| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Sinopec | China national standards | MT | 1096.4 | USD | 20251211 |
| Derun Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Sinopec | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1068.1 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 806.38 | USD | 20251211 |
| Shandong Jinwen Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Aite Chem | China national standards | MT | 1117.62 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 1131.77 | USD | 20251211 |