1, Zijin Mining (60 1899): The company is a comprehensive mining production enterprise with gold as the leading industry and integrating mineral resources exploration, mining and smelting; The company is rich in non-ferrous mineral resources such as gold, copper and zinc, and has a certain cost advantage. Today, the company invested 3.37 billion yuan to acquire a 37.5% interest in Tampakan copper-gold mine in the Philippines, effectively increasing the company's resource reserves.
2. Western Mining Industry (60 1 168): The company is one of the most important companies in the field of non-ferrous metal resources in China, with rich non-ferrous metal minerals; The company is the second largest producer of lead concentrate, the fourth largest producer of zinc concentrate and the seventh largest producer of copper concentrate in China. It controls five mines and three smelters.
3. Tongling Nonferrous Metals Co., Ltd. (000630): The company is one of the most potential cathode copper producers in China. At present, its copper smelting capacity has exceeded 800,000 tons/year, ranking the top five in the world. The company's product "Tongguan" brand high-purity cathode copper is registered copper of London Metal Exchange and Shanghai Futures Exchange. Compared with the standard products of the exchange, the company's products enjoy a price premium and have obvious industry advantages.
4. China MCC (60 16 18): The company is also in a leading position in the field of non-ferrous metallurgical engineering in China, with the largest non-ferrous metallurgical design institute in China; There are 3 professional geological survey institutes, 3 national metallurgical engineering research institutes, 9 metallurgical engineering design institutes and 3 metallurgical engineering construction enterprises/kloc-0.
Copper element
It is a metallic chemical element and an essential trace element for human body. Copper is also the earliest metal discovered by human beings, which is widely used by human beings and belongs to heavy metals.
Copper is the earliest metal used by human beings. As early as prehistoric times, people began to mine open-pit copper mines and use the obtained copper to make weapons, tools and other utensils. The use of copper had a far-reaching impact on the progress of early human civilization. Copper is a metal that exists in the earth's crust and ocean. The copper content in the crust is about 0.0 1%, and in some copper deposits, the copper content can reach 3%~5%.
Most of the copper in nature exists in the form of compounds, that is, copper ores. Copper minerals and other minerals are polymerized into copper ore, and the mined copper ore is processed into high-grade copper concentrate.