| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 352.78 | USD | 20251111 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.0 | USD | 20251111 |
| Henan Sendi EnvTech | China national standards | MT | 352.78 | USD | 20251111 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.09 | USD | 20251110 |
| Henan Sendi EnvTech | China national standards | MT | 352.83 | USD | 20251110 |
| Henan Sendi EnvTech | China national standards | MT | 352.83 | USD | 20251110 |
| Henan Sendi EnvTech | China national standards | MT | 352.93 | USD | 20251107 |
| Henan Sendi EnvTech | China national standards | MT | 352.93 | USD | 20251107 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.27 | USD | 20251107 |
| Henan Sendi EnvTech | China national standards | MT | 352.78 | USD | 20251106 |