EX-21.0 5 ex21_0.htm SUBSIDIARIES OF THE REGISTRANT
Exhibit 21.0
MUELLER INDUSTRIES, INC.
List of Subsidiaries

| State or Country
Subsidiary* | of Incorporation
Mueller Brass Holding Company, Inc. | Delaware
Mueller Brass Co. (Assumed name: Mueller Brass Products) | Michigan
Extruded Metals, Inc. (Effective February 27, 2007) | Delaware
Mueller Industrial Realty Co. | Michigan
Itawamba Industrial Gas Company, Inc. | Mississippi
Streamline Copper & Brass Ltd. | Canada
Mueller Plastics Holding Company, Inc. | Ohio
Mueller Plastics Corporation, Inc. | Delaware
MPC Foundry, Inc. | Delaware
MPC Machine Shop, Inc. | Delaware
Mueller Brass Forging Company, Inc. | Delaware
Mueller Copper Tube Company, Inc. | Delaware
Mueller Fittings, LLC | Mississippi
Mueller Fittings Company, Inc. | Michigan
MCTC, LLC | Mississippi
Mueller East, Inc. | Delaware
Mueller Formed Tube Company, Inc. | Delaware
Mueller Impacts Company, Inc. | Delaware
Mueller Press Company, Inc. | Mississippi
Mueller Refrigeration Products Company, Inc. | Delaware
Mueller LBHC, Inc. | Delaware
Lincoln Brass Works, Inc. (Assumed name: Mueller Gas Products) | Michigan
Overstreet-Hughes, Co., Inc. | Tennessee
Mueller Refrigeration LLC | Delaware
Mueller Refrigeration Holding Company, Inc. | Delaware
Mueller Streamline Co. | Delaware
Precision Tube Company, LLC | Pennsylvania
Mueller Southeast, Inc. | Pennsylvania
Southland Pipe Nipples Company, Inc. | Texas
Mueller Tool and Machine, Inc. | Delaware
Mueller Casting Company, Inc. | Delaware
Mueller Packaging, LLC | Mississippi
Micro Gauge, Inc. | Michigan
Microgauge Machining, Inc. | Michigan
Propipe Technologies, Inc. (Assumed name: Mueller Gas Products) | Ohio
WTC Holding Company | Michigan
Muellux Holding Company I SARL | Luxembourg
Muellux Holding Company II SARL | Luxembourg
Mueller Europe Investment Company Ltd. | United Kingdom
Mueller Europe, Limited | United Kingdom
Mueller Primaflow Limited | United Kingdom
Brasscapri Limited | United Kingdom
Primaflow Limited | United Kingdom
KX Company Limited | United Kingdom
Brassware Sales Limited | United Kingdom
Instox Limited | United Kingdom
Westermeyer Industries, Inc. | Illinois

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| State or Country
Subsidiary* | of Incorporation
DENO Investment Company, Inc. | Michigan
Mueller de Mexico, S.A. de C.V. (1) | Mexico
DENO Holding Company, Inc. | Michigan
DENO Acquisition EURL | France
Mueller Europe, S.A. (2) | France
B & K Industries, Inc. | Illinois
Mueller Copper Tube Products, Inc. | Delaware
MCTP, LLC | Michigan
Howell Metal Company | Virginia
Linesets, Inc. | Delaware
Arava Natural Resources Company, Inc. | Delaware
United States Fuel Company | Nevada
King Coal Company | Utah
Canco Oil & Gas Ltd. | Alberta, Canada
Aegis Oil and Gas Leasing Ltd. | Alberta, Canada
Bayard Mining Corp. | Delaware
Washington Mining Company | Maine
Amwest Exploration Company | Delaware
USSRAM Exploration Company | Maine
White Knob Mining Company | Idaho
Arava Exploration Company | Colorado
Summit Systems, Inc. | Delaware
Kennet Company Limited | Bermuda
Mining Remedial Recovery Company | Delaware
Carpentertown Coal & Coke Company | Pennsylvania
U.S.S. Lead Refinery, Inc. | Maine
Leon Water Enterprises, Inc. (50%) | Texas
Macomber Construction Company | Ohio
Macomber, Incorporated | Ohio
Macomber Building and Land Corporation | Delaware
DENO Investment Company II, Inc. | Michigan
MII Financial Corporation | Michigan
Mueller Streamline Holding S.L.U. | Spain
WTC HoldCo I, LLC | Delaware
WTC HoldCo II, LLC | Delaware
Mueller Comercial de Mexico S. de R.L. de C.V. (3) | Mexico
NICNA Mexico, S. de R.L. de C.V. (4) | Mexico
NICNA Mexico Servicios, S. de R.L. de C.V. (4) | Mexico
NICNA Mexico Proyectos, S. de R.L. de C.V. (4) | Mexico
NICNA Mexico Comercial, S. de R.L. de C.V. (4) | Mexico
NICNA Mexico Maquinaria, S. de R.L. de C.V. (4) | Mexico
Mueller Streamline II, LLC | Delaware
Changzhou Mueller Refrigerant Valve Manufacturing Co., Ltd. | China
Mueller Industries Trading (Shanghai) Co., Ltd. | China
Mueller Streamline Trading, LLC | Delaware
Mueller Streamline China, LLC | Delaware
Jiangsu Mueller-Xingrong Copper Industries Limited (5) | China

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*All subsidiaries are 100% owned, except as shown. |
(1) Owned by DENO Investment Company, Inc. (99.94%) and Mueller Streamline Co. (.06%). |
(2) On March 3, 2003, Mueller Europe S.A. filed a petition for liquidation with the Commercial Court of Provins Province, France and, on March 4, the Court declared the entity to be in liquidation. Less than 1% owned by non-affiliated individuals. |
(3) Owned by Mueller Streamline Holding S.L.U. (99.983%), WTC HoldCo I, LLC (0.016% ), and WTC HoldCo II, LLC (0.001% ). |
(4) Less than 1% of the outstanding common stock is owned by WTC HoldCo I, LLC. |
(5) Owned by Mueller Streamline China, LLC (50.5%). |

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