Exhibit 21.0

MUELLER INDUSTRIES, INC.

List of Subsidiaries

						State or Country
Subsidiary*						of Incorporation
ATCO Rubber Products, Inc.						Michigan
Mueller Brass Holding Company, Inc.						Delaware
Mueller Brass Co. (Assumed name: Mueller Brass Products)						Michigan
Extruded Metals, Inc.						Delaware
Mueller Industrial Realty Co.						Michigan
Itawamba Industrial Gas Company, Inc.						Mississippi
Mueller Plastics Holding Company, Inc.						Ohio
Mueller Brass Forging Company, Inc.						Delaware
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
Mueller Copper Tube Company LLC						Delaware
Mueller Fittings, LLC						Mississippi
Mueller Fittings Company, Inc.						Michigan
Kessler Sales & Distribution LLC						Delaware
B&K, LLC (d/b/a BK Products)						Delaware
Heatlink Group USA, LLC						Tennessee
Precision Tube Company, LLC						Pennsylvania
Mueller Southeast, Inc.						Pennsylvania
Southland Pipe Nipples Company, Inc.						Texas
Mueller Tool and Machine, Inc.						Delaware
Mueller Castings 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
DENO Investment Company II, Inc.						Michigan
Tecumseh Products Holdings LLC (7)						Delaware
Tecumseh Products LLC						Michigan
MA Industrial Secured Lending LLC (5)						Delaware
Muellux Holding Company I SARL						Luxembourg
Muellux Holding Company II SARL						Luxembourg
Mueller Middle East B.S.C. (8)						Bahrain
Mueller Europe Investment Company Ltd.						United Kingdom

---

						State or Country
Subsidiary*						of Incorporation
Jungwoo Metal Ind. Co., Ltd. (6)						South Korea
Mueller Europe, Limited						United Kingdom
Westermeyer Industries, Inc.						Illinois
Sherwood Valve Products, Inc.						Ohio
Sherwood Valve LLC						Delaware
DENO Investment Company, Inc.						Michigan
Mueller de Mexico, S.A. de C.V. (1)						Mexico
The Mosack Group, LLC (2)						Delaware
DENO Holding Company, Inc.						Michigan
B & K Industries, Inc.						Illinois
Mueller Copper Tube Products, Inc.						Delaware
Howell Metal Company (d/b/a Precision Tube)						Virginia
Turbotec Products, Inc.						Connecticut
Mueller Canada Holding Co. Ltd.						Yukon Territory
Heatlink Group, Inc.						Alberta
Great Lakes Copper Ltd.						Nova Scotia
Linesets, Inc.						Delaware
Climate Components, LLC						Delaware
Arava Natural Resources Company, Inc.						Delaware
United States Fuel Company						Nevada
King Coal Company						Utah
Canco Oil & Gas Ltd.						Alberta
Aegis Oil & Gas Leasing, Ltd.						Alberta
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
Mining Remedial Recovery Company						Delaware
Carpentertown Coal & Coke Company						Pennsylvania
U.S.S. Lead Refinery, Inc.						Maine
Leon Water Enterprises, Inc. (9)						Texas
Macomber Construction Company						Ohio
Macomber, Incorporated						Ohio
Macomber Building and Land Corporation						Delaware
Mueller Copper Tube West Company, Inc.						Utah
MII Financial Corporation						Michigan
Mueller Streamline Holding S.L.U.						Spain
WTC Holding Co. I, LLC						Delaware
WTC Holding Co. II, LLC						Delaware
Mueller Comercial de Mexico S. de R.L. de C.V. (3)						Mexico
NICNA Mexico Servicios, 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

---

						State or Country
Subsidiary*						of Incorporation
Mueller Streamline Trading, LLC						Delaware
Mueller Streamline China, LLC						Delaware

*All subsidiaries are 100% owned, except as shown.

(1)  Owned by DENO Investment Company, Inc. (99.94%) and Mueller Streamline Co. (.06%)

(2)  Owned by DENO Investment Company, Inc. (17%)

(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 DENO Investment Company II, Inc. (50%)

(6)  Owned by Mueller Europe Investment Company Ltd. (60%)

(7) Owned by DENO Investment Company II, Inc. (50%)

(8) Owned by Muellux Holding Company II SARL (55%)

(9) Owned by OWL Petroleum Company (50%)