| Name of Subsidiary | Jurisdiction of Incorporation | Percentage Ownership | ||||||
| Balco, Inc. | Kansas | 100% | ||||||
| CONG TY TNHH CONG NGHIEP T.A VIETNAM | Vietnam | 100% | ||||||
| CSW Industrials Holdings, LLC | Delaware | 100% | ||||||
| Greco Aluminum Railings, Ltd. | Canada | 100% | ||||||
| Greco Aluminum Railings (U.S.A.) Inc. | Delaware | 100% | ||||||
| Jet-Lube of Canada Ltd. | Canada | 100% | ||||||
| RectorSeal Australia Pty Ltd | Australia | 100% | ||||||
| RectorSeal, LLC | Delaware | 100% | ||||||
| RectorSeal of Canada Ltd. | Canada | 100% | ||||||
| RS Acquisition Sub, LLC | Delaware | 100% | ||||||
Shell & Whitmore Reliability Solutions, LLC | Delaware | 50% | ||||||
| Shell & Whitmore Reliability Solutions of Canada Ltd. | Canada | 50% | ||||||
| SG Architectural Solutions, LLC | Delaware | 100% | ||||||
| Smoke Guard California, Inc. | Nevada | 100% | ||||||
| Smoke Guard, Inc. | Nevada | 100% | ||||||
| Whitmore Europe Limited | UK | 100% | ||||||
| Whitmore Manufacturing, LLC | Delaware | 100% | ||||||