what company operates the world's largest copper mine?
436761
Corporación del Cobre (Codelco), the Chilean state owned copper producer, has awarded Metso Minerals (Sala) AB a contract to supply 25 metal slurry pumps for the world’s largest copper mine, El Teniente. \nLocated 80km south-east of Santiago, the mine currently produces 35.5 million tonnes/year of ore.\n\nThe Metso pumps will be installed as part of the concentrator plant expansion program. The order includes XM700, XM500 and XM350 pumps. Weighing a hefty 20 tonnes, the XM700 is the largest pump Metso Minerals have ever produced.
56103
"Seventeen companies declined to renounce future involvement in antipersonnel mine production. Company statements came from: AAI Corp. (Maryland), Allen-Bradley (Texas), Alliant Techsystems, Inc. (Minnesota), also representing mine producers Accudyne Corp. (Wisconsin), and Ferrulmatic, Inc. (New Jersey), CAPCO, Inc. (Colorado), Dale Electronics, Inc. (Nebraska), Ensign-Bickford Industries, Inc. (Connecticut), General Electric Company (Connecticut), Lockheed Martin Corp. (Maryland), Mohawk Electrical Systems, Inc. (Delaware), Nomura Enterprise, Inc. (Illinois), Parlex Corp. (Maryland), Quantic Industries, Inc. (California), Raytheon (Massachusetts), Thiokol Corp. (Utah), and Vishay Intertechnology, Inc. (Pennsylvania). \n\nThirteen companies did not respond in writing to Human Rights Watch: Action Manufacturing Co. (Pennsylvania), Aerospace Design, Inc. (California), Amron Corp. (Wisconsin), BI Technologies (California), Consolidated Industries, Inc. (Alabama), Day & Zimmerman, Inc. (Pennsylvania), EMCO, Inc. (Alabama), Formworks Plastics, Inc. (California), Fort Belknap Industries (Montana), Intellitec (Florida), Mason & Hangar/Silas Mason Co., Inc. (Kentucky), Primetec, Inc. (Florida), Unitrode Corp. (New Hampshire)."
568669
The yield of a mine related to the percentage of the ore.  It might be such a low concentration that it isn't worth it to mine it.  In my state, AZ, copper mines have a fixed price where if copper falls below that price, the miners already know they can't make money, so they hold off until the price rises to make it worthwhile.  Most mines do this.
897783
Also check out the " Four Peaks Amethyst Mine", its in Arizona. It will give you additional information which you are seeking.
189153
Cameco is the largest and has mines in Canada and the US.  It trades in New York and Toronto.\n\nUranium mining is extremely speculative.  Hot stocks that look like they have great "upward momentum" will crash unexpectedly.  Good luck.
768018
General Electric\n\nCoach
878521
Copper. It is so brilliant
559983
There are uranium mines in \n\nCanada Australia Kazakhstan Niger Russia \nNamibia  \nUzbekistan USA Ukraine South Africa \nChina \nCzech Repub. Brazil India \nGermany Romania \nPakistan Spain France Portugal \nI'm sure any of them would oblige.
36305
I have no experience in chemistry or in mining, but I do have experience in business and market analysis.  I can give you some general suggestions, but you'll probalby need to do the investigation yourself.\nFirst, you probably want to limit your investigation to mines in the US.\nYou would then want to identify the total number of underground mines in the US (as opposed to open or strip mining).\nThen you would somehow want to assess the size of each mine, perhaps in terms of the total volume of air in each mine.  \nFrom there, you would need to perform some analysis in terms of normal composition of this air (ie. How much CO, how much CO2, O2, Nitrogen, etc.)\nWith this information, you should be able to determine the total volume of CO in each mine at a given time.  With that, you would then want to calculate the toal amount of CO in all mines.\nThe next step, I would think, is to perform some analsysis with regard to the absorption/conversion rate of that CO oxidation catalyst you mention. ie. conversion rate per hour, as an example.\nFrom there, you should be able to calculate how much catalyst would be needed to make this conversion for all CO gas in all mines in the US for a given amount of time and then expand that calculation out to a yearly number.  This would give you a rough estimate of a Total Addressable Market for this product.
397029
I know one company named Virgo International, which is in Mumbai, India.  They are dealing all kinds of trade involving iron ore, cement, scrap(steel), sugar etc.  It founded in 1980.\n\nAnother one at Myanmar.\nVirgo Int'l Co, Ltd\n5/15, Konemyint Yeik Thar Pyay Rd. 7Mile Mayangone Tsp, Yangon, Tel:63284
826017
I have. Last Oct. Too many strip mines. They ( Coal Companies ) are destroying that part of the world. It was not pretty.
951007
Definately Brazil. It is the largest. Argentina is the second largest.
623319
Copper is a tricky one, as there appears to be true demand from China and not that many new ways of digging up significantly more ore.  It might be that people who rely on copper decide to find ways to get around using copper.  Maybe aluminum cable instead?\n\nIn the case of zinc, there is a special price level maybe 10% or so above where it is now, where it is worth melting US pennies (which are 97.5% zinc).  At this price the zinc and copper in pennies becomes worth more than one cent per penny, plus the energy needed to melt it down.  There will then be a huge amount of illegal melting of pennies and demand will be satisfied for awhile.\n\nIn summary I think copper might be higher, but there is a lot of uncertainty due to the various things that could happen, such as a decrease in copper demand.  And zinc price could be limited by penny melting.  I wouldn't invest much in this area personally.
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Environmental effects\n\nModern mining companies in many countries are required to follow strict environmental and rehabilitation codes, ensuring the area mined is returned to its original state, or an even better environmental state than before mining took place. Past mining methods have had, and methods used in countries with lax environmental regulations continue to have, devastating environmental and public health effects. The result can be unnaturally high concentrations of some chemical elements over a significantly wider area of surface. Combined with the effects of water and the new 'channels' created for water to travel through, collect in, and contact with these chemicals, a situation is created where mass-scale contamination can occur.\n\nEnvironmental issues can also include erosion, formation of sinkholes, dangerous sites such as deep holes in child friendly communities, destruction of the environment, loss of biodiversity, and contamination of groundwaters by chemicals from the mining process and products.\n\nSome examples of environmental problems associated with mining operations are:\n\nAshio Copper Mine, Ashio, Japan was the site of substantial pollution at end of the nineteenth century \nBerkeley Lake, an abandoned pit mine in Butte, Montana that has filled with water which is now acidic and poisonous. \nScouriotissa, a copper mine in Cyprus that has been abandoned. Contaminated dust blows off this site. \nTar Creek, an abandoned mining area in Picher, Oklahoma that is now an Environmental Protection Agency superfund site. Water in the mine has leaked through into local groundwater, contaminating it with metals such as lead and cadmium. \n\nAlthough such issues have been associated with some mining operations in the past, modern mining practices have improved significantly and are subject to close environmental scrutiny.
131719
If you are looking for a software for metal mines then it is Surpac. \nIf you are looking for a software for coal mine then it is Minex.
276583
I don't know, but the place to find out would be the Usibelli Coal Mine in Healy, Alaska. They are an open pit mine and are always the first to implement new technologies. Try finding their web site.
1134210
I agree with previous answer.  Copper has come down from its recent peak but should maintain a historic high value.  To stay up to date on current U.S. copper prices go to http://demolition1.blogspot.com