Yunnan Copper
Corporate brand
UnclaimedA major Chinese copper producer spanning mining, smelting, refining, metal processing, by-product recovery, and related industrial activities.
Last updated October 12, 2026
Overview
Yunnan Copper is a Chinese copper company headquartered in Kunming, Yunnan Province. The business traces its origins to 1958, when the Yunnan Smelting Plant was established. It subsequently developed into Yunnan Copper Company Limited, a publicly listed enterprise identified on the Shenzhen Stock Exchange by the ticker 000878. The company is described as one of China's largest copper producers, with the cited reference material ranking it third nationally. Its principal activities cover the copper value chain. These include copper mining and concentrate production, smelting and refining, the manufacture of copper products, and the recovery or sale of valuable accompanying metals and chemicals. Its reported product portfolio includes copper cathode, copper concentrate, copper rod, bare copper wire, sulfuric acid, gold, silver, platinum, palladium, selenium, tellurium, bismuth, copper sulfate, and nickel sulfate. This breadth reflects the economics of copper metallurgy, where precious metals, minor metals, and industrial chemicals can be recovered alongside refined copper. A significant ownership development occurred in November 2007, when Aluminum Corporation of China Limited acquired 49 percent of the total shares of Yunnan Copper Group, the parent group associated with the listed company. The transaction connected Yunnan Copper more closely with Chinalco, a large state-owned metals group, and is an important part of the company's corporate history. The available reference material does not establish the full present-day ownership structure of the listed company, so the precise current shareholding percentages are not stated here. Yunnan Copper has also participated in downstream and energy-efficiency applications for copper. In 2006, it and Nanyang Explosion Protection Group Co. established Yunnan Copper Die Casting Co. Ltd., a joint venture focused on copper-rotor electric motors. The venture's work included commercializing motors using cast copper rotors and, later, remanufacturing older motors by replacing aluminum rotors with copper ones. In 2013, the International Copper Association worked with Yunnan Copper Die Casting on a program intended to improve the efficiency of existing electric motors. Replacing an aluminum rotor with a cast copper rotor can increase motor efficiency and help older equipment meet newer efficiency requirements. This activity extended the company's relationship with copper beyond primary production and into technology applications that promote copper demand. The company therefore combines the profile of a large industrial metals producer with a diversified metallurgical product base and selected downstream initiatives. Its competitive identity is associated with scale, an integrated copper chain, recovery of valuable by-products, and its relationship with the Chinalco group. Publicly available material supplied for this dossier is limited and does not provide current production volumes, reserves, revenue, executive biographies, detailed mine assets, or a complete account of present operations. Those matters require further verification from company filings and current official disclosures.
History
Yunnan Copper's institutional history begins in 1958 with the establishment of the Yunnan Smelting Plant in Kunming, Yunnan. The plant formed the foundation for a copper-centered industrial enterprise in a region that later became closely associated with the company's name. Over time, the organization expanded beyond basic smelting into a broader chain encompassing copper mining, concentrate handling, refining, fabrication, and recovery of other metals present in copper-bearing materials. The resulting business model is characteristic of a large integrated non-ferrous-metals producer. Copper ore and concentrate can generate several saleable outputs during processing, including refined copper, sulfuric acid from smelter gases, and precious or minor metals. Yunnan Copper's documented product range includes cathode copper, copper rod, bare copper wire, gold, silver, platinum, palladium, selenium, tellurium, bismuth, copper sulfate, and nickel sulfate. The range indicates that the company's industrial role extends beyond the production of a single base metal. The company later became Yunnan Copper Company Limited and entered the public market under Shenzhen Stock Exchange ticker 000878. The supplied reference identifies it as the third-largest copper producer in China, although it does not provide the measurement basis or a current ranking date. Accordingly, that description is retained as historical reference context rather than presented as a current independently verified ranking. A major corporate turning point came in November 2007. Aluminum Corporation of China Limited acquired 49 percent of Yunnan Copper Group, the parent group associated with the listed company. The investment brought Yunnan Copper into a closer relationship with Chinalco and linked its copper operations to one of China's major state-owned metals groups. The supplied material does not specify later changes in shareholding or provide a complete current ownership chart. Yunnan Copper also developed an adjacent industrial initiative through Yunnan Copper Die Casting Co. Ltd. In 2006, Yunnan Copper and Nanyang Explosion Protection Group Co. formed the joint venture to commercialize electric motors equipped with copper rotors. The initiative addressed the use of copper in motor engineering rather than only in conventional electrical conductors and refined metal products. Copper rotors can provide efficiency advantages over aluminum rotors in suitable motor designs. In 2013, the International Copper Association collaborated with Yunnan Copper Die Casting on a program to remanufacture older electric motors. The approach involved replacing aluminum rotors with cast copper rotors, allowing older motors to achieve materially improved efficiency and potentially satisfy more modern energy-performance standards. This program illustrated how Yunnan Copper-related operations participated in a broader effort to expand copper's role in energy-efficient equipment. Yunnan Copper's documented development is therefore characterized by three connected themes: the growth of a Kunming-based copper smelting operation into a broader industrial group; integration of mining, metallurgy, processing, and by-product recovery; and selective participation in downstream copper applications. The available reference material does not provide enough verified information to reconstruct individual mine acquisitions, production expansion dates, changes in senior management, recent financial performance, or the company's current operational footprint in detail. These areas remain open for research using current annual reports, stock-exchange filings, and official company disclosures.
- 2013
Motor-remanufacturing efficiency program launched
[1]The International Copper Association and Yunnan Copper Die Casting collaborated on replacing aluminum rotors in older motors with cast copper rotors.
- 2007
Chinalco acquires a 49% stake in the parent group
[1]Aluminum Corporation of China Limited acquired 49 percent of Yunnan Copper Group's total shares.
- 2006
Copper-rotor motor joint venture formed
[1]Yunnan Copper and Nanyang Explosion Protection Group established Yunnan Copper Die Casting Co. Ltd. to commercialize copper-rotor electric motors.
- 1958
Yunnan Smelting Plant established
[1]The enterprise's history began with the establishment of the Yunnan Smelting Plant in Kunming, Yunnan.
Products and positioning
A large, integrated Chinese copper producer with capabilities across mining, smelting, refining, processing, and recovery of precious and minor metals.
Refined copper
Copper cathode
A principal refined-copper product produced through the company's smelting and refining activities. Cathode copper is an intermediate or finished industrial material used by fabricators to make wire, rod, sheet, tubing, and other copper products.
Copper mining
Copper concentrate
Concentrated copper-bearing material generated from ore processing. It is an input to smelting and represents the mining side of Yunnan Copper's integrated copper chain.
Copper fabrication
Copper rod and bare copper wire
Processed copper products used principally in electrical and industrial applications. Copper rod serves as a feedstock for wire and cable manufacturing, while bare copper wire is used where conductive copper is required without an insulating covering.
Metallurgical by-products
Precious and minor metals
The documented portfolio includes gold, silver, platinum, palladium, selenium, tellurium, and bismuth. These materials can be recovered during the processing of copper-bearing feedstocks and broaden the value recovered from the metallurgical chain.
Chemical by-products
Industrial chemicals
Yunnan Copper's listed chemical outputs include sulfuric acid, copper sulfate, and nickel sulfate. Sulfuric acid is commonly associated with the treatment of sulfur-bearing smelter gases, while copper and nickel sulfates serve industrial and chemical applications.
Electric motors · 2006
Copper-rotor electric motors
Through Yunnan Copper Die Casting, a joint venture established in 2006, the company participated in the commercialization of electric motors using cast copper rotors. The venture also supported remanufacturing work intended to improve the efficiency of older motors.
Controversies
Marketing campaigns
- 2013Copper-rotor motor remanufacturing program
China
The International Copper Association and Yunnan Copper Die Casting promoted the remanufacture of older electric motors by replacing aluminum rotors with cast copper rotors. The initiative linked copper demand with energy-efficiency improvements in existing equipment.
Outcome. The stated technical outcome was improved motor efficiency, enabling older models to meet modern energy-efficiency standards. Broader commercial results are not provided in the reference material.
Brand decisions
2007
Aluminum Corporation of China invests in Yunnan Copper GroupM&ABackground
Yunnan Copper Group was the parent group associated with Yunnan Copper Company Limited.
Action taken
Aluminum Corporation of China Limited acquired 49 percent of the total shares of Yunnan Copper Group.
Aftermath
The transaction strengthened the company's connection with Chinalco. The supplied sources do not document subsequent ownership changes or operating effects.
2006
Enter copper-rotor motor manufacturing through a joint ventureStrategyBackground
Yunnan Copper and Nanyang Explosion Protection Group established Yunnan Copper Die Casting to commercialize electric motors using copper rotors.
Action taken
The two companies formed a joint venture focused on copper-rotor motor manufacturing and related applications.
Aftermath
The venture later participated in a program to remanufacture older motors by replacing aluminum rotors with cast copper rotors.
Recent events
- 2013
International Copper Association and Yunnan Copper Die Casting launch motor-remanufacturing program[1]
Campaign · Other
A program with Yunnan Copper Die Casting promoted replacing aluminum rotors in older electric motors with cast copper rotors to improve efficiency.
- 2007
Aluminum Corporation of China acquires a 49% stake in Yunnan Copper Group[1]
M&A
Aluminum Corporation of China Limited acquired 49 percent of the total shares of Yunnan Copper Group, the parent group associated with Yunnan Copper.
Sources4 sources
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