Exhibit 21
Subsidiaries of the Registrant as of March 31, 2018
The table below indicates each of the Registrant's subsidiaries, each subsidiary's jurisdiction of incorporation, and the percentage of its voting securities owned by the Registrant or its subsidiaries.
Subsidiaries | State or country of incorporation or organization | % of voting securities | Owned by |
| Modine, Inc. | Delaware | 100% | Registrant |
| Modine ECD, Inc. | Pennsylvania | 100% | Registrant |
| Modine Jackson, Inc. | Delaware | 100% | Registrant |
| Modine Thermal Systems Korea, LLC | Korea | 100% | Registrant |
| Modine Manufacturing Company Foundation, Inc. | Wisconsin | 100% | Registrant |
| Modine Thermal Systems (Changzhou) Company Ltd. | China | 100% | Registrant |
| Modine Thermal Systems (Shanghai) Company Ltd. | China | 100% | Registrant |
| Modine Manufacturing (Canada) Ltd. | Canada | 100% | Registrant |
| Modine Thermal Systems Private Limited | India | 99% | Registrant (1) |
| Modine UK Dollar Limited | UK | 100% | Registrant |
| Airedale International Air Conditioning Limited | UK | 100% | Modine UK Dollar Limited |
| Airedale Group Limited | UK | 100% | Airedale International Air Conditioning Limited |
| Airedale Sheet Metal Limited | UK | 100% | Airedale International Air Conditioning Limited |
| Airedale Compact Systems Limited | UK | 100% | Airedale International Air Conditioning Limited |
| A I A C Air Conditioning S.A. (Pty) Limited | South Africa | 100% | Airedale International Air Conditioning Limited |
| Barkell Limited | UK | 100% | Airedale International Air Conditioning Limited |
| Modine LLC | Delaware | 100% | Modine, Inc. |
| Modine do Brasil Sistemas Termicos Ltda. | Brazil | 99.9% | Modine, Inc. (2) |
| Modine Transferencia de Calor, S.A. de C.V. | Mexico | 99.6% | Modine, Inc. (2) |
| Modine CIS Holding Inc. | Delaware | 100% | Registrant |
| Modine Astro LLC | Delaware | 100% | Modine CIS Holding Inc. |
| Modine Grenada LLC | Delaware | 100% | Modine CIS Holding Inc. |
| Modine Louisville Inc. | Kentucky | 100% | Modine CIS Holding Inc. |
| Modine Jacksonville Inc. | Kentucky | 100% | Modine Louisville Inc. |
| Modine Juarez, S. de R.L. de C.V. | Mexico | 99.97% | Modine Grenada LLC (4) |
| Modine Ramos, S. de R.L. de C.V. | Mexico | 99.97% | Modine Jacksonville Inc. (5) |
| Modine Ramos Servicios, S. de R.L. de C.V. | Mexico | 99.97% | Modine Jacksonville Inc. (5) |
| Modine Acquisition, Inc. | Wisconsin | 100% | Registrant |
| Enidom Dutch Holding C.V. | Netherlands | 99.999% | Modine Acquisition, Inc. (2) |
| Modine Netherlands Holding B.V. | Netherlands | 100% | Enidom Dutch Holding C.V. |
| Modine Caribbean (Barbados) SRL | Barbados | 100% | Enidom Dutch Holding C.V. |
| Modine Asia Holding AB | Sweden | 100% | Modine Netherlands Holding B.V. |
| Modine Thermal Systems (Zhongshan) Co., Ltd. | China | 100% | Modine Asia Holding AB |
| Luvata India Private Ltd. | India | 99.998% | Modine Asia Holding AB (6) |
| Modine Europe GmbH | Germany | 90% | Modine Netherlands Holding B.V. (2) |
| Modine Austria Holding GmbH | Austria | 100% | Modine Europe GmbH |
| Modine Austria GmbH | Austria | 100% | Modine Austria Holding GmbH |
| Modine Austria Immobilien GmbH | Austria | 100% | Modine Austria GmbH |
| Modine Pliezhausen GmbH | Germany | 100% | Modine Europe GmbH |
| Modine RUS Limited Liability Company | Russia | 99% | Modine Europe GmbH (7) |
| Modine Grundstucksverwaltungs GmbH | Germany | 100% | Modine Europe GmbH |
| Modine Wackersdorf GmbH | Germany | 100% | Modine Europe GmbH |
| Modine Neuenkirchen GmbH | Germany | 100% | Modine Europe GmbH |
| Subsidiaries | State or country of incorporation or organization | % of voting securities | Owned by |
| Modine Hungaria Gep. Kft. | Hungary | 100% | Modine Europe GmbH |
| Modine Uden B.V. | Netherlands | 100% | Modine Hungaria Gep. Kft. |
| Modine SRB d.o.o. Sremska | Serbia | 100% | Modine Hungaria Gep. Kft. |
| Modine CIS Austria GmbH | Austria | 100% | Modine Hungaria Gep. Kft. |
| Modine Gailtal GmbH | Austria | 99% | Modine CIS Austria GmbH (7) |
| Modine Pontevico S.r.l. | Italy | 100% | Modine Hungaria Gep. Kft. |
| Modine CIS Italy Srl | Italy | 100% | Modine Pontevico S.r.l. |
| Heat Exchangers UK Ltd. | United Kingdom | 100% | Modine CIS Italy Srl |
| Modine CIS Guadalajara SAU | Spain | 100% | Modine CIS Italy Srl |
| Modine Söderköping AB | Sweden | 100% | Modine CIS Italy Srl |
| Modine Far East Srl | Italy | 100% | Modine CIS Italy Srl |
| Modine Thermal Systems (Wuxi) Co., Ltd. | China | 100% | Modine Far East Srl |
(1) Balance of voting securities held by Modine, Inc.
(2) Balance of voting securities held by the Registrant
(3) Balance of voting securities held by Modine Europe GmbH
(4) Balance of voting securities held by Modine CIS Holding Inc.
(5) Balance of voting securities held by Modine Louisville Inc.
(6) Balance of voting securities held by Modine Far East Srl
(7) Balance of voting securities held by Modine CIS Italy Srl