尽管伦敦金属交易所的铝价过去两个月下跌，但Alcoa受困于不断上涨的生产成本。
Alcoa is grappling with rising production costs while the price of aluminum on the London Metal Exchange has fallen in the past two months.
港交所在2012年收购伦敦金属交易所之后，计划拓展金属交易市场，但受到上海期货交易的阻碍。
The Shanghai Futures Exchange is impeding efforts by Hong Kong Exchanges and Clearing to expand its metals-trading business, following the acquisition of the London metal Exchange in 2012.
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