| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec | China national standards | MT | 886.64 | USD | 20250930 |
| Shandong Hongyang Chem | China national standards | MT | 971.08 | USD | 20250930 |
| Sinopec | China national standards | MT | 886.21 | USD | 20250929 |
| Sanjiang Chem | China national standards | MT | 886.21 | USD | 20250929 |
| Sinopec | China national standards | MT | 886.21 | USD | 20250929 |
| Zibo Huibao Chem | China national standards | MT | 1406.69 | USD | 20250929 |
| Shandong Hongyang Chem | China national standards | MT | 969.75 | USD | 20250928 |
| Shandong Hongyang Chem | China national standards | MT | 969.75 | USD | 20250926 |
| Sinopec | China national standards | MT | 886.61 | USD | 20250925 |
| Sinopec | China national standards | MT | 886.61 | USD | 20250925 |