| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251007 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 633.31 | USD | 20251007 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251007 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 633.31 | USD | 20251007 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251007 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251007 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251005 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20251005 |
| Henan Sendi EnvTech | 1000 VOCs | MT | 633.31 | USD | 20251005 |
| Henan Sendi EnvTech | China national standards | MT | 351.84 | USD | 20250930 |