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.
由于伦敦金属交易所的铜、锌和铝等金属价格下跌，智利铜矿企业安托法加斯塔公司（Antofagasta）股价下跌2.9%，至1335便士。
Antofagasta, the owner of copper mines in Chile, declined 2.9 percent to 1,335 pence as copper, zinc and aluminum retreated on the London Metal Exchange.
与去年2季度相比，伦敦金属交易所在这三个月中的铝交易量平均增长39%。
Aluminum for delivery in three months increased 39 percent, on average, in the second quarter from a year earlier on the London Metal Exchange.
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