| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 351.87 | USD | 20251011 |
| Henan Sendi EnvTech | China national standards | MT | 351.87 | USD | 20251010 |
| Henan Sendi EnvTech | China national standards | MT | 351.87 | USD | 20251010 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 633.37 | USD | 20251010 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 632.89 | USD | 20251009 |
| Henan Sendi EnvTech | China national standards | MT | 351.61 | USD | 20251009 |
| Henan Sendi EnvTech | China national standards | MT | 351.61 | USD | 20251009 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251008 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 633.31 | USD | 20251008 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251008 |