| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 1028.56 | USD | 20251020 |
| Shandong Aite Chem | China national standards | MT | 944.02 | USD | 20251020 |
| Shandong Aite Chem | China national standards | MT | 887.66 | USD | 20251020 |
| Hubei 789 Chem | China national standards | MT | 817.21 | USD | 20251020 |
| Hubei 789 Chem | China national standards | MT | 817.21 | USD | 20251020 |
| Jinan Jinhao Chem | China national standards | MT | 1183.55 | USD | 20251020 |
| Wanhua Yantai | China national standards | MT | 879.21 | USD | 20251020 |
| Shandong Kaitai Petro | China national standards | MT | 887.66 | USD | 20251020 |
| Shandong Kaitai Petro | China national standards | MT | 915.84 | USD | 20251020 |
| Shandong Yihe Chem | China national standards | MT | 789.03 | USD | 20251020 |