| Date | IP Address |
| 2024-11-24 | 3.33.139.32 (ClassC) |
| 2025-11-30 | 54.221.199.186 (ClassC) |
| Date | Domain | IP |
| de.trinseo.com | 2024-11-02 | 152.199.0.29 |
| btvapi.trinseo.com | 2025-08-15 | 172.175.37.19 |
| cn.trinseo.com | 2024-11-30 | 152.199.0.11 |
| www.trinseo.com | 2021-02-19 | 104.239.208.53 |