VOICED : El Teniente la mayor mina subterranea busca extender vida util

El Teniente is the world's largest underground copper mine, operated by Chile's state-owned Codelco. The mine has been expanding since 1905, with over 4,500 kilometers of tunnels. Future plans aim to extend its life by 50 years, recovering 2,000 million tons of copper. A $3.9 billion investment will ensure the production of 450,000 tons annually. Automation has modernized operations, with remote control from Rancagua. The expansion will add 2,020 million tons to Chile's reserves, maintaining its status as the world's top copper producer.

What is the significance of El Teniente in the context of global copper mining?

• It is the most technologically advanced copper mine in the world.

• It is the largest open-pit copper mine in the world.

• It is the largest underground copper mine in the world.

• It is the oldest copper mine in the world.

What is the primary goal of the Nielmina project?

• To extend the mine's life by 50 years.

• To reduce the workforce by half.

• To increase the annual production to 1 million tons.

• To close the mine within the next decade.

How much is being invested in the Nielmina project to maintain production levels?

• $2.5 billion

• $1.5 billion

• $3.9 billion

• $5 billion

What technological advancement has been implemented in El Teniente's operations?

• Manual drilling techniques

• Automated drilling controlled remotely

• Increased manual labor

• Use of drones for mining

How much additional copper reserve will the mine's expansion add?

• 2,020 million tons

• 3,000 million tons

• 1,000 million tons

• 1,500 million tons