Aleris Corporation (the “Company”) is filing this Current Report on Form 8-K to provide an update regarding the merger (the “Merger”) contemplated by the Agreement and Plan of Merger, dated August 29, 2016 (the “Merger Agreement”), among the Company, Zhongwang USA LLC, Zhongwang Aluminum Corporation, and the stockholders representative party thereto. The last sentence in the Company’s disclosure regarding the Merger included in its press release and quarterly report on Form 10-Q for the three months ended March 31, 2017, each issued on May 4, 2017, is updated and replaced with the following:

In order to accommodate the extended process with the Committee on Foreign Investment in the United States (“CFIUS”), the parties are in discussion and intend to extend the termination date of the Merger Agreement, which would otherwise terminate on May 29, 2017 if CFIUS clearance is not obtained by that date.

Forward-Looking Statements

Certain information included herein may be deemed to be “forward-looking statements” within the meaning of the federal securities laws. Statements included herein that are not historical in nature are considered to be forward-looking statements. They include statements regarding our expectations, hopes, beliefs, estimates, intentions or strategies regarding the future. The words “may,” “could,” “would,” “should,” “will,” “believe,” “expect,” “anticipate,” “plan,” “estimate,” “target,” “project,” “look forward to,” “intend” and similar expressions are intended to identify forward-looking statements. Any forward-looking statement is subject to various risks and uncertainties. Accordingly, there are or will be important factors that could cause actual outcomes or results to differ materially from those indicated in these statements. Readers are cautioned not to place undue reliance on such forward-looking statements. We undertake no obligation to publicly update or revise any forward-looking statements, whether in response to new information, futures events or otherwise, except as otherwise required by law.

About ALERIS CORPORATION (NYSE:ARS)

Aleris Corporation is a holding company. The Company is engaged in the manufacture and sale of aluminum rolled products. The Company conducts its business and operations through its subsidiary, Aleris International, Inc. The Company operates through three segments: North America, Europe and Asia Pacific. The North America segment includes approximately nine manufacturing facilities located across the United States that produce rolled aluminum and coated products for the building and construction, truck trailer, automotive, consumer durables, other general industrial and distribution end uses. The Europe segment includes approximately two aluminum rolling mills and an aluminum cast house that produce aerospace plate and sheet, clad brazing sheet and heat-treated plate, among others. The Asia Pacific segment includes the operations of the Zhenjiang rolling mill, which produces plate products for the aerospace, engineering, distribution and other transportation end uses.

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