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Metal prices (metal commodities) are only for a few metals quoted on exchanges. Only aluminium alloy, aluminium, copper, lead, nickel, tin, zinc and Nasaac (North American special aluminium alloy) are exchange traded commodities. Other metals (like bismuth, selenium, tellurium, and many others) are traded on market demand and the buyers/sellers themselves set the price. The London Metal Exchange which trades the commodities mentioned above is planning to add trading contracts for cobalt and molybdenum in the course of 2009/2010. Contracts traded on metal exchanges are also called futures contracts. ==Pricing providers== There are companies which provide a pricing service set the price by talking to producers, traders and consumers. These prices are more an indication than an actual exchange price. Unlike the prices on an exchange, pricing providers tend to give a weekly or bi-weekly price. For each commodity they quote a range (low and high price) which reflect the buying and selling range. Between 2000 and 2011, iron ore prices increased about 9-fold due to China's transition from light to heavy industry and its focus on manufacturing.〔Wilson Jeffrey. (''How China drives the Australian iron ore boom (and bust) '' ). 27 August 2012.〕 (China became the world's largest consumer of iron ore in 2003).〔Leaver Richard. (''Same bed, different nightmares: Stern Hu, the iron ore-war, and Australia-China relations'' ). 18th Biennial Conference of the Asian Studies Association of Australia in Adelaide, 5-8 July 2010.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Metal prices」の詳細全文を読む スポンサード リンク
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