| | | | | |
| Subsidiary | Jurisdiction of Formation |
| Apergy Artificial Lift de México, S. A. de C.V. | Mexico |
| Apergy Artificial Lift Pty. Ltd | Queensland |
| Apergy Canada ULC | British Columbia |
| Apergy Egypt LLC | Egypt |
| Apergy Energy (Kenya) Limited | Kenya |
| Apergy for Petroleum Services LLC | Egypt |
| Apergy Minority Luxembourg S.à r.l. | Luxembourg |
| Apergy Rods UK Limited | England and Wales |
| Apergy S.A. | Argentina |
| Artificial Lift Performance Limited | Scotland |
| Champion Arabia Co. Ltd. | Saudi Arabia |
| Champion Technologies B.V. | Netherlands |
| Champion Technologies Del Ecuador CIA LTDA. CHAMPIONTECH | Ecuador |
| Champion Technologies do Brasil Servicos e Produtos Quimicos Ltda. | Brazil |
| Champion Technologies Limited | Mauritius |
| Champion Technologies Limited | Scotland |
| Champion Technologies Middle East FZCO | United Arab Emirates |
| ChampionX (RO) Energy Services S.R.L. | Romania |
| ChampionX Argentina S.R.L. | Argentina |
| ChampionX Associate Investment Company Limited | Nigeria |
| ChampionX Australia Pty Ltd | New South Wales |
| ChampionX Azerbaijan LLC | Azerbaijan |
| ChampionX Canada ULC | Alberta |
| ChampionX de Colombia Ltda | Colombia |
| ChampionX EG Holdings LLC | Delaware |
| ChampionX Egypt Holdings Ltd. | England and Wales |
| ChampionX Egypt Ltd. | England and Wales |
| ChampionX Energy India Private Limited | India |
| ChampionX Energy Services Limited | Ghana |
| ChampionX Equatorial Guinea, S.A.R.L. | Equatorial Guinea |
| ChampionX Europe B.V. | Netherlands |
| ChampionX Europe GmbH | Switzerland |
| ChampionX Gabon SARL | Gabon |
| ChampionX Global Inc. | Delaware |
| ChampionX Gulf Limited | Jersey |
| ChampionX Guyana Inc. | Guyana |
| ChampionX Holdings 1 ULC | British Columbia |
| ChampionX International Operations LLC | Delaware |
| ChampionX LA, S.C.A. | Venezuela |