2005年12月8日
铝业宣布已购买了Alcoa Clos Systems International（Tianjin）Co.，Ltd的30％权益。目前由其合作伙伴中国SunTrust Investment Group Co.，Ltd的合资企业拥有。该合资企业于1994年成立，以生产饮料的塑料关闭。
铝业封闭系统国际（Tianjin）有限公司。现在是一个全资拥有的外国企业。CSI Tianjin于2005年11月24日获得了新的业务许可证。
铝业's presence in China began in 1993 with the creation of the Alcoa Asia Ltd. representative office in Beijing. Since then, Alcoa has established thirteen wholly owned and joint venture operating companies that provide innovative solutions for customers in all major markets. Products produced at our facilities in Qinghuangdao, Shanghai, Tianjin, Kunming and Hangzhou include foil, fasteners, automotive products, construction products, plastic closures and decorative sheet.
http://www.alcoa.com