Exhibit 21.1

SUBSIDIARIES OF PQ GROUP HOLDINGS INC.

 

ENTITY

  

JURISDICTION

PQ Group Holdings Inc.

   Delaware

PQ Holdings Inc.

   Delaware

CPQ Midco I Corporation

   Delaware

PQ Corporation

   Pennsylvania

PQ Holdings I Limited

   United Kingdom

PQ Intermediate Limited

   United Kingdom

PQ Germany GmbH

   Germany

PT PQ Silicas Indonesia

   Indonesia

PQ Sweden A.B.

   Sweden

PQ Finland Oy

   Finland

PQ Silicas Holdings South Africa Pty Ltd.

   South Africa

PQ Silicas South Africa Pty Ltd.

   South Africa

Quaker Chemicals South Africa Pty Ltd.1

   South Africa

PQ International Holdings Inc.

   Delaware

PQ Netherlands Holding LLC

   Delaware

Potters International Holdings S.à.r.l.

   Luxembourg

Potters Leveraged Lender LLC

   Delaware

PQ Silicas Asia Pacific Pte Ltd.

   Singapore

PQ Silicates Ltd.2

   Taiwan

PQ International C.V.

   Netherlands

PQ Netherlands Cooperative LLC

   Delaware

PQ International Coöperatie U.A.

   Netherlands

PQ Silicas Brazil Ltda.

   Brazil

PQ Acquisition B.V.

   Netherlands

PQ Canada Company

   Canada

PQ Australia LLC

   Delaware

NSL Australia Company

   Canada

NSL Canada Company

   Canada

National Silicates Partnership

   Canada

PQ Europe Coöperatie U.A.

   Netherlands

PQ Europe ApS

   Denmark

PQ Silicas B.V.

   Netherlands

PQ Zeolites B.V.

   Netherlands

Zeolyst C.V.3

   Netherlands

PQ Italy S.r.l.

   Italy

PQ France S.A.S.

   France

PQ Silicas UK Limited

   United Kingdom

PQ Chemicals (Thailand) Limited

   Thailand

PQ Holdings Mexicana, S.A. de C.V.4

   Mexico

Silicatos y Derivados, S.A. de C.V.

   Mexico

PQ China (Hong Kong) Limited

   Hong Kong

PQ (Tianjin) Silicates Technology Co., Ltd

   China

PQ Holdings Australia Pty Limited

   Canada

 

1  Represents a joint venture company of which the registrant indirectly owns 49% of the voting equity.
2  Represents a joint venture company of which the registrant indirectly owns 50% of the voting equity.
3  Represents a joint venture company of which the registrant indirectly owns 50% of the voting equity.
4 Represents a joint venture company of which the registrant indirectly owns 80% of the voting equity.


PQ Australia Pty. Limited

   Australia

PQ Mexico Holdings B.V.

   Netherlands

Zeolyst International5

   Kansas

Eco Services Operations Corp.

   Delaware

PQ Asia Inc.

   Delaware

Potters Netherlands Holding LLC

   Delaware

Potters Netherlands Holdings I C.V.

   Netherlands

Potters Netherlands Holdings II B.V.

   Netherlands

Delpen Corporation

   Delaware

Commercial Research Associates, Inc.

   Pennsylvania

PQ Systems Incorporated

   Pennsylvania

PQ Export Company

   Delaware

PQ International, Inc.

   Pennsylvania

Philadelphia Quartz Company

   Pennsylvania

Potters Holdings GP, Ltd.

   Cayman Islands

Potters Holdings, LP

   Cayman Islands

Potters Holdings II GP, LLC

   Delaware

Potters Holdings II, LP

   Delaware

Potters Industries Holding, Inc.

   Delaware

Potters Industries, LLC

   Delaware

SAJB Holding Company, LLC

   Delaware

Potters Ballotini S.A.S.

   France

Societe Recyclage Produit Verrier Industriels SAS

   France

Interminglass Sp. Z.o.o.

   Poland

Interminglass Holding Sp. z.o.o.

   Poland

Potters (Thailand) Limited6

   Thailand

Potters Industries Acquisition Pty. Ltd.

   Australia

Potters Industries Pty. Ltd.

   Australia

Potters Industrial Limitada

   Brazil

Potters Canada Holding Company

   Canada

Potters Canada Holding II Company

   Canada

PNA Partnership

   Canada

Potters-Ballotini Co., Ltd.

   Japan

Potters Nederland B.V.

   Netherlands

Ballotini Panamericana S. de R.L. de C.V.

   Mexico

Potters Ballotini Acquisition GmbH

   Germany

Potters Ballotini GmbH

   Germany

Potters Ballotini Ltd.

   United Kingdom

Northern Cullet Ltd.

   United Kingdom

 

5  Represents a joint venture company of which the registrant indirectly owns 50% of the voting equity.
6  Represents a joint venture company of which the registrant indirectly owns approximately 75% of the voting equity.