| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1044.02 | USD | 20251102 |
| Sinopec | China national standards | MT | 790.07 | USD | 20251102 |
| Sinopec | China national standards | MT | 811.23 | USD | 20251102 |
| Sinopec | China national standards | MT | 818.28 | USD | 20251102 |
| Wanhua Yantai | China national standards | MT | 818.28 | USD | 20251102 |
| Zibo Lishuo Chem | China national standards | MT | 846.5 | USD | 20251101 |
| Zibo Lishuo Chem | China national standards | MT | 846.5 | USD | 20251101 |
| Zibo Lishuo Chem | China national standards | MT | 846.5 | USD | 20251101 |
| Shandong Laya Chem | China national standards | MT | 790.07 | USD | 20251101 |
| Shandong Jinwen Chem | China national standards | MT | 987.58 | USD | 20251101 |