Exhibit 21.1

AMTECH SYSTEMS, INC. AND ITS SUBSIDIARIES

SUBSIDIARIES OF THE REGISTRANT

 

Name

 

Jurisdiction in which incorporated

Bruce Technologies, Inc

 

State of Massachusetts

 

 

 

Bruce Technologies Europe GmbH

 

Federal Republic of Germany

 

 

 

BTU Europe Ltd.

 

State of Delaware

 

 

 

BTU International, Inc.

 

State of Delaware

 

 

 

BTU Ltd. (Shanghai)

 

State of Delaware

 

 

 

BTU Overseas, Ltd.

 

State of Delaware

 

 

 

BTU Overseas (Shanghai) Co., Ltd

 

State of Delaware

 

 

 

P.R. Hoffman Machine Products, Inc

 

State of Arizona

 

 

 

R2D Automation SAS

 

France

 

 

 

Amtech Tempress New Energy Technologies Limited

 

China

 

 

 

Kunshan Amtech Tempress Machinery Equipment Co., Ltd.

 

China

 

 

 

Tempress Asia Holding BV

 

The Netherlands

 

 

 

Tempress Engineering BV

 

The Netherlands

 

 

 

Tempress Group Holding BV

 

The Netherlands

 

 

 

Tempress Holdings BV

 

The Netherlands

 

 

 

Tempress Hong Kong Limited

 

Hong Kong

 

 

 

Tempress IP BV

 

The Netherlands

 

 

 

Tempress Manufacturing BV

 

The Netherlands

 

 

 

Tempress Onroerend Goed BV

 

The Netherlands

 

 

 

Tempress PV-Park BV

 

The Netherlands

 

 

 

Tempress Systems, Inc.

 

State of Texas

 

 

 

Tempress Systems BV

 

The Netherlands