Yunnan Copper
 | |
| Company type | State-owned enterprise |
|---|---|
| Industry | Copper products manufacturing |
| Founded | 1958 |
| Headquarters | , |
Area served | People's Republic of China |
Key people | Chairman: Mr. Liu Mingcai |
| Revenue | US$19.8 billion (2023) |
| - US$279.1 million (2023) | |
Number of employees | 9,041 |
| Parent | Yunnan Copper Group |
| Website | Yunnan Copper Company Limited |
Yunnan Copper Company Limited (SZSE: 000878, formerly Yunnan Smelting Plant)[1][2] is the third largest copper producer in China. It was established in 1958 in Kunming, Yunnan.
Its products include copper cathode, sulfuric acid, copper rod, bare copper wire, gold, silver, platinum, palladium, selenium, tellurium, bismuth, copper sulfate and nickel sulfate.[3]
In November 2007, Aluminum Corporation of China Limited acquired 49% of total shares of Yunnan Copper Group, Yunnan Copper Company's parent company.[4]
As of 2017, Yunnan Copper Die Casting, a joint venture between the company and Nanyang Explosion Protection Group Co.,[5] is a known electric motor manufacturer. They specialized in remanufacturing of electric motors by replacing aluminum rotors with copper rotors.[6]
Electric motor manufacturing
[edit]In 2006, Yunnan Copper Co. Ltd. and Nanyang Explosion Protection Group Co. Ltd. established the joint venture Yunnan Copper Die Casting Co. Ltd. to commercialized copper rotor motors.[5]
The International Copper Association, in collaboration with Yunnan Copper Die Casting, launched a program in 2013 to remanufacture old electric motors by replacing their aluminum rotors with cast copper rotors. This process significantly improves motor efficiency, allowing older models to meet modern energy efficiency standards.[6]
See also
[edit]References
[edit]- ^ Yunnan Copper Industry Co., Ltd. Archived May 20, 2011, at the Wayback Machine
- ^ China stocks index moves past 5,000 for the first time
- ^ Yunnan Copper Company Limited
- ^ Chinalco pays $1b for stake in Yunnan Copper
- ^ a b Baldwin, Trista (September 2012). "Industry could take a shine to copper-rotor motors". library.tcdc.or.th. Retrieved 2024-12-07.
- ^ a b Liu, Ren; Zhao, Yuejin; Yang, Xu; Wang, Gen (2017-09-01). "Research on High-efficient Remanufacturing Technologies and Application of Electric Motor". IOP Conference Series: Materials Science and Engineering. 231: 012102. doi:10.1088/1757-899X/231/1/012102.
