##### 



Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT:

Robbins & Myers, Inc. has the following subsidiaries all of which (i) do business under the name under which they are organized and
(ii) are included in the consolidated financial statements of the Company. The names of such subsidiaries are set forth below.

|                                              |  |                      |  |               |     |  |  | 
|--------------------------------------------- |  | -------------------- |  | ------------- | --- |  |  | 
|                                              |  | Jurisdiction         |  |               |     | 
|                                              |  | in which             |  | Percentage of
|                                              |  | Incorporated         |  | Ownership    
|                                              |  |                      |  |              
|Chemineer de Mexico, S.A. de C.V.             |  | Mexico               |  |               | 100 | 
|Chemineer, Asia, Ptd. Ltd.                    |  | Singapore            |  |               | 75  | 
|Chemineer, Inc.                               |  | Delaware             |  |               | 100 | 
|Dioptec Scan Limited                          |  | United Kingdom       |  |               | 100 | 
|Edlon, Inc.                                   |  | Delaware             |  |               | 100 | 
|FrymaKoruma GmbH                              |  | Germany              |  |               | 100 | 
|Glasteel Parts and Services, Inc.             |  | Delaware             |  |               | 100 | 
|GMM Pfaudler Limited                          |  | India                |  |               | 51  | 
|Ingeniere Pharmaceutique Modulaire S.A.       |  | France               |  |               | 50  | 
|Laetus am Sandberg Geratebau GmbH             |  | Germany              |  |               | 100 | 
|Moyno de Mexico, S.A. de C.V.                 |  | Mexico               |  |               | 51  | 
|Moyno, Inc.                                   |  | Delaware             |  |               | 100 | 
|Pfaudler Equipamentos Industrias Ltda.        |  | Brazil               |  |               | 100 | 
|Pfaudler S.A. de C.V.                         |  | Mexico               |  |               | 100 | 
|Pfaudler Speiss A.G.                          |  | Switzerland          |  |               | 100 | 
|Pfaudler, Inc.                                |  | Delaware             |  |               | 100 | 
|Pfaudler-Werke GmbH                           |  | Germany              |  |               | 100 | 
|R&M Energy Systems de Venezuela, C.A.         |  | Venezuela            |  |               | 100 | 
|Robannic Overseas Finance A.V.V               |  | Netherlands Antilles |  |               | 100 | 
|Robbins & Myers Belgium S.A.                  |  | Belgium              |  |               | 100 | 
|Robbins & Myers Canada, Ltd.                  |  | Canada               |  |               | 100 | 
|Robbins & Myers de Mexico, S.A. de C.V.       |  | Mexico               |  |               | 100 | 
|Robbins & Myers Energy Systems L.P.           |  | Texas                |  |               | 100 | 
|Robbins & Myers Energy Systems, Inc.          |  | Delaware             |  |               | 100 | 
|Robbins & Myers GmbH                          |  | Germany              |  |               | 100 | 
|Robbins & Myers Holdings, Inc.                |  | Delaware             |  |               | 100 | 
|Robbins & Myers International Sales Co., Inc. |  | U.S. Virgin Islands  |  |               | 100 | 
|Robbins & Myers Singapore Private Limited     |  | Singapore            |  |               | 100 | 
|Robbins & Myers U.K. Limited                  |  | England              |  |               | 100 | 
|Rodic S.A. de C.V.                            |  | Mexico               |  |               | 100 | 
|Romaco A.G.                                   |  | Switzerland          |  |               | 100 | 



---



##### 



|                                                   |  |                     |  |  |     |  |  | 
|-------------------------------------------------- |  | ------------------- |  |  | --- |  |  | 
|Romaco Argentina S.A.                              |  | Argentina           |  |  | 50  | 
|Romaco Australia Pty Ltd.                          |  | Australia           |  |  | 100 | 
|Romaco Bosspak                                     |  | Australia           |  |  | 51  | 
|Romaco Finance B.V.                                |  | Netherlands         |  |  | 100 | 
|Romaco Holdings U.K. Limited                       |  | United Kingdom      |  |  | 100 | 
|Romaco Inc.                                        |  | Delaware            |  |  | 100 | 
|Romaco International B.V.                          |  | Netherlands         |  |  | 100 | 
|Romaco Limited                                     |  | Hong Kong           |  |  | 100 | 
|Romaco Machinery Limited                           |  | Ireland             |  |  | 100 | 
|Romaco Machinery, S.A.                             |  | Spain               |  |  | 100 | 
|Romaco N.V.                                        |  | Netherland Antilles |  |  | 100 | 
|Romaco Pharmatechnik GmbH                          |  | Germany             |  |  | 100 | 
|Romaco S.A.                                        |  | Colombia            |  |  | 100 | 
|Romaco S.A.M.                                      |  | Monaco              |  |  | 100 | 
|Romaco S.a.r.l.                                    |  | France              |  |  | 100 | 
|Romaco S.p.A.                                      |  | Italy               |  |  | 100 | 
|Romaco UK Limited                                  |  | United Kingdom      |  |  | 100 | 
|Suzhou Pfaudler Glass-Lined Equipment Co., Limited |  | China               |  |  | 70  | 
|Tycon Technoglass S.p.A.                           |  | Italy               |  |  | 100 | 
|Universal Glasteel Equipment                       |  | Delaware            |  |  | 50  | 
|Zanchetta & C. S.r.L.                              |  | Italy               |  |  | 100 |