| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Qingmai Tech | China national standards | MT | 790.34 | USD | 20251028 |
| Henan Qingmai Tech | 800 VOCs | MT | 1058.48 | USD | 20251028 |
| Henan Qingmai Tech | 800 VOCs | MT | 1058.11 | USD | 20251027 |
| Henan Qingmai Tech | China national standards | MT | 790.06 | USD | 20251027 |
| Henan Qingmai Tech | 800 VOCs | MT | 1057.41 | USD | 20251024 |
| Henan Qingmai Tech | China national standards | MT | 789.53 | USD | 20251024 |
| Henan Qingmai Tech | China national standards | MT | 789.64 | USD | 20251023 |
| Henan Qingmai Tech | 800 VOCs | MT | 1057.56 | USD | 20251023 |
| Henan Qingmai Tech | 800 VOCs | MT | 1057.02 | USD | 20251022 |
| Henan Qingmai Tech | China national standards | MT | 789.24 | USD | 20251022 |