| | | | | |
| Name of Subsidiary | Jurisdiction of Incorporation |
| Solstice Advanced Materials US, Inc. | Delaware |
| Athens Canada Advanced Materials SubCo Ltd. | Alberta, Canada |
| Honeywell Trading (Shanghai) Co., Ltd. | China |
| Honeywell Japan Ltd. | Japan |
| Honeywell Advanced Materials (China) Co. Ltd. | China |
| Honeywell Specialty Chemicals Seelze GmbH | Germany |
| Honeywell Electronic Materials Manufacturing, LLC | Washington |
| ConverDyn, GP | Delaware |
| Honeywell Electronic Materials (Thailand) Co., Ltd. | Thailand |
| Solstice AM Middle East General Trading FZE | United Arab Emirates |
| Solstice AM (Hong Kong) Limited | Hong Kong |
| Athens Enterprise Management (Shanghai) Co., Ltd. | China |
| Honeywell Performance Materials & Technologies Korea Ltd | South Korea |
| Honeywell Electronic Chemicals LLC | Delaware |
| Honeywell (Singapore) Pte Ltd | Singapore |
| Honeywell Electronic Materials Taiwan Co., Ltd. | Taiwan |
| Honeywell Holding LLC | Delaware |
| Honeywell Sinochem Lantian Environmental Protection Materials (Shanghai) Co., Ltd. | China |
| Advanced Materials Arabia | Saudi Arabia |
| Honeywell Polymers (Australia) Pty Limited | Australia |
| Italy Athens S.R.L. | Italy |
| Riedel-de Haen Sozialhilfe Gesellschaft mit beschrȁnkter Haftung | Germany |
| Authentication Technologies LLC | Delaware |
| Australia Athens Pty Ltd | Australia |
| Athens AM GmbH | Austria |
| Athens Canada Advanced Materials NewCo ULC | Alberta, Canada |
| Athens Canada Advanced Materials TC ULC | Alberta, Canada |
| Czech Republic Athens s.r.o. | Czech Republic |
| France Athens SAS | France |
| Athens Deutschland II GmbH | Germany |
| Athens Deutschland III GmbH | Germany |
| Athens AM Holding Limited | Ireland |
| AM Mexico Athens, S. de R.L. de C.V. | Mexico |
| Poland Athens spolka z ograniczona odpowiedzialnoscia | Poland |
| Advanced Materials RO S.R.L. | Romania |