Exhibit 21.1

Subsidiaries of Aleris International, Inc.

as of July 5, 2007

	Subsidiary	State or other jurisdiction of incorporation or organization
1.	Alchem Aluminum, Inc.	Delaware
2.	Alchem Aluminum Shelbyville Inc.	Delaware
3.	Aleris Aluminum Austria GmbH f/k/a Corus Aluminium Verkauf GmbH	Austria
4.	Aleris Aluminum Bitterfeld GmbH f/k/a Corus Aluminium Profiltechnik Bitterfeld GmbH	Germany
5.	Aleris Aluminum Bonn GmbH f/k/a Corus Aluminium Profiltechnik Bonn GmbH	Germany
6.	Aleris Aluminum Canada Holding 2, Inc. f/k/a Corus Aluminium Inc.	Canada
7.	Aleris Aluminum Canada L.P. f/k/a Corus L.P.	Canada
8.	Aleris Aluminum Denmark ApS	Denmark
9.	Aleris Aluminum Duffel BVBA f/k/a Corus Aluminium BVBA	Belgium
10.	Aleris Aluminum Europe, Inc. f/k/a Hoogovens Aluminium Europe Inc.	Delaware
11.	Aleris Aluminum France SAS	France
12.	Aleris Aluminum GmbH f/k/a Corus Aluminium GmbH	Germany
13.	Aleris Aluminum Italy Srl f/k/a Corus Aluminium Rolled Products, Italia Srl	Italy
14.	Aleris Aluminum Japan, Ltd. f/k/a Corus Aluminium Japan, Ltd.	Japan
15.	Aleris Aluminum Koblenz GmbH f/k/a Corus Aluminium Walzprodukte GmbH	Germany
16.	Aleris Aluminum Netherlands B.V. f/k/a Corus Aluminium Rolled Products B.V.	Netherlands
17.	Aleris Aluminum Sales Europe GmbH f/k/a Aleris Aluminium Products GmbH	Germany
18.	Aleris Aluminum Service Center NV f/k/a Corus Aluminium Service Center NV	Belgium
19.	Aleris Aluminum Spain, S.A. f/k/a Corus Aluminium Espana SA	Spain
20.	Aleris Aluminum UK Limited	United Kingdom
21.	Aleris Aluminum U.S. Sales, Inc. f/k/a Corus Aluminium Corp.	Delaware
22.	Aleris Aluminum Vogt GmbH f/k/a Corus Aluminium Profiltecknik GmbH	Germany
23.	Aleris Aluminum Vogt GmbH [sp z.o.o.] f/k/a Corus Aluminium Profiltechnik GmbH sp. z o.o.	Poland
24.	Aleris Asia Pacific International (Barbados) Ltd.	Barbados
25.	Aleris Asia Pacific Limited	Hong Kong
26.	Aleris Asia Pacific Zinc (Barbados) Ltd.	Barbados
27.	Aleris Belgium BVBA	Belgium
28.	Aleris Blanking and Rim Products, Inc. (formerly Indiana Aluminum Inc.)	Indiana
29.	Aleris Deutschland Beteiligungsunternehmen Duffel GmbH	Germany
30.	Aleris Deutschland Holding GmbH	Germany
31.	Aleris Deutschland Vier GmbH Co KG	Germany
32.	Aleris Deutschland Vierte Verwaltungs GmbH (1)	Germany
33.	Aleris do Brasil Holding Ltda. (formerly IMCO Brazil Holding Ltda.)	Brazil
34.	Aleris Light Gauge Products, Inc.	Delaware
35.	Aleris Gibraltar Limited	Gibraltar
36.	Aleris Global Luxembourg S.a.r.l	Luxembourg
37.	Aleris Holding Belgium BVBA	Belgium
38.	Aleris Holding Canada Limited	Canada
39.	Aleris Holding Luxembourg S.a.r.l	Luxembourg
40.	Aleris Holding Luxembourg S.a.r.l & Co. KG	Germany
41.	Aleris Hylite B.V. f/k/a Corus Hylite B.V.	Netherlands
42.	Aleris Inc.	Delaware
43.	Aleris Latasa Reciclagem S.A.	Brazil
44.	Aleris Luxembourg S.a.r.l	Luxembourg
45.	Aleris Mexico, S. de R.L. de C.V. (formerly IMCO Reciclaje de Mexico, S. de R.L. de C.V.)	Mexico
46.	Aleris Nevada Management, Inc.	Nevada
47.	Aleris New Gibraltar Limited	Gibraltar
48.	Aleris Nuevo Leon, S. de R.L. de C.V. (formerly IMCO Reciclaje de Nuevo Leon, S. de R.L de C.V.)	Mexico
49.	Aleris Ohio Management, Inc.	Delaware
50.	Aleris Reciclagem Ltda. (formerly IMCO Reciclagem de Materiais Indústria e Comércio Ltda.)	Brazil
51.	Aleris Reciclaje Servicios Administrativos, S. de R.L. de C.V. (formerly IMCO Reciclaje Servicios Administrativos, S. de R.L. de C.V.)	Mexico
52.	Aleris Reciclaje Servicios de Manufactura, S. de R. L. de C.V. (formerly IMCO Reciclaje Servicios de Manufactura, S. de R.L. de C.V.)	Mexico

53.	Aleris Recycling (German Works) GmbH f/k/a VAW-IMCO Guß und Recycling GmbH	Germany
54.	Aleris Recycling Holding B.V. f/k/a IMCO Recycling Holding B.V.	Netherlands
55.	Aleris Recycling Netherlands B.V.	Netherlands
56.	Aleris Recycling (Swansea) Ltd. f/k/a IMCO Recycling (UK) Ltd.	United Kingdom
57.	Aleris (Shanghai) Trading Co. Ltd.	China
58.	Aleris South America Ltda.	Brazil
59.	Aleris Switzerland GmbH	Switzerland
60.	Aleris Technology (Netherlands) BV	Netherlands
61.	Aleris US Zinc (Changshu) Co. Ltd.	China
62.	Alerisalu Aluminum Portugal, Unipessoal, Lda. (formerly Hoogovens Aluminium Portugal Lda.)	Portugal
63.	ALSCO Holdings, Inc.	Delaware
64.	ALSCO Metals Corporation	Delaware
65.	Alumitech, Inc.	Delaware
66.	Alumitech of Cleveland, Inc.	Delaware
67.	Alumitech of Wabash, Inc.	Indiana
68.	Alumitech of West Virginia, Inc.	Delaware
69.	AWT Properties, Inc.	Ohio
70.	BUG-Alutechnik GmbH	Germany
71.	CA Lewisport, LLC	Delaware
72.	CI Holdings, LLC	Delaware
73.	Commonwealth Aluminum, LLC	Delaware
74.	Commonwealth Aluminum Concast, Inc.	Ohio
75.	Commonwealth Aluminum Lewisport, LLC	Delaware
76.	Commonwealth Aluminum Metals, LLC	Delaware
77.	Commonwealth Aluminum Sales Corporation	Delaware
78.	Commonwealth Aluminum Tube Enterprises, LLC	Delaware
79.	Commonwealth Financing Corp.	Delaware
80.	Commonwealth Industries, Inc.	Delaware
81.	Corus Aluminium Extrusions Tianjin Co Ltd(2)	China
82.	Corus Aluminium Japan Ltd.	Japan
83.	Duinlust Grundstucks GmbH	Germany
84.	Dutch Aluminum C.V.	Netherlands
85.	E Street Acquisition Corporation	Delaware
86.	ETS Schaefer Corporation	Ohio
87.	Grundstucksverwaltungsgesellschaft Objekt Wallershein GmbH	Germany
88.	Gulf Reduction Corporation	Delaware
89.	Hoogovens Aluminium Portugal Lda	Portugal
90.	IMCO Indiana Partnership L.P.	Indiana
91.	IMCO International, Inc.	Delaware
92.	IMCO Investment Company	Delaware
93.	IMCO Management Partnership L.P.	Texas
94.	IMCO Recycling of California, Inc.	Delaware
95.	IMCO Recycling of Idaho Inc.	Delaware
96.	IMCO Recycling of Illinois Inc.	Illinois
97.	IMCO Recycling of Indiana Inc.	Delaware
98.	IMCO Recycling of Michigan L.L.C.	Delaware
99.	IMCO Recycling of Ohio Inc.	Delaware
100.	IMCO Recycling of Utah Inc.	Delaware
101.	IMCO Recycling Services Company	Delaware
102.	IMCO Recycling (UK) Ltd.	England
103.	IMSAMET, Inc.	Delaware
104.	Imsamet of Arizona(3)	Arizona
105.	Interamerican Zinc, Inc.	Delaware
106.	MetalChem Handel GmbH	Germany
107.	MetalChem, Inc.	Pennsylvania
108.	Midwest Zinc Corporation	Delaware
109.	Rock Creek Aluminum, Inc.	Ohio
110.	Silver Fox Holding Corp.	Delaware
111.	U.S. Zinc Corporation	Delaware
112.	U.S. Zinc Export Corporation	Texas
113.	Western Zinc Corporation	California

(1) 50% owned.

(2) 61% owned.

(3) 70% owned.