1.国际氧化铝市场2005年,世界冶金级氧化铝的总产能约6200万吨,2005年冶金级氧化铝的产量达到6131万吨,世界氧化铝产能几乎是满负荷生产,氧化铝供需仍有99万吨缺口,这是2005年氧化铝国际市场价格大幅上涨的重要原因之一。2006年国际在建的氧化铝产能虽然较多,但大多在2007年以 1. International alumina market In 2005, the world’s metallurgical grade alumina production capacity totaled 62 million tons. In 2005, the output of metallurgical grade alumina reached 61.31 million tons. The alumina production capacity in the world is almost full capacity while the supply and demand for alumina still exist The gap of 990,000 tons, which is one of the important reasons why the price of alumina in the international market rose sharply in 2005. Although the alumina capacity under construction in 2006 was relatively large, most of them were in 2007