Metal Ore Mining
Description
Companies in this industry develop mine sites, mine and quarry metallic minerals and provide related support services, and prepare minerals for sale. Major companies include Freeport-McMoRan and Newmont Mining (both based in the US), as well as Anglo American (UK), BHP Billiton (Australia), CMOC Group (China), Glencore (Switzerland), Grupo Mexico (Mexico), Nornickel (Russia), Rio Tinto (UK), and Vale (Brazil).
Australia, Brazil, China, India, and Russia are the top five largest iron ore producing countries in 2024, according to Nasdaq. The world's leading minerals by production value are gold, coal, iron ore concentrates, potash, and copper. China is the world's leading country in the mine production of gold, producing 380 metric tons in 2024, according to World Gold Council.
The US metal ore mining industry includes about 270 establishments with combined annual revenue of about $30 billion, as well as 200 establishments (single-location companies and units of multi-location companies) that provide related support services and generate annual revenue of about $1 billion.
The industry includes companies that mine and process gold, silver, copper, nickel, lead, zinc, iron ore, uranium, and other metals.
COMPETITIVE LANDSCAPE
Demand is driven by industrial production and economic growth, both domestic and foreign. Individual company profitability depends on volume and operating efficiency. Large companies can afford to discover and develop new deposits and increase reserves. Small companies typically own just one mine, limit exploration to that one property, and operate it as efficiently as possible.
Imports come mainly from Brazil, Australia, Peru, Canada, and South Africa, account for about 10% of US production. Exports, which go primarily to Canada, Mexico, China, Japan, and South Korea, account for more than 20% of US production.
PRODUCTS, OPERATIONS & TECHNOLOGY
Major US products include gold ore (about 35% of industry revenue), copper and nickel ore (about 35%), iron ore (about 15%), lead and zinc ore (about 10%), and silver ore (about 5%). Iron ore is used to make steel. Precious metals such as gold and silver are used in jewelry and electronics; copper is commonly used in construction.
Almost all US metal ore mining companies use open-pit mines, where the surface is removed to reach ore deposits. Benches are cut into the mine walls to provide access to progressively deeper ore. The ore is extracted by drilling holes in the rock for explosives. After blasting, the ore is removed using huge earthmoving equipment such as power shovels and draglines. This equipment is bought from major mining and drilling equipment manufacturers. Once the metal is exposed, smaller shovels are used to load it into trucks, rail cars, and conveyors for transport to a mill for processing. Mines are large, typically hundreds of acres, and produce up to half a million tons of ore.
Some companies have their own processing facilities and others sell the unrefined ore to third-party processors. Most gold and copper are processed by the mining company. Processing is called beneficiation and involves removing unwanted parts to improve the quality and purity of the metal. Steps include crushing, washing, filtering, sorting, sizing, separating, and acid leaching.
Processing depends upon the grade of ore. Higher grade oxide ores are processed in mills by grinding the ore into a fine powder and mixing it with water before passing it through a leaching circuit. Lower grade oxide ores are processed using heap leaching, which consists of stacking crushed ore on pads and using a weak leaching solution to dissolve the metal. Chemicals used in the leaching process differ by the metal mined, primarily cyanide solutions for gold and sulphuric acid for copper.
Waste material, created by mining and processing, can be up to 99% of the rock volume in the case of precious metals, such as gold and silver. Mine tailings contain impurities and chemical residues that were used in beneficiation. Acid drainage into groundwater, caused by leakage or seepage during leaching, can be an environmental problem.
Mining exploration and development focuses on finding large-scale deposits of metals and costs may be significant. For new exploration, a feasibility study is completed and exploration conducted using airborne geophysical data, satellite and location devices, field-portable systems, and onsite geological prospecting. Companies often joint venture on exploration projects and then pay royalties to each other for mineral rights. Mining companies either own the property outright or pay royalties or lease payments to the owners for mining rights. Mining is sometimes allowed on government land after rights are secured and royalties paid.
Ore reserves are estimated quantities of proven, probable, or possible material that may be economically mined in the future. Estimates of reserves are based on engineering evaluations and data derived from drilling holes. Mining companies must continually replace areas depleted by production, which makes reserves a major financial asset.
Australia, Brazil, China, India, and Russia are the top five largest iron ore producing countries in 2024, according to Nasdaq. The world's leading minerals by production value are gold, coal, iron ore concentrates, potash, and copper. China is the world's leading country in the mine production of gold, producing 380 metric tons in 2024, according to World Gold Council.
The US metal ore mining industry includes about 270 establishments with combined annual revenue of about $30 billion, as well as 200 establishments (single-location companies and units of multi-location companies) that provide related support services and generate annual revenue of about $1 billion.
The industry includes companies that mine and process gold, silver, copper, nickel, lead, zinc, iron ore, uranium, and other metals.
COMPETITIVE LANDSCAPE
Demand is driven by industrial production and economic growth, both domestic and foreign. Individual company profitability depends on volume and operating efficiency. Large companies can afford to discover and develop new deposits and increase reserves. Small companies typically own just one mine, limit exploration to that one property, and operate it as efficiently as possible.
Imports come mainly from Brazil, Australia, Peru, Canada, and South Africa, account for about 10% of US production. Exports, which go primarily to Canada, Mexico, China, Japan, and South Korea, account for more than 20% of US production.
PRODUCTS, OPERATIONS & TECHNOLOGY
Major US products include gold ore (about 35% of industry revenue), copper and nickel ore (about 35%), iron ore (about 15%), lead and zinc ore (about 10%), and silver ore (about 5%). Iron ore is used to make steel. Precious metals such as gold and silver are used in jewelry and electronics; copper is commonly used in construction.
Almost all US metal ore mining companies use open-pit mines, where the surface is removed to reach ore deposits. Benches are cut into the mine walls to provide access to progressively deeper ore. The ore is extracted by drilling holes in the rock for explosives. After blasting, the ore is removed using huge earthmoving equipment such as power shovels and draglines. This equipment is bought from major mining and drilling equipment manufacturers. Once the metal is exposed, smaller shovels are used to load it into trucks, rail cars, and conveyors for transport to a mill for processing. Mines are large, typically hundreds of acres, and produce up to half a million tons of ore.
Some companies have their own processing facilities and others sell the unrefined ore to third-party processors. Most gold and copper are processed by the mining company. Processing is called beneficiation and involves removing unwanted parts to improve the quality and purity of the metal. Steps include crushing, washing, filtering, sorting, sizing, separating, and acid leaching.
Processing depends upon the grade of ore. Higher grade oxide ores are processed in mills by grinding the ore into a fine powder and mixing it with water before passing it through a leaching circuit. Lower grade oxide ores are processed using heap leaching, which consists of stacking crushed ore on pads and using a weak leaching solution to dissolve the metal. Chemicals used in the leaching process differ by the metal mined, primarily cyanide solutions for gold and sulphuric acid for copper.
Waste material, created by mining and processing, can be up to 99% of the rock volume in the case of precious metals, such as gold and silver. Mine tailings contain impurities and chemical residues that were used in beneficiation. Acid drainage into groundwater, caused by leakage or seepage during leaching, can be an environmental problem.
Mining exploration and development focuses on finding large-scale deposits of metals and costs may be significant. For new exploration, a feasibility study is completed and exploration conducted using airborne geophysical data, satellite and location devices, field-portable systems, and onsite geological prospecting. Companies often joint venture on exploration projects and then pay royalties to each other for mineral rights. Mining companies either own the property outright or pay royalties or lease payments to the owners for mining rights. Mining is sometimes allowed on government land after rights are secured and royalties paid.
Ore reserves are estimated quantities of proven, probable, or possible material that may be economically mined in the future. Estimates of reserves are based on engineering evaluations and data derived from drilling holes. Mining companies must continually replace areas depleted by production, which makes reserves a major financial asset.
Table of Contents
- Industry Overview
- Quarterly Industry Update
- Business Challenges
- Business Trends
- Industry Opportunities
- Call Preparation Questions
- Financial Information
- Industry Forecast
- Web Links and Acronyms
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