| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1169.1 | USD | 20251015 |
| Shandong Hongyang Chem | China national standards | MT | 1091.63 | USD | 20251015 |
| Shandong Hongyang Chem | China national standards | MT | 1186.0 | USD | 20251015 |
| Shandong Hongyang Chem | China national standards | MT | 1119.8 | USD | 20251015 |
| Shandong Aite Chem | China national standards | MT | 1267.69 | USD | 20251015 |
| Shandong Jiaen Chem | China national standards | MT | 1178.52 | USD | 20251014 |
| Jinan Dezheng Chem | China national standards | MT | 1041.95 | USD | 20251014 |
| Jinan Dezheng Chem | China national standards | MT | 1041.95 | USD | 20251014 |
| Shandong Jinling Chem | China national standards | MT | 1041.95 | USD | 20251014 |
| Dongying HuataiChem | China national standards | MT | 1041.95 | USD | 20251014 |