| | | | | | | | | | | | | | |
| Subsidiary Name | | Percentage Owned | | State or Other Jurisdiction of Incorporation |
| Allinov Inc. | | 100 | | Quebec, Canada |
| Astec Asia Pacific Ltd. | | 99.997 | | Thailand |
| Astec Australia Pty Ltd | | 100 | | Australia |
| Astec Digital Belgium BV | | 100 | | Belgium |
| Astec Digital Canada Inc. | | 100 | | Quebec, Canada |
| Astec Digital France | | 100 | | France |
| Astec Digital Holdings, LLC | | 100 | | Delaware |
| Astec Digital IP Holding, Inc. | | 100 | | British Columbia, Canada |
| Astec Digital Minds Group Inc. | | 100 | | British Columbia, Canada |
| Astec Digital U.S. Inc. | | 100 | | Tennessee |
| Astec Digital UK | | 100 | | England and Wales |
| Astec do Brasil Fabricacao de Equipamentos Ltda. | | 92.9 | | Brazil |
| Astec Equipment India LLP | | 100 | | India |
| Astec Industries Africa Middle East (Pty) Ltd. | | 100 | | South Africa |
| Astec Industries Europe, Ltd. | | 100 | | Northern Ireland |
| Astec Industries Holdings, LLC | | 100 | | Delaware |
| Astec Industries LatAm SpA | | 100 | | Chile |
| Astec Industries SA Holdings (Pty) Ltd. | | 100 | | South Africa |
| Astec Industries South Africa (Pty) Ltd. | | 100 | | South Africa |
| Astec Industries, Inc. | | 100 | | Tennessee |
| Astec Insurance Company | | 100 | | Vermont |
| Astec Mobile Screens, Inc. | | 100 | | Nevada |
| Astec, Inc. | | 100 | | Tennessee |
| Audobon Manufacturing Corporation | | 100 | | Iowa |
| B.M.H. Systems Corporation | | 100 | | Delaware |
| B.M.H. Systems Inc. | | 100 | | Quebec, Canada |
| Breaker Technology Ltd. | | 100 | | Ontario, Canada |
| Breaker Technology, Inc. | | 100 | | Tennessee |
| Carlson Paving Products, Inc. | | 100 | | Washington |
| CEI Enterprises, Inc. | | 100 | | Tennessee |
| CMI/CSI LLC | | 100 | | Illinois |
| Concrete Equipment Company, Inc. | | 100 | | Nebraska |
| CWMF, LLC | | 100 | | Minnesota |
| Elgin Power and Separation Solutions LLC | | 100 | | Delaware |
| Elgin Separation Solutions Canada Inc. | | 100 | | Canada |
| Elgin Separation Solutions Industrials, LLC | | 100 | | Delaware |
| Elgin Separation Solutions, LLC | | 100 | | Delaware |
| GEFCO, Inc. | | 100 | | Tennessee |
| Heatec, Inc. | | 100 | | Tennessee |
| Jeffrey Rader AB | | 100 | | Sweden |
| Jeffrey Rader Canada Company | | 100 | | Canada |
| Johnson Crushers International, Inc. | | 100 | | Tennessee |
| Kem-Tron Technologies Private Limited | | 100 | | India |
| Kolberg-Pioneer, Inc. | | 100 | | Tennessee |
| Mill Row Limited | | 100 | | Northern Ireland |
| Mineral and Industrial Products, LLC | | 100 | | Delaware |
| Norris Screen and Manufacturing, LLC | | 100 | | West Virginia |
| Peterson Pacific Corp. | | 100 | | Oregon |
| PIW TSG, LLC | | 100 | | Delaware |
| Power Flame Incorporated | | 100 | | Tennessee |