| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 353.34 | USD | 20251203 |
| Henan Sendi EnvTech | China national standards | MT | 353.14 | USD | 20251202 |
| Henan Sendi EnvTech | China national standards | MT | 353.14 | USD | 20251202 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.65 | USD | 20251202 |
| Henan Sendi EnvTech | China national standards | MT | 353.31 | USD | 20251201 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.96 | USD | 20251201 |
| Henan Sendi EnvTech | China national standards | MT | 353.31 | USD | 20251201 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 635.69 | USD | 20251129 |
| Henan Sendi EnvTech | China national standards | MT | 353.16 | USD | 20251129 |
| Henan Sendi EnvTech | China national standards | MT | 353.16 | USD | 20251129 |