Alcoa says it could raise its hostile $28.6 billion offer for Alcan if warranted, but the Canadian aluminium maker has rebuffed requests for talks, a regulatory filing showed on Tuesday.

• 美国铝业称，如果需要的话其可能提高对加拿大铝业286亿美元的敌意收购报价，但从调查文件来看，加铝已经拒绝了美铝进行商谈的要求。