| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1254.76 | USD | 20251021 |
| Shandong Hongyang Chem | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Hongyang Chem | China national standards | MT | 1127.87 | USD | 20251021 |
| Liaocheng Yuanze Chem | China national standards | MT | 1015.09 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1106.05 | USD | 20251020 |
| Shandong Jinwen Chem | China national standards | MT | 1042.65 | USD | 20251020 |
| Shandong Zhiheng | China national standards | MT | 1254.0 | USD | 20251020 |
| Shandong Hongyang Chem | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Hongyang Chem | China national standards | MT | 1127.19 | USD | 20251020 |
| Nanjing Runsheng Petro | China national standards | MT | 958.11 | USD | 20251020 |