| Subsidiaries (All 100% Owned) | ||
| Subsidiaries of the Registrant | State or Other Jurisdiction of Incorporation | |
| Pioneer Transformers, Ltd. | Canada | |
| Barnard Granby Realty, Inc. | Canada | |
| Jefferson Electric, Inc. | Delaware | |
| Jefferson Electric Mexico Holdings LLC | Wisconsin | |
| JE Mexican Holdings, Inc. | Delaware | |
| Nexus Custom Magnetics, LLC | Texas | |
| Nexus Magneticos de Mexico, S. de R.L. de C.V. | Mexico | |
| Pioneer Wind Energy Holdings, Inc. | Canada | |
| Pioneer Wind Energy Systems Inc. | Canada | |
| Pioneer Wind Energy Services, Inc. | Delaware | |
| AAER USA Inc. | Delaware | |
| Wind-Smart LLC | Rhode Island | |
