| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 353.16 | USD | 20251128 |
| Henan Sendi EnvTech | China national standards | MT | 353.16 | USD | 20251128 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.69 | USD | 20251128 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.78 | USD | 20251127 |
| Henan Sendi EnvTech | China national standards | MT | 353.21 | USD | 20251127 |
| Henan Sendi EnvTech | China national standards | MT | 353.21 | USD | 20251127 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.63 | USD | 20251126 |
| Henan Sendi EnvTech | China national standards | MT | 353.13 | USD | 20251126 |
| Henan Sendi EnvTech | China national standards | MT | 353.13 | USD | 20251126 |
| Henan Sendi EnvTech | China national standards | MT | 352.98 | USD | 20251125 |