| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Sinopec | China national standards | MT | 888.89 | USD | 20251121 |
| Sinopec | China national standards | MT | 790.12 | USD | 20251121 |
| Sinopec | China national standards | MT | 790.12 | USD | 20251121 |
| Zibo Lishuo Chem | China national standards | MT | 846.56 | USD | 20251121 |
| Shandong Hongyang Chem | China national standards | MT | 895.94 | USD | 20251121 |
| Zibo Lishuo Chem | China national standards | MT | 846.56 | USD | 20251121 |
| Hubei 789 Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Hubei 789 Chem | China national standards | MT | 818.34 | USD | 20251121 |
| Wanhua Yantai | China national standards | MT | 790.12 | USD | 20251121 |