash.
	Punta Lobitos Port: located on the coast of Huarmey.

The mine and the port are connected through a pipeline that runs underground and transports the concentrates produced by the company more than 302 kilometers to the coast, through the department of Ancash.