EX-21 3 exhibit2112311910-k.htm EXHIBIT 21 Exhibit


EXHIBIT 21
SUBSIDIARIES OF WESTLAKE *
   Name of Subsidiary
 
State or Other Jurisdiction
of Incorporation or
Organization
 
   Names Doing Business
 
 
 
 
 
Axiall Canada, Inc.
 
Canada
 
Axiall Canada, Inc.
 
 
 
 
 
Axiall Corporation
 
Delaware
 
Axiall Corporation
 
 
 
 
 
Axiall Holdco, Inc.
 
Delaware
 
Axiall Holdco, Inc.
 
 
 
 
 
Axiall Limited Partnership
 
Ontario
 
Axiall Limited Partnership
 
 
 
 
 
Axiall Noteco, Inc.
 
Delaware
 
Axiall Noteco, Inc.
 
 
 
 
 
Axiall Taiwan Ltd.
 
Taiwan
 
Axiall Taiwan Ltd.
 
 
 
 
 
Axiall, LLC
 
Delaware
 
Axiall, LLC
 
 
 
 
 
Eagle Natrium LLC
 
Delaware
 
Eagle Natrium LLC
 
 
 
 
 
Eagle Spinco Inc.
 
Delaware
 
Eagle Spinco Inc.
 
 
 
 
 
Eagle US 2 LLC
 
Delaware
 
Eagle US 2 LLC
 
 
 
 
 
Lagoon LLC
 
Delaware
 
Lagoon LLC
 
 
 
 
 
North American Pipe Corporation
 
Delaware
 
North American Pipe Corporation
   and NAPCO
 
 
 
 
 
North American Specialty Products LLC
 
Delaware
 
North American Specialty Products LLC
 
 
 
 
 
Plastic Trends, Inc.
 
Michigan
 
Plastic Trends, Inc.
 
 
 
 
 
Rome Acquisition Holding Corp.
 
Nova Scotia
 
Rome Acquisition Holding Corp.
 
 
 
 
 
Rome Delaware Corp.
 
Delaware
 
Rome Delaware Corp.
 
 
 
 
 
Royal Building Products (USA) Inc.
 
Delaware
 
Royal Building Products (USA) Inc.
 
 
 
 
 
Royal Group, Inc.
 
Canada
 
Royal Group, Inc.
 
 
 
 
 
Taiwan Chlorine Industries Ltd.
 
Taiwan
 
Taiwan Chlorine Industries Ltd.
 
 
 
 
 
Vinnolit Benelux-France B.V.B.A.
 
Dendermonde, Belgium
 
Vinnolit Benelux-France B.V.B.A.
 
 
 
 
 
Vinnolit GmbH & Co. KG
 
Ismaning, Germany
 
Vinnolit GmbH & Co. KG
 
 
 
 
 
Vinnolit Holdings GmbH
 
Ismaning, Germany
 
Vinnolit Holdings GmbH
 
 
 
 
 
Vinnolit Italia S.r.L.
 
Milan, Italy
 
Vinnolit Italia S.r.L.
 
 
 
 
 
Vinnolit Limited
 
United Kingdom
 
Vinnolit Limited
 
 
 
 
 
Vinnolit Monomer Geschäftsführungs GmbH
 
Ismaning, Germany
 
Vinnolit Monomer Geschäftsführungs GmbH
 
 
 
 
 
Vinnolit Schkopau GmbH
 
Ismaning, Germany
 
Vinnolit Schkopau GmbH
 
 
 
 
 
Vinnolit Treuhand GmbH
 
Ismaning, Germany
 
Vinnolit Treuhand GmbH
 
 
 
 
 
Westlake Chemical Finance Corporation
 
Delaware
 
Westlake Chemical Finance Corporation
 
 
 
 
 
Westlake Chemical Investments, Inc.
 
Delaware
 
Westlake Chemical Investments, Inc.
 
 
 
 
 
Westlake Chemical OpCo LP
 
Delaware
 
Westlake Chemical OpCo LP
 
 
 
 
 
Westlake Chemical Partners GP LLC
 
Delaware
 
Westlake Chemical Partners GP LLC
 
 
 
 
 
Westlake Chemical Partners LP
 
Delaware
 
Westlake Chemical Partners LP
 
 
 
 
 
Westlake Compounds LLC
 
Delaware
 
Westlake Compounds LLC
 
 
 
 
 





Westlake Development Corporation
 
Delaware
 
Westlake Development Corporation
 
 
 
 
 
Westlake International Holdings Cooperatief U.A.
 
The Netherlands
 
Westlake International Holdings Cooperatief U.A.
 
 
 
 
 
Westlake International Holdings II C.V.
 
The Netherlands
 
Westlake International Holdings II C.V.
 
 
 
 
 
Westlake International I B.V.
 
The Netherlands
 
Westlake International I B.V.
 
 
 
 
 
Westlake Longview Corporation
 
Delaware
 
Westlake Longview Corporation
 
 
 
 
 
Westlake Management Services, Inc.
 
Delaware
 
Westlake Management Services, Inc.
 
 
 
 
 
Westlake Olefins LLC
 
Delaware
 
Westlake Olefins LLC
 
 
 
 
 
Westlake Petrochemicals LLC
 
Delaware
 
Westlake Petrochemicals LLC,
   Westlake Petrochemicals LP and WPE
 
 
 
 
 
Westlake Polymers LLC
 
Delaware
 
Westlake Polymers LLC,
   Westlake Polymers LP and WPE
 
 
 
 
 
Westlake Styrene LLC
 
Delaware
 
Westlake Styrene LLC
 
 
 
 
 
Westlake Switzerland GmbH
 
Switzerland
 
Westlake Switzerland GmbH
 
 
 
 
 
Westlake Vinyls Company LP
 
Delaware
 
Westlake Vinyls Company LP
 
 
 
 
 
Westlake Vinyl Corporation
 
Delaware
 
Westlake Vinyl Corporation
 
 
 
 
 
Westlake Vinyls, Inc.
 
Delaware
 
Westlake Vinyls, Inc.
 
 
 
 
 
WPT LLC
 
Delaware
 
WPT LLC and WPT LP
 
 
 
 
 

______________________________
*
Westlake has elected to omit the names of certain subsidiaries. None of the omitted subsidiaries, considered either alone or together with the other omitted subsidiaries of its immediate parent, constitutes a “Significant Subsidiary” as set forth in Section 601(b)(21) of Regulation S-K.