Kaiser Aluminum Corporation announced plans to further expand heat treat plate capacity at its Trentwood rolling mill in Spokane of Washington.

The investment of approximately USD 21 million to debottleneck various processing centers is expected to increase the rolling mill's heat treat plate capacity approximately 5% as it comes on stream during 2013.

Mr Jack A Hockema president, CEO and chairman of Kaiser Aluminum said that "This additional plate capacity demonstrates our commitment as a strategic supplier to our major commercial aircraft manufacturing and service center customers. The three-phase plate expansion completed in late 2008 broadened our capabilities and more than doubled our heat treat plate production capacity. These debottlenecking plans, enabled by our dedicated and supportive workforce, leverage our strong manufacturing platform at Trentwood to further increase plate capacity in anticipation of exceptionally strong aerospace build rates in the coming years."