Copper producer · Mexico & Chile
Long-life copper for the energy transition.
Four operations across Mexico and Chile, anchored by the Cobre Verde mine in Sonora.
Who we are
A mid-tier copper producer built for the electric age.
Altamira operates long-life, low-cost copper assets across Mexico and Chile, anchored by the Cobre Verde mine in Sonora. We pair operational discipline with a clear pipeline of organic growth, backed by a balance sheet built to fund it.
Our operations
Four assets. Two countries. One metal.
Flagship
Operating
100% owned
Cobre Verde
SONORA, MEXICO · COPPER · OPEN PIT
Altamira’s cornerstone asset is a long-life, low-cost open-pit copper mine with an 18-year reserve life and a fully funded Phase II expansion underway.
182 kt
Annual production
2.6 Mt
Contained reserves
18 yrs
Mine life
Expansion
La Sirena
Sonora, Mexico
Copper-zinc · Underground
Phase II — first ore 2027
Development
Quebrada Azul
Atacama, Chile
Copper · Open pit
1.9 Mt contained Cu
Exploration
Altar Norte
Sonora, Mexico
Copper · Exploration
2026 drill program
Altamira at a glance
Performance, by the numbers.
182kt
Annual copper production · 2025
4.2Mt
Contained copper reserves
4
Operations across Mexico & Chile
US$1.84B
2025 revenue
C$6.8B
Market capitalization
3,400+
Employees & contractors
Sustainability
Copper is the metal of electrification. We mine it responsibly.
From renewable-powered operations to water stewardship and deep community partnership across Sonora and Atacama, responsible production is how we earn the right to grow.
100%
Renewable grid power
0.42
Total recordable injury frequency
78%
Water recycled & reused
2050
Net-zero commitment