Connect with us

Misc

The Largest Copper Mines in the World by Capacity

Published

on

largest copper mines

The Largest Copper Mines in the World

Copper is one of the most-used metals in the world, for good reason.

Global copper production has expanded with populations and economies, especially in China, which consumed 54% of the world’s refined copper in 2020. Copper’s demand comes from various industries, ranging from construction to renewable energy.

But before copper reaches its array of end-uses, miners have to extract and refine from deposits within the ground. So where are the world’s largest copper mines, and just how large are they?

Types of Copper Deposits

The location of mines ultimately depends on the occurrence and discovery of copper deposits. There are two main types of copper deposits:

  • Porphyry deposits:
    These are copper ore bodies formed from hydrothermal fluids from magma chambers that lie deep below the deposit.
  • Sediment-hosted deposits:
    These deposits are formed when copper-bearing fluids mix with permeable sedimentary and volcanic rocks.

Copper is primarily sourced from porphyry deposits, which are concentrated in the Americas. Therefore, many of the world’s largest copper mines operate in this region.

Top 20 Copper Mines by Capacity

North, South, and Central America collectively host 15 of the 20 largest copper mines. These three regions combine the capacity for nearly 36% of global copper production in 2020.

RankMineCountryAnnual Production
Capacity (tonnes)
Capacity as a %
Global Production†
1EscondidaChile 🇨🇱 1,400,0007.0%
2CollahuasiChile 🇨🇱 610,0003.1%
3Buenavista del CobreMexico 🇲🇽 525,0002.6%
4MorenciU.S. 🇺🇸 520,0002.6%
5Cerro Verde IIPeru 🇵🇪 500,0002.5%
6*AntaminaPeru 🇵🇪 450,0002.3%
6*Polar DivisionRussia 🇷🇺 450,0002.3%
8Las BambasPeru 🇵🇪 430,0002.2%
9GrasbergIndonesia 🇮🇩 400,0002.0%
10El TenienteChile 🇨🇱 399,0002.0%
11*ChuquicamataChile 🇨🇱 370,0001.9%
11*Los BroncesChile 🇨🇱 370,0001.9%
11*Los PelambresChile 🇨🇱 370,0001.9%
14KansanshiZambia 🇿🇲 340,0001.7%
15Radomiro TomicChile 🇨🇱 330,0001.7%
16*KamotoCongo 🇨🇩300,0001.5%
16*Cobre PanamaPanama 🇵🇦 300,0001.5%
18Bingham CanyonU.S. 🇺🇸 280,0001.4%
19ToquepalaPeru 🇵🇪 265,0001.3%
20SentinelZambia 🇿🇲 260,0001.3%

*Mines with equal capacities have the same rankings. †2020

The Escondida Mine in Chile is by far the world’s largest copper mine. Its annual capacity of 1.4 million tonnes means that it can produce more copper than the second and third-largest mines combined.

Porphyry copper deposits are often characterized by lower grade ores and are mined in open pits. As a result, some of the top copper mines are also among the world’s largest open pits. The Bingham Canyon Mine (seen below) in Utah, United States, is the deepest open pit with a depth of 1.2 km. It’s also the largest man-made excavation on Earth, spanning 4 km wide.

Chuquicamata and Escondida are the second and third-deepest open pits, respectively.

Indonesia’s Grasberg Mine is another notable name on this list. It produces both gold and copper on a massive scale and has the world’s largest known reserve of gold and the second-largest reserve of copper.

Overall, the top 20 mines have the capacity to produce nearly nine million tonnes of copper annually—representing 44% of global production in 2020. However, with demand for refined copper expected to rise 31% between 2020 and 2030, these existing sources of supply might not be enough.

Falling Grades, Rising Demand: New Mines on the Block?

According to the International Energy Agency, average copper ore grades in Chile have declined by 30% in the last 15 years. Since Chile’s mines produce more than one-fourth of the world’s copper, these falling ore grades could be a cause for concern—especially with a deficit looming over the market for refined copper.

New copper mining projects are becoming more valuable and it wouldn’t be surprising to see fresh names on the list of the largest copper mines. For example, the Kamoa-Kakula Mine, which started production in May 2021, is expected to churn out 800,000 tonnes of copper annually after expansion. That would make it the second-largest copper mine by capacity.

Click for Comments

Misc

Brass Rods: The Secure Choice

This graphic shows why brass rods are the secure choice for precision-machined and forged parts.

Published

on

Teaser of bar chart and pie chart highlighting three ways brass rods empower manufacturers in the competitive market for precision-machined and forged products.

Brass Rods: The Secure Choice

The unique combination of machinability and recyclability makes brass rods the secure choice for manufacturers seeking future-proof raw material solutions.

This infographic, from the Copper Development Association, shows three ways brass rods give manufacturers greater control and a license to grow in the competitive market for precision-machined and forged products.

Future-Proof Investments in New Machine Tools

A material’s machinability directly impacts machine throughput, which typically has the largest impact on machine shop profitability.

The high-speed machining capabilities of brass rods maximize machine tool performance, allowing manufacturers to run the material faster and longer without sacrificing tool life, chip formation, or surface quality.

The high machining efficiency of brass leads to reduced per-part costs, quicker return on investment (ROI) for new machine tools, and expanded production capacity for new projects.

Supply Security Through Closed Loop Recycling

Brass, like its parent element copper, can be infinitely recycled.

In 2022, brass- and wire-rod mills accounted for the majority of the 830,000 tonnes of copper recycled from scrap in the U.S.

Given that scrap ratios for machined parts typically range from 60-70% by weight, producing mills benefit from a secure and steady supply of clean scrap returned directly from customers, which is recycled to create new brass rods.

The high residual value of brass scrap creates a strong recycling incentive. Scrap buy back programs give manufacturers greater control over raw material net costs as scrap value is often factored into supplier purchase agreements.

Next Generation Alloys for a Lead-Free Future

Increasingly stringent global regulations continue to pressure manufacturers to minimize the use of materials containing trace amounts of lead and other harmful impurities.

The latest generation of brass-rod alloys is engineered to meet the most demanding criteria for lead leaching in drinking water and other sensitive applications.

Seven brass-rod alloys passed rigorous testing to become the only ‘Acceptable Materials’ against lower lead leaching criteria recently adopted in the national U.S. drinking water quality standard, NSF 61.

Learn more about the advantages of brass rods solutions.

Continue Reading

Misc

Brass Rods: The Safe Choice

From airbags to firefighting equipment, components made from brass rods play a vital role in creating a safer environment.

Published

on

Graphic illustrating how the use of brass rods can prevent fires and create safer environments.

Brass Rods: The Safe Choice

From airbags to firefighting equipment, components made from brass rods play a vital role in creating a safer environment.

This infographic from the Copper Development Association illustrates three use cases for brass. This is the first of three infographics in our Choose Brass series.

Why Brass?

Brass is one of the most reliable metals for industrial and other applications. It contains little to no iron, protecting it from oxidation, which can cause other materials to fail over time.

Additionally, the malleability of brass ensures tight and leak-free metal-to-metal seals for threaded joints, minimizing the risk of costly and dangerous system failures. Brass’s durability ensures critical system components function properly for years.

Brass for Safe Water Systems

Exposure to lead in water can cause various health problems, including neurological damage, developmental delays, and cardiovascular diseases.

As a result, the U.S. sets minimum health-effect requirements for chemical contaminants and impurities indirectly transferred to drinking water from products, components, and materials used in water systems.

Currently, only brass rod alloys are designated as “acceptable materials” according to national standards.

Brass is also essential for ensuring workplace safety, particularly in high-risk manufacturing environments.

Using Brass for Safe Manufacturing and Industrial Environments

Brass is used extensively in industrial applications such as machinery components, valves, fittings, architectural elements, bearings, and gears.

The machinability of brass rods also means longer tool life and higher productivity for manufacturers of precision parts.

The microstructure of brass helps break up metal chips generated during machining operations, preventing long and stringy chips that can crash machines and seriously injure operators.

Additionally, brass’s non-sparking properties make it ideal for tooling, fittings, and components in high-risk industries such as oil & gas, chemicals, pharmaceuticals, paint manufacturing, power plants, and explosives.

Brass for Safer Communities

Many pieces of equipment in our daily lives also rely on brass rod parts to function. Control valves in gas stoves, BBQs, and home furnaces made from brass rods reduce the risk of deadly gas leaks and fires.

Moreover, brass is ideal for firefighting equipment due to its corrosion resistance, durability, heat resistance, and non-sparking properties.

Fittings made from brass rods ensure that the brakes and airbags in our vehicles work when needed.

Brass and other copper-based alloys are also naturally antimicrobial, helping prevent diseases when used in high-touch surfaces such as door handles.

These are only some of the ways that brass rods help build a safer world for everyone.

Explore the Advantages of Brass Rod Solutions.

Continue Reading

Subscribe

Popular