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
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. (Assumed name: Fabricated Tube Products)
 
Tennessee
Mueller Refrigeration LLC
 
Delaware
Mueller Refrigeration Holding Company, Inc.
 
Delaware
Mueller Streamline Co.
 
Delaware
B&K, LLC (d/b/a BK Products)
 
Delaware
Heatlink Group USA, LLC (Incorporated 2/7/2019)
 
Tennessee
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
MA Industrial Secured Lending, LLC (4)
 
Delaware
Muellux Holding Company I SARL
 
Luxembourg
Muellux Holding Company II SARL
 
Luxembourg





 
 
State or Country
Subsidiary*
 
of Incorporation
Mueller Middle East B.S.C. (7)
 
Bahrain
Mueller Europe Investment Company Ltd.
 
United Kingdom
Jungwoo Metal Ind. Co., Ltd. (5)
 
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
DENO Holding Company, Inc.
 
Michigan
B & K Industries, Inc.
 
Illinois
Mueller Copper Tube Products, Inc.
 
Delaware
MCTP, LLC
 
Michigan
Howell Metal Company (d/b/a Precision Tube in VA 4/2019)
 
Virginia
Turbotec Products, Inc.
 
Connecticut
Mueller Canada Holding Co. Ltd.
 
Alberta
Pexcor Manufacturing Co., Inc.
 
Alberta
Heatlink Group, Inc.
 
Alberta
Great Lakes Copper Ltd.
 
Nova Scotia
Die-Mold Tool Limited
 
Ontario
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, 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
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
Tecumseh Products Holdings LLC (6)
 
Delaware
Tecumseh Products Co.
 
Michigan
MII Financial Corporation
 
Michigan
Mueller Streamline Holding S.L.U.
 
Spain
WTC HoldCo I, LLC
 
Delaware
WTC HoldCo II, LLC
 
Delaware





 
 
State or Country
Subsidiary*
 
of Incorporation
Mueller Comercial de Mexico S. de R.L. de C.V. (2)
 
Mexico
NICNA Mexico Servicios, S. de R.L. de C.V. (3)
 
Mexico
NICNA Mexico Proyectos, S. de R.L. de C.V. (3)
 
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
 
 
 
*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 Mueller Streamline Holding S.L.U. (99.983%), WTC HoldCo I, LLC (0.016%), and WTC HoldCo II, LLC (0.001% )
(3) Less than 1% of the outstanding common stock is owned by WTC HoldCo I, LLC
(4)  Owned by WTC Holding Company (50%)
(5)  Owned by Muellux Europe Investment Company Ltd. (60%)
(6)  Owned by DENO Investment Company, Inc. (50%)
(7) Owned by Muellux Holding Company II SARL (40%)